ole2.c 72.5 KB
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/*
 *	OLE2 library
 *
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 * Copyright 1995 Martin von Loewis
 * Copyright 1999 Francis Beaudet
 * Copyright 1999 Noel Borthwick
 * Copyright 1999, 2000 Marcus Meissner
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 * Copyright 2005 Juan Lang
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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */

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#include "config.h"

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#include <assert.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#define COBJMACROS
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#define NONAMELESSUNION
#define NONAMELESSSTRUCT
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#include "windef.h"
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#include "winbase.h"
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#include "winerror.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "winnls.h"
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#include "winreg.h"
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#include "commctrl.h"
#include "ole2.h"
#include "ole2ver.h"
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#include "wownt32.h"
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#include "wine/unicode.h"
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#include "wine/winbase16.h"
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#include "wine/wingdi16.h"
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#include "wine/winuser16.h"
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#include "compobj_private.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(ole);
WINE_DECLARE_DEBUG_CHANNEL(accel);
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#define HICON_16(h32)		(LOWORD(h32))
#define HICON_32(h16)		((HICON)(ULONG_PTR)(h16))
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#define HINSTANCE_32(h16)	((HINSTANCE)(ULONG_PTR)(h16))
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/******************************************************************************
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 * These are static/global variables and internal data structures that the
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 * OLE module uses to maintain it's state.
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 */
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typedef struct tagDropTargetNode
{
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  HWND          hwndTarget;
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  IDropTarget*    dropTarget;
  struct tagDropTargetNode* prevDropTarget;
  struct tagDropTargetNode* nextDropTarget;
} DropTargetNode;

typedef struct tagTrackerWindowInfo
{
  IDataObject* dataObject;
  IDropSource* dropSource;
  DWORD        dwOKEffect;
  DWORD*       pdwEffect;
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  BOOL       trackingDone;
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  HRESULT      returnValue;

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  BOOL       escPressed;
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  HWND       curTargetHWND;	/* window the mouse is hovering over */
  HWND       curDragTargetHWND; /* might be a ancestor of curTargetHWND */
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  IDropTarget* curDragTarget;
} TrackerWindowInfo;
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typedef struct tagOleMenuDescriptor  /* OleMenuDescriptor */
{
  HWND               hwndFrame;         /* The containers frame window */
  HWND               hwndActiveObject;  /* The active objects window */
  OLEMENUGROUPWIDTHS mgw;               /* OLE menu group widths for the shared menu */
  HMENU              hmenuCombined;     /* The combined menu */
  BOOL               bIsServerItem;     /* True if the currently open popup belongs to the server */
} OleMenuDescriptor;

typedef struct tagOleMenuHookItem   /* OleMenu hook item in per thread hook list */
{
  DWORD tid;                /* Thread Id  */
  HANDLE hHeap;             /* Heap this is allocated from */
  HHOOK GetMsg_hHook;       /* message hook for WH_GETMESSAGE */
  HHOOK CallWndProc_hHook;  /* message hook for WH_CALLWNDPROC */
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  struct tagOleMenuHookItem *next;
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} OleMenuHookItem;

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static OleMenuHookItem *hook_list;
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/*
 * This is the lock count on the OLE library. It is controlled by the
 * OLEInitialize/OLEUninitialize methods.
 */
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static ULONG OLE_moduleLockCount = 0;

/*
 * Name of our registered window class.
 */
static const char OLEDD_DRAGTRACKERCLASS[] = "WineDragDropTracker32";

/*
 * This is the head of the Drop target container.
 */
static DropTargetNode* targetListHead = NULL;

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/******************************************************************************
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 * These are the prototypes of miscelaneous utility methods
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 */
static void OLEUTL_ReadRegistryDWORDValue(HKEY regKey, DWORD* pdwValue);

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/******************************************************************************
 * These are the prototypes of the utility methods used to manage a shared menu
 */
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static void OLEMenu_Initialize(void);
static void OLEMenu_UnInitialize(void);
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BOOL OLEMenu_InstallHooks( DWORD tid );
BOOL OLEMenu_UnInstallHooks( DWORD tid );
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OleMenuHookItem * OLEMenu_IsHookInstalled( DWORD tid );
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static BOOL OLEMenu_FindMainMenuIndex( HMENU hMainMenu, HMENU hPopupMenu, UINT *pnPos );
BOOL OLEMenu_SetIsServerMenu( HMENU hmenu, OleMenuDescriptor *pOleMenuDescriptor );
LRESULT CALLBACK OLEMenu_CallWndProc(INT code, WPARAM wParam, LPARAM lParam);
LRESULT CALLBACK OLEMenu_GetMsgProc(INT code, WPARAM wParam, LPARAM lParam);

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/******************************************************************************
 * These are the prototypes of the OLE Clipboard initialization methods (in clipboard.c)
 */
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extern void OLEClipbrd_UnInitialize(void);
extern void OLEClipbrd_Initialize(void);
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/******************************************************************************
 * These are the prototypes of the utility methods used for OLE Drag n Drop
 */
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static void            OLEDD_Initialize(void);
static void            OLEDD_UnInitialize(void);
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static void            OLEDD_InsertDropTarget(
			 DropTargetNode* nodeToAdd);
static DropTargetNode* OLEDD_ExtractDropTarget(
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                         HWND hwndOfTarget);
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static DropTargetNode* OLEDD_FindDropTarget(
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                         HWND hwndOfTarget);
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static LRESULT WINAPI  OLEDD_DragTrackerWindowProc(
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			 HWND   hwnd,
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			 UINT   uMsg,
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			 WPARAM wParam,
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			 LPARAM   lParam);
static void OLEDD_TrackMouseMove(
                         TrackerWindowInfo* trackerInfo,
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			 POINT            mousePos,
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			 DWORD              keyState);
static void OLEDD_TrackStateChange(
                         TrackerWindowInfo* trackerInfo,
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			 POINT            mousePos,
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			 DWORD              keyState);
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static DWORD OLEDD_GetButtonState(void);
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/******************************************************************************
 *		OleBuildVersion	[OLE2.1]
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 *		OleBuildVersion [OLE32.@]
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 */
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DWORD WINAPI OleBuildVersion(void)
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{
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    TRACE("Returning version %d, build %d.\n", rmm, rup);
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    return (rmm<<16)+rup;
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}

/***********************************************************************
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 *           OleInitialize       (OLE2.2)
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 *           OleInitialize       (OLE32.@)
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 */
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HRESULT WINAPI OleInitialize(LPVOID reserved)
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{
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  HRESULT hr;

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  TRACE("(%p)\n", reserved);
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  /*
   * The first duty of the OleInitialize is to initialize the COM libraries.
   */
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  hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
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  /*
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   * If the CoInitializeEx call failed, the OLE libraries can't be
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   * initialized.
   */
  if (FAILED(hr))
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    return hr;
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  /*
   * Then, it has to initialize the OLE specific modules.
   * This includes:
   *     Clipboard
   *     Drag and Drop
   *     Object linking and Embedding
   *     In-place activation
   */
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  if (OLE_moduleLockCount==0)
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  {
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    /*
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     * Initialize the libraries.
     */
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    TRACE("() - Initializing the OLE libraries\n");
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    /*
     * OLE Clipboard
     */
    OLEClipbrd_Initialize();

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    /*
     * Drag and Drop
     */
    OLEDD_Initialize();
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    /*
     * OLE shared menu
     */
    OLEMenu_Initialize();
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  }
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  /*
   * Then, we increase the lock count on the OLE module.
   */
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  OLE_moduleLockCount++;
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  return hr;
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}

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/******************************************************************************
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 *		OleUninitialize	[OLE2.3]
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 *		OleUninitialize	[OLE32.@]
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 */
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void WINAPI OleUninitialize(void)
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{
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  TRACE("()\n");
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  /*
   * Decrease the lock count on the OLE module.
   */
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  OLE_moduleLockCount--;
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  /*
   * If we hit the bottom of the lock stack, free the libraries.
   */
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  if (OLE_moduleLockCount==0)
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  {
    /*
     * Actually free the libraries.
     */
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    TRACE("() - Freeing the last reference count\n");
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    /*
     * OLE Clipboard
     */
    OLEClipbrd_UnInitialize();

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    /*
     * Drag and Drop
     */
    OLEDD_UnInitialize();
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    /*
     * OLE shared menu
     */
    OLEMenu_UnInitialize();
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  }
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  /*
   * Then, uninitialize the COM libraries.
   */
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  CoUninitialize();
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}
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/******************************************************************************
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 *		OleInitializeWOW	[OLE32.@]
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 */
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HRESULT WINAPI OleInitializeWOW(DWORD x, DWORD y) {
        FIXME("(0x%08lx, 0x%08lx),stub!\n",x, y);
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        return 0;
}
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/***********************************************************************
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 *           RegisterDragDrop (OLE32.@)
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 */
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HRESULT WINAPI RegisterDragDrop(
	HWND hwnd,
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	LPDROPTARGET pDropTarget)
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{
  DropTargetNode* dropTargetInfo;

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  TRACE("(%p,%p)\n", hwnd, pDropTarget);
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  if (!pDropTarget)
    return E_INVALIDARG;
  
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  /*
   * First, check if the window is already registered.
   */
  dropTargetInfo = OLEDD_FindDropTarget(hwnd);

  if (dropTargetInfo!=NULL)
    return DRAGDROP_E_ALREADYREGISTERED;

  /*
   * If it's not there, we can add it. We first create a node for it.
   */
  dropTargetInfo = HeapAlloc(GetProcessHeap(), 0, sizeof(DropTargetNode));

  if (dropTargetInfo==NULL)
    return E_OUTOFMEMORY;

  dropTargetInfo->hwndTarget     = hwnd;
  dropTargetInfo->prevDropTarget = NULL;
  dropTargetInfo->nextDropTarget = NULL;

  /*
   * Don't forget that this is an interface pointer, need to nail it down since
   * we keep a copy of it.
   */
  dropTargetInfo->dropTarget  = pDropTarget;
  IDropTarget_AddRef(dropTargetInfo->dropTarget);
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  OLEDD_InsertDropTarget(dropTargetInfo);

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	return S_OK;
}
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/***********************************************************************
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 *           RevokeDragDrop (OLE32.@)
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 */
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HRESULT WINAPI RevokeDragDrop(
	HWND hwnd)
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{
  DropTargetNode* dropTargetInfo;

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  TRACE("(%p)\n", hwnd);
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  /*
   * First, check if the window is already registered.
   */
  dropTargetInfo = OLEDD_ExtractDropTarget(hwnd);

  /*
   * If it ain't in there, it's an error.
   */
  if (dropTargetInfo==NULL)
    return DRAGDROP_E_NOTREGISTERED;

  /*
   * If it's in there, clean-up it's used memory and
   * references
   */
  IDropTarget_Release(dropTargetInfo->dropTarget);
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  HeapFree(GetProcessHeap(), 0, dropTargetInfo);
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	return S_OK;
}
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/***********************************************************************
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 *           OleRegGetUserType (OLE32.@)
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 *
 * This implementation of OleRegGetUserType ignores the dwFormOfType
 * parameter and always returns the full name of the object. This is
 * not too bad since this is the case for many objects because of the
 * way they are registered.
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 */
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HRESULT WINAPI OleRegGetUserType(
	REFCLSID clsid,
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	DWORD dwFormOfType,
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	LPOLESTR* pszUserType)
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{
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  char    keyName[60];
  DWORD   dwKeyType;
  DWORD   cbData;
  HKEY    clsidKey;
  LONG    hres;
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  LPSTR   buffer;
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  HRESULT retVal;
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  /*
   * Initialize the out parameter.
   */
  *pszUserType = NULL;

  /*
   * Build the key name we're looking for
   */
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  sprintf( keyName, "CLSID\\{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}\\",
           clsid->Data1, clsid->Data2, clsid->Data3,
           clsid->Data4[0], clsid->Data4[1], clsid->Data4[2], clsid->Data4[3],
           clsid->Data4[4], clsid->Data4[5], clsid->Data4[6], clsid->Data4[7] );
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  TRACE("(%s, %ld, %p)\n", keyName, dwFormOfType, pszUserType);
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  /*
   * Open the class id Key
   */
  hres = RegOpenKeyA(HKEY_CLASSES_ROOT,
		     keyName,
		     &clsidKey);

  if (hres != ERROR_SUCCESS)
    return REGDB_E_CLASSNOTREG;

  /*
   * Retrieve the size of the name string.
   */
  cbData = 0;

  hres = RegQueryValueExA(clsidKey,
			  "",
			  NULL,
			  &dwKeyType,
			  NULL,
			  &cbData);

  if (hres!=ERROR_SUCCESS)
  {
    RegCloseKey(clsidKey);
    return REGDB_E_READREGDB;
  }

  /*
   * Allocate a buffer for the registry value.
   */
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  *pszUserType = CoTaskMemAlloc(cbData*2);
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  if (*pszUserType==NULL)
  {
    RegCloseKey(clsidKey);
    return E_OUTOFMEMORY;
  }

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  buffer = HeapAlloc(GetProcessHeap(), 0, cbData);

  if (buffer == NULL)
  {
    RegCloseKey(clsidKey);
    CoTaskMemFree(*pszUserType);
    *pszUserType=NULL;
    return E_OUTOFMEMORY;
  }

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  hres = RegQueryValueExA(clsidKey,
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			  "",
			  NULL,
			  &dwKeyType,
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			  (LPBYTE) buffer,
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			  &cbData);

  RegCloseKey(clsidKey);
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  if (hres!=ERROR_SUCCESS)
  {
    CoTaskMemFree(*pszUserType);
    *pszUserType=NULL;

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    retVal = REGDB_E_READREGDB;
  }
  else
  {
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    MultiByteToWideChar( CP_ACP, 0, buffer, -1, *pszUserType, cbData /*FIXME*/ );
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    retVal = S_OK;
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  }
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  HeapFree(GetProcessHeap(), 0, buffer);
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  return retVal;
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}

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/***********************************************************************
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 * DoDragDrop [OLE32.@]
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 */
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HRESULT WINAPI DoDragDrop (
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  IDataObject *pDataObject,  /* [in] ptr to the data obj           */
  IDropSource* pDropSource,  /* [in] ptr to the source obj         */
  DWORD       dwOKEffect,    /* [in] effects allowed by the source */
  DWORD       *pdwEffect)    /* [out] ptr to effects of the source */
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{
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  TrackerWindowInfo trackerInfo;
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  HWND            hwndTrackWindow;
  MSG             msg;
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  TRACE("(DataObject %p, DropSource %p)\n", pDataObject, pDropSource);
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  /*
   * Setup the drag n drop tracking window.
   */
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  if (!IsValidInterface((LPUNKNOWN)pDropSource))
      return E_INVALIDARG;

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  trackerInfo.dataObject        = pDataObject;
  trackerInfo.dropSource        = pDropSource;
  trackerInfo.dwOKEffect        = dwOKEffect;
  trackerInfo.pdwEffect         = pdwEffect;
  trackerInfo.trackingDone      = FALSE;
  trackerInfo.escPressed        = FALSE;
  trackerInfo.curDragTargetHWND = 0;
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  trackerInfo.curTargetHWND     = 0;
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  trackerInfo.curDragTarget     = 0;

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  hwndTrackWindow = CreateWindowA(OLEDD_DRAGTRACKERCLASS,
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				    "TrackerWindow",
				    WS_POPUP,
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				    CW_USEDEFAULT, CW_USEDEFAULT,
				    CW_USEDEFAULT, CW_USEDEFAULT,
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				    0,
				    0,
				    0,
				    (LPVOID)&trackerInfo);

  if (hwndTrackWindow!=0)
  {
    /*
     * Capture the mouse input
     */
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    SetCapture(hwndTrackWindow);
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    /*
     * Pump messages. All mouse input should go the the capture window.
     */
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    while (!trackerInfo.trackingDone && GetMessageA(&msg, 0, 0, 0) )
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    {
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      if ( (msg.message >= WM_KEYFIRST) &&
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	   (msg.message <= WM_KEYLAST) )
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      {
	/*
	 * When keyboard messages are sent to windows on this thread, we
	 * want to ignore notify the drop source that the state changed.
	 * in the case of the Escape key, we also notify the drop source
	 * we give it a special meaning.
	 */
	if ( (msg.message==WM_KEYDOWN) &&
	     (msg.wParam==VK_ESCAPE) )
	{
	  trackerInfo.escPressed = TRUE;
	}

	/*
	 * Notify the drop source.
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	 */
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	OLEDD_TrackStateChange(&trackerInfo,
			       msg.pt,
			       OLEDD_GetButtonState());
      }
      else
      {
	/*
	 * Dispatch the messages only when it's not a keyboard message.
	 */
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	DispatchMessageA(&msg);
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      }
    }

    /*
     * Destroy the temporary window.
     */
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    DestroyWindow(hwndTrackWindow);
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    return trackerInfo.returnValue;
  }

  return E_FAIL;
}

/***********************************************************************
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 * OleQueryLinkFromData [OLE32.@]
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 */
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HRESULT WINAPI OleQueryLinkFromData(
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  IDataObject* pSrcDataObject)
{
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  FIXME("(%p),stub!\n", pSrcDataObject);
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  return S_OK;
}

/***********************************************************************
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 * OleRegGetMiscStatus [OLE32.@]
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 */
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HRESULT WINAPI OleRegGetMiscStatus(
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  REFCLSID clsid,
  DWORD    dwAspect,
  DWORD*   pdwStatus)
{
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  char    keyName[60];
  HKEY    clsidKey;
  HKEY    miscStatusKey;
  HKEY    aspectKey;
  LONG    result;

  /*
   * Initialize the out parameter.
   */
  *pdwStatus = 0;

  /*
   * Build the key name we're looking for
   */
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  sprintf( keyName, "CLSID\\{%08lx-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x}\\",
           clsid->Data1, clsid->Data2, clsid->Data3,
           clsid->Data4[0], clsid->Data4[1], clsid->Data4[2], clsid->Data4[3],
           clsid->Data4[4], clsid->Data4[5], clsid->Data4[6], clsid->Data4[7] );
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  TRACE("(%s, %ld, %p)\n", keyName, dwAspect, pdwStatus);
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  /*
   * Open the class id Key
   */
  result = RegOpenKeyA(HKEY_CLASSES_ROOT,
		       keyName,
		       &clsidKey);

  if (result != ERROR_SUCCESS)
    return REGDB_E_CLASSNOTREG;

  /*
   * Get the MiscStatus
   */
  result = RegOpenKeyA(clsidKey,
		       "MiscStatus",
		       &miscStatusKey);

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  if (result != ERROR_SUCCESS)
  {
    RegCloseKey(clsidKey);
    return REGDB_E_READREGDB;
  }

  /*
   * Read the default value
   */
  OLEUTL_ReadRegistryDWORDValue(miscStatusKey, pdwStatus);

  /*
   * Open the key specific to the requested aspect.
   */
  sprintf(keyName, "%ld", dwAspect);

  result = RegOpenKeyA(miscStatusKey,
		       keyName,
		       &aspectKey);
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  if (result == ERROR_SUCCESS)
  {
    OLEUTL_ReadRegistryDWORDValue(aspectKey, pdwStatus);
    RegCloseKey(aspectKey);
  }

  /*
   * Cleanup
   */
  RegCloseKey(miscStatusKey);
  RegCloseKey(clsidKey);

  return S_OK;
}

/******************************************************************************
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 *              OleSetContainedObject        [OLE32.@]
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 */
HRESULT WINAPI OleSetContainedObject(
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  LPUNKNOWN pUnknown,
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  BOOL      fContained)
{
  IRunnableObject* runnable = NULL;
  HRESULT          hres;

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  TRACE("(%p,%x), stub!\n", pUnknown, fContained);
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  hres = IUnknown_QueryInterface(pUnknown,
				 &IID_IRunnableObject,
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				 (void**)&runnable);
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  if (SUCCEEDED(hres))
  {
    hres = IRunnableObject_SetContainedObject(runnable, fContained);

    IRunnableObject_Release(runnable);

    return hres;
  }

  return S_OK;
}

/******************************************************************************
706
 *              OleLoad        [OLE32.@]
707 708
 */
HRESULT WINAPI OleLoad(
709 710 711
  LPSTORAGE       pStg,
  REFIID          riid,
  LPOLECLIENTSITE pClientSite,
712 713 714 715 716 717 718
  LPVOID*         ppvObj)
{
  IPersistStorage* persistStorage = NULL;
  IOleObject*      oleObject      = NULL;
  STATSTG          storageInfo;
  HRESULT          hres;

719
  TRACE("(%p,%p,%p,%p)\n", pStg, riid, pClientSite, ppvObj);
720

721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736
  /*
   * TODO, Conversion ... OleDoAutoConvert
   */

  /*
   * Get the class ID for the object.
   */
  hres = IStorage_Stat(pStg, &storageInfo, STATFLAG_NONAME);

  /*
   * Now, try and create the handler for the object
   */
  hres = CoCreateInstance(&storageInfo.clsid,
			  NULL,
			  CLSCTX_INPROC_HANDLER,
			  &IID_IOleObject,
737
			  (void**)&oleObject);
738 739 740 741 742 743 744 745 746 747

  /*
   * If that fails, as it will most times, load the default
   * OLE handler.
   */
  if (FAILED(hres))
  {
    hres = OleCreateDefaultHandler(&storageInfo.clsid,
				   NULL,
				   &IID_IOleObject,
748
				   (void**)&oleObject);
749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766
  }

  /*
   * If we couldn't find a handler... this is bad. Abort the whole thing.
   */
  if (FAILED(hres))
    return hres;

  /*
   * Inform the new object of it's client site.
   */
  hres = IOleObject_SetClientSite(oleObject, pClientSite);

  /*
   * Initialize the object with it's IPersistStorage interface.
   */
  hres = IOleObject_QueryInterface(oleObject,
				   &IID_IPersistStorage,
767
				   (void**)&persistStorage);
768

769
  if (SUCCEEDED(hres))
770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787
  {
    IPersistStorage_Load(persistStorage, pStg);

    IPersistStorage_Release(persistStorage);
    persistStorage = NULL;
  }

  /*
   * Return the requested interface to the caller.
   */
  hres = IOleObject_QueryInterface(oleObject, riid, ppvObj);

  /*
   * Cleanup interfaces used internally
   */
  IOleObject_Release(oleObject);

  return hres;
788 789
}

790
/***********************************************************************
791
 *           OleSave     [OLE32.@]
792 793 794 795 796 797 798 799 800
 */
HRESULT WINAPI OleSave(
  LPPERSISTSTORAGE pPS,
  LPSTORAGE        pStg,
  BOOL             fSameAsLoad)
{
  HRESULT hres;
  CLSID   objectClass;

801
  TRACE("(%p,%p,%x)\n", pPS, pStg, fSameAsLoad);
802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823

  /*
   * First, we transfer the class ID (if available)
   */
  hres = IPersistStorage_GetClassID(pPS, &objectClass);

  if (SUCCEEDED(hres))
  {
    WriteClassStg(pStg, &objectClass);
  }

  /*
   * Then, we ask the object to save itself to the
   * storage. If it is successful, we commit the storage.
   */
  hres = IPersistStorage_Save(pPS, pStg, fSameAsLoad);

  if (SUCCEEDED(hres))
  {
    IStorage_Commit(pStg,
		    STGC_DEFAULT);
  }
824

825 826 827 828
  return hres;
}


829
/******************************************************************************
830
 *              OleLockRunning        [OLE32.@]
831
 */
832
HRESULT WINAPI OleLockRunning(LPUNKNOWN pUnknown, BOOL fLock, BOOL fLastUnlockCloses)
833 834 835 836 837 838 839 840
{
  IRunnableObject* runnable = NULL;
  HRESULT          hres;

  TRACE("(%p,%x,%x)\n", pUnknown, fLock, fLastUnlockCloses);

  hres = IUnknown_QueryInterface(pUnknown,
				 &IID_IRunnableObject,
841
				 (void**)&runnable);
842 843 844 845 846 847 848 849 850 851 852 853 854 855

  if (SUCCEEDED(hres))
  {
    hres = IRunnableObject_LockRunning(runnable, fLock, fLastUnlockCloses);

    IRunnableObject_Release(runnable);

    return hres;
  }
  else
    return E_INVALIDARG;
}


856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882
/**************************************************************************
 * Internal methods to manage the shared OLE menu in response to the
 * OLE***MenuDescriptor API
 */

/***
 * OLEMenu_Initialize()
 *
 * Initializes the OLEMENU data structures.
 */
static void OLEMenu_Initialize()
{
}

/***
 * OLEMenu_UnInitialize()
 *
 * Releases the OLEMENU data structures.
 */
static void OLEMenu_UnInitialize()
{
}

/*************************************************************************
 * OLEMenu_InstallHooks
 * Install thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC
 *
883
 * RETURNS: TRUE if message hooks were successfully installed
884 885 886 887 888 889 890 891 892 893 894 895 896
 *          FALSE on failure
 */
BOOL OLEMenu_InstallHooks( DWORD tid )
{
  OleMenuHookItem *pHookItem = NULL;

  /* Create an entry for the hook table */
  if ( !(pHookItem = HeapAlloc(GetProcessHeap(), 0,
                               sizeof(OleMenuHookItem)) ) )
    return FALSE;

  pHookItem->tid = tid;
  pHookItem->hHeap = GetProcessHeap();
897

898 899 900 901 902 903 904 905 906 907 908 909 910
  /* Install a thread scope message hook for WH_GETMESSAGE */
  pHookItem->GetMsg_hHook = SetWindowsHookExA( WH_GETMESSAGE, OLEMenu_GetMsgProc,
                                               0, GetCurrentThreadId() );
  if ( !pHookItem->GetMsg_hHook )
    goto CLEANUP;

  /* Install a thread scope message hook for WH_CALLWNDPROC */
  pHookItem->CallWndProc_hHook = SetWindowsHookExA( WH_CALLWNDPROC, OLEMenu_CallWndProc,
                                                    0, GetCurrentThreadId() );
  if ( !pHookItem->CallWndProc_hHook )
    goto CLEANUP;

  /* Insert the hook table entry */
911 912
  pHookItem->next = hook_list;
  hook_list = pHookItem;
913

914
  return TRUE;
915

916 917 918 919 920 921 922 923
CLEANUP:
  /* Unhook any hooks */
  if ( pHookItem->GetMsg_hHook )
    UnhookWindowsHookEx( pHookItem->GetMsg_hHook );
  if ( pHookItem->CallWndProc_hHook )
    UnhookWindowsHookEx( pHookItem->CallWndProc_hHook );
  /* Release the hook table entry */
  HeapFree(pHookItem->hHeap, 0, pHookItem );
924

925 926 927 928 929 930 931
  return FALSE;
}

/*************************************************************************
 * OLEMenu_UnInstallHooks
 * UnInstall thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC
 *
932
 * RETURNS: TRUE if message hooks were successfully installed
933 934 935 936 937
 *          FALSE on failure
 */
BOOL OLEMenu_UnInstallHooks( DWORD tid )
{
  OleMenuHookItem *pHookItem = NULL;
938
  OleMenuHookItem **ppHook = &hook_list;
939

940 941 942 943 944 945 946 947 948 949 950
  while (*ppHook)
  {
      if ((*ppHook)->tid == tid)
      {
          pHookItem = *ppHook;
          *ppHook = pHookItem->next;
          break;
      }
      ppHook = &(*ppHook)->next;
  }
  if (!pHookItem) return FALSE;
951 952 953 954 955 956 957 958 959 960 961 962 963 964

  /* Uninstall the hooks installed for this thread */
  if ( !UnhookWindowsHookEx( pHookItem->GetMsg_hHook ) )
    goto CLEANUP;
  if ( !UnhookWindowsHookEx( pHookItem->CallWndProc_hHook ) )
    goto CLEANUP;

  /* Release the hook table entry */
  HeapFree(pHookItem->hHeap, 0, pHookItem );

  return TRUE;

CLEANUP:
  /* Release the hook table entry */
965
  HeapFree(pHookItem->hHeap, 0, pHookItem );
966 967 968 969 970 971 972 973 974 975 976

  return FALSE;
}

/*************************************************************************
 * OLEMenu_IsHookInstalled
 * Tests if OLEMenu hooks have been installed for a thread
 *
 * RETURNS: The pointer and index of the hook table entry for the tid
 *          NULL and -1 for the index if no hooks were installed for this thread
 */
977
OleMenuHookItem * OLEMenu_IsHookInstalled( DWORD tid )
978 979 980 981 982
{
  OleMenuHookItem *pHookItem = NULL;

  /* Do a simple linear search for an entry whose tid matches ours.
   * We really need a map but efficiency is not a concern here. */
983
  for (pHookItem = hook_list; pHookItem; pHookItem = pHookItem->next)
984 985 986 987
  {
    if ( tid == pHookItem->tid )
      return pHookItem;
  }
988

989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008
  return NULL;
}

/***********************************************************************
 *           OLEMenu_FindMainMenuIndex
 *
 * Used by OLEMenu API to find the top level group a menu item belongs to.
 * On success pnPos contains the index of the item in the top level menu group
 *
 * RETURNS: TRUE if the ID was found, FALSE on failure
 */
static BOOL OLEMenu_FindMainMenuIndex( HMENU hMainMenu, HMENU hPopupMenu, UINT *pnPos )
{
  UINT i, nItems;

  nItems = GetMenuItemCount( hMainMenu );

  for (i = 0; i < nItems; i++)
  {
    HMENU hsubmenu;
1009

1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040
    /*  Is the current item a submenu? */
    if ( (hsubmenu = GetSubMenu(hMainMenu, i)) )
    {
      /* If the handle is the same we're done */
      if ( hsubmenu == hPopupMenu )
      {
        if (pnPos)
          *pnPos = i;
        return TRUE;
      }
      /* Recursively search without updating pnPos */
      else if ( OLEMenu_FindMainMenuIndex( hsubmenu, hPopupMenu, NULL ) )
      {
        if (pnPos)
          *pnPos = i;
        return TRUE;
      }
    }
  }

  return FALSE;
}

/***********************************************************************
 *           OLEMenu_SetIsServerMenu
 *
 * Checks whether a popup menu belongs to a shared menu group which is
 * owned by the server, and sets the menu descriptor state accordingly.
 * All menu messages from these groups should be routed to the server.
 *
 * RETURNS: TRUE if the popup menu is part of a server owned group
1041
 *          FALSE if the popup menu is part of a container owned group
1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055
 */
BOOL OLEMenu_SetIsServerMenu( HMENU hmenu, OleMenuDescriptor *pOleMenuDescriptor )
{
  UINT nPos = 0, nWidth, i;

  pOleMenuDescriptor->bIsServerItem = FALSE;

  /* Don't bother searching if the popup is the combined menu itself */
  if ( hmenu == pOleMenuDescriptor->hmenuCombined )
    return FALSE;

  /* Find the menu item index in the shared OLE menu that this item belongs to */
  if ( !OLEMenu_FindMainMenuIndex( pOleMenuDescriptor->hmenuCombined, hmenu,  &nPos ) )
    return FALSE;
1056

1057 1058 1059 1060
  /* The group widths array has counts for the number of elements
   * in the groups File, Edit, Container, Object, Window, Help.
   * The Edit, Object & Help groups belong to the server object
   * and the other three belong to the container.
1061
   * Loop through the group widths and locate the group we are a member of.
1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088
   */
  for ( i = 0, nWidth = 0; i < 6; i++ )
  {
    nWidth += pOleMenuDescriptor->mgw.width[i];
    if ( nPos < nWidth )
    {
      /* Odd elements are server menu widths */
      pOleMenuDescriptor->bIsServerItem = (i%2) ? TRUE : FALSE;
      break;
    }
  }

  return pOleMenuDescriptor->bIsServerItem;
}

/*************************************************************************
 * OLEMenu_CallWndProc
 * Thread scope WH_CALLWNDPROC hook proc filter function (callback)
 * This is invoked from a message hook installed in OleSetMenuDescriptor.
 */
LRESULT CALLBACK OLEMenu_CallWndProc(INT code, WPARAM wParam, LPARAM lParam)
{
  LPCWPSTRUCT pMsg = NULL;
  HOLEMENU hOleMenu = 0;
  OleMenuDescriptor *pOleMenuDescriptor = NULL;
  OleMenuHookItem *pHookItem = NULL;
  WORD fuFlags;
1089

1090
  TRACE("%i, %04x, %08x\n", code, wParam, (unsigned)lParam );
1091 1092 1093 1094

  /* Check if we're being asked to process the message */
  if ( HC_ACTION != code )
    goto NEXTHOOK;
1095

1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124
  /* Retrieve the current message being dispatched from lParam */
  pMsg = (LPCWPSTRUCT)lParam;

  /* Check if the message is destined for a window we are interested in:
   * If the window has an OLEMenu property we may need to dispatch
   * the menu message to its active objects window instead. */

  hOleMenu = (HOLEMENU)GetPropA( pMsg->hwnd, "PROP_OLEMenuDescriptor" );
  if ( !hOleMenu )
    goto NEXTHOOK;

  /* Get the menu descriptor */
  pOleMenuDescriptor = (OleMenuDescriptor *) GlobalLock( hOleMenu );
  if ( !pOleMenuDescriptor ) /* Bad descriptor! */
    goto NEXTHOOK;

  /* Process menu messages */
  switch( pMsg->message )
  {
    case WM_INITMENU:
    {
      /* Reset the menu descriptor state */
      pOleMenuDescriptor->bIsServerItem = FALSE;

      /* Send this message to the server as well */
      SendMessageA( pOleMenuDescriptor->hwndActiveObject,
                  pMsg->message, pMsg->wParam, pMsg->lParam );
      goto NEXTHOOK;
    }
1125

1126 1127 1128 1129 1130 1131
    case WM_INITMENUPOPUP:
    {
      /* Save the state for whether this is a server owned menu */
      OLEMenu_SetIsServerMenu( (HMENU)pMsg->wParam, pOleMenuDescriptor );
      break;
    }
1132

1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144
    case WM_MENUSELECT:
    {
      fuFlags = HIWORD(pMsg->wParam);  /* Get flags */
      if ( fuFlags & MF_SYSMENU )
         goto NEXTHOOK;

      /* Save the state for whether this is a server owned popup menu */
      else if ( fuFlags & MF_POPUP )
        OLEMenu_SetIsServerMenu( (HMENU)pMsg->lParam, pOleMenuDescriptor );

      break;
    }
1145

1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164
    case WM_DRAWITEM:
    {
      LPDRAWITEMSTRUCT lpdis = (LPDRAWITEMSTRUCT) pMsg->lParam;
      if ( pMsg->wParam != 0 || lpdis->CtlType != ODT_MENU )
        goto NEXTHOOK;  /* Not a menu message */

      break;
    }

    default:
      goto NEXTHOOK;
  }

  /* If the message was for the server dispatch it accordingly */
  if ( pOleMenuDescriptor->bIsServerItem )
  {
    SendMessageA( pOleMenuDescriptor->hwndActiveObject,
                  pMsg->message, pMsg->wParam, pMsg->lParam );
  }
1165

1166 1167 1168
NEXTHOOK:
  if ( pOleMenuDescriptor )
    GlobalUnlock( hOleMenu );
1169

1170
  /* Lookup the hook item for the current thread */
1171
  if ( !( pHookItem = OLEMenu_IsHookInstalled( GetCurrentThreadId() ) ) )
1172 1173
  {
    /* This should never fail!! */
1174
    WARN("could not retrieve hHook for current thread!\n" );
1175 1176
    return 0;
  }
1177

1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193
  /* Pass on the message to the next hooker */
  return CallNextHookEx( pHookItem->CallWndProc_hHook, code, wParam, lParam );
}

/*************************************************************************
 * OLEMenu_GetMsgProc
 * Thread scope WH_GETMESSAGE hook proc filter function (callback)
 * This is invoked from a message hook installed in OleSetMenuDescriptor.
 */
LRESULT CALLBACK OLEMenu_GetMsgProc(INT code, WPARAM wParam, LPARAM lParam)
{
  LPMSG pMsg = NULL;
  HOLEMENU hOleMenu = 0;
  OleMenuDescriptor *pOleMenuDescriptor = NULL;
  OleMenuHookItem *pHookItem = NULL;
  WORD wCode;
1194

1195
  TRACE("%i, %04x, %08x\n", code, wParam, (unsigned)lParam );
1196 1197 1198 1199

  /* Check if we're being asked to process a  messages */
  if ( HC_ACTION != code )
    goto NEXTHOOK;
1200

1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238
  /* Retrieve the current message being dispatched from lParam */
  pMsg = (LPMSG)lParam;

  /* Check if the message is destined for a window we are interested in:
   * If the window has an OLEMenu property we may need to dispatch
   * the menu message to its active objects window instead. */

  hOleMenu = (HOLEMENU)GetPropA( pMsg->hwnd, "PROP_OLEMenuDescriptor" );
  if ( !hOleMenu )
    goto NEXTHOOK;

  /* Process menu messages */
  switch( pMsg->message )
  {
    case WM_COMMAND:
    {
      wCode = HIWORD(pMsg->wParam);  /* Get notification code */
      if ( wCode )
        goto NEXTHOOK;  /* Not a menu message */
      break;
    }
    default:
      goto NEXTHOOK;
  }

  /* Get the menu descriptor */
  pOleMenuDescriptor = (OleMenuDescriptor *) GlobalLock( hOleMenu );
  if ( !pOleMenuDescriptor ) /* Bad descriptor! */
    goto NEXTHOOK;

  /* If the message was for the server dispatch it accordingly */
  if ( pOleMenuDescriptor->bIsServerItem )
  {
    /* Change the hWnd in the message to the active objects hWnd.
     * The message loop which reads this message will automatically
     * dispatch it to the embedded objects window. */
    pMsg->hwnd = pOleMenuDescriptor->hwndActiveObject;
  }
1239

1240 1241 1242
NEXTHOOK:
  if ( pOleMenuDescriptor )
    GlobalUnlock( hOleMenu );
1243

1244
  /* Lookup the hook item for the current thread */
1245
  if ( !( pHookItem = OLEMenu_IsHookInstalled( GetCurrentThreadId() ) ) )
1246 1247
  {
    /* This should never fail!! */
1248
    WARN("could not retrieve hHook for current thread!\n" );
1249 1250
    return FALSE;
  }
1251

1252 1253 1254 1255
  /* Pass on the message to the next hooker */
  return CallNextHookEx( pHookItem->GetMsg_hHook, code, wParam, lParam );
}

1256
/***********************************************************************
1257
 * OleCreateMenuDescriptor [OLE32.@]
1258 1259 1260 1261 1262 1263 1264
 * Creates an OLE menu descriptor for OLE to use when dispatching
 * menu messages and commands.
 *
 * PARAMS:
 *    hmenuCombined  -  Handle to the objects combined menu
 *    lpMenuWidths   -  Pointer to array of 6 LONG's indicating menus per group
 *
1265
 */
1266 1267 1268
HOLEMENU WINAPI OleCreateMenuDescriptor(
  HMENU                hmenuCombined,
  LPOLEMENUGROUPWIDTHS lpMenuWidths)
1269
{
1270 1271 1272 1273 1274 1275
  HOLEMENU hOleMenu;
  OleMenuDescriptor *pOleMenuDescriptor;
  int i;

  if ( !hmenuCombined || !lpMenuWidths )
    return 0;
1276

1277 1278 1279
  /* Create an OLE menu descriptor */
  if ( !(hOleMenu = GlobalAlloc(GMEM_MOVEABLE | GMEM_ZEROINIT,
                                sizeof(OleMenuDescriptor) ) ) )
1280
  return 0;
1281 1282 1283 1284 1285 1286 1287 1288

  pOleMenuDescriptor = (OleMenuDescriptor *) GlobalLock( hOleMenu );
  if ( !pOleMenuDescriptor )
    return 0;

  /* Initialize menu group widths and hmenu */
  for ( i = 0; i < 6; i++ )
    pOleMenuDescriptor->mgw.width[i] = lpMenuWidths->width[i];
1289

1290 1291 1292
  pOleMenuDescriptor->hmenuCombined = hmenuCombined;
  pOleMenuDescriptor->bIsServerItem = FALSE;
  GlobalUnlock( hOleMenu );
1293

1294
  return hOleMenu;
1295 1296 1297
}

/***********************************************************************
1298
 * OleDestroyMenuDescriptor [OLE32.@]
1299
 * Destroy the shared menu descriptor
1300
 */
1301
HRESULT WINAPI OleDestroyMenuDescriptor(
1302
  HOLEMENU hmenuDescriptor)
1303
{
1304 1305
  if ( hmenuDescriptor )
    GlobalFree( hmenuDescriptor );
1306
	return S_OK;
1307 1308 1309
}

/***********************************************************************
1310
 * OleSetMenuDescriptor [OLE32.@]
1311 1312 1313 1314
 * Installs or removes OLE dispatching code for the containers frame window
 * FIXME: The lpFrame and lpActiveObject parameters are currently ignored
 * OLE should install context sensitive help F1 filtering for the app when
 * these are non null.
1315
 *
1316 1317 1318 1319 1320 1321 1322 1323 1324 1325
 * PARAMS:
 *     hOleMenu         Handle to composite menu descriptor
 *     hwndFrame        Handle to containers frame window
 *     hwndActiveObject Handle to objects in-place activation window
 *     lpFrame          Pointer to IOleInPlaceFrame on containers window
 *     lpActiveObject   Pointer to IOleInPlaceActiveObject on active in-place object
 *
 * RETURNS:
 *      S_OK                               - menu installed correctly
 *      E_FAIL, E_INVALIDARG, E_UNEXPECTED - failure
1326 1327
 */
HRESULT WINAPI OleSetMenuDescriptor(
1328
  HOLEMENU               hOleMenu,
1329 1330
  HWND                   hwndFrame,
  HWND                   hwndActiveObject,
1331 1332 1333
  LPOLEINPLACEFRAME        lpFrame,
  LPOLEINPLACEACTIVEOBJECT lpActiveObject)
{
1334 1335 1336 1337 1338 1339 1340 1341
  OleMenuDescriptor *pOleMenuDescriptor = NULL;

  /* Check args */
  if ( !hwndFrame || (hOleMenu && !hwndActiveObject) )
    return E_INVALIDARG;

  if ( lpFrame || lpActiveObject )
  {
1342 1343
     FIXME("(%p, %p, %p, %p, %p), Context sensitive help filtering not implemented!\n",
	hOleMenu,
1344 1345 1346 1347
	hwndFrame,
	hwndActiveObject,
	lpFrame,
	lpActiveObject);
1348 1349 1350 1351 1352 1353
  }

  /* Set up a message hook to intercept the containers frame window messages.
   * The message filter is responsible for dispatching menu messages from the
   * shared menu which are intended for the object.
   */
1354

1355 1356 1357 1358 1359 1360
  if ( hOleMenu )  /* Want to install dispatching code */
  {
    /* If OLEMenu hooks are already installed for this thread, fail
     * Note: This effectively means that OleSetMenuDescriptor cannot
     * be called twice in succession on the same frame window
     * without first calling it with a null hOleMenu to uninstall */
1361
    if ( OLEMenu_IsHookInstalled( GetCurrentThreadId() ) )
1362
  return E_FAIL;
1363

1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374
    /* Get the menu descriptor */
    pOleMenuDescriptor = (OleMenuDescriptor *) GlobalLock( hOleMenu );
    if ( !pOleMenuDescriptor )
      return E_UNEXPECTED;

    /* Update the menu descriptor */
    pOleMenuDescriptor->hwndFrame = hwndFrame;
    pOleMenuDescriptor->hwndActiveObject = hwndActiveObject;

    GlobalUnlock( hOleMenu );
    pOleMenuDescriptor = NULL;
1375

1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387
    /* Add a menu descriptor windows property to the frame window */
    SetPropA( hwndFrame, "PROP_OLEMenuDescriptor", hOleMenu );

    /* Install thread scope message hooks for WH_GETMESSAGE and WH_CALLWNDPROC */
    if ( !OLEMenu_InstallHooks( GetCurrentThreadId() ) )
      return E_FAIL;
  }
  else  /* Want to uninstall dispatching code */
  {
    /* Uninstall the hooks */
    if ( !OLEMenu_UnInstallHooks( GetCurrentThreadId() ) )
      return E_FAIL;
1388

1389 1390 1391
    /* Remove the menu descriptor property from the frame window */
    RemovePropA( hwndFrame, "PROP_OLEMenuDescriptor" );
  }
1392

1393
  return S_OK;
1394 1395
}

1396
/******************************************************************************
1397
 *              IsAccelerator        [OLE32.@]
1398 1399 1400 1401
 * Mostly copied from controls/menu.c TranslateAccelerator implementation
 */
BOOL WINAPI IsAccelerator(HACCEL hAccel, int cAccelEntries, LPMSG lpMsg, WORD* lpwCmd)
{
1402
    LPACCEL lpAccelTbl;
1403 1404 1405
    int i;

    if(!lpMsg) return FALSE;
1406
    if (!hAccel)
1407
    {
1408
	WARN_(accel)("NULL accel handle\n");
1409 1410 1411 1412 1413 1414 1415
	return FALSE;
    }
    if((lpMsg->message != WM_KEYDOWN &&
	lpMsg->message != WM_KEYUP &&
	lpMsg->message != WM_SYSKEYDOWN &&
	lpMsg->message != WM_SYSKEYUP &&
	lpMsg->message != WM_CHAR)) return FALSE;
1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426
    lpAccelTbl = HeapAlloc(GetProcessHeap(), 0, cAccelEntries * sizeof(ACCEL));
    if (NULL == lpAccelTbl)
    {
	return FALSE;
    }
    if (CopyAcceleratorTableW(hAccel, lpAccelTbl, cAccelEntries) != cAccelEntries)
    {
	WARN_(accel)("CopyAcceleratorTableW failed\n");
	HeapFree(GetProcessHeap(), 0, lpAccelTbl);
	return FALSE;
    }
1427

1428 1429
    TRACE_(accel)("hAccel=%p, cAccelEntries=%d,"
		"msg->hwnd=%p, msg->message=%04x, wParam=%08x, lParam=%08lx\n",
1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469
		hAccel, cAccelEntries,
		lpMsg->hwnd, lpMsg->message, lpMsg->wParam, lpMsg->lParam);
    for(i = 0; i < cAccelEntries; i++)
    {
	if(lpAccelTbl[i].key != lpMsg->wParam)
	    continue;

	if(lpMsg->message == WM_CHAR)
	{
	    if(!(lpAccelTbl[i].fVirt & FALT) && !(lpAccelTbl[i].fVirt & FVIRTKEY))
	    {
		TRACE_(accel)("found accel for WM_CHAR: ('%c')\n", lpMsg->wParam & 0xff);
		goto found;
	    }
	}
	else
	{
	    if(lpAccelTbl[i].fVirt & FVIRTKEY)
	    {
		INT mask = 0;
		TRACE_(accel)("found accel for virt_key %04x (scan %04x)\n",
				lpMsg->wParam, HIWORD(lpMsg->lParam) & 0xff);
		if(GetKeyState(VK_SHIFT) & 0x8000) mask |= FSHIFT;
		if(GetKeyState(VK_CONTROL) & 0x8000) mask |= FCONTROL;
		if(GetKeyState(VK_MENU) & 0x8000) mask |= FALT;
		if(mask == (lpAccelTbl[i].fVirt & (FSHIFT | FCONTROL | FALT))) goto found;
		TRACE_(accel)("incorrect SHIFT/CTRL/ALT-state\n");
	    }
	    else
	    {
		if(!(lpMsg->lParam & 0x01000000))  /* no special_key */
		{
		    if((lpAccelTbl[i].fVirt & FALT) && (lpMsg->lParam & 0x20000000))
		    {						       /* ^^ ALT pressed */
			TRACE_(accel)("found accel for Alt-%c\n", lpMsg->wParam & 0xff);
			goto found;
		    }
		}
	    }
	}
1470
    }
1471 1472

    WARN_(accel)("couldn't translate accelerator key\n");
1473
    HeapFree(GetProcessHeap(), 0, lpAccelTbl);
1474 1475 1476 1477
    return FALSE;

found:
    if(lpwCmd) *lpwCmd = lpAccelTbl[i].cmd;
1478
    HeapFree(GetProcessHeap(), 0, lpAccelTbl);
1479 1480 1481
    return TRUE;
}

1482
/***********************************************************************
1483
 * ReleaseStgMedium [OLE32.@]
1484 1485 1486 1487 1488 1489 1490 1491
 */
void WINAPI ReleaseStgMedium(
  STGMEDIUM* pmedium)
{
  switch (pmedium->tymed)
  {
    case TYMED_HGLOBAL:
    {
1492
      if ( (pmedium->pUnkForRelease==0) &&
1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504
	   (pmedium->u.hGlobal!=0) )
	GlobalFree(pmedium->u.hGlobal);
      break;
    }
    case TYMED_FILE:
    {
      if (pmedium->u.lpszFileName!=0)
      {
	if (pmedium->pUnkForRelease==0)
	{
	  DeleteFileW(pmedium->u.lpszFileName);
	}
1505

1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527
	CoTaskMemFree(pmedium->u.lpszFileName);
      }
      break;
    }
    case TYMED_ISTREAM:
    {
      if (pmedium->u.pstm!=0)
      {
	IStream_Release(pmedium->u.pstm);
      }
      break;
    }
    case TYMED_ISTORAGE:
    {
      if (pmedium->u.pstg!=0)
      {
	IStorage_Release(pmedium->u.pstg);
      }
      break;
    }
    case TYMED_GDI:
    {
1528
      if ( (pmedium->pUnkForRelease==0) &&
1529 1530
	   (pmedium->u.hBitmap!=0) )
	DeleteObject(pmedium->u.hBitmap);
1531 1532 1533 1534
      break;
    }
    case TYMED_MFPICT:
    {
1535
      if ( (pmedium->pUnkForRelease==0) &&
1536 1537
	   (pmedium->u.hMetaFilePict!=0) )
      {
1538
	LPMETAFILEPICT pMP = GlobalLock(pmedium->u.hMetaFilePict);
1539
	DeleteMetaFile(pMP->hMF);
1540 1541
	GlobalUnlock(pmedium->u.hMetaFilePict);
	GlobalFree(pmedium->u.hMetaFilePict);
1542 1543 1544 1545 1546
      }
      break;
    }
    case TYMED_ENHMF:
    {
1547
      if ( (pmedium->pUnkForRelease==0) &&
1548 1549 1550 1551 1552 1553 1554 1555 1556 1557
	   (pmedium->u.hEnhMetaFile!=0) )
      {
	DeleteEnhMetaFile(pmedium->u.hEnhMetaFile);
      }
      break;
    }
    case TYMED_NULL:
    default:
      break;
  }
1558
  pmedium->tymed=TYMED_NULL;
1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569

  /*
   * After cleaning up, the unknown is released
   */
  if (pmedium->pUnkForRelease!=0)
  {
    IUnknown_Release(pmedium->pUnkForRelease);
    pmedium->pUnkForRelease = 0;
  }
}

1570 1571 1572 1573 1574 1575 1576
/***
 * OLEDD_Initialize()
 *
 * Initializes the OLE drag and drop data structures.
 */
static void OLEDD_Initialize()
{
1577
    WNDCLASSA wndClass;
1578

1579
    ZeroMemory (&wndClass, sizeof(WNDCLASSA));
1580
    wndClass.style         = CS_GLOBALCLASS;
1581
    wndClass.lpfnWndProc   = OLEDD_DragTrackerWindowProc;
1582 1583 1584 1585 1586
    wndClass.cbClsExtra    = 0;
    wndClass.cbWndExtra    = sizeof(TrackerWindowInfo*);
    wndClass.hCursor       = 0;
    wndClass.hbrBackground = 0;
    wndClass.lpszClassName = OLEDD_DRAGTRACKERCLASS;
1587

1588
    RegisterClassA (&wndClass);
1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602
}

/***
 * OLEDD_UnInitialize()
 *
 * Releases the OLE drag and drop data structures.
 */
static void OLEDD_UnInitialize()
{
  /*
   * Simply empty the list.
   */
  while (targetListHead!=NULL)
  {
1603
    RevokeDragDrop(targetListHead->hwndTarget);
1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652
  }
}

/***
 * OLEDD_InsertDropTarget()
 *
 * Insert the target node in the tree.
 */
static void OLEDD_InsertDropTarget(DropTargetNode* nodeToAdd)
{
  DropTargetNode*  curNode;
  DropTargetNode** parentNodeLink;

  /*
   * Iterate the tree to find the insertion point.
   */
  curNode        = targetListHead;
  parentNodeLink = &targetListHead;

  while (curNode!=NULL)
  {
    if (nodeToAdd->hwndTarget<curNode->hwndTarget)
    {
      /*
       * If the node we want to add has a smaller HWND, go left
       */
      parentNodeLink = &curNode->prevDropTarget;
      curNode        =  curNode->prevDropTarget;
    }
    else if (nodeToAdd->hwndTarget>curNode->hwndTarget)
    {
      /*
       * If the node we want to add has a larger HWND, go right
       */
      parentNodeLink = &curNode->nextDropTarget;
      curNode        =  curNode->nextDropTarget;
    }
    else
    {
      /*
       * The item was found in the list. It shouldn't have been there
       */
      assert(FALSE);
      return;
    }
  }

  /*
   * If we get here, we have found a spot for our item. The parentNodeLink
1653
   * pointer points to the pointer that we have to modify.
1654 1655 1656 1657 1658 1659 1660
   * The curNode should be NULL. We just have to establish the link and Voila!
   */
  assert(curNode==NULL);
  assert(parentNodeLink!=NULL);
  assert(*parentNodeLink==NULL);

  *parentNodeLink=nodeToAdd;
1661
}
1662 1663 1664 1665 1666 1667

/***
 * OLEDD_ExtractDropTarget()
 *
 * Removes the target node from the tree.
 */
1668
static DropTargetNode* OLEDD_ExtractDropTarget(HWND hwndOfTarget)
1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699
{
  DropTargetNode*  curNode;
  DropTargetNode** parentNodeLink;

  /*
   * Iterate the tree to find the insertion point.
   */
  curNode        = targetListHead;
  parentNodeLink = &targetListHead;

  while (curNode!=NULL)
  {
    if (hwndOfTarget<curNode->hwndTarget)
    {
      /*
       * If the node we want to add has a smaller HWND, go left
       */
      parentNodeLink = &curNode->prevDropTarget;
      curNode        =  curNode->prevDropTarget;
    }
    else if (hwndOfTarget>curNode->hwndTarget)
    {
      /*
       * If the node we want to add has a larger HWND, go right
       */
      parentNodeLink = &curNode->nextDropTarget;
      curNode        =  curNode->nextDropTarget;
    }
    else
    {
      /*
1700
       * The item was found in the list. Detach it from it's parent and
1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740
       * re-insert it's kids in the tree.
       */
      assert(parentNodeLink!=NULL);
      assert(*parentNodeLink==curNode);

      /*
       * We arbitrately re-attach the left sub-tree to the parent.
       */
      *parentNodeLink = curNode->prevDropTarget;

      /*
       * And we re-insert the right subtree
       */
      if (curNode->nextDropTarget!=NULL)
      {
	OLEDD_InsertDropTarget(curNode->nextDropTarget);
      }

      /*
       * The node we found is still a valid node once we complete
       * the unlinking of the kids.
       */
      curNode->nextDropTarget=NULL;
      curNode->prevDropTarget=NULL;

      return curNode;
    }
  }

  /*
   * If we get here, the node is not in the tree
   */
  return NULL;
}

/***
 * OLEDD_FindDropTarget()
 *
 * Finds information about the drop target.
 */
1741
static DropTargetNode* OLEDD_FindDropTarget(HWND hwndOfTarget)
1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789
{
  DropTargetNode*  curNode;

  /*
   * Iterate the tree to find the HWND value.
   */
  curNode        = targetListHead;

  while (curNode!=NULL)
  {
    if (hwndOfTarget<curNode->hwndTarget)
    {
      /*
       * If the node we want to add has a smaller HWND, go left
       */
      curNode =  curNode->prevDropTarget;
    }
    else if (hwndOfTarget>curNode->hwndTarget)
    {
      /*
       * If the node we want to add has a larger HWND, go right
       */
      curNode =  curNode->nextDropTarget;
    }
    else
    {
      /*
       * The item was found in the list.
       */
      return curNode;
    }
  }

  /*
   * If we get here, the item is not in the list
   */
  return NULL;
}

/***
 * OLEDD_DragTrackerWindowProc()
 *
 * This method is the WindowProcedure of the drag n drop tracking
 * window. During a drag n Drop operation, an invisible window is created
 * to receive the user input and act upon it. This procedure is in charge
 * of this behavior.
 */
static LRESULT WINAPI OLEDD_DragTrackerWindowProc(
1790
			 HWND   hwnd,
1791
			 UINT   uMsg,
1792
			 WPARAM wParam,
1793 1794 1795 1796 1797 1798
			 LPARAM   lParam)
{
  switch (uMsg)
  {
    case WM_CREATE:
    {
1799
      LPCREATESTRUCTA createStruct = (LPCREATESTRUCTA)lParam;
1800

1801 1802
      SetWindowLongA(hwnd, 0, (LONG)createStruct->lpCreateParams);

1803 1804 1805 1806 1807

      break;
    }
    case WM_MOUSEMOVE:
    {
1808 1809
      TrackerWindowInfo* trackerInfo = (TrackerWindowInfo*)GetWindowLongA(hwnd, 0);
      POINT            mousePos;
1810 1811 1812 1813 1814 1815

      /*
       * Get the current mouse position in screen coordinates.
       */
      mousePos.x = LOWORD(lParam);
      mousePos.y = HIWORD(lParam);
1816
      ClientToScreen(hwnd, &mousePos);
1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831

      /*
       * Track the movement of the mouse.
       */
      OLEDD_TrackMouseMove(trackerInfo, mousePos, wParam);

      break;
    }
    case WM_LBUTTONUP:
    case WM_MBUTTONUP:
    case WM_RBUTTONUP:
    case WM_LBUTTONDOWN:
    case WM_MBUTTONDOWN:
    case WM_RBUTTONDOWN:
    {
1832 1833
      TrackerWindowInfo* trackerInfo = (TrackerWindowInfo*)GetWindowLongA(hwnd, 0);
      POINT            mousePos;
1834 1835 1836 1837 1838 1839

      /*
       * Get the current mouse position in screen coordinates.
       */
      mousePos.x = LOWORD(lParam);
      mousePos.y = HIWORD(lParam);
1840
      ClientToScreen(hwnd, &mousePos);
1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854

      /*
       * Notify everyone that the button state changed
       * TODO: Check if the "escape" key was pressed.
       */
      OLEDD_TrackStateChange(trackerInfo, mousePos, wParam);

      break;
    }
  }

  /*
   * This is a window proc after all. Let's call the default.
   */
1855
  return DefWindowProcA (hwnd, uMsg, wParam, lParam);
1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876
}

/***
 * OLEDD_TrackMouseMove()
 *
 * This method is invoked while a drag and drop operation is in effect.
 * it will generate the appropriate callbacks in the drop source
 * and drop target. It will also provide the expected feedback to
 * the user.
 *
 * params:
 *    trackerInfo - Pointer to the structure identifying the
 *                  drag & drop operation that is currently
 *                  active.
 *    mousePos    - Current position of the mouse in screen
 *                  coordinates.
 *    keyState    - Contains the state of the shift keys and the
 *                  mouse buttons (MK_LBUTTON and the like)
 */
static void OLEDD_TrackMouseMove(
  TrackerWindowInfo* trackerInfo,
1877
  POINT            mousePos,
1878 1879
  DWORD              keyState)
{
1880
  HWND   hwndNewTarget = 0;
1881 1882 1883 1884 1885
  HRESULT  hr = S_OK;

  /*
   * Get the handle of the window under the mouse
   */
1886
  hwndNewTarget = WindowFromPoint(mousePos);
1887

1888 1889 1890 1891 1892 1893
  /*
   * Every time, we re-initialize the effects passed to the
   * IDropTarget to the effects allowed by the source.
   */
  *trackerInfo->pdwEffect = trackerInfo->dwOKEffect;

1894 1895 1896 1897
  /*
   * If we are hovering over the same target as before, send the
   * DragOver notification
   */
1898
  if ( (trackerInfo->curDragTarget != 0) &&
1899
       (trackerInfo->curTargetHWND == hwndNewTarget) )
1900 1901
  {
    POINTL  mousePosParam;
1902

1903 1904 1905 1906 1907 1908 1909
    /*
     * The documentation tells me that the coordinate should be in the target
     * window's coordinate space. However, the tests I made tell me the
     * coordinates should be in screen coordinates.
     */
    mousePosParam.x = mousePos.x;
    mousePosParam.y = mousePos.y;
1910

1911 1912 1913 1914 1915 1916
    IDropTarget_DragOver(trackerInfo->curDragTarget,
			 keyState,
			 mousePosParam,
			 trackerInfo->pdwEffect);
  }
  else
1917
  {
1918
    DropTargetNode* newDropTargetNode = 0;
1919

1920 1921 1922 1923 1924 1925 1926 1927
    /*
     * If we changed window, we have to notify our old target and check for
     * the new one.
     */
    if (trackerInfo->curDragTarget!=0)
    {
      IDropTarget_DragLeave(trackerInfo->curDragTarget);
    }
1928

1929 1930 1931 1932 1933 1934 1935 1936
    /*
     * Make sure we're hovering over a window.
     */
    if (hwndNewTarget!=0)
    {
      /*
       * Find-out if there is a drag target under the mouse
       */
1937
      HWND nexttar = hwndNewTarget;
1938 1939
      trackerInfo->curTargetHWND = hwndNewTarget;

1940 1941 1942 1943 1944
      do {
	newDropTargetNode = OLEDD_FindDropTarget(nexttar);
      } while (!newDropTargetNode && (nexttar = GetParent(nexttar)) != 0);
      if(nexttar) hwndNewTarget = nexttar;

1945 1946
      trackerInfo->curDragTargetHWND = hwndNewTarget;
      trackerInfo->curDragTarget     = newDropTargetNode ? newDropTargetNode->dropTarget : 0;
1947

1948 1949 1950 1951 1952 1953
      /*
       * If there is, notify it that we just dragged-in
       */
      if (trackerInfo->curDragTarget!=0)
      {
	POINTL  mousePosParam;
1954

1955 1956 1957 1958 1959 1960 1961
	/*
	 * The documentation tells me that the coordinate should be in the target
	 * window's coordinate space. However, the tests I made tell me the
	 * coordinates should be in screen coordinates.
	 */
	mousePosParam.x = mousePos.x;
	mousePosParam.y = mousePos.y;
1962

1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975
	IDropTarget_DragEnter(trackerInfo->curDragTarget,
			      trackerInfo->dataObject,
			      keyState,
			      mousePosParam,
			      trackerInfo->pdwEffect);
      }
    }
    else
    {
      /*
       * The mouse is not over a window so we don't track anything.
       */
      trackerInfo->curDragTargetHWND = 0;
1976
      trackerInfo->curTargetHWND     = 0;
1977 1978 1979 1980 1981
      trackerInfo->curDragTarget     = 0;
    }
  }

  /*
1982 1983
   * Now that we have done that, we have to tell the source to give
   * us feedback on the work being done by the target.  If we don't
1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001
   * have a target, simulate no effect.
   */
  if (trackerInfo->curDragTarget==0)
  {
    *trackerInfo->pdwEffect = DROPEFFECT_NONE;
  }

  hr = IDropSource_GiveFeedback(trackerInfo->dropSource,
  				*trackerInfo->pdwEffect);

  /*
   * When we ask for feedback from the drop source, sometimes it will
   * do all the necessary work and sometimes it will not handle it
   * when that's the case, we must display the standard drag and drop
   * cursors.
   */
  if (hr==DRAGDROP_S_USEDEFAULTCURSORS)
  {
2002
    if (*trackerInfo->pdwEffect & DROPEFFECT_MOVE)
2003
    {
2004 2005 2006 2007 2008 2009 2010 2011 2012
      SetCursor(LoadCursorA(OLE32_hInstance, MAKEINTRESOURCEA(1)));
    }
    else if (*trackerInfo->pdwEffect & DROPEFFECT_COPY)
    {
      SetCursor(LoadCursorA(OLE32_hInstance, MAKEINTRESOURCEA(2)));
    }
    else if (*trackerInfo->pdwEffect & DROPEFFECT_LINK)
    {
      SetCursor(LoadCursorA(OLE32_hInstance, MAKEINTRESOURCEA(3)));
2013 2014 2015
    }
    else
    {
2016
      SetCursor(LoadCursorA(OLE32_hInstance, MAKEINTRESOURCEA(0)));
2017
    }
2018
  }
2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038
}

/***
 * OLEDD_TrackStateChange()
 *
 * This method is invoked while a drag and drop operation is in effect.
 * It is used to notify the drop target/drop source callbacks when
 * the state of the keyboard or mouse button change.
 *
 * params:
 *    trackerInfo - Pointer to the structure identifying the
 *                  drag & drop operation that is currently
 *                  active.
 *    mousePos    - Current position of the mouse in screen
 *                  coordinates.
 *    keyState    - Contains the state of the shift keys and the
 *                  mouse buttons (MK_LBUTTON and the like)
 */
static void OLEDD_TrackStateChange(
  TrackerWindowInfo* trackerInfo,
2039
  POINT            mousePos,
2040 2041 2042 2043 2044 2045 2046
  DWORD              keyState)
{
  /*
   * Ask the drop source what to do with the operation.
   */
  trackerInfo->returnValue = IDropSource_QueryContinueDrag(
			       trackerInfo->dropSource,
2047
			       trackerInfo->escPressed,
2048
			       keyState);
2049

2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061
  /*
   * All the return valued will stop the operation except the S_OK
   * return value.
   */
  if (trackerInfo->returnValue!=S_OK)
  {
    /*
     * Make sure the message loop in DoDragDrop stops
     */
    trackerInfo->trackingDone = TRUE;

    /*
2062
     * Release the mouse in case the drop target decides to show a popup
2063 2064 2065
     * or a menu or something.
     */
    ReleaseCapture();
2066

2067
    /*
2068
     * If we end-up over a target, drop the object in the target or
2069 2070 2071 2072 2073 2074 2075
     * inform the target that the operation was cancelled.
     */
    if (trackerInfo->curDragTarget!=0)
    {
      switch (trackerInfo->returnValue)
      {
	/*
2076
	 * If the source wants us to complete the operation, we tell
2077 2078 2079 2080 2081
	 * the drop target that we just dropped the object in it.
	 */
        case DRAGDROP_S_DROP:
	{
	  POINTL  mousePosParam;
2082

2083
	  /*
2084
	   * The documentation tells me that the coordinate should be
2085 2086 2087 2088 2089
	   * in the target window's coordinate space. However, the tests
	   * I made tell me the coordinates should be in screen coordinates.
	   */
	  mousePosParam.x = mousePos.x;
	  mousePosParam.y = mousePos.y;
2090

2091 2092 2093 2094 2095 2096 2097 2098
	  IDropTarget_Drop(trackerInfo->curDragTarget,
			   trackerInfo->dataObject,
			   keyState,
			   mousePosParam,
			   trackerInfo->pdwEffect);
	  break;
	}
	/*
2099
	 * If the source told us that we should cancel, fool the drop
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	 * target by telling it that the mouse left it's window.
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	 * Also set the drop effect to "NONE" in case the application
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	 * ignores the result of DoDragDrop.
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	 */
        case DRAGDROP_S_CANCEL:
	  IDropTarget_DragLeave(trackerInfo->curDragTarget);
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	  *trackerInfo->pdwEffect = DROPEFFECT_NONE;
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	  break;
      }
    }
  }
}

/***
 * OLEDD_GetButtonState()
 *
 * This method will use the current state of the keyboard to build
 * a button state mask equivalent to the one passed in the
 * WM_MOUSEMOVE wParam.
 */
static DWORD OLEDD_GetButtonState()
{
  BYTE  keyboardState[256];
  DWORD keyMask = 0;

  GetKeyboardState(keyboardState);

  if ( (keyboardState[VK_SHIFT] & 0x80) !=0)
    keyMask |= MK_SHIFT;

  if ( (keyboardState[VK_CONTROL] & 0x80) !=0)
    keyMask |= MK_CONTROL;

  if ( (keyboardState[VK_LBUTTON] & 0x80) !=0)
    keyMask |= MK_LBUTTON;

  if ( (keyboardState[VK_RBUTTON] & 0x80) !=0)
    keyMask |= MK_RBUTTON;

  if ( (keyboardState[VK_MBUTTON] & 0x80) !=0)
    keyMask |= MK_MBUTTON;

  return keyMask;
}

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/***
 * OLEDD_GetButtonState()
 *
 * This method will read the default value of the registry key in
 * parameter and extract a DWORD value from it. The registry key value
 * can be in a string key or a DWORD key.
 *
 * params:
 *     regKey   - Key to read the default value from
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 *     pdwValue - Pointer to the location where the DWORD
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 *                value is returned. This value is not modified
 *                if the value is not found.
 */

static void OLEUTL_ReadRegistryDWORDValue(
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  HKEY   regKey,
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  DWORD* pdwValue)
{
  char  buffer[20];
  DWORD dwKeyType;
  DWORD cbData = 20;
  LONG  lres;

  lres = RegQueryValueExA(regKey,
			  "",
			  NULL,
			  &dwKeyType,
			  (LPBYTE)buffer,
			  &cbData);

  if (lres==ERROR_SUCCESS)
  {
    switch (dwKeyType)
    {
      case REG_DWORD:
	*pdwValue = *(DWORD*)buffer;
	break;
      case REG_EXPAND_SZ:
      case REG_MULTI_SZ:
      case REG_SZ:
	*pdwValue = (DWORD)strtoul(buffer, NULL, 10);
	break;
    }
  }
}
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/******************************************************************************
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 * OleDraw (OLE32.@)
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 *
 * The operation of this function is documented literally in the WinAPI
 * documentation to involve a QueryInterface for the IViewObject interface,
 * followed by a call to IViewObject::Draw.
 */
HRESULT WINAPI OleDraw(
	IUnknown *pUnk,
	DWORD dwAspect,
	HDC hdcDraw,
	LPCRECT lprcBounds)
{
  HRESULT hres;
  IViewObject *viewobject;

  hres = IUnknown_QueryInterface(pUnk,
				 &IID_IViewObject,
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				 (void**)&viewobject);
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  if (SUCCEEDED(hres))
  {
    RECTL rectl;

    rectl.left = lprcBounds->left;
    rectl.right = lprcBounds->right;
    rectl.top = lprcBounds->top;
    rectl.bottom = lprcBounds->bottom;
    hres = IViewObject_Draw(viewobject, dwAspect, -1, 0, 0, 0, hdcDraw, &rectl, 0, 0, 0);

    IViewObject_Release(viewobject);
    return hres;
  }
  else
  {
    return DV_E_NOIVIEWOBJECT;
  }
}

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/***********************************************************************
 *             OleTranslateAccelerator [OLE32.@]
 */
HRESULT WINAPI OleTranslateAccelerator (LPOLEINPLACEFRAME lpFrame,
                   LPOLEINPLACEFRAMEINFO lpFrameInfo, LPMSG lpmsg)
{
    WORD wID;

    TRACE("(%p,%p,%p)\n", lpFrame, lpFrameInfo, lpmsg);

    if (IsAccelerator(lpFrameInfo->haccel,lpFrameInfo->cAccelEntries,lpmsg,&wID))
        return IOleInPlaceFrame_TranslateAccelerator(lpFrame,lpmsg,wID);

    return S_FALSE;
}

/******************************************************************************
 *              OleCreate        [OLE32.@]
 *
 */
HRESULT WINAPI OleCreate(
	REFCLSID rclsid,
	REFIID riid,
	DWORD renderopt,
	LPFORMATETC pFormatEtc,
	LPOLECLIENTSITE pClientSite,
	LPSTORAGE pStg,
	LPVOID* ppvObj)
{
    HRESULT hres, hres1;
    IUnknown * pUnk = NULL;

    FIXME("\n\t%s\n\t%s semi-stub!\n", debugstr_guid(rclsid), debugstr_guid(riid));

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    if (SUCCEEDED((hres = CoCreateInstance(rclsid, 0, CLSCTX_INPROC_SERVER|CLSCTX_INPROC_HANDLER|CLSCTX_LOCAL_SERVER , riid, (LPVOID*)&pUnk))))
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    {
        if (pClientSite)
        {
            IOleObject * pOE;
            IPersistStorage * pPS;
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            if (SUCCEEDED((hres = IUnknown_QueryInterface( pUnk, &IID_IOleObject, (LPVOID*)&pOE))))
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            {
                TRACE("trying to set clientsite %p\n", pClientSite);
                hres1 = IOleObject_SetClientSite(pOE, pClientSite);
                TRACE("-- result 0x%08lx\n", hres1);
                IOleObject_Release(pOE);
            }
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            if (SUCCEEDED((hres = IUnknown_QueryInterface( pUnk, &IID_IPersistStorage, (LPVOID*)&pPS))))
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            {
                TRACE("trying to set stg %p\n", pStg);
                hres1 = IPersistStorage_InitNew(pPS, pStg);
                TRACE("-- result 0x%08lx\n", hres1);
                IPersistStorage_Release(pPS);
            }
        }
    }

    *ppvObj = pUnk;

    TRACE("-- %p \n", pUnk);
    return hres;
}

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/******************************************************************************
 *              OleSetAutoConvert        [OLE32.@]
 */
HRESULT WINAPI OleSetAutoConvert(REFCLSID clsidOld, REFCLSID clsidNew)
{
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    static const WCHAR wszAutoConvertTo[] = {'A','u','t','o','C','o','n','v','e','r','t','T','o',0};
    HKEY hkey = NULL;
    WCHAR szClsidNew[CHARS_IN_GUID];
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    HRESULT res = S_OK;

    TRACE("(%s,%s)\n", debugstr_guid(clsidOld), debugstr_guid(clsidNew));
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    if (COM_OpenKeyForCLSID(clsidOld, KEY_READ | KEY_WRITE, &hkey))
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    {
        res = REGDB_E_CLASSNOTREG;
	goto done;
    }
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    StringFromGUID2(clsidNew, szClsidNew, CHARS_IN_GUID);
    if (RegSetValueW(hkey, wszAutoConvertTo, REG_SZ, szClsidNew, (strlenW(szClsidNew)+1) * sizeof(WCHAR)))
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    {
        res = REGDB_E_WRITEREGDB;
	goto done;
    }

done:
    if (hkey) RegCloseKey(hkey);
    return res;
}

/******************************************************************************
 *              OleDoAutoConvert        [OLE32.@]
 */
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HRESULT WINAPI OleDoAutoConvert(LPSTORAGE pStg, LPCLSID pClsidNew)
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{
    FIXME("(%p,%p) : stub\n",pStg,pClsidNew);
    return E_NOTIMPL;
}

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/******************************************************************************
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 *              OleDoAutoConvert        [OLE2.79]
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 */
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HRESULT WINAPI OleDoAutoConvert16(LPSTORAGE pStg, LPCLSID pClsidNew)
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{
    FIXME("(%p,%p) : stub\n",pStg,pClsidNew);
    return E_NOTIMPL;
}

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/***********************************************************************
 *           OLE_FreeClipDataArray   [internal]
 *
 * NOTES:
 *  frees the data associated with an array of CLIPDATAs
 */
static void OLE_FreeClipDataArray(ULONG count, CLIPDATA * pClipDataArray)
{
    ULONG i;
    for (i = 0; i < count; i++)
        if (pClipDataArray[i].pClipData)
            CoTaskMemFree(pClipDataArray[i].pClipData);
}

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/***********************************************************************
 *           PropSysAllocString			    [OLE32.@]
 * NOTES:
 *  Basically a copy of SysAllocStringLen.
 */
BSTR WINAPI PropSysAllocString(LPCOLESTR str)
{
    DWORD  bufferSize;
    DWORD* newBuffer;
    WCHAR* stringBuffer;
    int len;

    if (!str) return 0;

    len = lstrlenW(str);
    /*
     * Find the length of the buffer passed-in in bytes.
     */
    bufferSize = len * sizeof (WCHAR);

    /*
     * Allocate a new buffer to hold the string.
     * don't forget to keep an empty spot at the beginning of the
     * buffer for the character count and an extra character at the
     * end for the NULL.
     */
    newBuffer = HeapAlloc(GetProcessHeap(), 0,
                          bufferSize + sizeof(WCHAR) + sizeof(DWORD));

    /*
     * If the memory allocation failed, return a null pointer.
     */
    if (newBuffer==0)
      return 0;

    /*
     * Copy the length of the string in the placeholder.
     */
    *newBuffer = bufferSize;

    /*
     * Skip the byte count.
     */
    newBuffer++;

    /*
     * Copy the information in the buffer.
     * Since it is valid to pass a NULL pointer here, we'll initialize the
     * buffer to nul if it is the case.
     */
    if (str != 0)
      memcpy(newBuffer, str, bufferSize);
    else
      memset(newBuffer, 0, bufferSize);

    /*
     * Make sure that there is a nul character at the end of the
     * string.
     */
    stringBuffer = (WCHAR*)newBuffer;
    stringBuffer[len] = L'\0';

    return (LPWSTR)stringBuffer;
}

/***********************************************************************
 *           PropSysFreeString			    [OLE32.@]
 * NOTES
 *  Copy of SysFreeString.
 */
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void WINAPI PropSysFreeString(LPOLESTR str)
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{
    DWORD* bufferPointer;

    /* NULL is a valid parameter */
    if(!str) return;

    /*
     * We have to be careful when we free a BSTR pointer, it points to
     * the beginning of the string but it skips the byte count contained
     * before the string.
     */
    bufferPointer = (DWORD*)str;

    bufferPointer--;

    /*
     * Free the memory from its "real" origin.
     */
    HeapFree(GetProcessHeap(), 0, bufferPointer);
}

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/******************************************************************************
 * Check if a PROPVARIANT's type is valid.
 */
static inline HRESULT PROPVARIANT_ValidateType(VARTYPE vt)
{
    switch (vt)
    {
    case VT_EMPTY:
    case VT_NULL:
    case VT_I2:
    case VT_I4:
    case VT_R4:
    case VT_R8:
    case VT_CY:
    case VT_DATE:
    case VT_BSTR:
    case VT_ERROR:
    case VT_BOOL:
    case VT_UI1:
    case VT_UI2:
    case VT_UI4:
    case VT_I8:
    case VT_UI8:
    case VT_LPSTR:
    case VT_LPWSTR:
    case VT_FILETIME:
    case VT_BLOB:
    case VT_STREAM:
    case VT_STORAGE:
    case VT_STREAMED_OBJECT:
    case VT_STORED_OBJECT:
    case VT_BLOB_OBJECT:
    case VT_CF:
    case VT_CLSID:
    case VT_I2|VT_VECTOR:
    case VT_I4|VT_VECTOR:
    case VT_R4|VT_VECTOR:
    case VT_R8|VT_VECTOR:
    case VT_CY|VT_VECTOR:
    case VT_DATE|VT_VECTOR:
    case VT_BSTR|VT_VECTOR:
    case VT_ERROR|VT_VECTOR:
    case VT_BOOL|VT_VECTOR:
    case VT_VARIANT|VT_VECTOR:
    case VT_UI1|VT_VECTOR:
    case VT_UI2|VT_VECTOR:
    case VT_UI4|VT_VECTOR:
    case VT_I8|VT_VECTOR:
    case VT_UI8|VT_VECTOR:
    case VT_LPSTR|VT_VECTOR:
    case VT_LPWSTR|VT_VECTOR:
    case VT_FILETIME|VT_VECTOR:
    case VT_CF|VT_VECTOR:
    case VT_CLSID|VT_VECTOR:
        return S_OK;
    }
    WARN("Bad type %d\n", vt);
    return STG_E_INVALIDPARAMETER;
}

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/***********************************************************************
 *           PropVariantClear			    [OLE32.@]
 */
HRESULT WINAPI PropVariantClear(PROPVARIANT * pvar) /* [in/out] */
{
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    HRESULT hr;

2513 2514 2515 2516 2517
    TRACE("(%p)\n", pvar);

    if (!pvar)
        return S_OK;

2518 2519 2520 2521
    hr = PROPVARIANT_ValidateType(pvar->vt);
    if (FAILED(hr))
        return hr;

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    switch(pvar->vt)
    {
    case VT_STREAM:
    case VT_STREAMED_OBJECT:
    case VT_STORAGE:
    case VT_STORED_OBJECT:
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        if (pvar->u.pStream)
            IUnknown_Release(pvar->u.pStream);
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        break;
    case VT_CLSID:
    case VT_LPSTR:
    case VT_LPWSTR:
        /* pick an arbitary typed pointer - we don't care about the type
         * as we are just freeing it */
        CoTaskMemFree(pvar->u.puuid);
        break;
    case VT_BLOB:
    case VT_BLOB_OBJECT:
        CoTaskMemFree(pvar->u.blob.pBlobData);
        break;
    case VT_BSTR:
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        if (pvar->u.bstrVal)
2544
            PropSysFreeString(pvar->u.bstrVal);
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        break;
   case VT_CF:
        if (pvar->u.pclipdata)
        {
            OLE_FreeClipDataArray(1, pvar->u.pclipdata);
            CoTaskMemFree(pvar->u.pclipdata);
        }
        break;
    default:
2554
        if (pvar->vt & VT_VECTOR)
2555
        {
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            ULONG i;

            switch (pvar->vt & ~VT_VECTOR)
            {
            case VT_VARIANT:
                FreePropVariantArray(pvar->u.capropvar.cElems, pvar->u.capropvar.pElems);
                break;
            case VT_CF:
                OLE_FreeClipDataArray(pvar->u.caclipdata.cElems, pvar->u.caclipdata.pElems);
                break;
            case VT_BSTR:
                for (i = 0; i < pvar->u.cabstr.cElems; i++)
                    PropSysFreeString(pvar->u.cabstr.pElems[i]);
                break;
            case VT_LPSTR:
                for (i = 0; i < pvar->u.calpstr.cElems; i++)
                    CoTaskMemFree(pvar->u.calpstr.pElems[i]);
                break;
            case VT_LPWSTR:
                for (i = 0; i < pvar->u.calpwstr.cElems; i++)
                    CoTaskMemFree(pvar->u.calpwstr.pElems[i]);
                break;
            }
            if (pvar->vt & ~VT_VECTOR)
            {
                /* pick an arbitary VT_VECTOR structure - they all have the same
                 * memory layout */
                CoTaskMemFree(pvar->u.capropvar.pElems);
            }
2585
        }
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        else
            WARN("Invalid/unsupported type %d\n", pvar->vt);
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    }

    ZeroMemory(pvar, sizeof(*pvar));

    return S_OK;
}

/***********************************************************************
 *           PropVariantCopy			    [OLE32.@]
 */
HRESULT WINAPI PropVariantCopy(PROPVARIANT *pvarDest,      /* [out] */
                               const PROPVARIANT *pvarSrc) /* [in] */
{
    ULONG len;
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    HRESULT hr;

    TRACE("(%p, %p)\n", pvarDest, pvarSrc);

    hr = PROPVARIANT_ValidateType(pvarSrc->vt);
    if (FAILED(hr))
        return hr;
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    /* this will deal with most cases */
    CopyMemory(pvarDest, pvarSrc, sizeof(*pvarDest));

    switch(pvarSrc->vt)
    {
    case VT_STREAM:
    case VT_STREAMED_OBJECT:
    case VT_STORAGE:
    case VT_STORED_OBJECT:
        IUnknown_AddRef((LPUNKNOWN)pvarDest->u.pStream);
        break;
    case VT_CLSID:
        pvarDest->u.puuid = CoTaskMemAlloc(sizeof(CLSID));
        CopyMemory(pvarDest->u.puuid, pvarSrc->u.puuid, sizeof(CLSID));
        break;
    case VT_LPSTR:
        len = strlen(pvarSrc->u.pszVal);
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        pvarDest->u.pszVal = CoTaskMemAlloc((len+1)*sizeof(CHAR));
        CopyMemory(pvarDest->u.pszVal, pvarSrc->u.pszVal, (len+1)*sizeof(CHAR));
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        break;
    case VT_LPWSTR:
        len = lstrlenW(pvarSrc->u.pwszVal);
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        pvarDest->u.pwszVal = CoTaskMemAlloc((len+1)*sizeof(WCHAR));
        CopyMemory(pvarDest->u.pwszVal, pvarSrc->u.pwszVal, (len+1)*sizeof(WCHAR));
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        break;
    case VT_BLOB:
    case VT_BLOB_OBJECT:
        if (pvarSrc->u.blob.pBlobData)
        {
            len = pvarSrc->u.blob.cbSize;
            pvarDest->u.blob.pBlobData = CoTaskMemAlloc(len);
            CopyMemory(pvarDest->u.blob.pBlobData, pvarSrc->u.blob.pBlobData, len);
        }
        break;
    case VT_BSTR:
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        pvarDest->u.bstrVal = PropSysAllocString(pvarSrc->u.bstrVal);
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        break;
    case VT_CF:
        if (pvarSrc->u.pclipdata)
        {
            len = pvarSrc->u.pclipdata->cbSize - sizeof(pvarSrc->u.pclipdata->ulClipFmt);
            CoTaskMemAlloc(len);
            CopyMemory(pvarDest->u.pclipdata->pClipData, pvarSrc->u.pclipdata->pClipData, len);
        }
        break;
    default:
        if (pvarSrc->vt & VT_VECTOR)
        {
            int elemSize;
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            ULONG i;

            switch(pvarSrc->vt & ~VT_VECTOR)
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            {
            case VT_I1:       elemSize = sizeof(pvarSrc->u.cVal); break;
            case VT_UI1:      elemSize = sizeof(pvarSrc->u.bVal); break;
            case VT_I2:       elemSize = sizeof(pvarSrc->u.iVal); break;
            case VT_UI2:      elemSize = sizeof(pvarSrc->u.uiVal); break;
            case VT_BOOL:     elemSize = sizeof(pvarSrc->u.boolVal); break;
            case VT_I4:       elemSize = sizeof(pvarSrc->u.lVal); break;
            case VT_UI4:      elemSize = sizeof(pvarSrc->u.ulVal); break;
            case VT_R4:       elemSize = sizeof(pvarSrc->u.fltVal); break;
            case VT_R8:       elemSize = sizeof(pvarSrc->u.dblVal); break;
            case VT_ERROR:    elemSize = sizeof(pvarSrc->u.scode); break;
            case VT_I8:       elemSize = sizeof(pvarSrc->u.hVal); break;
            case VT_UI8:      elemSize = sizeof(pvarSrc->u.uhVal); break;
            case VT_CY:       elemSize = sizeof(pvarSrc->u.cyVal); break;
            case VT_DATE:     elemSize = sizeof(pvarSrc->u.date); break;
            case VT_FILETIME: elemSize = sizeof(pvarSrc->u.filetime); break;
            case VT_CLSID:    elemSize = sizeof(*pvarSrc->u.puuid); break;
            case VT_CF:       elemSize = sizeof(*pvarSrc->u.pclipdata); break;
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            case VT_BSTR:     elemSize = sizeof(*pvarSrc->u.bstrVal); break;
            case VT_LPSTR:    elemSize = sizeof(*pvarSrc->u.pszVal); break;
            case VT_LPWSTR:   elemSize = sizeof(*pvarSrc->u.pwszVal); break;
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            case VT_VARIANT:
            default:
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                FIXME("Invalid element type: %ul\n", pvarSrc->vt & ~VT_VECTOR);
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                return E_INVALIDARG;
            }
            len = pvarSrc->u.capropvar.cElems;
            pvarDest->u.capropvar.pElems = CoTaskMemAlloc(len * elemSize);
            if (pvarSrc->vt == (VT_VECTOR | VT_VARIANT))
            {
                for (i = 0; i < len; i++)
                    PropVariantCopy(&pvarDest->u.capropvar.pElems[i], &pvarSrc->u.capropvar.pElems[i]);
            }
            else if (pvarSrc->vt == (VT_VECTOR | VT_CF))
            {
                FIXME("Copy clipformats\n");
            }
            else if (pvarSrc->vt == (VT_VECTOR | VT_BSTR))
            {
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                for (i = 0; i < len; i++)
                    pvarDest->u.cabstr.pElems[i] = PropSysAllocString(pvarSrc->u.cabstr.pElems[i]);
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            }
            else if (pvarSrc->vt == (VT_VECTOR | VT_LPSTR))
            {
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                size_t strLen;
                for (i = 0; i < len; i++)
                {
                    strLen = lstrlenA(pvarSrc->u.calpstr.pElems[i]) + 1;
                    pvarDest->u.calpstr.pElems[i] = CoTaskMemAlloc(strLen);
                    memcpy(pvarDest->u.calpstr.pElems[i],
                     pvarSrc->u.calpstr.pElems[i], strLen);
                }
2715
            }
2716
            else if (pvarSrc->vt == (VT_VECTOR | VT_LPWSTR))
2717
            {
2718 2719 2720 2721 2722 2723 2724 2725 2726
                size_t strLen;
                for (i = 0; i < len; i++)
                {
                    strLen = (lstrlenW(pvarSrc->u.calpwstr.pElems[i]) + 1) *
                     sizeof(WCHAR);
                    pvarDest->u.calpstr.pElems[i] = CoTaskMemAlloc(strLen);
                    memcpy(pvarDest->u.calpstr.pElems[i],
                     pvarSrc->u.calpstr.pElems[i], strLen);
                }
2727 2728 2729 2730
            }
            else
                CopyMemory(pvarDest->u.capropvar.pElems, pvarSrc->u.capropvar.pElems, len * elemSize);
        }
2731 2732
        else
            WARN("Invalid/unsupported type %d\n", pvarSrc->vt);
2733 2734 2735 2736 2737 2738 2739 2740 2741 2742 2743 2744 2745 2746 2747 2748 2749 2750 2751 2752 2753
    }

    return S_OK;
}

/***********************************************************************
 *           FreePropVariantArray			    [OLE32.@]
 */
HRESULT WINAPI FreePropVariantArray(ULONG cVariants, /* [in] */
                                    PROPVARIANT *rgvars)    /* [in/out] */
{
    ULONG i;

    TRACE("(%lu, %p)\n", cVariants, rgvars);

    for(i = 0; i < cVariants; i++)
        PropVariantClear(&rgvars[i]);

    return S_OK;
}

2754
/******************************************************************************
2755
 * DllDebugObjectRPCHook (OLE32.@)
2756 2757 2758 2759 2760 2761 2762 2763
 * turns on and off internal debugging,  pointer is only used on macintosh
 */

BOOL WINAPI DllDebugObjectRPCHook(BOOL b, void *dummy)
{
  FIXME("stub\n");
  return TRUE;
}