user: Dead code fix (Coverity).
[wine] / dlls / user / 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 const 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     memcpy( driver, &null_driver, sizeof(*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(GetKeyboardLayoutList);
81         GET_USER_FUNC(GetKeyboardLayoutName);
82         GET_USER_FUNC(LoadKeyboardLayout);
83         GET_USER_FUNC(MapVirtualKeyEx);
84         GET_USER_FUNC(SendInput);
85         GET_USER_FUNC(ToUnicodeEx);
86         GET_USER_FUNC(UnloadKeyboardLayout);
87         GET_USER_FUNC(VkKeyScanEx);
88         GET_USER_FUNC(SetCursor);
89         GET_USER_FUNC(GetCursorPos);
90         GET_USER_FUNC(SetCursorPos);
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(EnumDisplaySettingsEx);
105         GET_USER_FUNC(CreateDesktopWindow);
106         GET_USER_FUNC(CreateWindow);
107         GET_USER_FUNC(DestroyWindow);
108         GET_USER_FUNC(GetDCEx);
109         GET_USER_FUNC(MsgWaitForMultipleObjectsEx);
110         GET_USER_FUNC(ReleaseDC);
111         GET_USER_FUNC(ScrollDC);
112         GET_USER_FUNC(SetFocus);
113         GET_USER_FUNC(SetParent);
114         GET_USER_FUNC(SetWindowPos);
115         GET_USER_FUNC(SetWindowRgn);
116         GET_USER_FUNC(SetWindowIcon);
117         GET_USER_FUNC(SetWindowStyle);
118         GET_USER_FUNC(SetWindowText);
119         GET_USER_FUNC(ShowWindow);
120         GET_USER_FUNC(SysCommandSizeMove);
121         GET_USER_FUNC(WindowFromDC);
122         GET_USER_FUNC(WindowMessage);
123 #undef GET_USER_FUNC
124     }
125
126     prev = InterlockedCompareExchangePointer( (void **)&USER_Driver, driver, (void *)&lazy_load_driver );
127     if (prev != &lazy_load_driver)
128     {
129         /* another thread beat us to it */
130         HeapFree( GetProcessHeap(), 0, driver );
131         FreeLibrary( graphics_driver );
132         driver = prev;
133     }
134     return driver;
135 }
136
137 /* unload the graphics driver on process exit */
138 void USER_unload_driver(void)
139 {
140     /* make sure we don't try to call the driver after it has been detached */
141     USER_Driver = &null_driver;
142 }
143
144
145 /**********************************************************************
146  * Null user driver
147  *
148  * These are fallbacks for entry points that are not implemented in the real driver.
149  */
150
151 static HKL nulldrv_ActivateKeyboardLayout( HKL layout, UINT flags )
152 {
153     return 0;
154 }
155
156 static void nulldrv_Beep(void)
157 {
158 }
159
160 static SHORT nulldrv_GetAsyncKeyState( INT key )
161 {
162     return 0;
163 }
164
165 static INT nulldrv_GetKeyNameText( LONG lparam, LPWSTR buffer, INT size )
166 {
167     return 0;
168 }
169
170 static HKL nulldrv_GetKeyboardLayout( DWORD layout )
171 {
172     return 0;
173 }
174
175 static UINT nulldrv_GetKeyboardLayoutList( INT count, HKL *layouts )
176 {
177     return 0;
178 }
179
180 static BOOL nulldrv_GetKeyboardLayoutName( LPWSTR name )
181 {
182     return FALSE;
183 }
184
185 static HKL nulldrv_LoadKeyboardLayout( LPCWSTR name, UINT flags )
186 {
187     return 0;
188 }
189
190 static UINT nulldrv_MapVirtualKeyEx( UINT code, UINT type, HKL layout )
191 {
192     return 0;
193 }
194
195 static UINT nulldrv_SendInput( UINT count, LPINPUT inputs, int size )
196 {
197     return 0;
198 }
199
200 static INT nulldrv_ToUnicodeEx( UINT virt, UINT scan, LPBYTE state, LPWSTR str,
201                                 int size, UINT flags, HKL layout )
202 {
203     return 0;
204 }
205
206 static BOOL nulldrv_UnloadKeyboardLayout( HKL layout )
207 {
208     return 0;
209 }
210
211 static SHORT nulldrv_VkKeyScanEx( WCHAR ch, HKL layout )
212 {
213     return -1;
214 }
215
216 static void nulldrv_SetCursor( struct tagCURSORICONINFO *info )
217 {
218 }
219
220 static BOOL nulldrv_GetCursorPos( LPPOINT pt )
221 {
222     return FALSE;
223 }
224
225 static BOOL nulldrv_SetCursorPos( INT x, INT y )
226 {
227     return FALSE;
228 }
229
230 static BOOL nulldrv_GetScreenSaveActive(void)
231 {
232     return FALSE;
233 }
234
235 static void nulldrv_SetScreenSaveActive( BOOL on )
236 {
237 }
238
239 static INT nulldrv_AcquireClipboard( HWND hwnd )
240 {
241     return 0;
242 }
243
244 static BOOL nulldrv_CountClipboardFormats(void)
245 {
246     return 0;
247 }
248
249 static void nulldrv_EmptyClipboard( BOOL keepunowned )
250 {
251 }
252
253 static void nulldrv_EndClipboardUpdate(void)
254 {
255 }
256
257 static UINT nulldrv_EnumClipboardFormats( UINT format )
258 {
259     return 0;
260 }
261
262 static BOOL nulldrv_GetClipboardData( UINT format, HANDLE16 *h16, HANDLE *h32 )
263 {
264     return FALSE;
265 }
266
267 static INT nulldrv_GetClipboardFormatName( UINT format, LPWSTR buffer, UINT len )
268 {
269     return FALSE;
270 }
271
272 static BOOL nulldrv_IsClipboardFormatAvailable( UINT format )
273 {
274     return FALSE;
275 }
276
277 static UINT nulldrv_RegisterClipboardFormat( LPCWSTR name )
278 {
279     return 0;
280 }
281
282 static BOOL nulldrv_SetClipboardData( UINT format, HANDLE16 h16, HANDLE h32, BOOL owner )
283 {
284     return FALSE;
285 }
286
287 static LONG nulldrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd,
288                                              DWORD flags, LPVOID lparam )
289 {
290     return DISP_CHANGE_FAILED;
291 }
292
293 static BOOL nulldrv_EnumDisplaySettingsEx( LPCWSTR name, DWORD num, LPDEVMODEW mode, DWORD flags )
294 {
295     return FALSE;
296 }
297
298 static BOOL nulldrv_CreateDesktopWindow( HWND hwnd )
299 {
300     return TRUE;
301 }
302
303 static BOOL nulldrv_CreateWindow( HWND hwnd, CREATESTRUCTA *cs, BOOL unicode )
304 {
305     static int warned;
306     if (warned++)
307         return FALSE;
308
309     MESSAGE( "Application tried to create a window, but no driver could be loaded.\n");
310     switch (driver_load_error)
311     {
312     case ERROR_MOD_NOT_FOUND:
313         MESSAGE( "The X11 driver is missing.  Check your build!\n" );
314         break;
315     case ERROR_DLL_INIT_FAILED:
316         MESSAGE( "Make sure that your X server is running and that $DISPLAY is set correctly.\n" );
317         break;
318     default:
319         MESSAGE( "Unknown error (%d).\n", driver_load_error );
320     }
321
322     return FALSE;
323 }
324
325 static void nulldrv_DestroyWindow( HWND hwnd )
326 {
327 }
328
329 static HDC nulldrv_GetDCEx( HWND hwnd, HRGN hrgn, DWORD flags )
330 {
331     return 0;
332 }
333
334 static DWORD nulldrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
335                                                   DWORD mask, DWORD flags )
336 {
337     return WaitForMultipleObjectsEx( count, handles, flags & MWMO_WAITALL,
338                                      timeout, flags & MWMO_ALERTABLE );
339 }
340
341 static INT nulldrv_ReleaseDC( HWND hwnd, HDC hdc, BOOL end_paint )
342 {
343     return 0;
344 }
345
346 static BOOL nulldrv_ScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
347                               HRGN hrgn, LPRECT update )
348 {
349     return FALSE;
350 }
351
352 static void nulldrv_SetFocus( HWND hwnd )
353 {
354 }
355
356 static HWND nulldrv_SetParent( HWND hwnd, HWND parent )
357 {
358     return 0;
359 }
360
361 static BOOL nulldrv_SetWindowPos( WINDOWPOS *pos )
362 {
363     return FALSE;
364 }
365
366 static int nulldrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
367 {
368     return 1;
369 }
370
371 static void nulldrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
372 {
373 }
374
375 static void nulldrv_SetWindowStyle( HWND hwnd, DWORD old_style )
376 {
377 }
378
379 static void nulldrv_SetWindowText( HWND hwnd, LPCWSTR text )
380 {
381 }
382
383 static BOOL nulldrv_ShowWindow( HWND hwnd, INT cmd )
384 {
385     return FALSE;
386 }
387
388 static void nulldrv_SysCommandSizeMove( HWND hwnd, WPARAM wparam )
389 {
390 }
391
392 static HWND nulldrv_WindowFromDC( HDC hdc )
393 {
394     return 0;
395 }
396
397 static LRESULT nulldrv_WindowMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
398 {
399     return 0;
400 }
401
402 static const USER_DRIVER null_driver =
403 {
404     /* keyboard functions */
405     nulldrv_ActivateKeyboardLayout,
406     nulldrv_Beep,
407     nulldrv_GetAsyncKeyState,
408     nulldrv_GetKeyNameText,
409     nulldrv_GetKeyboardLayout,
410     nulldrv_GetKeyboardLayoutList,
411     nulldrv_GetKeyboardLayoutName,
412     nulldrv_LoadKeyboardLayout,
413     nulldrv_MapVirtualKeyEx,
414     nulldrv_SendInput,
415     nulldrv_ToUnicodeEx,
416     nulldrv_UnloadKeyboardLayout,
417     nulldrv_VkKeyScanEx,
418     /* mouse functions */
419     nulldrv_SetCursor,
420     nulldrv_GetCursorPos,
421     nulldrv_SetCursorPos,
422     /* screen saver functions */
423     nulldrv_GetScreenSaveActive,
424     nulldrv_SetScreenSaveActive,
425     /* clipboard functions */
426     nulldrv_AcquireClipboard,
427     nulldrv_CountClipboardFormats,
428     nulldrv_EmptyClipboard,
429     nulldrv_EndClipboardUpdate,
430     nulldrv_EnumClipboardFormats,
431     nulldrv_GetClipboardData,
432     nulldrv_GetClipboardFormatName,
433     nulldrv_IsClipboardFormatAvailable,
434     nulldrv_RegisterClipboardFormat,
435     nulldrv_SetClipboardData,
436     /* display modes */
437     nulldrv_ChangeDisplaySettingsEx,
438     nulldrv_EnumDisplaySettingsEx,
439     /* windowing functions */
440     nulldrv_CreateDesktopWindow,
441     nulldrv_CreateWindow,
442     nulldrv_DestroyWindow,
443     nulldrv_GetDCEx,
444     nulldrv_MsgWaitForMultipleObjectsEx,
445     nulldrv_ReleaseDC,
446     nulldrv_ScrollDC,
447     nulldrv_SetFocus,
448     nulldrv_SetParent,
449     nulldrv_SetWindowPos,
450     nulldrv_SetWindowRgn,
451     nulldrv_SetWindowIcon,
452     nulldrv_SetWindowStyle,
453     nulldrv_SetWindowText,
454     nulldrv_ShowWindow,
455     nulldrv_SysCommandSizeMove,
456     nulldrv_WindowFromDC,
457     nulldrv_WindowMessage
458 };
459
460
461 /**********************************************************************
462  * Lazy loading user driver
463  *
464  * Initial driver used before another driver is loaded.
465  * Each entry point simply loads the real driver and chains to it.
466  */
467
468 static HKL loaderdrv_ActivateKeyboardLayout( HKL layout, UINT flags )
469 {
470     return load_driver()->pActivateKeyboardLayout( layout, flags );
471 }
472
473 static void loaderdrv_Beep(void)
474 {
475     load_driver()->pBeep();
476 }
477
478 static SHORT loaderdrv_GetAsyncKeyState( INT key )
479 {
480     return load_driver()->pGetAsyncKeyState( key );
481 }
482
483 static INT loaderdrv_GetKeyNameText( LONG lparam, LPWSTR buffer, INT size )
484 {
485     return load_driver()->pGetKeyNameText( lparam, buffer, size );
486 }
487
488 static HKL loaderdrv_GetKeyboardLayout( DWORD layout )
489 {
490     return load_driver()->pGetKeyboardLayout( layout );
491 }
492
493 static UINT loaderdrv_GetKeyboardLayoutList( INT count, HKL *layouts )
494 {
495     return load_driver()->pGetKeyboardLayoutList( count, layouts );
496 }
497
498 static BOOL loaderdrv_GetKeyboardLayoutName( LPWSTR name )
499 {
500     return load_driver()->pGetKeyboardLayoutName( name );
501 }
502
503 static HKL loaderdrv_LoadKeyboardLayout( LPCWSTR name, UINT flags )
504 {
505     return load_driver()->pLoadKeyboardLayout( name, flags );
506 }
507
508 static UINT loaderdrv_MapVirtualKeyEx( UINT code, UINT type, HKL layout )
509 {
510     return load_driver()->pMapVirtualKeyEx( code, type, layout );
511 }
512
513 static UINT loaderdrv_SendInput( UINT count, LPINPUT inputs, int size )
514 {
515     return load_driver()->pSendInput( count, inputs, size );
516 }
517
518 static INT loaderdrv_ToUnicodeEx( UINT virt, UINT scan, LPBYTE state, LPWSTR str,
519                                   int size, UINT flags, HKL layout )
520 {
521     return load_driver()->pToUnicodeEx( virt, scan, state, str, size, flags, layout );
522 }
523
524 static BOOL loaderdrv_UnloadKeyboardLayout( HKL layout )
525 {
526     return load_driver()->pUnloadKeyboardLayout( layout );
527 }
528
529 static SHORT loaderdrv_VkKeyScanEx( WCHAR ch, HKL layout )
530 {
531     return load_driver()->pVkKeyScanEx( ch, layout );
532 }
533
534 static void loaderdrv_SetCursor( struct tagCURSORICONINFO *info )
535 {
536     load_driver()->pSetCursor( info );
537 }
538
539 static BOOL loaderdrv_GetCursorPos( LPPOINT pt )
540 {
541     return load_driver()->pGetCursorPos( pt );
542 }
543
544 static BOOL loaderdrv_SetCursorPos( INT x, INT y )
545 {
546     return load_driver()->pSetCursorPos( x, y );
547 }
548
549 static BOOL loaderdrv_GetScreenSaveActive(void)
550 {
551     return load_driver()->pGetScreenSaveActive();
552 }
553
554 static void loaderdrv_SetScreenSaveActive( BOOL on )
555 {
556     load_driver()->pSetScreenSaveActive( on );
557 }
558
559 static INT loaderdrv_AcquireClipboard( HWND hwnd )
560 {
561     return load_driver()->pAcquireClipboard( hwnd );
562 }
563
564 static BOOL loaderdrv_CountClipboardFormats(void)
565 {
566     return load_driver()->pCountClipboardFormats();
567 }
568
569 static void loaderdrv_EmptyClipboard( BOOL keepunowned )
570 {
571     load_driver()->pEmptyClipboard( keepunowned );
572 }
573
574 static void loaderdrv_EndClipboardUpdate(void)
575 {
576     load_driver()->pEndClipboardUpdate();
577 }
578
579 static UINT loaderdrv_EnumClipboardFormats( UINT format )
580 {
581     return load_driver()->pEnumClipboardFormats( format );
582 }
583
584 static BOOL loaderdrv_GetClipboardData( UINT format, HANDLE16 *h16, HANDLE *h32 )
585 {
586     return load_driver()->pGetClipboardData( format, h16, h32 );
587 }
588
589 static INT loaderdrv_GetClipboardFormatName( UINT format, LPWSTR buffer, UINT len )
590 {
591     return load_driver()->pGetClipboardFormatName( format, buffer, len );
592 }
593
594 static BOOL loaderdrv_IsClipboardFormatAvailable( UINT format )
595 {
596     return load_driver()->pIsClipboardFormatAvailable( format );
597 }
598
599 static UINT loaderdrv_RegisterClipboardFormat( LPCWSTR name )
600 {
601     return load_driver()->pRegisterClipboardFormat( name );
602 }
603
604 static BOOL loaderdrv_SetClipboardData( UINT format, HANDLE16 h16, HANDLE h32, BOOL owner )
605 {
606     return load_driver()->pSetClipboardData( format, h16, h32, owner );
607 }
608
609 static LONG loaderdrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd,
610                                                DWORD flags, LPVOID lparam )
611 {
612     return load_driver()->pChangeDisplaySettingsEx( name, mode, hwnd, flags, lparam );
613 }
614
615 static BOOL loaderdrv_EnumDisplaySettingsEx( LPCWSTR name, DWORD num, LPDEVMODEW mode, DWORD flags )
616 {
617     return load_driver()->pEnumDisplaySettingsEx( name, num, mode, flags );
618 }
619
620 static BOOL loaderdrv_CreateDesktopWindow( HWND hwnd )
621 {
622     return load_driver()->pCreateDesktopWindow( hwnd );
623 }
624
625 static BOOL loaderdrv_CreateWindow( HWND hwnd, CREATESTRUCTA *cs, BOOL unicode )
626 {
627     return load_driver()->pCreateWindow( hwnd, cs, unicode );
628 }
629
630 static void loaderdrv_DestroyWindow( HWND hwnd )
631 {
632     load_driver()->pDestroyWindow( hwnd );
633 }
634
635 static HDC loaderdrv_GetDCEx( HWND hwnd, HRGN hrgn, DWORD flags )
636 {
637     return load_driver()->pGetDCEx( hwnd, hrgn, flags );
638 }
639
640 static DWORD loaderdrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
641                                                     DWORD mask, DWORD flags )
642 {
643     return load_driver()->pMsgWaitForMultipleObjectsEx( count, handles, timeout, mask, flags );
644 }
645
646 static INT loaderdrv_ReleaseDC( HWND hwnd, HDC hdc, BOOL end_paint )
647 {
648     return load_driver()->pReleaseDC( hwnd, hdc, end_paint );
649 }
650
651 static BOOL loaderdrv_ScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
652                                 HRGN hrgn, LPRECT update )
653 {
654     return load_driver()->pScrollDC( hdc, dx, dy, scroll, clip, hrgn, update );
655 }
656
657 static void loaderdrv_SetFocus( HWND hwnd )
658 {
659     load_driver()->pSetFocus( hwnd );
660 }
661
662 static HWND loaderdrv_SetParent( HWND hwnd, HWND parent )
663 {
664     return load_driver()->pSetParent( hwnd, parent );
665 }
666
667 static BOOL loaderdrv_SetWindowPos( WINDOWPOS *pos )
668 {
669     return load_driver()->pSetWindowPos( pos );
670 }
671
672 static int loaderdrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
673 {
674     return load_driver()->pSetWindowRgn( hwnd, hrgn, redraw );
675 }
676
677 static void loaderdrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
678 {
679     load_driver()->pSetWindowIcon( hwnd, type, icon );
680 }
681
682 static void loaderdrv_SetWindowStyle( HWND hwnd, DWORD old_style )
683 {
684     load_driver()->pSetWindowStyle( hwnd, old_style );
685 }
686
687 static void loaderdrv_SetWindowText( HWND hwnd, LPCWSTR text )
688 {
689     load_driver()->pSetWindowText( hwnd, text );
690 }
691
692 static BOOL loaderdrv_ShowWindow( HWND hwnd, INT cmd )
693 {
694     return load_driver()->pShowWindow( hwnd, cmd );
695 }
696
697 static void loaderdrv_SysCommandSizeMove( HWND hwnd, WPARAM wparam )
698 {
699     load_driver()->pSysCommandSizeMove( hwnd, wparam );
700 }
701
702 static HWND loaderdrv_WindowFromDC( HDC hdc )
703 {
704     return load_driver()->pWindowFromDC( hdc );
705 }
706
707 static LRESULT loaderdrv_WindowMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
708 {
709     return load_driver()->pWindowMessage( hwnd, msg, wparam, lparam );
710 }
711
712 static const USER_DRIVER lazy_load_driver =
713 {
714     /* keyboard functions */
715     loaderdrv_ActivateKeyboardLayout,
716     loaderdrv_Beep,
717     loaderdrv_GetAsyncKeyState,
718     loaderdrv_GetKeyNameText,
719     loaderdrv_GetKeyboardLayout,
720     loaderdrv_GetKeyboardLayoutList,
721     loaderdrv_GetKeyboardLayoutName,
722     loaderdrv_LoadKeyboardLayout,
723     loaderdrv_MapVirtualKeyEx,
724     loaderdrv_SendInput,
725     loaderdrv_ToUnicodeEx,
726     loaderdrv_UnloadKeyboardLayout,
727     loaderdrv_VkKeyScanEx,
728     /* mouse functions */
729     loaderdrv_SetCursor,
730     loaderdrv_GetCursorPos,
731     loaderdrv_SetCursorPos,
732     /* screen saver functions */
733     loaderdrv_GetScreenSaveActive,
734     loaderdrv_SetScreenSaveActive,
735     /* clipboard functions */
736     loaderdrv_AcquireClipboard,
737     loaderdrv_CountClipboardFormats,
738     loaderdrv_EmptyClipboard,
739     loaderdrv_EndClipboardUpdate,
740     loaderdrv_EnumClipboardFormats,
741     loaderdrv_GetClipboardData,
742     loaderdrv_GetClipboardFormatName,
743     loaderdrv_IsClipboardFormatAvailable,
744     loaderdrv_RegisterClipboardFormat,
745     loaderdrv_SetClipboardData,
746     /* display modes */
747     loaderdrv_ChangeDisplaySettingsEx,
748     loaderdrv_EnumDisplaySettingsEx,
749     /* windowing functions */
750     loaderdrv_CreateDesktopWindow,
751     loaderdrv_CreateWindow,
752     loaderdrv_DestroyWindow,
753     loaderdrv_GetDCEx,
754     loaderdrv_MsgWaitForMultipleObjectsEx,
755     loaderdrv_ReleaseDC,
756     loaderdrv_ScrollDC,
757     loaderdrv_SetFocus,
758     loaderdrv_SetParent,
759     loaderdrv_SetWindowPos,
760     loaderdrv_SetWindowRgn,
761     loaderdrv_SetWindowIcon,
762     loaderdrv_SetWindowStyle,
763     loaderdrv_SetWindowText,
764     loaderdrv_ShowWindow,
765     loaderdrv_SysCommandSizeMove,
766     loaderdrv_WindowFromDC,
767     loaderdrv_WindowMessage
768 };