win32u: Implement input context object.

dlls/win32u/Makefile.in

@@ -32,6 +32,7 @@ C_SRCS = \
 	freetype.c \
 	gdiobj.c \
 	hook.c \
+	imm.c \
 	input.c \
 	main.c \
 	mapping.c \

dlls/win32u/imm.c

+/*
+ * Input Context implementation
+ *
+ * Copyright 2022 Jacek Caban for CodeWeavers
+ *
+ * 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
+ */
+
+#if 0
+#pragma makedep unix
+#endif
+
+#include "win32u_private.h"
+#include "ntuser_private.h"
+#include "wine/debug.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(imm);
+
+
+struct imc
+{
+    struct user_object obj;
+    DWORD    thread_id;
+    UINT_PTR client_ptr;
+};
+
+
+static struct imc *get_imc_ptr( HIMC handle )
+{
+    struct imc *imc = get_user_handle_ptr( handle, NTUSER_OBJ_IMC );
+    if (imc && imc != OBJ_OTHER_PROCESS) return imc;
+    WARN( "invalid handle %p\n", handle );
+    SetLastError( ERROR_INVALID_HANDLE );
+    return NULL;
+}
+
+static void release_imc_ptr( struct imc *imc )
+{
+    release_user_handle_ptr( imc );
+}
+
+/******************************************************************************
+ *           NtUserCreateInputContext   (win32u.@)
+ */
+HIMC WINAPI NtUserCreateInputContext( UINT_PTR client_ptr )
+{
+    struct imc *imc;
+    HIMC handle;
+
+    if (!(imc = malloc( sizeof(*imc) ))) return 0;
+    imc->client_ptr = client_ptr;
+    imc->thread_id = GetCurrentThreadId();
+    if (!(handle = alloc_user_handle( &imc->obj, NTUSER_OBJ_IMC )))
+    {
+        free( imc );
+        return 0;
+    }
+
+    TRACE( "%lx returning %p\n", client_ptr, handle );
+    return handle;
+}
+
+/******************************************************************************
+ *           NtUserDestroyInputContext   (win32u.@)
+ */
+BOOL WINAPI NtUserDestroyInputContext( HIMC handle )
+{
+    struct imc *imc;
+
+    TRACE( "%p\n", handle );
+
+    if (!(imc = free_user_handle( handle, NTUSER_OBJ_IMC ))) return FALSE;
+    if (imc == OBJ_OTHER_PROCESS)
+    {
+        FIXME( "other process handle %p\n", handle );
+        return FALSE;
+    }
+    free( imc );
+    return TRUE;
+}
+
+/******************************************************************************
+ *           NtUserUpdateInputContext   (win32u.@)
+ */
+BOOL WINAPI NtUserUpdateInputContext( HIMC handle, UINT attr, UINT_PTR value )
+{
+    struct imc *imc;
+    BOOL ret = TRUE;
+
+    TRACE( "%p %u %lx\n", handle, attr, value );
+
+    if (!(imc = get_imc_ptr( handle ))) return FALSE;
+
+    switch (attr)
+    {
+    case NtUserInputContextClientPtr:
+        imc->client_ptr = value;
+        break;
+
+    default:
+        FIXME( "unknown attr %u\n", attr );
+        ret = FALSE;
+    };
+
+    release_imc_ptr( imc );
+    return ret;
+}
+
+/******************************************************************************
+ *           NtUserQueryInputContext   (win32u.@)
+ */
+UINT_PTR WINAPI NtUserQueryInputContext( HIMC handle, UINT attr )
+{
+    struct imc *imc;
+    UINT_PTR ret;
+
+    if (!(imc = get_imc_ptr( handle ))) return FALSE;
+
+    switch (attr)
+    {
+    case NtUserInputContextClientPtr:
+        ret = imc->client_ptr;
+        break;
+
+    case NtUserInputContextThreadId:
+        ret = imc->thread_id;
+        break;
+
+    default:
+        FIXME( "unknown attr %u\n", attr );
+        ret = 0;
+    };
+
+    release_imc_ptr( imc );
+    return ret;
+}

dlls/win32u/syscall.c

@@ -111,9 +111,11 @@ static void * const syscalls[] =
     NtUserCopyAcceleratorTable,
     NtUserCreateAcceleratorTable,
     NtUserCreateDesktopEx,
+    NtUserCreateInputContext,
     NtUserCreateWindowStation,
     NtUserDeleteMenu,
     NtUserDestroyAcceleratorTable,
+    NtUserDestroyInputContext,
     NtUserEndMenu,
     NtUserFindExistingCursorIcon,
     NtUserFindWindowEx,
@@ -163,6 +165,7 @@ static void * const syscalls[] =
     NtUserOpenDesktop,
     NtUserOpenInputDesktop,
     NtUserOpenWindowStation,
+    NtUserQueryInputContext,
     NtUserRegisterRawInputDevices,
     NtUserRemoveClipboardFormatListener,
     NtUserRemoveMenu,
@@ -183,6 +186,7 @@ static void * const syscalls[] =
     NtUserThunkedMenuItemInfo,
     NtUserUnhookWinEvent,
     NtUserUnhookWindowsHookEx,
+    NtUserUpdateInputContext,
     NtUserWindowFromDC,
 };
 

dlls/win32u/win32u.spec

@@ -811,7 +811,7 @@
 @ stub NtUserCreateDCompositionHwndTarget
 @ stdcall -syscall NtUserCreateDesktopEx(ptr ptr ptr long long long)
 @ stub NtUserCreateEmptyCursorObject
-@ stub NtUserCreateInputContext
+@ stdcall -syscall NtUserCreateInputContext(ptr)
 @ stub NtUserCreateLocalMemHandle
 @ stub NtUserCreatePalmRejectionDelayZone
 @ stdcall NtUserCreateWindowEx(long ptr ptr ptr long long long long long long long long ptr long long long long)
@@ -831,7 +831,7 @@
 @ stub NtUserDestroyActivationObject
 @ stdcall NtUserDestroyCursor(long long)
 @ stub NtUserDestroyDCompositionHwndTarget
-@ stub NtUserDestroyInputContext
+@ stdcall -syscall NtUserDestroyInputContext(long)
 @ stdcall NtUserDestroyMenu(long)
 @ stub NtUserDestroyPalmRejectionDelayZone
 @ stdcall NtUserDestroyWindow(long)
@@ -1114,7 +1114,7 @@
 @ stub NtUserQueryBSDRWindow
 @ stub NtUserQueryDisplayConfig
 @ stub NtUserQueryInformationThread
-@ stub NtUserQueryInputContext
+@ stdcall -syscall NtUserQueryInputContext(long long)
 @ stub NtUserQuerySendMessage
 @ stub NtUserQueryWindow
 @ stub NtUserRealChildWindowFromPoint
@@ -1293,7 +1293,7 @@
 @ stub NtUserUnregisterSessionPort
 @ stub NtUserUnregisterUserApiHook
 @ stub NtUserUpdateDefaultDesktopThumbnail
-@ stub NtUserUpdateInputContext
+@ stdcall -syscall NtUserUpdateInputContext(long long ptr)
 @ stub NtUserUpdateInstance
 @ stdcall NtUserUpdateLayeredWindow(long long ptr ptr long ptr long ptr long ptr)
 @ stub NtUserUpdatePerUserSystemParameters

dlls/wow64win/syscall.h

@@ -98,9 +98,11 @@
     SYSCALL_ENTRY( NtUserCopyAcceleratorTable ) \
     SYSCALL_ENTRY( NtUserCreateAcceleratorTable ) \
     SYSCALL_ENTRY( NtUserCreateDesktopEx ) \
+    SYSCALL_ENTRY( NtUserCreateInputContext ) \
     SYSCALL_ENTRY( NtUserCreateWindowStation ) \
     SYSCALL_ENTRY( NtUserDeleteMenu ) \
     SYSCALL_ENTRY( NtUserDestroyAcceleratorTable ) \
+    SYSCALL_ENTRY( NtUserDestroyInputContext ) \
     SYSCALL_ENTRY( NtUserEndMenu ) \
     SYSCALL_ENTRY( NtUserFindExistingCursorIcon ) \
     SYSCALL_ENTRY( NtUserFindWindowEx ) \
@@ -150,6 +152,7 @@
     SYSCALL_ENTRY( NtUserOpenDesktop ) \
     SYSCALL_ENTRY( NtUserOpenInputDesktop ) \
     SYSCALL_ENTRY( NtUserOpenWindowStation ) \
+    SYSCALL_ENTRY( NtUserQueryInputContext ) \
     SYSCALL_ENTRY( NtUserRegisterRawInputDevices ) \
     SYSCALL_ENTRY( NtUserRemoveClipboardFormatListener ) \
     SYSCALL_ENTRY( NtUserRemoveMenu ) \
@@ -170,6 +173,7 @@
     SYSCALL_ENTRY( NtUserThunkedMenuItemInfo ) \
     SYSCALL_ENTRY( NtUserUnhookWinEvent ) \
     SYSCALL_ENTRY( NtUserUnhookWindowsHookEx ) \
+    SYSCALL_ENTRY( NtUserUpdateInputContext ) \
     SYSCALL_ENTRY( NtUserWindowFromDC )
 
 #endif /* __WOW64WIN_SYSCALL_H */

dlls/wow64win/user.c

@@ -226,6 +226,13 @@ NTSTATUS WINAPI wow64_NtUserCreateDesktopEx( UINT *args )
     return HandleToUlong( ret );
 }
 
+NTSTATUS WINAPI wow64_NtUserCreateInputContext( UINT *args )
+{
+    UINT_PTR client_ptr = get_ulong( &args );
+
+    return HandleToUlong( NtUserCreateInputContext( client_ptr ));
+}
+
 NTSTATUS WINAPI wow64_NtUserCreateWindowStation( UINT *args )
 {
     OBJECT_ATTRIBUTES32 *attr32 = get_ptr( &args );
@@ -258,6 +265,13 @@ NTSTATUS WINAPI wow64_NtUserDestroyAcceleratorTable( UINT *args )
     return NtUserDestroyAcceleratorTable( handle );
 }
 
+NTSTATUS WINAPI wow64_NtUserDestroyInputContext( UINT *args )
+{
+    HIMC handle = get_handle( &args );
+
+    return NtUserDestroyInputContext( handle );
+}
+
 NTSTATUS WINAPI wow64_NtUserEndMenu( UINT *args )
 {
     return NtUserEndMenu();
@@ -848,6 +862,14 @@ NTSTATUS WINAPI wow64_NtUserOpenWindowStation( UINT *args )
     return HandleToUlong( NtUserOpenWindowStation( objattr_32to64( &attr, attr32 ), access ));
 }
 
+NTSTATUS WINAPI wow64_NtUserQueryInputContext( UINT *args )
+{
+    HIMC handle = get_handle( &args );
+    UINT attr = get_ulong( &args );
+
+    return NtUserQueryInputContext( handle, attr );
+}
+
 NTSTATUS WINAPI wow64_NtUserRegisterRawInputDevices( UINT *args )
 {
     const RAWINPUTDEVICE32 *devices32 = get_ptr( &args );
@@ -1105,6 +1127,15 @@ NTSTATUS WINAPI wow64_NtUserUnhookWindowsHookEx( UINT *args )
     return NtUserUnhookWindowsHookEx( handle );
 }
 
+NTSTATUS WINAPI wow64_NtUserUpdateInputContext( UINT *args )
+{
+    HIMC handle = get_handle( &args );
+    UINT attr = get_ulong( &args );
+    UINT_PTR value = get_ulong( &args );
+
+    return NtUserUpdateInputContext( handle, attr, value );
+}
+
 NTSTATUS WINAPI wow64_NtUserWindowFromDC( UINT *args )
 {
     HDC hdc = get_handle( &args );

include/ntuser.h

@@ -21,6 +21,7 @@
 
 #include <winuser.h>
 #include <wingdi.h>
+#include <imm.h>
 #include <winternl.h>
 
 /* KernelCallbackTable codes, not compatible with Windows */
@@ -265,6 +266,7 @@ struct send_message_callback_params
 #define NTUSER_OBJ_WINPOS   0x04
 #define NTUSER_OBJ_ACCEL    0x08
 #define NTUSER_OBJ_HOOK     0x0f
+#define NTUSER_OBJ_IMC      0x11
 
 /* NtUserScrollWindowEx flag */
 #define SW_NODCCACHE  0x8000
@@ -358,6 +360,13 @@ struct draw_scroll_bar_params
     BOOL vertical;
 };
 
+/* NtUserUpdateInputContext param, not compatible with Window */
+enum input_context_attr
+{
+    NtUserInputContextClientPtr,
+    NtUserInputContextThreadId,
+};
+
 /* internal messages codes */
 enum wine_internal_message
 {
@@ -558,6 +567,7 @@ BOOL    WINAPI NtUserCreateCaret( HWND hwnd, HBITMAP bitmap, int width, int heig
 HDESK   WINAPI NtUserCreateDesktopEx( OBJECT_ATTRIBUTES *attr, UNICODE_STRING *device,
                                       DEVMODEW *devmode, DWORD flags, ACCESS_MASK access,
                                       ULONG heap_size );
+HIMC    WINAPI NtUserCreateInputContext( UINT_PTR client_ptr );
 HWND    WINAPI NtUserCreateWindowEx( DWORD ex_style, UNICODE_STRING *class_name,
                                      UNICODE_STRING *version, UNICODE_STRING *window_name,
                                      DWORD style, INT x, INT y, INT cx, INT cy,
@@ -570,6 +580,7 @@ HDWP    WINAPI NtUserDeferWindowPosAndBand( HDWP hdwp, HWND hwnd, HWND after, IN
 BOOL    WINAPI NtUserDeleteMenu( HMENU menu, UINT id, UINT flags );
 BOOL    WINAPI NtUserDestroyAcceleratorTable( HACCEL handle );
 BOOL    WINAPI NtUserDestroyCursor( HCURSOR cursor, ULONG arg );
+BOOL    WINAPI NtUserDestroyInputContext( HIMC handle );
 BOOL    WINAPI NtUserDestroyMenu( HMENU menu );
 BOOL    WINAPI NtUserDestroyWindow( HWND hwnd );
 LRESULT WINAPI NtUserDispatchMessage( const MSG *msg );
@@ -686,6 +697,7 @@ HDESK   WINAPI NtUserOpenInputDesktop( DWORD flags, BOOL inherit, ACCESS_MASK ac
 BOOL    WINAPI NtUserPeekMessage( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags );
 BOOL    WINAPI NtUserPostMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam );
 BOOL    WINAPI NtUserPostThreadMessage( DWORD thread, UINT msg, WPARAM wparam, LPARAM lparam );
+UINT_PTR WINAPI NtUserQueryInputContext( HIMC handle, UINT attr );
 BOOL    WINAPI NtUserRedrawWindow( HWND hwnd, const RECT *rect, HRGN hrgn, UINT flags );
 ATOM    WINAPI NtUserRegisterClassExWOW( const WNDCLASSEXW *wc, UNICODE_STRING *name, UNICODE_STRING *version,
                                          struct client_menu_name *client_menu_name, DWORD fnid, DWORD flags,
@@ -763,6 +775,7 @@ BOOL    WINAPI NtUserUnhookWindowsHookEx( HHOOK handle );
 BOOL    WINAPI NtUserUnregisterClass( UNICODE_STRING *name, HINSTANCE instance,
                                       struct client_menu_name *client_menu_name );
 BOOL    WINAPI NtUserUnregisterHotKey( HWND hwnd, INT id );
+BOOL    WINAPI NtUserUpdateInputContext( HIMC handle, UINT attr, UINT_PTR value );
 BOOL    WINAPI NtUserUpdateLayeredWindow( HWND hwnd, HDC hdc_dst, const POINT *pts_dst, const SIZE *size,
                                           HDC hdc_src, const POINT *pts_src, COLORREF key,
                                           const BLENDFUNCTION *blend, DWORD flags, const RECT *dirty );