assoc.c 21.5 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61
/*
 * IQueryAssociations object and helper functions
 *
 * Copyright 2002 Jon Griffiths
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */
#include <stdarg.h>
#include <assert.h>

#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winreg.h"
#include "objbase.h"
#include "shlguid.h"
#include "shlwapi.h"
#include "shell32_main.h"
#include "ver.h"
#include "wine/unicode.h"
#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(shell);

/**************************************************************************
 *  IQueryAssociations {SHELL32}
 *
 * DESCRIPTION
 *  This object provides a layer of abstraction over the system registry in
 *  order to simplify the process of parsing associations between files.
 *  Associations in this context means the registry entries that link (for
 *  example) the extension of a file with its description, list of
 *  applications to open the file with, and actions that can be performed on it
 *  (the shell displays such information in the context menu of explorer
 *  when you right-click on a file).
 *
 * HELPERS
 * You can use this object transparently by calling the helper functions
 * AssocQueryKeyA(), AssocQueryStringA() and AssocQueryStringByKeyA(). These
 * create an IQueryAssociations object, perform the requested actions
 * and then dispose of the object. Alternatively, you can create an instance
 * of the object using AssocCreate() and call the following methods on it:
 *
 * METHODS
 */

typedef struct
{
62
  IQueryAssociations IQueryAssociations_iface;
63 64 65 66 67
  LONG ref;
  HKEY hkeySource;
  HKEY hkeyProgID;
} IQueryAssociationsImpl;

68 69 70 71 72
static inline IQueryAssociationsImpl *impl_from_IQueryAssociations(IQueryAssociations *iface)
{
  return CONTAINING_RECORD(iface, IQueryAssociationsImpl, IQueryAssociations_iface);
}

73 74 75 76 77 78 79 80 81 82
/**************************************************************************
 *  IQueryAssociations_QueryInterface {SHLWAPI}
 *
 * See IUnknown_QueryInterface.
 */
static HRESULT WINAPI IQueryAssociations_fnQueryInterface(
  IQueryAssociations* iface,
  REFIID riid,
  LPVOID *ppvObj)
{
83
  IQueryAssociationsImpl *This = impl_from_IQueryAssociations(iface);
84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108

  TRACE("(%p,%s,%p)\n",This, debugstr_guid(riid), ppvObj);

  *ppvObj = NULL;

  if (IsEqualIID(riid, &IID_IUnknown) ||
      IsEqualIID(riid, &IID_IQueryAssociations))
  {
    *ppvObj = This;

    IQueryAssociations_AddRef((IQueryAssociations*)*ppvObj);
    TRACE("Returning IQueryAssociations (%p)\n", *ppvObj);
    return S_OK;
  }
  TRACE("Returning E_NOINTERFACE\n");
  return E_NOINTERFACE;
}

/**************************************************************************
 *  IQueryAssociations_AddRef {SHLWAPI}
 *
 * See IUnknown_AddRef.
 */
static ULONG WINAPI IQueryAssociations_fnAddRef(IQueryAssociations *iface)
{
109
  IQueryAssociationsImpl *This = impl_from_IQueryAssociations(iface);
110 111 112 113 114 115 116 117 118 119 120 121 122 123
  ULONG refCount = InterlockedIncrement(&This->ref);

  TRACE("(%p)->(ref before=%u)\n",This, refCount - 1);

  return refCount;
}

/**************************************************************************
 *  IQueryAssociations_Release {SHLWAPI}
 *
 * See IUnknown_Release.
 */
static ULONG WINAPI IQueryAssociations_fnRelease(IQueryAssociations *iface)
{
124
  IQueryAssociationsImpl *This = impl_from_IQueryAssociations(iface);
125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163
  ULONG refCount = InterlockedDecrement(&This->ref);

  TRACE("(%p)->(ref before=%u)\n",This, refCount + 1);

  if (!refCount)
  {
    TRACE("Destroying IQueryAssociations (%p)\n", This);
    RegCloseKey(This->hkeySource);
    RegCloseKey(This->hkeyProgID);
    HeapFree(GetProcessHeap(), 0, This);
  }

  return refCount;
}

/**************************************************************************
 *  IQueryAssociations_Init {SHLWAPI}
 *
 * Initialise an IQueryAssociations object.
 *
 * PARAMS
 *  iface      [I] IQueryAssociations interface to initialise
 *  cfFlags    [I] ASSOCF_ flags from "shlwapi.h"
 *  pszAssoc   [I] String for the root key name, or NULL if hkeyProgid is given
 *  hkeyProgid [I] Handle for the root key, or NULL if pszAssoc is given
 *  hWnd       [I] Reserved, must be NULL.
 *
 * RETURNS
 *  Success: S_OK. iface is initialised with the parameters given.
 *  Failure: An HRESULT error code indicating the error.
 */
static HRESULT WINAPI IQueryAssociations_fnInit(
  IQueryAssociations *iface,
  ASSOCF cfFlags,
  LPCWSTR pszAssoc,
  HKEY hkeyProgid,
  HWND hWnd)
{
    static const WCHAR szProgID[] = {'P','r','o','g','I','D',0};
164
    IQueryAssociationsImpl *This = impl_from_IQueryAssociations(iface);
165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327
    LONG ret;

    TRACE("(%p)->(%d,%s,%p,%p)\n", iface,
                                    cfFlags,
                                    debugstr_w(pszAssoc),
                                    hkeyProgid,
                                    hWnd);
    if (hWnd != NULL)
        FIXME("hwnd != NULL not supported\n");
    if (cfFlags != 0)
	FIXME("unsupported flags: %x\n", cfFlags);
    if (pszAssoc != NULL)
    {
        ret = RegOpenKeyExW(HKEY_CLASSES_ROOT,
                            pszAssoc,
                            0,
                            KEY_READ,
                            &This->hkeySource);
        if (ret != ERROR_SUCCESS)
            return E_FAIL;
        /* if this is not a prog id */
        if ((*pszAssoc == '.') || (*pszAssoc == '{'))
        {
            RegOpenKeyExW(This->hkeySource,
                          szProgID,
                          0,
                          KEY_READ,
                          &This->hkeyProgID);
        }
        else
            This->hkeyProgID = This->hkeySource;
        return S_OK;
    }
    else if (hkeyProgid != NULL)
    {
        This->hkeyProgID = hkeyProgid;
        return S_OK;
    }
    else
        return E_INVALIDARG;
}

static HRESULT ASSOC_GetValue(HKEY hkey, WCHAR ** pszText)
{
  DWORD len;
  LONG ret;

  assert(pszText);
  ret = RegQueryValueExW(hkey, NULL, 0, NULL, NULL, &len);
  if (ret != ERROR_SUCCESS)
    return HRESULT_FROM_WIN32(ret);
  if (!len)
    return E_FAIL;
  *pszText = HeapAlloc(GetProcessHeap(), 0, len);
  if (!*pszText)
    return E_OUTOFMEMORY;
  ret = RegQueryValueExW(hkey, NULL, 0, NULL, (LPBYTE)*pszText,
                         &len);
  if (ret != ERROR_SUCCESS)
  {
    HeapFree(GetProcessHeap(), 0, *pszText);
    return HRESULT_FROM_WIN32(ret);
  }
  return S_OK;
}

static HRESULT ASSOC_GetCommand(IQueryAssociationsImpl *This,
                                LPCWSTR pszExtra, WCHAR **ppszCommand)
{
  HKEY hkeyCommand;
  HKEY hkeyFile;
  HKEY hkeyShell;
  HKEY hkeyVerb;
  HRESULT hr;
  LONG ret;
  WCHAR * pszExtraFromReg = NULL;
  WCHAR * pszFileType;
  static const WCHAR commandW[] = { 'c','o','m','m','a','n','d',0 };
  static const WCHAR shellW[] = { 's','h','e','l','l',0 };

  hr = ASSOC_GetValue(This->hkeySource, &pszFileType);
  if (FAILED(hr))
    return hr;
  ret = RegOpenKeyExW(HKEY_CLASSES_ROOT, pszFileType, 0, KEY_READ, &hkeyFile);
  HeapFree(GetProcessHeap(), 0, pszFileType);
  if (ret != ERROR_SUCCESS)
    return HRESULT_FROM_WIN32(ret);

  ret = RegOpenKeyExW(hkeyFile, shellW, 0, KEY_READ, &hkeyShell);
  RegCloseKey(hkeyFile);
  if (ret != ERROR_SUCCESS)
    return HRESULT_FROM_WIN32(ret);

  if (!pszExtra)
  {
    hr = ASSOC_GetValue(hkeyShell, &pszExtraFromReg);
    /* if no default action */
    if (hr == E_FAIL || hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND))
    {
      DWORD rlen;
      ret = RegQueryInfoKeyW(hkeyShell, 0, 0, 0, 0, &rlen, 0, 0, 0, 0, 0, 0);
      if (ret != ERROR_SUCCESS)
      {
        RegCloseKey(hkeyShell);
        return HRESULT_FROM_WIN32(ret);
      }
      rlen++;
      pszExtraFromReg = HeapAlloc(GetProcessHeap(), 0, rlen * sizeof(WCHAR));
      if (!pszExtraFromReg)
      {
        RegCloseKey(hkeyShell);
        return E_OUTOFMEMORY;
      }
      ret = RegEnumKeyExW(hkeyShell, 0, pszExtraFromReg, &rlen, 0, NULL, NULL, NULL);
      if (ret != ERROR_SUCCESS)
      {
        RegCloseKey(hkeyShell);
        return HRESULT_FROM_WIN32(ret);
      }
    }
    else if (FAILED(hr))
    {
      RegCloseKey(hkeyShell);
      return hr;
    }
  }

  ret = RegOpenKeyExW(hkeyShell, pszExtra ? pszExtra : pszExtraFromReg, 0,
                      KEY_READ, &hkeyVerb);
  HeapFree(GetProcessHeap(), 0, pszExtraFromReg);
  RegCloseKey(hkeyShell);
  if (ret != ERROR_SUCCESS)
    return HRESULT_FROM_WIN32(ret);

  ret = RegOpenKeyExW(hkeyVerb, commandW, 0, KEY_READ, &hkeyCommand);
  RegCloseKey(hkeyVerb);
  if (ret != ERROR_SUCCESS)
    return HRESULT_FROM_WIN32(ret);
  hr = ASSOC_GetValue(hkeyCommand, ppszCommand);
  RegCloseKey(hkeyCommand);
  return hr;
}

static HRESULT ASSOC_GetExecutable(IQueryAssociationsImpl *This,
                                   LPCWSTR pszExtra, LPWSTR path,
                                   DWORD pathlen, DWORD *len)
{
  WCHAR *pszCommand;
  WCHAR *pszStart;
  WCHAR *pszEnd;
  HRESULT hr;

  assert(len);

  hr = ASSOC_GetCommand(This, pszExtra, &pszCommand);
  if (FAILED(hr))
    return hr;

  /* cleanup pszCommand */
  if (pszCommand[0] == '"')
  {
    pszStart = pszCommand + 1;
    pszEnd = strchrW(pszStart, '"');
328 329 330
    if (pszEnd)
      *pszEnd = 0;
    *len = SearchPathW(NULL, pszStart, NULL, pathlen, path, NULL);
331 332 333 334
  }
  else
  {
    pszStart = pszCommand;
335 336 337 338 339 340 341 342 343 344
    for (pszEnd = pszStart; (pszEnd = strchrW(pszEnd, ' ')); pszEnd++)
    {
      WCHAR c = *pszEnd;
      *pszEnd = 0;
      if ((*len = SearchPathW(NULL, pszStart, NULL, pathlen, path, NULL)))
        break;
      *pszEnd = c;
    }
    if (!pszEnd)
      *len = SearchPathW(NULL, pszStart, NULL, pathlen, path, NULL);
345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400
  }

  HeapFree(GetProcessHeap(), 0, pszCommand);
  if (!*len)
    return HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
  return S_OK;
}

static HRESULT ASSOC_ReturnData(LPWSTR out, DWORD *outlen, LPCWSTR data,
                                DWORD datalen)
{
  assert(outlen);

  if (out)
  {
    if (*outlen < datalen)
    {
      *outlen = datalen;
      return E_POINTER;
    }
    *outlen = datalen;
    lstrcpynW(out, data, datalen);
    return S_OK;
  }
  else
  {
    *outlen = datalen;
    return S_FALSE;
  }
}

/**************************************************************************
 *  IQueryAssociations_GetString {SHLWAPI}
 *
 * Get a file association string from the registry.
 *
 * PARAMS
 *  iface    [I]   IQueryAssociations interface to query
 *  cfFlags  [I]   ASSOCF_ flags from "shlwapi.h"
 *  str      [I]   Type of string to get (ASSOCSTR enum from "shlwapi.h")
 *  pszExtra [I]   Extra information about the string location
 *  pszOut   [O]   Destination for the association string
 *  pcchOut  [I/O] Length of pszOut
 *
 * RETURNS
 *  Success: S_OK. pszOut contains the string, pcchOut contains its length.
 *  Failure: An HRESULT error code indicating the error.
 */
static HRESULT WINAPI IQueryAssociations_fnGetString(
  IQueryAssociations *iface,
  ASSOCF cfFlags,
  ASSOCSTR str,
  LPCWSTR pszExtra,
  LPWSTR pszOut,
  DWORD *pcchOut)
{
401
  IQueryAssociationsImpl *This = impl_from_IQueryAssociations(iface);
402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512
  const ASSOCF cfUnimplemented = ~(0);
  DWORD len = 0;
  HRESULT hr;
  WCHAR path[MAX_PATH];

  TRACE("(%p,0x%8x,0x%8x,%s,%p,%p)\n", This, cfFlags, str,
        debugstr_w(pszExtra), pszOut, pcchOut);

  if (cfFlags & cfUnimplemented)
    FIXME("%08x: unimplemented flags!\n", cfFlags & cfUnimplemented);

  if (!pcchOut)
    return E_UNEXPECTED;

  switch (str)
  {
    case ASSOCSTR_COMMAND:
    {
      WCHAR *command;
      hr = ASSOC_GetCommand(This, pszExtra, &command);
      if (SUCCEEDED(hr))
      {
        hr = ASSOC_ReturnData(pszOut, pcchOut, command, strlenW(command) + 1);
        HeapFree(GetProcessHeap(), 0, command);
      }
      return hr;
    }

    case ASSOCSTR_EXECUTABLE:
    {
      hr = ASSOC_GetExecutable(This, pszExtra, path, MAX_PATH, &len);
      if (FAILED(hr))
        return hr;
      len++;
      return ASSOC_ReturnData(pszOut, pcchOut, path, len);
    }

    case ASSOCSTR_FRIENDLYDOCNAME:
    {
      WCHAR *pszFileType;
      DWORD ret;
      DWORD size;

      hr = ASSOC_GetValue(This->hkeySource, &pszFileType);
      if (FAILED(hr))
        return hr;
      size = 0;
      ret = RegGetValueW(HKEY_CLASSES_ROOT, pszFileType, NULL, RRF_RT_REG_SZ, NULL, NULL, &size);
      if (ret == ERROR_SUCCESS)
      {
        WCHAR *docName = HeapAlloc(GetProcessHeap(), 0, size);
        if (docName)
        {
          ret = RegGetValueW(HKEY_CLASSES_ROOT, pszFileType, NULL, RRF_RT_REG_SZ, NULL, docName, &size);
          if (ret == ERROR_SUCCESS)
            hr = ASSOC_ReturnData(pszOut, pcchOut, docName, strlenW(docName) + 1);
          else
            hr = HRESULT_FROM_WIN32(ret);
          HeapFree(GetProcessHeap(), 0, docName);
        }
        else
          hr = E_OUTOFMEMORY;
      }
      else
        hr = HRESULT_FROM_WIN32(ret);
      HeapFree(GetProcessHeap(), 0, pszFileType);
      return hr;
    }

    case ASSOCSTR_FRIENDLYAPPNAME:
    {
      PVOID verinfoW = NULL;
      DWORD size, retval = 0;
      UINT flen;
      WCHAR *bufW;
      static const WCHAR translationW[] = {
        '\\','V','a','r','F','i','l','e','I','n','f','o',
        '\\','T','r','a','n','s','l','a','t','i','o','n',0
      };
      static const WCHAR fileDescFmtW[] = {
        '\\','S','t','r','i','n','g','F','i','l','e','I','n','f','o',
        '\\','%','0','4','x','%','0','4','x',
        '\\','F','i','l','e','D','e','s','c','r','i','p','t','i','o','n',0
      };
      WCHAR fileDescW[41];

      hr = ASSOC_GetExecutable(This, pszExtra, path, MAX_PATH, &len);
      if (FAILED(hr))
        return hr;

      retval = GetFileVersionInfoSizeW(path, &size);
      if (!retval)
        goto get_friendly_name_fail;
      verinfoW = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, retval);
      if (!verinfoW)
        return E_OUTOFMEMORY;
      if (!GetFileVersionInfoW(path, 0, retval, verinfoW))
        goto get_friendly_name_fail;
      if (VerQueryValueW(verinfoW, translationW, (LPVOID *)&bufW, &flen))
      {
        UINT i;
        DWORD *langCodeDesc = (DWORD *)bufW;
        for (i = 0; i < flen / sizeof(DWORD); i++)
        {
          sprintfW(fileDescW, fileDescFmtW, LOWORD(langCodeDesc[i]),
                   HIWORD(langCodeDesc[i]));
          if (VerQueryValueW(verinfoW, fileDescW, (LPVOID *)&bufW, &flen))
          {
            /* Does strlenW(bufW) == 0 mean we use the filename? */
            len = strlenW(bufW) + 1;
            TRACE("found FileDescription: %s\n", debugstr_w(bufW));
513 514 515
            hr = ASSOC_ReturnData(pszOut, pcchOut, bufW, len);
            HeapFree(GetProcessHeap(), 0, verinfoW);
            return hr;
516 517 518 519 520 521 522
          }
        }
      }
get_friendly_name_fail:
      PathRemoveExtensionW(path);
      PathStripPathW(path);
      TRACE("using filename: %s\n", debugstr_w(path));
523 524 525
      hr = ASSOC_ReturnData(pszOut, pcchOut, path, strlenW(path) + 1);
      HeapFree(GetProcessHeap(), 0, verinfoW);
      return hr;
526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623
    }

    case ASSOCSTR_CONTENTTYPE:
    {
      static const WCHAR Content_TypeW[] = {'C','o','n','t','e','n','t',' ','T','y','p','e',0};
      WCHAR *contentType;
      DWORD ret;
      DWORD size;

      size = 0;
      ret = RegGetValueW(This->hkeySource, NULL, Content_TypeW, RRF_RT_REG_SZ, NULL, NULL, &size);
      if (ret != ERROR_SUCCESS)
        return HRESULT_FROM_WIN32(ret);
      contentType = HeapAlloc(GetProcessHeap(), 0, size);
      if (contentType != NULL)
      {
        ret = RegGetValueW(This->hkeySource, NULL, Content_TypeW, RRF_RT_REG_SZ, NULL, contentType, &size);
        if (ret == ERROR_SUCCESS)
          hr = ASSOC_ReturnData(pszOut, pcchOut, contentType, strlenW(contentType) + 1);
        else
          hr = HRESULT_FROM_WIN32(ret);
        HeapFree(GetProcessHeap(), 0, contentType);
      }
      else
        hr = E_OUTOFMEMORY;
      return hr;
    }

    case ASSOCSTR_DEFAULTICON:
    {
      static const WCHAR DefaultIconW[] = {'D','e','f','a','u','l','t','I','c','o','n',0};
      WCHAR *pszFileType;
      DWORD ret;
      DWORD size;
      HKEY hkeyFile;

      hr = ASSOC_GetValue(This->hkeySource, &pszFileType);
      if (FAILED(hr))
        return hr;
      ret = RegOpenKeyExW(HKEY_CLASSES_ROOT, pszFileType, 0, KEY_READ, &hkeyFile);
      if (ret == ERROR_SUCCESS)
      {
        size = 0;
        ret = RegGetValueW(hkeyFile, DefaultIconW, NULL, RRF_RT_REG_SZ, NULL, NULL, &size);
        if (ret == ERROR_SUCCESS)
        {
          WCHAR *icon = HeapAlloc(GetProcessHeap(), 0, size);
          if (icon)
          {
            ret = RegGetValueW(hkeyFile, DefaultIconW, NULL, RRF_RT_REG_SZ, NULL, icon, &size);
            if (ret == ERROR_SUCCESS)
              hr = ASSOC_ReturnData(pszOut, pcchOut, icon, strlenW(icon) + 1);
            else
              hr = HRESULT_FROM_WIN32(ret);
            HeapFree(GetProcessHeap(), 0, icon);
          }
          else
            hr = E_OUTOFMEMORY;
        }
        else
          hr = HRESULT_FROM_WIN32(ret);
        RegCloseKey(hkeyFile);
      }
      else
        hr = HRESULT_FROM_WIN32(ret);
      HeapFree(GetProcessHeap(), 0, pszFileType);
      return hr;
    }

    default:
      FIXME("assocstr %d unimplemented!\n", str);
      return E_NOTIMPL;
  }
}

/**************************************************************************
 *  IQueryAssociations_GetKey {SHLWAPI}
 *
 * Get a file association key from the registry.
 *
 * PARAMS
 *  iface    [I] IQueryAssociations interface to query
 *  cfFlags  [I] ASSOCF_ flags from "shlwapi.h"
 *  assockey [I] Type of key to get (ASSOCKEY enum from "shlwapi.h")
 *  pszExtra [I] Extra information about the key location
 *  phkeyOut [O] Destination for the association key
 *
 * RETURNS
 *  Success: S_OK. phkeyOut contains a handle to the key.
 *  Failure: An HRESULT error code indicating the error.
 */
static HRESULT WINAPI IQueryAssociations_fnGetKey(
  IQueryAssociations *iface,
  ASSOCF cfFlags,
  ASSOCKEY assockey,
  LPCWSTR pszExtra,
  HKEY *phkeyOut)
{
624
  IQueryAssociationsImpl *This = impl_from_IQueryAssociations(iface);
625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655

  FIXME("(%p,0x%8x,0x%8x,%s,%p)-stub!\n", This, cfFlags, assockey,
        debugstr_w(pszExtra), phkeyOut);
  return E_NOTIMPL;
}

/**************************************************************************
 *  IQueryAssociations_GetData {SHLWAPI}
 *
 * Get the data for a file association key from the registry.
 *
 * PARAMS
 *  iface     [I]   IQueryAssociations interface to query
 *  cfFlags   [I]   ASSOCF_ flags from "shlwapi.h"
 *  assocdata [I]   Type of data to get (ASSOCDATA enum from "shlwapi.h")
 *  pszExtra  [I]   Extra information about the data location
 *  pvOut     [O]   Destination for the association key
 *  pcbOut    [I/O] Size of pvOut
 *
 * RETURNS
 *  Success: S_OK. pszOut contains the data, pcbOut contains its length.
 *  Failure: An HRESULT error code indicating the error.
 */
static HRESULT WINAPI IQueryAssociations_fnGetData(
  IQueryAssociations *iface,
  ASSOCF cfFlags,
  ASSOCDATA assocdata,
  LPCWSTR pszExtra,
  LPVOID pvOut,
  DWORD *pcbOut)
{
656
  IQueryAssociationsImpl *This = impl_from_IQueryAssociations(iface);
657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690

  FIXME("(%p,0x%8x,0x%8x,%s,%p,%p)-stub!\n", This, cfFlags, assocdata,
        debugstr_w(pszExtra), pvOut, pcbOut);
  return E_NOTIMPL;
}

/**************************************************************************
 *  IQueryAssociations_GetEnum {SHLWAPI}
 *
 * Not yet implemented in native Win32.
 *
 * PARAMS
 *  iface     [I] IQueryAssociations interface to query
 *  cfFlags   [I] ASSOCF_ flags from "shlwapi.h"
 *  assocenum [I] Type of enum to get (ASSOCENUM enum from "shlwapi.h")
 *  pszExtra  [I] Extra information about the enum location
 *  riid      [I] REFIID to look for
 *  ppvOut    [O] Destination for the interface.
 *
 * RETURNS
 *  Success: S_OK.
 *  Failure: An HRESULT error code indicating the error.
 *
 * NOTES
 *  Presumably this function returns an enumerator object.
 */
static HRESULT WINAPI IQueryAssociations_fnGetEnum(
  IQueryAssociations *iface,
  ASSOCF cfFlags,
  ASSOCENUM assocenum,
  LPCWSTR pszExtra,
  REFIID riid,
  LPVOID *ppvOut)
{
691
  IQueryAssociationsImpl *This = impl_from_IQueryAssociations(iface);
692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722

  FIXME("(%p,0x%8x,0x%8x,%s,%s,%p)-stub!\n", This, cfFlags, assocenum,
        debugstr_w(pszExtra), debugstr_guid(riid), ppvOut);
  return E_NOTIMPL;
}

static const IQueryAssociationsVtbl IQueryAssociations_vtbl =
{
  IQueryAssociations_fnQueryInterface,
  IQueryAssociations_fnAddRef,
  IQueryAssociations_fnRelease,
  IQueryAssociations_fnInit,
  IQueryAssociations_fnGetString,
  IQueryAssociations_fnGetKey,
  IQueryAssociations_fnGetData,
  IQueryAssociations_fnGetEnum
};

/**************************************************************************
 *  IQueryAssociations_Constructor [internal]
 *
 * Construct a new IQueryAssociations object.
 */
HRESULT WINAPI QueryAssociations_Constructor(IUnknown *pUnkOuter, REFIID riid, LPVOID *ppOutput)
{
    IQueryAssociationsImpl* this;
    HRESULT ret;

    if (pUnkOuter) return CLASS_E_NOAGGREGATION;

    if (!(this = SHAlloc(sizeof(*this)))) return E_OUTOFMEMORY;
723
    this->IQueryAssociations_iface.lpVtbl = &IQueryAssociations_vtbl;
724 725 726 727 728 729 730
    this->ref = 0;
    this->hkeySource = 0;
    this->hkeyProgID = 0;
    if (FAILED(ret = IUnknown_QueryInterface((IUnknown *)this, riid, ppOutput))) SHFree( this );
    TRACE("returning %p\n", *ppOutput);
    return ret;
}