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(CreateCursorIcon);
  88         GET_USER_FUNC(DestroyCursorIcon);
  89         GET_USER_FUNC(SetCursor);
  90         GET_USER_FUNC(GetCursorPos);
  91         GET_USER_FUNC(SetCursorPos);
  92         GET_USER_FUNC(ClipCursor);
  93         GET_USER_FUNC(GetScreenSaveActive);
  94         GET_USER_FUNC(SetScreenSaveActive);
  95         GET_USER_FUNC(AcquireClipboard);
  96         GET_USER_FUNC(EmptyClipboard);
  97         GET_USER_FUNC(SetClipboardData);
  98         GET_USER_FUNC(GetClipboardData);
  99         GET_USER_FUNC(CountClipboardFormats);
 100         GET_USER_FUNC(EnumClipboardFormats);
 101         GET_USER_FUNC(IsClipboardFormatAvailable);
 102         GET_USER_FUNC(RegisterClipboardFormat);
 103         GET_USER_FUNC(GetClipboardFormatName);
 104         GET_USER_FUNC(EndClipboardUpdate);
 105         GET_USER_FUNC(ChangeDisplaySettingsEx);
 106         GET_USER_FUNC(EnumDisplayMonitors);
 107         GET_USER_FUNC(EnumDisplaySettingsEx);
 108         GET_USER_FUNC(GetMonitorInfo);
 109         GET_USER_FUNC(CreateDesktopWindow);
 110         GET_USER_FUNC(CreateWindow);
 111         GET_USER_FUNC(DestroyWindow);
 112         GET_USER_FUNC(GetDC);
 113         GET_USER_FUNC(MsgWaitForMultipleObjectsEx);
 114         GET_USER_FUNC(ReleaseDC);
 115         GET_USER_FUNC(ScrollDC);
 116         GET_USER_FUNC(SetCapture);
 117         GET_USER_FUNC(SetFocus);
 118         GET_USER_FUNC(SetLayeredWindowAttributes);
 119         GET_USER_FUNC(SetParent);
 120         GET_USER_FUNC(SetWindowRgn);
 121         GET_USER_FUNC(SetWindowIcon);
 122         GET_USER_FUNC(SetWindowStyle);
 123         GET_USER_FUNC(SetWindowText);
 124         GET_USER_FUNC(ShowWindow);
 125         GET_USER_FUNC(SysCommand);
 126         GET_USER_FUNC(WindowMessage);
 127         GET_USER_FUNC(WindowPosChanging);
 128         GET_USER_FUNC(WindowPosChanged);
 129 #undef GET_USER_FUNC
 130     }
 131
 132     prev = InterlockedCompareExchangePointer( (void **)&USER_Driver, driver, &lazy_load_driver );
 133     if (prev != &lazy_load_driver)
 134     {
 135         /* another thread beat us to it */
 136         HeapFree( GetProcessHeap(), 0, driver );
 137         FreeLibrary( graphics_driver );
 138         driver = prev;
 139     }
 140     return driver;
 141 }
 142
 143 /* unload the graphics driver on process exit */
 144 void USER_unload_driver(void)
 145 {
 146     USER_DRIVER *prev;
 147     /* make sure we don't try to call the driver after it has been detached */
 148     prev = InterlockedExchangePointer( (void **)&USER_Driver, &null_driver );
 149     if (prev != &lazy_load_driver && prev != &null_driver)
 150         HeapFree( GetProcessHeap(), 0, prev );
 151 }
 152
 153
 154 /**********************************************************************
 155  * Null user driver
 156  *
 157  * These are fallbacks for entry points that are not implemented in the real driver.
 158  */
 159
 160 static HKL CDECL nulldrv_ActivateKeyboardLayout( HKL layout, UINT flags )
 161 {
 162     return 0;
 163 }
 164
 165 static void CDECL nulldrv_Beep(void)
 166 {
 167 }
 168
 169 static SHORT CDECL nulldrv_GetAsyncKeyState( INT key )
 170 {
 171     return 0;
 172 }
 173
 174 static INT CDECL nulldrv_GetKeyNameText( LONG lparam, LPWSTR buffer, INT size )
 175 {
 176     return 0;
 177 }
 178
 179 static HKL CDECL nulldrv_GetKeyboardLayout( DWORD layout )
 180 {
 181     return 0;
 182 }
 183
 184 static BOOL CDECL nulldrv_GetKeyboardLayoutName( LPWSTR name )
 185 {
 186     return FALSE;
 187 }
 188
 189 static HKL CDECL nulldrv_LoadKeyboardLayout( LPCWSTR name, UINT flags )
 190 {
 191     return 0;
 192 }
 193
 194 static UINT CDECL nulldrv_MapVirtualKeyEx( UINT code, UINT type, HKL layout )
 195 {
 196     return 0;
 197 }
 198
 199 static UINT CDECL nulldrv_SendInput( UINT count, LPINPUT inputs, int size )
 200 {
 201     return 0;
 202 }
 203
 204 static INT CDECL nulldrv_ToUnicodeEx( UINT virt, UINT scan, const BYTE *state, LPWSTR str,
 205                                       int size, UINT flags, HKL layout )
 206 {
 207     return 0;
 208 }
 209
 210 static BOOL CDECL nulldrv_UnloadKeyboardLayout( HKL layout )
 211 {
 212     return 0;
 213 }
 214
 215 static SHORT CDECL nulldrv_VkKeyScanEx( WCHAR ch, HKL layout )
 216 {
 217     return -1;
 218 }
 219
 220 static void CDECL nulldrv_CreateCursorIcon( HCURSOR cursor )
 221 {
 222 }
 223
 224 static void CDECL nulldrv_DestroyCursorIcon( HCURSOR cursor )
 225 {
 226 }
 227
 228 static void CDECL nulldrv_SetCursor( HCURSOR cursor )
 229 {
 230 }
 231
 232 static BOOL CDECL nulldrv_GetCursorPos( LPPOINT pt )
 233 {
 234     return FALSE;
 235 }
 236
 237 static BOOL CDECL nulldrv_SetCursorPos( INT x, INT y )
 238 {
 239     return FALSE;
 240 }
 241
 242 static BOOL CDECL nulldrv_ClipCursor( LPCRECT clip )
 243 {
 244     return FALSE;
 245 }
 246
 247 static BOOL CDECL nulldrv_GetScreenSaveActive(void)
 248 {
 249     return FALSE;
 250 }
 251
 252 static void CDECL nulldrv_SetScreenSaveActive( BOOL on )
 253 {
 254 }
 255
 256 static INT CDECL nulldrv_AcquireClipboard( HWND hwnd )
 257 {
 258     return 0;
 259 }
 260
 261 static BOOL CDECL nulldrv_CountClipboardFormats(void)
 262 {
 263     return 0;
 264 }
 265
 266 static void CDECL nulldrv_EmptyClipboard( BOOL keepunowned )
 267 {
 268 }
 269
 270 static void CDECL nulldrv_EndClipboardUpdate(void)
 271 {
 272 }
 273
 274 static UINT CDECL nulldrv_EnumClipboardFormats( UINT format )
 275 {
 276     return 0;
 277 }
 278
 279 static HANDLE CDECL nulldrv_GetClipboardData( UINT format )
 280 {
 281     return 0;
 282 }
 283
 284 static INT CDECL nulldrv_GetClipboardFormatName( UINT format, LPWSTR buffer, UINT len )
 285 {
 286     return FALSE;
 287 }
 288
 289 static BOOL CDECL nulldrv_IsClipboardFormatAvailable( UINT format )
 290 {
 291     return FALSE;
 292 }
 293
 294 static UINT CDECL nulldrv_RegisterClipboardFormat( LPCWSTR name )
 295 {
 296     return 0;
 297 }
 298
 299 static BOOL CDECL nulldrv_SetClipboardData( UINT format, HANDLE handle, BOOL owner )
 300 {
 301     return FALSE;
 302 }
 303
 304 static LONG CDECL nulldrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd,
 305                                              DWORD flags, LPVOID lparam )
 306 {
 307     return DISP_CHANGE_FAILED;
 308 }
 309
 310 static BOOL CDECL nulldrv_EnumDisplayMonitors( HDC hdc, LPRECT rect, MONITORENUMPROC proc, LPARAM lp )
 311 {
 312     return FALSE;
 313 }
 314
 315 static BOOL CDECL nulldrv_EnumDisplaySettingsEx( LPCWSTR name, DWORD num, LPDEVMODEW mode, DWORD flags )
 316 {
 317     return FALSE;
 318 }
 319
 320 static BOOL CDECL nulldrv_GetMonitorInfo( HMONITOR handle, LPMONITORINFO info )
 321 {
 322     return FALSE;
 323 }
 324
 325 static BOOL CDECL nulldrv_CreateDesktopWindow( HWND hwnd )
 326 {
 327     return TRUE;
 328 }
 329
 330 static BOOL CDECL nulldrv_CreateWindow( HWND hwnd )
 331 {
 332     static int warned;
 333
 334     /* HWND_MESSAGE windows don't need a graphics driver */
 335     if (GetAncestor( hwnd, GA_PARENT ) == get_user_thread_info()->msg_window) return TRUE;
 336     if (warned++) return FALSE;
 337
 338     MESSAGE( "Application tried to create a window, but no driver could be loaded.\n");
 339     switch (driver_load_error)
 340     {
 341     case ERROR_MOD_NOT_FOUND:
 342         MESSAGE( "The X11 driver is missing.  Check your build!\n" );
 343         break;
 344     case ERROR_DLL_INIT_FAILED:
 345         MESSAGE( "Make sure that your X server is running and that $DISPLAY is set correctly.\n" );
 346         break;
 347     default:
 348         MESSAGE( "Unknown error (%d).\n", driver_load_error );
 349     }
 350
 351     return FALSE;
 352 }
 353
 354 static void CDECL nulldrv_DestroyWindow( HWND hwnd )
 355 {
 356 }
 357
 358 static void CDECL nulldrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
 359                                  const RECT *top_rect, DWORD flags )
 360 {
 361 }
 362
 363 static DWORD CDECL nulldrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
 364                                                         DWORD mask, DWORD flags )
 365 {
 366     return WaitForMultipleObjectsEx( count, handles, flags & MWMO_WAITALL,
 367                                      timeout, flags & MWMO_ALERTABLE );
 368 }
 369
 370 static void CDECL nulldrv_ReleaseDC( HWND hwnd, HDC hdc )
 371 {
 372 }
 373
 374 static BOOL CDECL nulldrv_ScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
 375                                     HRGN hrgn, LPRECT update )
 376 {
 377     return FALSE;
 378 }
 379
 380 static void CDECL nulldrv_SetCapture( HWND hwnd, UINT flags )
 381 {
 382 }
 383
 384 static void CDECL nulldrv_SetFocus( HWND hwnd )
 385 {
 386 }
 387
 388 static void CDECL nulldrv_SetLayeredWindowAttributes( HWND hwnd, COLORREF key, BYTE alpha, DWORD flags )
 389 {
 390 }
 391
 392 static void CDECL nulldrv_SetParent( HWND hwnd, HWND parent, HWND old_parent )
 393 {
 394 }
 395
 396 static int CDECL nulldrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
 397 {
 398     return 1;
 399 }
 400
 401 static void CDECL nulldrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
 402 {
 403 }
 404
 405 static void CDECL nulldrv_SetWindowStyle( HWND hwnd, INT offset, STYLESTRUCT *style )
 406 {
 407 }
 408
 409 static void CDECL nulldrv_SetWindowText( HWND hwnd, LPCWSTR text )
 410 {
 411 }
 412
 413 static UINT CDECL nulldrv_ShowWindow( HWND hwnd, INT cmd, RECT *rect, UINT swp )
 414 {
 415     return swp;
 416 }
 417
 418 static LRESULT CDECL nulldrv_SysCommand( HWND hwnd, WPARAM wparam, LPARAM lparam )
 419 {
 420     return -1;
 421 }
 422
 423 static LRESULT CDECL nulldrv_WindowMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
 424 {
 425     return 0;
 426 }
 427
 428 static void CDECL nulldrv_WindowPosChanging( HWND hwnd, HWND insert_after, UINT swp_flags,
 429                                              const RECT *window_rect, const RECT *client_rect,
 430                                              RECT *visible_rect )
 431 {
 432 }
 433
 434 static void CDECL nulldrv_WindowPosChanged( HWND hwnd, HWND insert_after, UINT swp_flags,
 435                                             const RECT *window_rect, const RECT *client_rect,
 436                                             const RECT *visible_rect, const RECT *valid_rects )
 437 {
 438 }
 439
 440 static USER_DRIVER null_driver =
 441 {
 442     /* keyboard functions */
 443     nulldrv_ActivateKeyboardLayout,
 444     nulldrv_Beep,
 445     nulldrv_GetAsyncKeyState,
 446     nulldrv_GetKeyNameText,
 447     nulldrv_GetKeyboardLayout,
 448     nulldrv_GetKeyboardLayoutName,
 449     nulldrv_LoadKeyboardLayout,
 450     nulldrv_MapVirtualKeyEx,
 451     nulldrv_SendInput,
 452     nulldrv_ToUnicodeEx,
 453     nulldrv_UnloadKeyboardLayout,
 454     nulldrv_VkKeyScanEx,
 455     /* cursor/icon functions */
 456     nulldrv_CreateCursorIcon,
 457     nulldrv_DestroyCursorIcon,
 458     nulldrv_SetCursor,
 459     nulldrv_GetCursorPos,
 460     nulldrv_SetCursorPos,
 461     nulldrv_ClipCursor,
 462     /* screen saver functions */
 463     nulldrv_GetScreenSaveActive,
 464     nulldrv_SetScreenSaveActive,
 465     /* clipboard functions */
 466     nulldrv_AcquireClipboard,
 467     nulldrv_CountClipboardFormats,
 468     nulldrv_EmptyClipboard,
 469     nulldrv_EndClipboardUpdate,
 470     nulldrv_EnumClipboardFormats,
 471     nulldrv_GetClipboardData,
 472     nulldrv_GetClipboardFormatName,
 473     nulldrv_IsClipboardFormatAvailable,
 474     nulldrv_RegisterClipboardFormat,
 475     nulldrv_SetClipboardData,
 476     /* display modes */
 477     nulldrv_ChangeDisplaySettingsEx,
 478     nulldrv_EnumDisplayMonitors,
 479     nulldrv_EnumDisplaySettingsEx,
 480     nulldrv_GetMonitorInfo,
 481     /* windowing functions */
 482     nulldrv_CreateDesktopWindow,
 483     nulldrv_CreateWindow,
 484     nulldrv_DestroyWindow,
 485     nulldrv_GetDC,
 486     nulldrv_MsgWaitForMultipleObjectsEx,
 487     nulldrv_ReleaseDC,
 488     nulldrv_ScrollDC,
 489     nulldrv_SetCapture,
 490     nulldrv_SetFocus,
 491     nulldrv_SetLayeredWindowAttributes,
 492     nulldrv_SetParent,
 493     nulldrv_SetWindowRgn,
 494     nulldrv_SetWindowIcon,
 495     nulldrv_SetWindowStyle,
 496     nulldrv_SetWindowText,
 497     nulldrv_ShowWindow,
 498     nulldrv_SysCommand,
 499     nulldrv_WindowMessage,
 500     nulldrv_WindowPosChanging,
 501     nulldrv_WindowPosChanged
 502 };
 503
 504
 505 /**********************************************************************
 506  * Lazy loading user driver
 507  *
 508  * Initial driver used before another driver is loaded.
 509  * Each entry point simply loads the real driver and chains to it.
 510  */
 511
 512 static HKL CDECL loaderdrv_ActivateKeyboardLayout( HKL layout, UINT flags )
 513 {
 514     return load_driver()->pActivateKeyboardLayout( layout, flags );
 515 }
 516
 517 static void CDECL loaderdrv_Beep(void)
 518 {
 519     load_driver()->pBeep();
 520 }
 521
 522 static SHORT CDECL loaderdrv_GetAsyncKeyState( INT key )
 523 {
 524     return load_driver()->pGetAsyncKeyState( key );
 525 }
 526
 527 static INT CDECL loaderdrv_GetKeyNameText( LONG lparam, LPWSTR buffer, INT size )
 528 {
 529     return load_driver()->pGetKeyNameText( lparam, buffer, size );
 530 }
 531
 532 static HKL CDECL loaderdrv_GetKeyboardLayout( DWORD layout )
 533 {
 534     return load_driver()->pGetKeyboardLayout( layout );
 535 }
 536
 537 static BOOL CDECL loaderdrv_GetKeyboardLayoutName( LPWSTR name )
 538 {
 539     return load_driver()->pGetKeyboardLayoutName( name );
 540 }
 541
 542 static HKL CDECL loaderdrv_LoadKeyboardLayout( LPCWSTR name, UINT flags )
 543 {
 544     return load_driver()->pLoadKeyboardLayout( name, flags );
 545 }
 546
 547 static UINT CDECL loaderdrv_MapVirtualKeyEx( UINT code, UINT type, HKL layout )
 548 {
 549     return load_driver()->pMapVirtualKeyEx( code, type, layout );
 550 }
 551
 552 static UINT CDECL loaderdrv_SendInput( UINT count, LPINPUT inputs, int size )
 553 {
 554     return load_driver()->pSendInput( count, inputs, size );
 555 }
 556
 557 static INT CDECL loaderdrv_ToUnicodeEx( UINT virt, UINT scan, const BYTE *state, LPWSTR str,
 558                                   int size, UINT flags, HKL layout )
 559 {
 560     return load_driver()->pToUnicodeEx( virt, scan, state, str, size, flags, layout );
 561 }
 562
 563 static BOOL CDECL loaderdrv_UnloadKeyboardLayout( HKL layout )
 564 {
 565     return load_driver()->pUnloadKeyboardLayout( layout );
 566 }
 567
 568 static SHORT CDECL loaderdrv_VkKeyScanEx( WCHAR ch, HKL layout )
 569 {
 570     return load_driver()->pVkKeyScanEx( ch, layout );
 571 }
 572
 573 static void CDECL loaderdrv_CreateCursorIcon( HCURSOR cursor )
 574 {
 575     load_driver()->pCreateCursorIcon( cursor );
 576 }
 577
 578 static void CDECL loaderdrv_DestroyCursorIcon( HCURSOR cursor )
 579 {
 580     load_driver()->pDestroyCursorIcon( cursor );
 581 }
 582
 583 static void CDECL loaderdrv_SetCursor( HCURSOR cursor )
 584 {
 585     load_driver()->pSetCursor( cursor );
 586 }
 587
 588 static BOOL CDECL loaderdrv_GetCursorPos( LPPOINT pt )
 589 {
 590     return load_driver()->pGetCursorPos( pt );
 591 }
 592
 593 static BOOL CDECL loaderdrv_SetCursorPos( INT x, INT y )
 594 {
 595     return load_driver()->pSetCursorPos( x, y );
 596 }
 597
 598 static BOOL CDECL loaderdrv_ClipCursor( LPCRECT clip )
 599 {
 600     return load_driver()->pClipCursor( clip );
 601 }
 602
 603 static BOOL CDECL loaderdrv_GetScreenSaveActive(void)
 604 {
 605     return load_driver()->pGetScreenSaveActive();
 606 }
 607
 608 static void CDECL loaderdrv_SetScreenSaveActive( BOOL on )
 609 {
 610     load_driver()->pSetScreenSaveActive( on );
 611 }
 612
 613 static INT CDECL loaderdrv_AcquireClipboard( HWND hwnd )
 614 {
 615     return load_driver()->pAcquireClipboard( hwnd );
 616 }
 617
 618 static BOOL CDECL loaderdrv_CountClipboardFormats(void)
 619 {
 620     return load_driver()->pCountClipboardFormats();
 621 }
 622
 623 static void CDECL loaderdrv_EmptyClipboard( BOOL keepunowned )
 624 {
 625     load_driver()->pEmptyClipboard( keepunowned );
 626 }
 627
 628 static void CDECL loaderdrv_EndClipboardUpdate(void)
 629 {
 630     load_driver()->pEndClipboardUpdate();
 631 }
 632
 633 static UINT CDECL loaderdrv_EnumClipboardFormats( UINT format )
 634 {
 635     return load_driver()->pEnumClipboardFormats( format );
 636 }
 637
 638 static HANDLE CDECL loaderdrv_GetClipboardData( UINT format )
 639 {
 640     return load_driver()->pGetClipboardData( format );
 641 }
 642
 643 static INT CDECL loaderdrv_GetClipboardFormatName( UINT format, LPWSTR buffer, UINT len )
 644 {
 645     return load_driver()->pGetClipboardFormatName( format, buffer, len );
 646 }
 647
 648 static BOOL CDECL loaderdrv_IsClipboardFormatAvailable( UINT format )
 649 {
 650     return load_driver()->pIsClipboardFormatAvailable( format );
 651 }
 652
 653 static UINT CDECL loaderdrv_RegisterClipboardFormat( LPCWSTR name )
 654 {
 655     return load_driver()->pRegisterClipboardFormat( name );
 656 }
 657
 658 static BOOL CDECL loaderdrv_SetClipboardData( UINT format, HANDLE handle, BOOL owner )
 659 {
 660     return load_driver()->pSetClipboardData( format, handle, owner );
 661 }
 662
 663 static LONG CDECL loaderdrv_ChangeDisplaySettingsEx( LPCWSTR name, LPDEVMODEW mode, HWND hwnd,
 664                                                      DWORD flags, LPVOID lparam )
 665 {
 666     return load_driver()->pChangeDisplaySettingsEx( name, mode, hwnd, flags, lparam );
 667 }
 668
 669 static BOOL CDECL loaderdrv_EnumDisplayMonitors( HDC hdc, LPRECT rect, MONITORENUMPROC proc, LPARAM lp )
 670 {
 671     return load_driver()->pEnumDisplayMonitors( hdc, rect, proc, lp );
 672 }
 673
 674 static BOOL CDECL loaderdrv_EnumDisplaySettingsEx( LPCWSTR name, DWORD num, LPDEVMODEW mode, DWORD flags )
 675 {
 676     return load_driver()->pEnumDisplaySettingsEx( name, num, mode, flags );
 677 }
 678
 679 static BOOL CDECL loaderdrv_GetMonitorInfo( HMONITOR handle, LPMONITORINFO info )
 680 {
 681     return load_driver()->pGetMonitorInfo( handle, info );
 682 }
 683
 684 static BOOL CDECL loaderdrv_CreateDesktopWindow( HWND hwnd )
 685 {
 686     return load_driver()->pCreateDesktopWindow( hwnd );
 687 }
 688
 689 static BOOL CDECL loaderdrv_CreateWindow( HWND hwnd )
 690 {
 691     return load_driver()->pCreateWindow( hwnd );
 692 }
 693
 694 static void CDECL loaderdrv_DestroyWindow( HWND hwnd )
 695 {
 696     load_driver()->pDestroyWindow( hwnd );
 697 }
 698
 699 static void CDECL loaderdrv_GetDC( HDC hdc, HWND hwnd, HWND top_win, const RECT *win_rect,
 700                                    const RECT *top_rect, DWORD flags )
 701 {
 702     load_driver()->pGetDC( hdc, hwnd, top_win, win_rect, top_rect, flags );
 703 }
 704
 705 static DWORD CDECL loaderdrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles, DWORD timeout,
 706                                                           DWORD mask, DWORD flags )
 707 {
 708     return load_driver()->pMsgWaitForMultipleObjectsEx( count, handles, timeout, mask, flags );
 709 }
 710
 711 static void CDECL loaderdrv_ReleaseDC( HWND hwnd, HDC hdc )
 712 {
 713     load_driver()->pReleaseDC( hwnd, hdc );
 714 }
 715
 716 static BOOL CDECL loaderdrv_ScrollDC( HDC hdc, INT dx, INT dy, const RECT *scroll, const RECT *clip,
 717                                       HRGN hrgn, LPRECT update )
 718 {
 719     return load_driver()->pScrollDC( hdc, dx, dy, scroll, clip, hrgn, update );
 720 }
 721
 722 static void CDECL loaderdrv_SetCapture( HWND hwnd, UINT flags )
 723 {
 724     load_driver()->pSetCapture( hwnd, flags );
 725 }
 726
 727 static void CDECL loaderdrv_SetFocus( HWND hwnd )
 728 {
 729     load_driver()->pSetFocus( hwnd );
 730 }
 731
 732 static void CDECL loaderdrv_SetLayeredWindowAttributes( HWND hwnd, COLORREF key, BYTE alpha, DWORD flags )
 733 {
 734     load_driver()->pSetLayeredWindowAttributes( hwnd, key, alpha, flags );
 735 }
 736
 737 static void CDECL loaderdrv_SetParent( HWND hwnd, HWND parent, HWND old_parent )
 738 {
 739     load_driver()->pSetParent( hwnd, parent, old_parent );
 740 }
 741
 742 static int CDECL loaderdrv_SetWindowRgn( HWND hwnd, HRGN hrgn, BOOL redraw )
 743 {
 744     return load_driver()->pSetWindowRgn( hwnd, hrgn, redraw );
 745 }
 746
 747 static void CDECL loaderdrv_SetWindowIcon( HWND hwnd, UINT type, HICON icon )
 748 {
 749     load_driver()->pSetWindowIcon( hwnd, type, icon );
 750 }
 751
 752 static void CDECL loaderdrv_SetWindowStyle( HWND hwnd, INT offset, STYLESTRUCT *style )
 753 {
 754     load_driver()->pSetWindowStyle( hwnd, offset, style );
 755 }
 756
 757 static void CDECL loaderdrv_SetWindowText( HWND hwnd, LPCWSTR text )
 758 {
 759     load_driver()->pSetWindowText( hwnd, text );
 760 }
 761
 762 static UINT CDECL loaderdrv_ShowWindow( HWND hwnd, INT cmd, RECT *rect, UINT swp )
 763 {
 764     return load_driver()->pShowWindow( hwnd, cmd, rect, swp );
 765 }
 766
 767 static LRESULT CDECL loaderdrv_SysCommand( HWND hwnd, WPARAM wparam, LPARAM lparam )
 768 {
 769     return load_driver()->pSysCommand( hwnd, wparam, lparam );
 770 }
 771
 772 static LRESULT CDECL loaderdrv_WindowMessage( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
 773 {
 774     return load_driver()->pWindowMessage( hwnd, msg, wparam, lparam );
 775 }
 776
 777 static void CDECL loaderdrv_WindowPosChanging( HWND hwnd, HWND insert_after, UINT swp_flags,
 778                                                const RECT *window_rect, const RECT *client_rect,
 779                                                RECT *visible_rect )
 780 {
 781     load_driver()->pWindowPosChanging( hwnd, insert_after, swp_flags,
 782                                        window_rect, client_rect, visible_rect );
 783 }
 784
 785 static void CDECL loaderdrv_WindowPosChanged( HWND hwnd, HWND insert_after, UINT swp_flags,
 786                                               const RECT *window_rect, const RECT *client_rect,
 787                                               const RECT *visible_rect, const RECT *valid_rects )
 788 {
 789     load_driver()->pWindowPosChanged( hwnd, insert_after, swp_flags, window_rect,
 790                                       client_rect, visible_rect, valid_rects );
 791 }
 792
 793 static USER_DRIVER lazy_load_driver =
 794 {
 795     /* keyboard functions */
 796     loaderdrv_ActivateKeyboardLayout,
 797     loaderdrv_Beep,
 798     loaderdrv_GetAsyncKeyState,
 799     loaderdrv_GetKeyNameText,
 800     loaderdrv_GetKeyboardLayout,
 801     loaderdrv_GetKeyboardLayoutName,
 802     loaderdrv_LoadKeyboardLayout,
 803     loaderdrv_MapVirtualKeyEx,
 804     loaderdrv_SendInput,
 805     loaderdrv_ToUnicodeEx,
 806     loaderdrv_UnloadKeyboardLayout,
 807     loaderdrv_VkKeyScanEx,
 808     /* cursor/icon functions */
 809     loaderdrv_CreateCursorIcon,
 810     loaderdrv_DestroyCursorIcon,
 811     loaderdrv_SetCursor,
 812     loaderdrv_GetCursorPos,
 813     loaderdrv_SetCursorPos,
 814     loaderdrv_ClipCursor,
 815     /* screen saver functions */
 816     loaderdrv_GetScreenSaveActive,
 817     loaderdrv_SetScreenSaveActive,
 818     /* clipboard functions */
 819     loaderdrv_AcquireClipboard,
 820     loaderdrv_CountClipboardFormats,
 821     loaderdrv_EmptyClipboard,
 822     loaderdrv_EndClipboardUpdate,
 823     loaderdrv_EnumClipboardFormats,
 824     loaderdrv_GetClipboardData,
 825     loaderdrv_GetClipboardFormatName,
 826     loaderdrv_IsClipboardFormatAvailable,
 827     loaderdrv_RegisterClipboardFormat,
 828     loaderdrv_SetClipboardData,
 829     /* display modes */
 830     loaderdrv_ChangeDisplaySettingsEx,
 831     loaderdrv_EnumDisplayMonitors,
 832     loaderdrv_EnumDisplaySettingsEx,
 833     loaderdrv_GetMonitorInfo,
 834     /* windowing functions */
 835     loaderdrv_CreateDesktopWindow,
 836     loaderdrv_CreateWindow,
 837     loaderdrv_DestroyWindow,
 838     loaderdrv_GetDC,
 839     loaderdrv_MsgWaitForMultipleObjectsEx,
 840     loaderdrv_ReleaseDC,
 841     loaderdrv_ScrollDC,
 842     loaderdrv_SetCapture,
 843     loaderdrv_SetFocus,
 844     loaderdrv_SetLayeredWindowAttributes,
 845     loaderdrv_SetParent,
 846     loaderdrv_SetWindowRgn,
 847     loaderdrv_SetWindowIcon,
 848     loaderdrv_SetWindowStyle,
 849     loaderdrv_SetWindowText,
 850     loaderdrv_ShowWindow,
 851     loaderdrv_SysCommand,
 852     loaderdrv_WindowMessage,
 853     loaderdrv_WindowPosChanging,
 854     loaderdrv_WindowPosChanged
 855 };