user32/tests: Mark a couple of painting messages as optional.
[wine] / dlls / user32 / driver.c
1 /*
2  * USER driver support
3  *
4  * Copyright 2000, 2005 Alexandre Julliard
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19  */
20
21 #include <stdarg.h>
22 #include <stdio.h>
23 #include "windef.h"
24 #include "winbase.h"
25 #include "winuser.h"
26 #include "wine/debug.h"
27
28 #include "user_private.h"
29
30 static USER_DRIVER null_driver, lazy_load_driver;
31
32 const USER_DRIVER *USER_Driver = &lazy_load_driver;
33 static DWORD driver_load_error;
34
35 /* load the graphics driver */
36 static const USER_DRIVER *load_driver(void)
37 {
38     char buffer[MAX_PATH], libname[32], *name, *next;
39     HKEY hkey;
40     void *ptr;
41     HMODULE graphics_driver;
42     USER_DRIVER *driver, *prev;
43
44     strcpy( buffer, "x11" );  /* default value */
45     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
46     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
47     {
48         DWORD type, count = sizeof(buffer);
49         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
50         RegCloseKey( hkey );
51     }
52
53     name = buffer;
54     while (name)
55     {
56         next = strchr( name, ',' );
57         if (next) *next++ = 0;
58
59         snprintf( libname, sizeof(libname), "wine%s.drv", name );
60         if ((graphics_driver = LoadLibraryA( libname )) != 0) break;
61         name = next;
62     }
63
64     if (!graphics_driver)
65         driver_load_error = GetLastError();
66
67     driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver) );
68     *driver = null_driver;
69
70     if (graphics_driver)
71     {
72 #define GET_USER_FUNC(name) \
73     do { if ((ptr = GetProcAddress( graphics_driver, #name ))) driver->p##name = ptr; } while(0)
74
75         GET_USER_FUNC(ActivateKeyboardLayout);
76         GET_USER_FUNC(Beep);
77         GET_USER_FUNC(GetAsyncKeyState);
78         GET_USER_FUNC(GetKeyNameText);
79         GET_USER_FUNC(GetKeyboardLayout);
80         GET_USER_FUNC(GetKeyboardLayoutName);
81         GET_USER_FUNC(LoadKeyboardLayout);
82         GET_USER_FUNC(MapVirtualKeyEx);
83         GET_USER_FUNC(SendInput);
84         GET_USER_FUNC(ToUnicodeEx);
85         GET_USER_FUNC(UnloadKeyboardLayout);
86         GET_USER_FUNC(VkKeyScanEx);
87         GET_USER_FUNC(SetCursor);
88         GET_USER_FUNC(GetCursorPos);
89         GET_USER_FUNC(SetCursorPos);
90         GET_USER_FUNC(ClipCursor);
91         GET_USER_FUNC(GetScreenSaveActive);
92         GET_USER_FUNC(SetScreenSaveActive);
93         GET_USER_FUNC(AcquireClipboard);
94         GET_USER_FUNC(EmptyClipboard);
95         GET_USER_FUNC(SetClipboardData);
96         GET_USER_FUNC(GetClipboardData);
97         GET_USER_FUNC(CountClipboardFormats);
98         GET_USER_FUNC(EnumClipboardFormats);
99         GET_USER_FUNC(IsClipboardFormatAvailable);
100         GET_USER_FUNC(RegisterClipboardFormat);
101         GET_USER_FUNC(GetClipboardFormatName);
102         GET_USER_FUNC(EndClipboardUpdate);
103         GET_USER_FUNC(ChangeDisplaySettingsEx);
104         GET_USER_FUNC(EnumDisplayMonitors);
105         GET_USER_FUNC(EnumDisplaySettingsEx);
106         GET_USER_FUNC(GetMonitorInfo);
107         GET_USER_FUNC(CreateDesktopWindow);
108         GET_USER_FUNC(CreateWindow);
109         GET_USER_FUNC(DestroyWindow);
110         GET_USER_FUNC(GetDC);
111         GET_USER_FUNC(MsgWaitForMultipleObjectsEx);
112         GET_USER_FUNC(ReleaseDC);
113         GET_USER_FUNC(ScrollDC);
114         GET_USER_FUNC(SetCapture);
115         GET_USER_FUNC(SetFocus);
116         GET_USER_FUNC(SetLayeredWindowAttributes);
117         GET_USER_FUNC(SetParent);
118         GET_USER_FUNC(SetWindowRgn);
119         GET_USER_FUNC(SetWindowIcon);
120         GET_USER_FUNC(SetWindowStyle);
121         GET_USER_FUNC(SetWindowText);
122         GET_USER_FUNC(ShowWindow);
123         GET_USER_FUNC(SysCommand);
124         GET_USER_FUNC(WindowMessage);
125         GET_USER_FUNC(WindowPosChanging);
126         GET_USER_FUNC(WindowPosChanged);
127 #undef GET_USER_FUNC
128     }
129
130     prev = InterlockedCompareExchangePointer( (void **)&USER_Driver, driver, &lazy_load_driver );
131     if (prev != &lazy_load_driver)
132     {
133         /* another thread beat us to it */
134         HeapFree( GetProcessHeap(), 0, driver );
135         FreeLibrary( graphics_driver );
136         driver = prev;
137     }
138     return driver;
139 }
140
141 /* unload the graphics driver on process exit */
142 void USER_unload_driver(void)
143 {
144     USER_DRIVER *prev;
145     /* make sure we don't try to call the driver after it has been detached */
146     prev = InterlockedExchangePointer( (void **)&USER_Driver, &null_driver );
147     if (prev != &lazy_load_driver && prev != &null_driver)
148         HeapFree( GetProcessHeap(), 0, prev );
149 }
150
151
152 /**********************************************************************
153  * Null user driver
154  *
155  * These are fallbacks for entry points that are not implemented in the real driver.
156  */
157
158 static HKL CDECL nulldrv_ActivateKeyboardLayout( HKL layout, UINT flags )
159 {
160     return 0;
161 }
162
163 static void CDECL nulldrv_Beep(void)
164 {
165 }
166
167 static SHORT CDECL nulldrv_GetAsyncKeyState( INT key )
168 {
169     return 0;
170 }
171
172 static INT CDECL nulldrv_GetKeyNameText( LONG lparam, LPWSTR buffer, INT size )
173 {
174     return 0;
175 }
176
177 static HKL CDECL nulldrv_GetKeyboardLayout( DWORD layout )
178 {
179     return 0;
180 }
181
182 static BOOL CDECL nulldrv_GetKeyboardLayoutName( LPWSTR name )
183 {
184     return FALSE;
185 }
186
187 static HKL CDECL nulldrv_LoadKeyboardLayout( LPCWSTR name, UINT flags )
188 {
189     return 0;
190 }
191
192 static UINT CDECL nulldrv_MapVirtualKeyEx( UINT code, UINT type, HKL layout )
193 {
194     return 0;
195 }
196
197 static UINT CDECL nulldrv_SendInput( UINT count, LPINPUT inputs, int size )
198 {
199     return 0;
200 }
201
202 static INT CDECL nulldrv_ToUnicodeEx( UINT virt, UINT scan, const BYTE *state, LPWSTR str,
203                                       int size, UINT flags, HKL layout )
204 {
205     return 0;
206 }
207
208 static BOOL CDECL nulldrv_UnloadKeyboardLayout( HKL layout )
209 {
210     return 0;
211 }
212
213 static SHORT CDECL nulldrv_VkKeyScanEx( WCHAR ch, HKL layout )
214 {
215     return -1;
216 }
217
218 static void CDECL nulldrv_SetCursor( struct tagCURSORICONINFO *info )
219 {
220 }
221
222 static BOOL CDECL nulldrv_GetCursorPos( LPPOINT pt )
223 {
224     return FALSE;
225 }
226
227 static BOOL CDECL nulldrv_SetCursorPos( INT x, INT y )
228 {
229     return FALSE;
230 }
231
232 static BOOL CDECL nulldrv_ClipCursor( LPCRECT clip )
233 {
234     return FALSE;
235 }
236
237 static BOOL CDECL nulldrv_GetScreenSaveActive(void)
238 {
239     return FALSE;
240 }
241
242 static void CDECL nulldrv_SetScreenSaveActive( BOOL on )
243 {
244 }
245
246 static INT CDECL nulldrv_AcquireClipboard( HWND hwnd )
247 {
248     return 0;
249 }
250
251 static BOOL CDECL nulldrv_CountClipboardFormats(void)
252 {
253     return 0;
254 }
255
256 static void CDECL nulldrv_EmptyClipboard( BOOL keepunowned )
257 {
258 }
259
260 static void CDECL nulldrv_EndClipboardUpdate(void)
261 {
262 }
263
264 static UINT CDECL nulldrv_EnumClipboardFormats( UINT format )
265 {
266     return 0;
267 }
268
269 static BOOL CDECL nulldrv_GetClipboardData( UINT format, HANDLE16 *h16, HANDLE *h32 )
270 {
271     return FALSE;
272 }
273
274 static INT CDECL nulldrv_GetClipboardFormatName( UINT format, LPWSTR buffer, UINT len )
275 {
276     return FALSE;
277 }
278
279 static BOOL CDECL nulldrv_IsClipboardFormatAvailable( UINT format )
280 {
281     return FALSE;
282 }
283
284 static UINT CDECL nulldrv_RegisterClipboardFormat( LPCWSTR name )
285 {
286     return 0;
287 }
288
289 static BOOL CDECL nulldrv_SetClipboardData( UINT format, HANDLE16 h16, HANDLE h32, BOOL owner )
290 {
291     return FALSE;
292 }
293
294 static LONG CDECL nulldrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd,
295                                              DWORD flags, LPVOID lparam )
296 {
297     return DISP_CHANGE_FAILED;
298 }
299
300 static BOOL CDECL nulldrv_EnumDisplayMonitors( HDC hdc, LPRECT rect, MONITORENUMPROC proc, LPARAM lp )
301 {
302     return FALSE;
303 }
304
305 static BOOL CDECL nulldrv_EnumDisplaySettingsEx( LPCWSTR name, DWORD num, LPDEVMODEW mode, DWORD flags )
306 {
307     return FALSE;
308 }
309
310 static BOOL CDECL nulldrv_GetMonitorInfo( HMONITOR handle, LPMONITORINFO info )
311 {
312     return FALSE;
313 }
314
315 static BOOL CDECL nulldrv_CreateDesktopWindow( HWND hwnd )
316 {
317     return TRUE;
318 }
319
320 static BOOL CDECL nulldrv_CreateWindow( HWND hwnd )
321 {
322     static int warned;
323     if (warned++)
324         return FALSE;
325
326     MESSAGE( "Application tried to create a window, but no driver could be loaded.\n");
327     switch (driver_load_error)
328     {
329     case ERROR_MOD_NOT_FOUND:
330         MESSAGE( "The X11 driver is missing.  Check your build!\n" );
331         break;
332     case ERROR_DLL_INIT_FAILED:
333         MESSAGE( "Make sure that your X server is running and that $DISPLAY is set correctly.\n" );
334         break;
335     default:
336         MESSAGE( "Unknown error (%d).\n", driver_load_error );
337     }
338
339     return FALSE;
340 }
341
342 static void CDECL nulldrv_DestroyWindow( HWND hwnd )
343 {
344 }
345
346 static void CDECL nulldrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
347                                  const RECT *top_rect, DWORD flags )
348 {
349 }
350
351 static DWORD CDECL nulldrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
352                                                         DWORD mask, DWORD flags )
353 {
354     return WaitForMultipleObjectsEx( count, handles, flags & MWMO_WAITALL,
355                                      timeout, flags & MWMO_ALERTABLE );
356 }
357
358 static void CDECL nulldrv_ReleaseDC( HWND hwnd, HDC hdc )
359 {
360 }
361
362 static BOOL CDECL nulldrv_ScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
363                                     HRGN hrgn, LPRECT update )
364 {
365     return FALSE;
366 }
367
368 static void CDECL nulldrv_SetCapture( HWND hwnd, UINT flags )
369 {
370 }
371
372 static void CDECL nulldrv_SetFocus( HWND hwnd )
373 {
374 }
375
376 static void CDECL nulldrv_SetLayeredWindowAttributes( HWND hwnd, COLORREF key, BYTE alpha, DWORD flags )
377 {
378 }
379
380 static void CDECL nulldrv_SetParent( HWND hwnd, HWND parent, HWND old_parent )
381 {
382 }
383
384 static int CDECL nulldrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
385 {
386     return 1;
387 }
388
389 static void CDECL nulldrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
390 {
391 }
392
393 static void CDECL nulldrv_SetWindowStyle( HWND hwnd, INT offset, STYLESTRUCT *style )
394 {
395 }
396
397 static void CDECL nulldrv_SetWindowText( HWND hwnd, LPCWSTR text )
398 {
399 }
400
401 static UINT CDECL nulldrv_ShowWindow( HWND hwnd, INT cmd, RECT *rect, UINT swp )
402 {
403     return swp;
404 }
405
406 static LRESULT CDECL nulldrv_SysCommand( HWND hwnd, WPARAM wparam, LPARAM lparam )
407 {
408     return -1;
409 }
410
411 static LRESULT CDECL nulldrv_WindowMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
412 {
413     return 0;
414 }
415
416 static void CDECL nulldrv_WindowPosChanging( HWND hwnd, HWND insert_after, UINT swp_flags,
417                                              const RECT *window_rect, const RECT *client_rect,
418                                              RECT *visible_rect )
419 {
420 }
421
422 static void CDECL nulldrv_WindowPosChanged( HWND hwnd, HWND insert_after, UINT swp_flags,
423                                             const RECT *window_rect, const RECT *client_rect,
424                                             const RECT *visible_rect, const RECT *valid_rects )
425 {
426 }
427
428 static USER_DRIVER null_driver =
429 {
430     /* keyboard functions */
431     nulldrv_ActivateKeyboardLayout,
432     nulldrv_Beep,
433     nulldrv_GetAsyncKeyState,
434     nulldrv_GetKeyNameText,
435     nulldrv_GetKeyboardLayout,
436     nulldrv_GetKeyboardLayoutName,
437     nulldrv_LoadKeyboardLayout,
438     nulldrv_MapVirtualKeyEx,
439     nulldrv_SendInput,
440     nulldrv_ToUnicodeEx,
441     nulldrv_UnloadKeyboardLayout,
442     nulldrv_VkKeyScanEx,
443     /* mouse functions */
444     nulldrv_SetCursor,
445     nulldrv_GetCursorPos,
446     nulldrv_SetCursorPos,
447     nulldrv_ClipCursor,
448     /* screen saver functions */
449     nulldrv_GetScreenSaveActive,
450     nulldrv_SetScreenSaveActive,
451     /* clipboard functions */
452     nulldrv_AcquireClipboard,
453     nulldrv_CountClipboardFormats,
454     nulldrv_EmptyClipboard,
455     nulldrv_EndClipboardUpdate,
456     nulldrv_EnumClipboardFormats,
457     nulldrv_GetClipboardData,
458     nulldrv_GetClipboardFormatName,
459     nulldrv_IsClipboardFormatAvailable,
460     nulldrv_RegisterClipboardFormat,
461     nulldrv_SetClipboardData,
462     /* display modes */
463     nulldrv_ChangeDisplaySettingsEx,
464     nulldrv_EnumDisplayMonitors,
465     nulldrv_EnumDisplaySettingsEx,
466     nulldrv_GetMonitorInfo,
467     /* windowing functions */
468     nulldrv_CreateDesktopWindow,
469     nulldrv_CreateWindow,
470     nulldrv_DestroyWindow,
471     nulldrv_GetDC,
472     nulldrv_MsgWaitForMultipleObjectsEx,
473     nulldrv_ReleaseDC,
474     nulldrv_ScrollDC,
475     nulldrv_SetCapture,
476     nulldrv_SetFocus,
477     nulldrv_SetLayeredWindowAttributes,
478     nulldrv_SetParent,
479     nulldrv_SetWindowRgn,
480     nulldrv_SetWindowIcon,
481     nulldrv_SetWindowStyle,
482     nulldrv_SetWindowText,
483     nulldrv_ShowWindow,
484     nulldrv_SysCommand,
485     nulldrv_WindowMessage,
486     nulldrv_WindowPosChanging,
487     nulldrv_WindowPosChanged
488 };
489
490
491 /**********************************************************************
492  * Lazy loading user driver
493  *
494  * Initial driver used before another driver is loaded.
495  * Each entry point simply loads the real driver and chains to it.
496  */
497
498 static HKL CDECL loaderdrv_ActivateKeyboardLayout( HKL layout, UINT flags )
499 {
500     return load_driver()->pActivateKeyboardLayout( layout, flags );
501 }
502
503 static void CDECL loaderdrv_Beep(void)
504 {
505     load_driver()->pBeep();
506 }
507
508 static SHORT CDECL loaderdrv_GetAsyncKeyState( INT key )
509 {
510     return load_driver()->pGetAsyncKeyState( key );
511 }
512
513 static INT CDECL loaderdrv_GetKeyNameText( LONG lparam, LPWSTR buffer, INT size )
514 {
515     return load_driver()->pGetKeyNameText( lparam, buffer, size );
516 }
517
518 static HKL CDECL loaderdrv_GetKeyboardLayout( DWORD layout )
519 {
520     return load_driver()->pGetKeyboardLayout( layout );
521 }
522
523 static BOOL CDECL loaderdrv_GetKeyboardLayoutName( LPWSTR name )
524 {
525     return load_driver()->pGetKeyboardLayoutName( name );
526 }
527
528 static HKL CDECL loaderdrv_LoadKeyboardLayout( LPCWSTR name, UINT flags )
529 {
530     return load_driver()->pLoadKeyboardLayout( name, flags );
531 }
532
533 static UINT CDECL loaderdrv_MapVirtualKeyEx( UINT code, UINT type, HKL layout )
534 {
535     return load_driver()->pMapVirtualKeyEx( code, type, layout );
536 }
537
538 static UINT CDECL loaderdrv_SendInput( UINT count, LPINPUT inputs, int size )
539 {
540     return load_driver()->pSendInput( count, inputs, size );
541 }
542
543 static INT CDECL loaderdrv_ToUnicodeEx( UINT virt, UINT scan, const BYTE *state, LPWSTR str,
544                                   int size, UINT flags, HKL layout )
545 {
546     return load_driver()->pToUnicodeEx( virt, scan, state, str, size, flags, layout );
547 }
548
549 static BOOL CDECL loaderdrv_UnloadKeyboardLayout( HKL layout )
550 {
551     return load_driver()->pUnloadKeyboardLayout( layout );
552 }
553
554 static SHORT CDECL loaderdrv_VkKeyScanEx( WCHAR ch, HKL layout )
555 {
556     return load_driver()->pVkKeyScanEx( ch, layout );
557 }
558
559 static void CDECL loaderdrv_SetCursor( struct tagCURSORICONINFO *info )
560 {
561     load_driver()->pSetCursor( info );
562 }
563
564 static BOOL CDECL loaderdrv_GetCursorPos( LPPOINT pt )
565 {
566     return load_driver()->pGetCursorPos( pt );
567 }
568
569 static BOOL CDECL loaderdrv_SetCursorPos( INT x, INT y )
570 {
571     return load_driver()->pSetCursorPos( x, y );
572 }
573
574 static BOOL CDECL loaderdrv_ClipCursor( LPCRECT clip )
575 {
576     return load_driver()->pClipCursor( clip );
577 }
578
579 static BOOL CDECL loaderdrv_GetScreenSaveActive(void)
580 {
581     return load_driver()->pGetScreenSaveActive();
582 }
583
584 static void CDECL loaderdrv_SetScreenSaveActive( BOOL on )
585 {
586     load_driver()->pSetScreenSaveActive( on );
587 }
588
589 static INT CDECL loaderdrv_AcquireClipboard( HWND hwnd )
590 {
591     return load_driver()->pAcquireClipboard( hwnd );
592 }
593
594 static BOOL CDECL loaderdrv_CountClipboardFormats(void)
595 {
596     return load_driver()->pCountClipboardFormats();
597 }
598
599 static void CDECL loaderdrv_EmptyClipboard( BOOL keepunowned )
600 {
601     load_driver()->pEmptyClipboard( keepunowned );
602 }
603
604 static void CDECL loaderdrv_EndClipboardUpdate(void)
605 {
606     load_driver()->pEndClipboardUpdate();
607 }
608
609 static UINT CDECL loaderdrv_EnumClipboardFormats( UINT format )
610 {
611     return load_driver()->pEnumClipboardFormats( format );
612 }
613
614 static BOOL CDECL loaderdrv_GetClipboardData( UINT format, HANDLE16 *h16, HANDLE *h32 )
615 {
616     return load_driver()->pGetClipboardData( format, h16, h32 );
617 }
618
619 static INT CDECL loaderdrv_GetClipboardFormatName( UINT format, LPWSTR buffer, UINT len )
620 {
621     return load_driver()->pGetClipboardFormatName( format, buffer, len );
622 }
623
624 static BOOL CDECL loaderdrv_IsClipboardFormatAvailable( UINT format )
625 {
626     return load_driver()->pIsClipboardFormatAvailable( format );
627 }
628
629 static UINT CDECL loaderdrv_RegisterClipboardFormat( LPCWSTR name )
630 {
631     return load_driver()->pRegisterClipboardFormat( name );
632 }
633
634 static BOOL CDECL loaderdrv_SetClipboardData( UINT format, HANDLE16 h16, HANDLE h32, BOOL owner )
635 {
636     return load_driver()->pSetClipboardData( format, h16, h32, owner );
637 }
638
639 static LONG CDECL loaderdrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd,
640                                                      DWORD flags, LPVOID lparam )
641 {
642     return load_driver()->pChangeDisplaySettingsEx( name, mode, hwnd, flags, lparam );
643 }
644
645 static BOOL CDECL loaderdrv_EnumDisplayMonitors( HDC hdc, LPRECT rect, MONITORENUMPROC proc, LPARAM lp )
646 {
647     return load_driver()->pEnumDisplayMonitors( hdc, rect, proc, lp );
648 }
649
650 static BOOL CDECL loaderdrv_EnumDisplaySettingsEx( LPCWSTR name, DWORD num, LPDEVMODEW mode, DWORD flags )
651 {
652     return load_driver()->pEnumDisplaySettingsEx( name, num, mode, flags );
653 }
654
655 static BOOL CDECL loaderdrv_GetMonitorInfo( HMONITOR handle, LPMONITORINFO info )
656 {
657     return load_driver()->pGetMonitorInfo( handle, info );
658 }
659
660 static BOOL CDECL loaderdrv_CreateDesktopWindow( HWND hwnd )
661 {
662     return load_driver()->pCreateDesktopWindow( hwnd );
663 }
664
665 static BOOL CDECL loaderdrv_CreateWindow( HWND hwnd )
666 {
667     return load_driver()->pCreateWindow( hwnd );
668 }
669
670 static void CDECL loaderdrv_DestroyWindow( HWND hwnd )
671 {
672     load_driver()->pDestroyWindow( hwnd );
673 }
674
675 static void CDECL loaderdrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
676                                    const RECT *top_rect, DWORD flags )
677 {
678     load_driver()->pGetDC( hdc, hwnd, top_win, win_rect, top_rect, flags );
679 }
680
681 static DWORD CDECL loaderdrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
682                                                           DWORD mask, DWORD flags )
683 {
684     return load_driver()->pMsgWaitForMultipleObjectsEx( count, handles, timeout, mask, flags );
685 }
686
687 static void CDECL loaderdrv_ReleaseDC( HWND hwnd, HDC hdc )
688 {
689     load_driver()->pReleaseDC( hwnd, hdc );
690 }
691
692 static BOOL CDECL loaderdrv_ScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
693                                       HRGN hrgn, LPRECT update )
694 {
695     return load_driver()->pScrollDC( hdc, dx, dy, scroll, clip, hrgn, update );
696 }
697
698 static void CDECL loaderdrv_SetCapture( HWND hwnd, UINT flags )
699 {
700     load_driver()->pSetCapture( hwnd, flags );
701 }
702
703 static void CDECL loaderdrv_SetFocus( HWND hwnd )
704 {
705     load_driver()->pSetFocus( hwnd );
706 }
707
708 static void CDECL loaderdrv_SetLayeredWindowAttributes( HWND hwnd, COLORREF key, BYTE alpha, DWORD flags )
709 {
710     load_driver()->pSetLayeredWindowAttributes( hwnd, key, alpha, flags );
711 }
712
713 static void CDECL loaderdrv_SetParent( HWND hwnd, HWND parent, HWND old_parent )
714 {
715     load_driver()->pSetParent( hwnd, parent, old_parent );
716 }
717
718 static int CDECL loaderdrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
719 {
720     return load_driver()->pSetWindowRgn( hwnd, hrgn, redraw );
721 }
722
723 static void CDECL loaderdrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
724 {
725     load_driver()->pSetWindowIcon( hwnd, type, icon );
726 }
727
728 static void CDECL loaderdrv_SetWindowStyle( HWND hwnd, INT offset, STYLESTRUCT *style )
729 {
730     load_driver()->pSetWindowStyle( hwnd, offset, style );
731 }
732
733 static void CDECL loaderdrv_SetWindowText( HWND hwnd, LPCWSTR text )
734 {
735     load_driver()->pSetWindowText( hwnd, text );
736 }
737
738 static UINT CDECL loaderdrv_ShowWindow( HWND hwnd, INT cmd, RECT *rect, UINT swp )
739 {
740     return load_driver()->pShowWindow( hwnd, cmd, rect, swp );
741 }
742
743 static LRESULT CDECL loaderdrv_SysCommand( HWND hwnd, WPARAM wparam, LPARAM lparam )
744 {
745     return load_driver()->pSysCommand( hwnd, wparam, lparam );
746 }
747
748 static LRESULT CDECL loaderdrv_WindowMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
749 {
750     return load_driver()->pWindowMessage( hwnd, msg, wparam, lparam );
751 }
752
753 static void CDECL loaderdrv_WindowPosChanging( HWND hwnd, HWND insert_after, UINT swp_flags,
754                                                const RECT *window_rect, const RECT *client_rect,
755                                                RECT *visible_rect )
756 {
757     load_driver()->pWindowPosChanging( hwnd, insert_after, swp_flags,
758                                        window_rect, client_rect, visible_rect );
759 }
760
761 static void CDECL loaderdrv_WindowPosChanged( HWND hwnd, HWND insert_after, UINT swp_flags,
762                                               const RECT *window_rect, const RECT *client_rect,
763                                               const RECT *visible_rect, const RECT *valid_rects )
764 {
765     load_driver()->pWindowPosChanged( hwnd, insert_after, swp_flags, window_rect,
766                                       client_rect, visible_rect, valid_rects );
767 }
768
769 static USER_DRIVER lazy_load_driver =
770 {
771     /* keyboard functions */
772     loaderdrv_ActivateKeyboardLayout,
773     loaderdrv_Beep,
774     loaderdrv_GetAsyncKeyState,
775     loaderdrv_GetKeyNameText,
776     loaderdrv_GetKeyboardLayout,
777     loaderdrv_GetKeyboardLayoutName,
778     loaderdrv_LoadKeyboardLayout,
779     loaderdrv_MapVirtualKeyEx,
780     loaderdrv_SendInput,
781     loaderdrv_ToUnicodeEx,
782     loaderdrv_UnloadKeyboardLayout,
783     loaderdrv_VkKeyScanEx,
784     /* mouse functions */
785     loaderdrv_SetCursor,
786     loaderdrv_GetCursorPos,
787     loaderdrv_SetCursorPos,
788     loaderdrv_ClipCursor,
789     /* screen saver functions */
790     loaderdrv_GetScreenSaveActive,
791     loaderdrv_SetScreenSaveActive,
792     /* clipboard functions */
793     loaderdrv_AcquireClipboard,
794     loaderdrv_CountClipboardFormats,
795     loaderdrv_EmptyClipboard,
796     loaderdrv_EndClipboardUpdate,
797     loaderdrv_EnumClipboardFormats,
798     loaderdrv_GetClipboardData,
799     loaderdrv_GetClipboardFormatName,
800     loaderdrv_IsClipboardFormatAvailable,
801     loaderdrv_RegisterClipboardFormat,
802     loaderdrv_SetClipboardData,
803     /* display modes */
804     loaderdrv_ChangeDisplaySettingsEx,
805     loaderdrv_EnumDisplayMonitors,
806     loaderdrv_EnumDisplaySettingsEx,
807     loaderdrv_GetMonitorInfo,
808     /* windowing functions */
809     loaderdrv_CreateDesktopWindow,
810     loaderdrv_CreateWindow,
811     loaderdrv_DestroyWindow,
812     loaderdrv_GetDC,
813     loaderdrv_MsgWaitForMultipleObjectsEx,
814     loaderdrv_ReleaseDC,
815     loaderdrv_ScrollDC,
816     loaderdrv_SetCapture,
817     loaderdrv_SetFocus,
818     loaderdrv_SetLayeredWindowAttributes,
819     loaderdrv_SetParent,
820     loaderdrv_SetWindowRgn,
821     loaderdrv_SetWindowIcon,
822     loaderdrv_SetWindowStyle,
823     loaderdrv_SetWindowText,
824     loaderdrv_ShowWindow,
825     loaderdrv_SysCommand,
826     loaderdrv_WindowMessage,
827     loaderdrv_WindowPosChanging,
828     loaderdrv_WindowPosChanged
829 };