ReactOS  0.4.12-dev-90-g2e2e63e
keyboard.c
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1 /*
2  * COPYRIGHT: See COPYING in the top level directory
3  * PROJECT: ReactOS kernel
4  * PURPOSE: Keyboard functions
5  * FILE: win32ss/user/ntuser/keyboard.c
6  * PROGRAMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
7  * Rafal Harabien (rafalh@reactos.org)
8  */
9 
10 #include <win32k.h>
11 DBG_DEFAULT_CHANNEL(UserKbd);
12 
13 BYTE gafAsyncKeyState[256 * 2 / 8]; // 2 bits per key
14 static BYTE gafAsyncKeyStateRecentDown[256 / 8]; // 1 bit per key
20 
21 /* FUNCTIONS *****************************************************************/
22 
23 /*
24  * InitKeyboardImpl
25  *
26  * Initialization -- Right now, just zero the key state
27  */
30 NTAPI
32 {
35  // Clear and set default information.
36  RtlZeroMemory(&gKeyboardInfo, sizeof(gKeyboardInfo));
37  gKeyboardInfo.KeyboardIdentifier.Type = 4; /* AT-101 */
38  gKeyboardInfo.NumberOfFunctionKeys = 12; /* We're doing an 101 for now, so return 12 F-keys */
39  return STATUS_SUCCESS;
40 }
41 
42 /*
43  * IntKeyboardGetIndicatorTrans
44  *
45  * Asks the keyboard driver to send a small table that shows which
46  * lights should connect with which scancodes
47  */
48 //static
51  PKEYBOARD_INDICATOR_TRANSLATION *ppIndicatorTrans)
52 {
54  DWORD dwSize = 0;
55  IO_STATUS_BLOCK Block;
57 
58  dwSize = sizeof(KEYBOARD_INDICATOR_TRANSLATION);
59 
61  dwSize,
63 
64  while (pRet)
65  {
66  Status = ZwDeviceIoControlFile(hKeyboardDevice,
67  NULL,
68  NULL,
69  NULL,
70  &Block,
72  NULL, 0,
73  pRet, dwSize);
74 
75  if (Status != STATUS_BUFFER_TOO_SMALL)
76  break;
77 
79 
80  dwSize += sizeof(KEYBOARD_INDICATOR_TRANSLATION);
81 
83  dwSize,
85  }
86 
87  if (!pRet)
89 
90  if (!NT_SUCCESS(Status))
91  {
93  return Status;
94  }
95 
96  *ppIndicatorTrans = pRet;
97  return Status;
98 }
99 
100 /*
101  * IntKeyboardUpdateLeds
102  *
103  * Sends the keyboard commands to turn on/off the lights
104  */
105 static
108  WORD wVk,
109  WORD wScanCode)
110 {
112  UINT i;
113  USHORT LedFlag = 0;
114  IO_STATUS_BLOCK Block;
115 
116  if (!gpKeyboardIndicatorTrans)
117  return STATUS_NOT_SUPPORTED;
118 
119  switch (wVk)
120  {
121  case VK_CAPITAL: LedFlag = KEYBOARD_CAPS_LOCK_ON; break;
122  case VK_NUMLOCK: LedFlag = KEYBOARD_NUM_LOCK_ON; break;
123  case VK_SCROLL: LedFlag = KEYBOARD_SCROLL_LOCK_ON; break;
124  default:
125  for (i = 0; i < gpKeyboardIndicatorTrans->NumberOfIndicatorKeys; i++)
126  {
127  if (gpKeyboardIndicatorTrans->IndicatorList[i].MakeCode == wScanCode)
128  {
129  LedFlag = gpKeyboardIndicatorTrans->IndicatorList[i].IndicatorFlags;
130  break;
131  }
132  }
133  }
134 
135  if (LedFlag)
136  {
137  gIndicators.LedFlags ^= LedFlag;
138 
139  /* Update the lights on the hardware */
140  Status = ZwDeviceIoControlFile(hKeyboardDevice,
141  NULL,
142  NULL,
143  NULL,
144  &Block,
146  &gIndicators, sizeof(gIndicators),
147  NULL, 0);
148 
149  return Status;
150  }
151 
152  return STATUS_SUCCESS;
153 }
154 
155 /*
156  * UserInitKeyboard
157  *
158  * Initializes keyboard indicators translation and their state
159  */
160 VOID NTAPI
161 UserInitKeyboard(HANDLE hKeyboardDevice)
162 {
164  IO_STATUS_BLOCK Block;
165 
166  IntKeyboardGetIndicatorTrans(hKeyboardDevice, &gpKeyboardIndicatorTrans);
167 
168  Status = ZwDeviceIoControlFile(hKeyboardDevice,
169  NULL,
170  NULL,
171  NULL,
172  &Block,
174  NULL, 0,
175  &gIndicators,
176  sizeof(gIndicators));
177 
178  if (!NT_SUCCESS(Status))
179  {
180  WARN("NtDeviceIoControlFile() failed, ignored\n");
181  gIndicators.LedFlags = 0;
182  gIndicators.UnitId = 0;
183  }
184 
186  gIndicators.LedFlags & KEYBOARD_CAPS_LOCK_ON);
188  gIndicators.LedFlags & KEYBOARD_NUM_LOCK_ON);
190  gIndicators.LedFlags & KEYBOARD_SCROLL_LOCK_ON);
191 
192  // FIXME: Need device driver to work! HID support more than one!!!!
193  Status = ZwDeviceIoControlFile(hKeyboardDevice,
194  NULL,
195  NULL,
196  NULL,
197  &Block,
199  NULL, 0,
200  &gKeyboardInfo, sizeof(gKeyboardInfo));
201 
202  if (!NT_SUCCESS(Status))
203  {
204  ERR("NtDeviceIoControlFile() failed, ignored\n");
205  }
206  TRACE("Keyboard type %u, subtype %u and number of func keys %u\n",
207  gKeyboardInfo.KeyboardIdentifier.Type,
208  gKeyboardInfo.KeyboardIdentifier.Subtype,
209  gKeyboardInfo.NumberOfFunctionKeys);
210 }
211 
212 /*
213  * IntSimplifyVk
214  *
215  * Changes virtual keys which distinguish between left and right hand, to keys which don't distinguish
216  */
217 static
218 WORD
220 {
221  switch (wVk)
222  {
223  case VK_LSHIFT:
224  case VK_RSHIFT:
225  return VK_SHIFT;
226 
227  case VK_LCONTROL:
228  case VK_RCONTROL:
229  return VK_CONTROL;
230 
231  case VK_LMENU:
232  case VK_RMENU:
233  return VK_MENU;
234 
235  default:
236  return wVk;
237  }
238 }
239 
240 /*
241  * IntFixVk
242  *
243  * Changes virtual keys which don't not distinguish between left and right hand to proper keys
244  */
245 static
246 WORD
247 IntFixVk(WORD wVk, BOOL bExt)
248 {
249  switch (wVk)
250  {
251  case VK_SHIFT:
252  return bExt ? VK_RSHIFT : VK_LSHIFT;
253 
254  case VK_CONTROL:
255  return bExt ? VK_RCONTROL : VK_LCONTROL;
256 
257  case VK_MENU:
258  return bExt ? VK_RMENU : VK_LMENU;
259 
260  default:
261  return wVk;
262  }
263 }
264 
265 /*
266  * IntTranslateNumpadKey
267  *
268  * Translates numpad keys when numlock is enabled
269  */
270 static
271 WORD
273 {
274  switch (wVk)
275  {
276  case VK_INSERT: return VK_NUMPAD0;
277  case VK_END: return VK_NUMPAD1;
278  case VK_DOWN: return VK_NUMPAD2;
279  case VK_NEXT: return VK_NUMPAD3;
280  case VK_LEFT: return VK_NUMPAD4;
281  case VK_CLEAR: return VK_NUMPAD5;
282  case VK_RIGHT: return VK_NUMPAD6;
283  case VK_HOME: return VK_NUMPAD7;
284  case VK_UP: return VK_NUMPAD8;
285  case VK_PRIOR: return VK_NUMPAD9;
286  case VK_DELETE: return VK_DECIMAL;
287  default: return wVk;
288  }
289 }
290 
291 /*
292  * IntGetModBits
293  *
294  * Gets layout specific modification bits, for example KBDSHIFT, KBDCTRL, KBDALT
295  */
296 static
297 DWORD
298 IntGetModBits(PKBDTABLES pKbdTbl, PBYTE pKeyState)
299 {
300  DWORD i, dwModBits = 0;
301 
302  /* DumpKeyState( KeyState ); */
303 
304  for (i = 0; pKbdTbl->pCharModifiers->pVkToBit[i].Vk; i++)
305  if (IS_KEY_DOWN(pKeyState, pKbdTbl->pCharModifiers->pVkToBit[i].Vk))
306  dwModBits |= pKbdTbl->pCharModifiers->pVkToBit[i].ModBits;
307 
308  TRACE("Current Mod Bits: %lx\n", dwModBits);
309 
310  return dwModBits;
311 }
312 
313 /*
314  * IntTranslateChar
315  *
316  * Translates virtual key to character
317  */
318 static
319 BOOL
321  PBYTE pKeyState,
322  PBOOL pbDead,
323  PBOOL pbLigature,
324  PWCHAR pwcTranslatedChar,
325  PKBDTABLES pKbdTbl)
326 {
327  PVK_TO_WCHAR_TABLE pVkToVchTbl;
328  PVK_TO_WCHARS10 pVkToVch;
329  DWORD i, dwModBits, dwVkModBits, dwModNumber = 0;
330  WCHAR wch;
331  BOOL bAltGr;
332  WORD wCaplokAttr;
333 
334  dwModBits = pKeyState ? IntGetModBits(pKbdTbl, pKeyState) : 0;
335  bAltGr = pKeyState && (pKbdTbl->fLocaleFlags & KLLF_ALTGR) && IS_KEY_DOWN(pKeyState, VK_RMENU);
336  wCaplokAttr = bAltGr ? CAPLOKALTGR : CAPLOK;
337 
338  TRACE("TryToTranslate: %04x %x\n", wVirtKey, dwModBits);
339 
340  /* If ALT without CTRL has ben used, remove ALT flag */
341  if ((dwModBits & (KBDALT|KBDCTRL)) == KBDALT)
342  dwModBits &= ~KBDALT;
343 
344  if (dwModBits > pKbdTbl->pCharModifiers->wMaxModBits)
345  {
346  TRACE("dwModBits %x > wMaxModBits %x\n", dwModBits, pKbdTbl->pCharModifiers->wMaxModBits);
347  return FALSE;
348  }
349 
350  for (i = 0; pKbdTbl->pVkToWcharTable[i].pVkToWchars; i++)
351  {
352  pVkToVchTbl = &pKbdTbl->pVkToWcharTable[i];
353  pVkToVch = (PVK_TO_WCHARS10)(pVkToVchTbl->pVkToWchars);
354  while (pVkToVch->VirtualKey)
355  {
356  if (wVirtKey == (pVkToVch->VirtualKey & 0xFF))
357  {
358  dwVkModBits = dwModBits;
359 
360  /* If CapsLock is enabled for this key and locked, add SHIFT bit */
361  if ((pVkToVch->Attributes & wCaplokAttr) &&
362  pKeyState &&
363  IS_KEY_LOCKED(pKeyState, VK_CAPITAL))
364  {
365  /* Note: we use special value here instead of getting VK_SHIFT mod bit - it's verified */
366  dwVkModBits ^= KBDSHIFT;
367  }
368 
369  if (dwVkModBits > pKbdTbl->pCharModifiers->wMaxModBits)
370  break;
371 
372  /* Get modification number */
373  dwModNumber = pKbdTbl->pCharModifiers->ModNumber[dwVkModBits];
374  if (dwModNumber >= pVkToVchTbl->nModifications)
375  {
376  TRACE("dwModNumber %u >= nModifications %u\n", dwModNumber, pVkToVchTbl->nModifications);
377  break;
378  }
379 
380  /* Read character */
381  wch = pVkToVch->wch[dwModNumber];
382  if (wch == WCH_NONE)
383  break;
384 
385  *pbDead = (wch == WCH_DEAD);
386  *pbLigature = (wch == WCH_LGTR);
387  *pwcTranslatedChar = wch;
388 
389  TRACE("%lu %04x: dwModNumber %08x Char %04x\n",
390  i, wVirtKey, dwModNumber, wch);
391 
392  if (*pbDead)
393  {
394  /* After WCH_DEAD, real character is located */
395  pVkToVch = (PVK_TO_WCHARS10)(((BYTE *)pVkToVch) + pVkToVchTbl->cbSize);
396  if (pVkToVch->VirtualKey != 0xFF)
397  {
398  WARN("Found dead key with no trailer in the table.\n");
399  WARN("VK: %04x, ADDR: %p\n", wVirtKey, pVkToVch);
400  break;
401  }
402  *pwcTranslatedChar = pVkToVch->wch[dwModNumber];
403  }
404  return TRUE;
405  }
406  pVkToVch = (PVK_TO_WCHARS10)(((BYTE *)pVkToVch) + pVkToVchTbl->cbSize);
407  }
408  }
409 
410  /* If nothing has been found in layout, check if this is ASCII control character.
411  Note: we could add it to layout table, but windows does not have it there */
412  if (wVirtKey >= 'A' && wVirtKey <= 'Z' &&
413  pKeyState && IS_KEY_DOWN(pKeyState, VK_CONTROL) &&
414  !IS_KEY_DOWN(pKeyState, VK_MENU))
415  {
416  *pwcTranslatedChar = (wVirtKey - 'A') + 1; /* ASCII control character */
417  *pbDead = FALSE;
418  *pbLigature = FALSE;
419  return TRUE;
420  }
421 
422  return FALSE;
423 }
424 
425 /*
426  * IntToUnicodeEx
427  *
428  * Translates virtual key to characters
429  */
430 static
431 int APIENTRY
433  UINT wScanCode,
434  PBYTE pKeyState,
435  LPWSTR pwszBuff,
436  int cchBuff,
437  UINT wFlags,
438  PKBDTABLES pKbdTbl)
439 {
440  WCHAR wchTranslatedChar;
441  BOOL bDead, bLigature;
442  static WCHAR wchDead = 0;
443  int iRet = 0;
444 
445  ASSERT(pKbdTbl);
446 
447  if (!IntTranslateChar(wVirtKey,
448  pKeyState,
449  &bDead,
450  &bLigature,
451  &wchTranslatedChar,
452  pKbdTbl))
453  {
454  return 0;
455  }
456 
457  if (bLigature)
458  {
459  WARN("Not handling ligature (yet)\n" );
460  return 0;
461  }
462 
463  /* If we got dead char in previous call check dead keys in keyboard layout */
464  if (wchDead)
465  {
466  UINT i;
467  WCHAR wchFirst, wchSecond;
468  TRACE("Previous dead char: %lc (%x)\n", wchDead, wchDead);
469 
470  if (pKbdTbl->pDeadKey)
471  {
472  for (i = 0; pKbdTbl->pDeadKey[i].dwBoth; i++)
473  {
474  wchFirst = pKbdTbl->pDeadKey[i].dwBoth >> 16;
475  wchSecond = pKbdTbl->pDeadKey[i].dwBoth & 0xFFFF;
476  if (wchFirst == wchDead && wchSecond == wchTranslatedChar)
477  {
478  wchTranslatedChar = pKbdTbl->pDeadKey[i].wchComposed;
479  wchDead = 0;
480  bDead = FALSE;
481  break;
482  }
483  }
484  }
485  else
486  {
487 #if defined(__GNUC__)
488  if (wchDead == 0x8000)
489  {
490  ERR("GCC is inventing bits, ignoring fake dead key\n");
491  wchDead = 0;
492  }
493 #endif
494  }
495 
496  TRACE("Final char: %lc (%x)\n", wchTranslatedChar, wchTranslatedChar);
497  }
498 
499  /* Dead char has not been not found */
500  if (wchDead)
501  {
502  /* Treat both characters normally */
503  if (cchBuff > iRet)
504  pwszBuff[iRet++] = wchDead;
505  bDead = FALSE;
506  }
507 
508  /* Add character to the buffer */
509  if (cchBuff > iRet)
510  pwszBuff[iRet++] = wchTranslatedChar;
511 
512  /* Save dead character */
513  wchDead = bDead ? wchTranslatedChar : 0;
514 
515  return bDead ? -iRet : iRet;
516 }
517 
518 /*
519  * IntVkToVsc
520  *
521  * Translates virtual key to scan code
522  */
523 static
526 {
527  unsigned i;
528 
529  ASSERT(pKbdTbl);
530 
531  /* Check standard keys first */
532  for (i = 0; i < pKbdTbl->bMaxVSCtoVK; i++)
533  {
534  if ((pKbdTbl->pusVSCtoVK[i] & 0xFF) == wVk)
535  return i;
536  }
537 
538  /* Check extended keys now */
539  for (i = 0; pKbdTbl->pVSCtoVK_E0[i].Vsc; i++)
540  {
541  if ((pKbdTbl->pVSCtoVK_E0[i].Vk & 0xFF) == wVk)
542  return 0xE000 | pKbdTbl->pVSCtoVK_E0[i].Vsc;
543  }
544 
545  for (i = 0; pKbdTbl->pVSCtoVK_E1[i].Vsc; i++)
546  {
547  if ((pKbdTbl->pVSCtoVK_E1[i].Vk & 0xFF) == wVk)
548  return 0xE100 | pKbdTbl->pVSCtoVK_E1[i].Vsc;
549  }
550 
551  /* Virtual key has not been found */
552  return 0;
553 }
554 
555 /*
556  * IntVscToVk
557  *
558  * Translates prefixed scancode to virtual key
559  */
560 static
562 IntVscToVk(WORD wScanCode, PKBDTABLES pKbdTbl)
563 {
564  unsigned i;
565  WORD wVk = 0;
566 
567  ASSERT(pKbdTbl);
568 
569  if ((wScanCode & 0xFF00) == 0xE000)
570  {
571  for (i = 0; pKbdTbl->pVSCtoVK_E0[i].Vsc; i++)
572  {
573  if (pKbdTbl->pVSCtoVK_E0[i].Vsc == (wScanCode & 0xFF))
574  {
575  wVk = pKbdTbl->pVSCtoVK_E0[i].Vk;
576  }
577  }
578  }
579  else if ((wScanCode & 0xFF00) == 0xE100)
580  {
581  for (i = 0; pKbdTbl->pVSCtoVK_E1[i].Vsc; i++)
582  {
583  if (pKbdTbl->pVSCtoVK_E1[i].Vsc == (wScanCode & 0xFF))
584  {
585  wVk = pKbdTbl->pVSCtoVK_E1[i].Vk;
586  }
587  }
588  }
589  else if (wScanCode < pKbdTbl->bMaxVSCtoVK)
590  {
591  wVk = pKbdTbl->pusVSCtoVK[wScanCode];
592  }
593 
594  /* 0xFF nad 0x00 are invalid VKs */
595  return wVk != 0xFF ? wVk : 0;
596 }
597 
598 /*
599  * IntVkToChar
600  *
601  * Translates virtual key to character, ignoring shift state
602  */
603 static
606 {
607  WCHAR wch;
608  BOOL bDead, bLigature;
609 
610  ASSERT(pKbdTbl);
611 
612  if (IntTranslateChar(wVk,
613  NULL,
614  &bDead,
615  &bLigature,
616  &wch,
617  pKbdTbl))
618  {
619  return wch;
620  }
621 
622  return 0;
623 }
624 
625 /*
626  * NtUserGetAsyncKeyState
627  *
628  * Gets key state from global bitmap
629  */
630 SHORT
631 APIENTRY
633 {
634  WORD wRet = 0;
635 
636  TRACE("Enter NtUserGetAsyncKeyState\n");
637 
638  if (Key >= 0x100)
639  {
641  ERR("Invalid parameter Key\n");
642  return 0;
643  }
644 
646 
647  if (IS_KEY_DOWN(gafAsyncKeyState, Key))
648  wRet |= 0x8000; // If down, windows returns 0x8000.
649  if (gafAsyncKeyStateRecentDown[Key / 8] & (1 << (Key % 8)))
650  wRet |= 0x1;
651  gafAsyncKeyStateRecentDown[Key / 8] &= ~(1 << (Key % 8));
652 
653  UserLeave();
654 
655  TRACE("Leave NtUserGetAsyncKeyState, ret=%u\n", wRet);
656  return wRet;
657 }
658 
659 /*
660  * UpdateAsyncKeyState
661  *
662  * Updates gafAsyncKeyState array
663  */
664 static
665 VOID NTAPI
667 {
668  if (bIsDown)
669  {
670  /* If it's first key down event, xor lock bit */
671  if (!IS_KEY_DOWN(gafAsyncKeyState, wVk))
673 
675  gafAsyncKeyStateRecentDown[wVk / 8] |= (1 << (wVk % 8));
676  }
677  else
679 }
680 
681 /*
682  * co_CallLowLevelKeyboardHook
683  *
684  * Calls WH_KEYBOARD_LL hook
685  */
686 static LRESULT
687 co_CallLowLevelKeyboardHook(WORD wVk, WORD wScanCode, DWORD dwFlags, BOOL bInjected, DWORD dwTime, DWORD dwExtraInfo)
688 {
689  KBDLLHOOKSTRUCT KbdHookData;
690  UINT uMsg;
691 
692  KbdHookData.vkCode = wVk;
693  KbdHookData.scanCode = wScanCode;
694  KbdHookData.flags = 0;
695  if (dwFlags & KEYEVENTF_EXTENDEDKEY)
696  KbdHookData.flags |= LLKHF_EXTENDED;
698  KbdHookData.flags |= LLKHF_ALTDOWN;
699  if (dwFlags & KEYEVENTF_KEYUP)
700  KbdHookData.flags |= LLKHF_UP;
701  if (bInjected)
702  KbdHookData.flags |= LLKHF_INJECTED;
703  KbdHookData.time = dwTime;
704  KbdHookData.dwExtraInfo = dwExtraInfo;
705 
706  /* Note: it doesnt support WM_SYSKEYUP */
707  if (dwFlags & KEYEVENTF_KEYUP)
708  uMsg = WM_KEYUP;
710  uMsg = WM_SYSKEYDOWN;
711  else
712  uMsg = WM_KEYDOWN;
713 
714  return co_HOOK_CallHooks(WH_KEYBOARD_LL, HC_ACTION, uMsg, (LPARAM)&KbdHookData);
715 }
716 
717 /*
718  * SnapWindow
719  *
720  * Saves snapshot of specified window or whole screen in the clipboard
721  */
722 static VOID
724 {
725  HBITMAP hbm = NULL, hbmOld;
726  HDC hdc = NULL, hdcMem;
727  SETCLIPBDATA scd;
728  INT cx, cy;
729  PWND pWnd = NULL;
730 
731  TRACE("SnapWindow(%p)\n", hWnd);
732 
733  /* If no windows is given, make snapshot of desktop window */
734  if (!hWnd)
735  hWnd = IntGetDesktopWindow();
736 
737  pWnd = UserGetWindowObject(hWnd);
738  if (!pWnd)
739  {
740  ERR("Invalid window\n");
741  goto cleanup;
742  }
743 
744  hdc = UserGetDCEx(pWnd, NULL, DCX_USESTYLE | DCX_WINDOW);
745  if (!hdc)
746  {
747  ERR("UserGetDCEx failed!\n");
748  goto cleanup;
749  }
750 
751  cx = pWnd->rcWindow.right - pWnd->rcWindow.left;
752  cy = pWnd->rcWindow.bottom - pWnd->rcWindow.top;
753 
754  hbm = NtGdiCreateCompatibleBitmap(hdc, cx, cy);
755  if (!hbm)
756  {
757  ERR("NtGdiCreateCompatibleBitmap failed!\n");
758  goto cleanup;
759  }
760 
761  hdcMem = NtGdiCreateCompatibleDC(hdc);
762  if (!hdcMem)
763  {
764  ERR("NtGdiCreateCompatibleDC failed!\n");
765  goto cleanup;
766  }
767 
768  hbmOld = NtGdiSelectBitmap(hdcMem, hbm);
769  NtGdiBitBlt(hdcMem, 0, 0, cx, cy, hdc, 0, 0, SRCCOPY, 0, 0);
770  NtGdiSelectBitmap(hdcMem, hbmOld);
771  IntGdiDeleteDC(hdcMem, FALSE);
772 
773  /* Save snapshot in clipboard */
774  if (UserOpenClipboard(NULL))
775  {
777  scd.fIncSerialNumber = TRUE;
778  scd.fGlobalHandle = FALSE;
779  if (UserSetClipboardData(CF_BITMAP, hbm, &scd))
780  {
781  /* Bitmap is managed by system now */
782  hbm = NULL;
783  }
785  }
786 
787 cleanup:
788  if (hbm)
789  GreDeleteObject(hbm);
790  if (hdc)
791  UserReleaseDC(pWnd, hdc, FALSE);
792 }
793 
794 /*
795  * UserSendKeyboardInput
796  *
797  * Process keyboard input from input devices and SendInput API
798  */
799 BOOL NTAPI
800 ProcessKeyEvent(WORD wVk, WORD wScanCode, DWORD dwFlags, BOOL bInjected, DWORD dwTime, DWORD dwExtraInfo)
801 {
802  WORD wSimpleVk = 0, wFixedVk, wVk2;
803  PUSER_MESSAGE_QUEUE pFocusQueue;
804  PTHREADINFO pti;
805  BOOL bExt = (dwFlags & KEYEVENTF_EXTENDEDKEY) ? TRUE : FALSE;
806  BOOL bIsDown = (dwFlags & KEYEVENTF_KEYUP) ? FALSE : TRUE;
807  BOOL bPacket = (dwFlags & KEYEVENTF_UNICODE) ? TRUE : FALSE;
808  BOOL bWasSimpleDown = FALSE, bPostMsg = TRUE, bIsSimpleDown;
809  MSG Msg;
810  static BOOL bMenuDownRecently = FALSE;
811 
812  /* Get virtual key without shifts (VK_(L|R)* -> VK_*) */
813  wSimpleVk = IntSimplifyVk(wVk);
814  bWasSimpleDown = IS_KEY_DOWN(gafAsyncKeyState, wSimpleVk);
815 
816  /* Update key without shifts */
817  wVk2 = IntFixVk(wSimpleVk, !bExt);
818  bIsSimpleDown = bIsDown || IS_KEY_DOWN(gafAsyncKeyState, wVk2);
819  UpdateAsyncKeyState(wSimpleVk, bIsSimpleDown);
820 
821  if (bIsDown)
822  {
823  /* Update keyboard LEDs */
825  wSimpleVk,
826  wScanCode);
827  }
828 
829  /* Call WH_KEYBOARD_LL hook */
830  if (co_CallLowLevelKeyboardHook(wVk, wScanCode, dwFlags, bInjected, dwTime, dwExtraInfo))
831  {
832  ERR("Kbd msg dropped by WH_KEYBOARD_LL hook\n");
833  bPostMsg = FALSE;
834  }
835 
836  /* Check if this is a hotkey */
837  if (co_UserProcessHotKeys(wSimpleVk, bIsDown))
838  {
839  TRACE("HotKey Processed\n");
840  bPostMsg = FALSE;
841  }
842 
843  wFixedVk = IntFixVk(wSimpleVk, bExt); /* LSHIFT + EXT = RSHIFT */
844  if (wSimpleVk == VK_SHIFT) /* shift can't be extended */
845  bExt = FALSE;
846 
847  /* If we have a focus queue, post a keyboard message */
848  pFocusQueue = IntGetFocusMessageQueue();
849  TRACE("ProcessKeyEvent Q 0x%p Active pWnd 0x%p Focus pWnd 0x%p\n",
850  pFocusQueue,
851  (pFocusQueue ? pFocusQueue->spwndActive : 0),
852  (pFocusQueue ? pFocusQueue->spwndFocus : 0));
853 
854  /* If it is F10 or ALT is down and CTRL is up, it's a system key */
855  if ( wVk == VK_F10 ||
856  (wSimpleVk == VK_MENU && bMenuDownRecently) ||
859  // See MSDN WM_SYSKEYDOWN/UP fixes last wine Win test_keyboard_input.
860  (pFocusQueue && !pFocusQueue->spwndFocus) )
861  {
862  bMenuDownRecently = FALSE; // reset
863  if (bIsDown)
864  {
865  Msg.message = WM_SYSKEYDOWN;
866  if (wSimpleVk == VK_MENU)
867  {
868  // Note: If only LALT is pressed WM_SYSKEYUP is generated instead of WM_KEYUP
869  bMenuDownRecently = TRUE;
870  }
871  }
872  else
873  Msg.message = WM_SYSKEYUP;
874  }
875  else
876  {
877  if (bIsDown)
878  Msg.message = WM_KEYDOWN;
879  else
880  Msg.message = WM_KEYUP;
881  }
882 
883  /* Update async state of not simplified vk here.
884  See user32_apitest:GetKeyState */
885  UpdateAsyncKeyState(wFixedVk, bIsDown);
886 
887  /* Alt-Tab/Esc Check. Use FocusQueue or RIT Queue */
888  if (bIsSimpleDown && !bWasSimpleDown &&
891  (wVk == VK_ESCAPE || wVk == VK_TAB))
892  {
893  TRACE("Alt-Tab/Esc Pressed wParam %x\n",wVk);
894  }
895 
896  if (bIsDown && wVk == VK_SNAPSHOT)
897  {
898  if (pFocusQueue &&
901  {
902  // Snap from Active Window, Focus can be null.
903  SnapWindow(pFocusQueue->spwndActive ? UserHMGetHandle(pFocusQueue->spwndActive) : 0);
904  }
905  else
906  SnapWindow(NULL); // Snap Desktop.
907  }
908  else if (pFocusQueue && bPostMsg)
909  {
910  PWND Wnd = pFocusQueue->spwndFocus; // SysInit.....
911 
912  pti = pFocusQueue->ptiKeyboard;
913 
914  if (!Wnd && pFocusQueue->spwndActive) // SysInit.....
915  {
916  // Going with Active. WM_SYSKEYXXX last wine Win test_keyboard_input.
917  Wnd = pFocusQueue->spwndActive;
918  }
919  if (Wnd) pti = Wnd->head.pti;
920 
921  /* Init message */
922  Msg.hwnd = Wnd ? UserHMGetHandle(Wnd) : NULL;
923  Msg.wParam = wFixedVk & 0xFF; /* Note: It's simplified by msg queue */
924  Msg.lParam = MAKELPARAM(1, wScanCode);
925  Msg.time = dwTime;
926  Msg.pt = gpsi->ptCursor;
927 
928  if ( Msg.message == WM_KEYDOWN || Msg.message == WM_SYSKEYDOWN )
929  {
930  if ( (Msg.wParam == VK_SHIFT ||
931  Msg.wParam == VK_CONTROL ||
932  Msg.wParam == VK_MENU ) &&
933  !IS_KEY_DOWN(gafAsyncKeyState, Msg.wParam))
934  {
935  ERR("Set last input\n");
936  //ptiLastInput = pti;
937  }
938  }
939 
940  /* If it is VK_PACKET, high word of wParam is used for wchar */
941  if (!bPacket)
942  {
943  if (bExt)
944  Msg.lParam |= KF_EXTENDED << 16;
946  Msg.lParam |= KF_ALTDOWN << 16;
947  if (bWasSimpleDown)
948  Msg.lParam |= KF_REPEAT << 16;
949  if (!bIsDown)
950  Msg.lParam |= KF_UP << 16;
951  /* FIXME: Set KF_DLGMODE and KF_MENUMODE when needed */
952  if (pFocusQueue->QF_flags & QF_DIALOGACTIVE)
953  Msg.lParam |= KF_DLGMODE << 16;
954  if (pFocusQueue->MenuOwner) // pti->pMenuState->fMenuStarted
955  Msg.lParam |= KF_MENUMODE << 16;
956  }
957 
958  // Post mouse move before posting key buttons, to keep it syned.
959  if (pFocusQueue->QF_flags & QF_MOUSEMOVED)
960  {
962  }
963 
964  /* Post a keyboard message */
965  TRACE("Posting keyboard msg %u wParam 0x%x lParam 0x%x\n", Msg.message, Msg.wParam, Msg.lParam);
966  if (!Wnd) {ERR("Window is NULL\n");}
967  MsqPostMessage(pti, &Msg, TRUE, QS_KEY, 0, dwExtraInfo);
968  }
969  return TRUE;
970 }
971 
972 BOOL NTAPI
973 UserSendKeyboardInput(KEYBDINPUT *pKbdInput, BOOL bInjected)
974 {
975  WORD wScanCode, wVk;
976  PKL pKl = NULL;
977  PKBDTABLES pKbdTbl;
978  PUSER_MESSAGE_QUEUE pFocusQueue;
979  LARGE_INTEGER LargeTickCount;
980  DWORD dwTime;
981  BOOL bExt = (pKbdInput->dwFlags & KEYEVENTF_EXTENDEDKEY) ? TRUE : FALSE;
982 
984 
985  /* Find the target thread whose locale is in effect */
986  pFocusQueue = IntGetFocusMessageQueue();
987 
988  if (pFocusQueue && pFocusQueue->ptiKeyboard)
989  {
990  pKl = pFocusQueue->ptiKeyboard->KeyboardLayout;
991  }
992 
993  if (!pKl)
994  pKl = W32kGetDefaultKeyLayout();
995  if (!pKl)
996  {
997  ERR("No keyboard layout!\n");
998  return FALSE;
999  }
1000 
1001  pKbdTbl = pKl->spkf->pKbdTbl;
1002 
1003  /* Note: wScan field is always used */
1004  wScanCode = pKbdInput->wScan;
1005 
1006  if (pKbdInput->dwFlags & KEYEVENTF_UNICODE)
1007  {
1008  /* Generate WM_KEYDOWN msg with wParam == VK_PACKET and
1009  high order word of lParam == pKbdInput->wScan */
1010  wVk = VK_PACKET;
1011  }
1012  else
1013  {
1014  wScanCode &= 0x7F;
1015  if (pKbdInput->dwFlags & KEYEVENTF_SCANCODE)
1016  {
1017  /* Don't ignore invalid scan codes */
1018  wVk = IntVscToVk(wScanCode | (bExt ? 0xE000 : 0), pKbdTbl);
1019  if (!wVk) /* use 0xFF if vsc is invalid */
1020  wVk = 0xFF;
1021  }
1022  else
1023  {
1024  wVk = pKbdInput->wVk & 0xFF;
1025  }
1026  }
1027 
1028  /* If time is given, use it */
1029  if (pKbdInput->time)
1030  dwTime = pKbdInput->time;
1031  else
1032  {
1033  KeQueryTickCount(&LargeTickCount);
1034  dwTime = MsqCalculateMessageTime(&LargeTickCount);
1035  }
1036 
1037  if (wVk == VK_RMENU && (pKbdTbl->fLocaleFlags & KLLF_ALTGR))
1038  {
1039  /* For AltGr keyboards RALT generates CTRL events */
1040  ProcessKeyEvent(VK_LCONTROL, 0, pKbdInput->dwFlags & KEYEVENTF_KEYUP, bInjected, dwTime, 0);
1041  }
1042 
1043  /* Finally process this key */
1044  return ProcessKeyEvent(wVk, wScanCode, pKbdInput->dwFlags, bInjected, dwTime, pKbdInput->dwExtraInfo);
1045 }
1046 
1047 /*
1048  * UserProcessKeyboardInput
1049  *
1050  * Process raw keyboard input data
1051  */
1052 VOID NTAPI
1054  PKEYBOARD_INPUT_DATA pKbdInputData)
1055 {
1056  WORD wScanCode, wVk;
1057  PKL pKl = NULL;
1058  PKBDTABLES pKbdTbl;
1059  PUSER_MESSAGE_QUEUE pFocusQueue;
1060 
1061  /* Calculate scan code with prefix */
1062  wScanCode = pKbdInputData->MakeCode & 0x7F;
1063  if (pKbdInputData->Flags & KEY_E0)
1064  wScanCode |= 0xE000;
1065  if (pKbdInputData->Flags & KEY_E1)
1066  wScanCode |= 0xE100;
1067 
1068  /* Find the target thread whose locale is in effect */
1069  pFocusQueue = IntGetFocusMessageQueue();
1070 
1071  if (pFocusQueue && pFocusQueue->ptiKeyboard)
1072  {
1073  pKl = pFocusQueue->ptiKeyboard->KeyboardLayout;
1074  }
1075 
1076  if (!pKl)
1077  pKl = W32kGetDefaultKeyLayout();
1078  if (!pKl)
1079  return;
1080 
1081  pKbdTbl = pKl->spkf->pKbdTbl;
1082 
1083  /* Convert scan code to virtual key.
1084  Note: We could call UserSendKeyboardInput using scan code,
1085  but it wouldn't interpret E1 key(s) properly */
1086  wVk = IntVscToVk(wScanCode, pKbdTbl);
1087  TRACE("UserProcessKeyboardInput: %x (break: %u) -> %x\n",
1088  wScanCode, (pKbdInputData->Flags & KEY_BREAK) ? 1u : 0, wVk);
1089 
1090  if (wVk)
1091  {
1092  KEYBDINPUT KbdInput;
1093 
1094  /* Support numlock */
1096  {
1097  wVk = IntTranslateNumpadKey(wVk & 0xFF);
1098  }
1099 
1100  /* Send keyboard input */
1101  KbdInput.wVk = wVk & 0xFF;
1102  KbdInput.wScan = wScanCode & 0x7F;
1103  KbdInput.dwFlags = 0;
1104  if (pKbdInputData->Flags & KEY_BREAK)
1105  KbdInput.dwFlags |= KEYEVENTF_KEYUP;
1106 
1107  if (wVk & KBDEXT)
1108  KbdInput.dwFlags |= KEYEVENTF_EXTENDEDKEY;
1109  //
1110  // Based on wine input:test_Input_blackbox this is okay. It seems the
1111  // bit did not get set and more research is needed. Now the right
1112  // shift works.
1113  //
1114  if (wVk == VK_RSHIFT)
1115  KbdInput.dwFlags |= KEYEVENTF_EXTENDEDKEY;
1116 
1117  KbdInput.time = 0;
1118  KbdInput.dwExtraInfo = pKbdInputData->ExtraInformation;
1119  UserSendKeyboardInput(&KbdInput, FALSE);
1120 
1121  /* E1 keys don't have break code */
1122  if (pKbdInputData->Flags & KEY_E1)
1123  {
1124  /* Send key up event */
1125  KbdInput.dwFlags |= KEYEVENTF_KEYUP;
1126  UserSendKeyboardInput(&KbdInput, FALSE);
1127  }
1128  }
1129 }
1130 
1131 /*
1132  * IntTranslateKbdMessage
1133  *
1134  * Addes WM_(SYS)CHAR messages to message queue if message
1135  * describes key which produce character.
1136  */
1137 BOOL FASTCALL
1139  UINT flags)
1140 {
1141  PTHREADINFO pti;
1142  INT cch = 0, i;
1143  WCHAR wch[3] = { 0 };
1144  MSG NewMsg = { 0 };
1145  PKBDTABLES pKbdTbl;
1146  LARGE_INTEGER LargeTickCount;
1147  BOOL bResult = FALSE;
1148 
1149  switch(lpMsg->message)
1150  {
1151  case WM_KEYDOWN:
1152  case WM_KEYUP:
1153  case WM_SYSKEYDOWN:
1154  case WM_SYSKEYUP:
1155  break;
1156  default:
1157  return FALSE;
1158  }
1159 
1161 
1162  if (!pti->KeyboardLayout)
1163  {
1165  pti->pClientInfo->hKL = pti->KeyboardLayout ? pti->KeyboardLayout->hkl : NULL;
1166  pKbdTbl = pti->KeyboardLayout ? pti->KeyboardLayout->spkf->pKbdTbl : NULL;
1167  }
1168  else
1169  pKbdTbl = pti->KeyboardLayout->spkf->pKbdTbl;
1170  if (!pKbdTbl)
1171  return FALSE;
1172 
1173  if (lpMsg->message != WM_KEYDOWN && lpMsg->message != WM_SYSKEYDOWN)
1174  return FALSE;
1175 
1176  /* Init pt, hwnd and time msg fields */
1177  NewMsg.pt = gpsi->ptCursor;
1178  NewMsg.hwnd = lpMsg->hwnd;
1179  KeQueryTickCount(&LargeTickCount);
1180  NewMsg.time = MsqCalculateMessageTime(&LargeTickCount);
1181 
1182  TRACE("Enter IntTranslateKbdMessage msg %s, vk %x\n",
1183  lpMsg->message == WM_SYSKEYDOWN ? "WM_SYSKEYDOWN" : "WM_KEYDOWN", lpMsg->wParam);
1184 
1185  if (lpMsg->wParam == VK_PACKET)
1186  {
1187  NewMsg.message = (lpMsg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
1188  NewMsg.wParam = HIWORD(lpMsg->lParam);
1189  NewMsg.lParam = LOWORD(lpMsg->lParam);
1190  MsqPostMessage(pti, &NewMsg, FALSE, QS_KEY, 0, 0);
1191  return TRUE;
1192  }
1193 
1194  cch = IntToUnicodeEx(lpMsg->wParam,
1195  HIWORD(lpMsg->lParam) & 0xFF,
1196  pti->MessageQueue->afKeyState,
1197  wch,
1198  sizeof(wch) / sizeof(wch[0]),
1199  0,
1200  pKbdTbl);
1201 
1202  if (cch)
1203  {
1204  if (cch > 0) /* Normal characters */
1205  NewMsg.message = (lpMsg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
1206  else /* Dead character */
1207  {
1208  cch = -cch;
1209  NewMsg.message =
1210  (lpMsg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
1211  }
1212  NewMsg.lParam = lpMsg->lParam;
1213 
1214  /* Send all characters */
1215  for (i = 0; i < cch; ++i)
1216  {
1217  TRACE("Msg: %x '%lc' (%04x) %08x\n", NewMsg.message, wch[i], wch[i], NewMsg.lParam);
1218  NewMsg.wParam = wch[i];
1219  MsqPostMessage(pti, &NewMsg, FALSE, QS_KEY, 0, 0);
1220  }
1221  bResult = TRUE;
1222  }
1223 
1224  TRACE("Leave IntTranslateKbdMessage ret %d, cch %d, msg %x, wch %x\n",
1225  bResult, cch, NewMsg.message, NewMsg.wParam);
1226  return bResult;
1227 }
1228 
1229 /*
1230  * Map a virtual key code, or virtual scan code, to a scan code, key code,
1231  * or unshifted unicode character.
1232  *
1233  * Code: See Below
1234  * Type:
1235  * 0 -- Code is a virtual key code that is converted into a virtual scan code
1236  * that does not distinguish between left and right shift keys.
1237  * 1 -- Code is a virtual scan code that is converted into a virtual key code
1238  * that does not distinguish between left and right shift keys.
1239  * 2 -- Code is a virtual key code that is converted into an unshifted unicode
1240  * character.
1241  * 3 -- Code is a virtual scan code that is converted into a virtual key code
1242  * that distinguishes left and right shift keys.
1243  * KeyLayout: Keyboard layout handle
1244  *
1245  * @implemented
1246  */
1247 static UINT
1249 {
1250  UINT uRet = 0;
1251 
1252  switch (Type)
1253  {
1254  case MAPVK_VK_TO_VSC:
1255  uCode = IntFixVk(uCode, FALSE);
1256  uRet = IntVkToVsc(uCode, pKbdTbl);
1257  if (uRet > 0xFF) // Fail for scancodes with prefix (e0, e1)
1258  uRet = 0;
1259  break;
1260 
1261  case MAPVK_VSC_TO_VK:
1262  uRet = IntVscToVk(uCode, pKbdTbl) & 0xFF;
1263  uRet = IntSimplifyVk(uRet);
1264  break;
1265 
1266  case MAPVK_VK_TO_CHAR:
1267  uRet = (UINT)IntVkToChar(uCode, pKbdTbl);
1268  break;
1269 
1270  case MAPVK_VSC_TO_VK_EX:
1271  uRet = IntVscToVk(uCode, pKbdTbl) & 0xFF;
1272  break;
1273 
1274  case MAPVK_VK_TO_VSC_EX:
1275  uRet = IntVkToVsc(uCode, pKbdTbl);
1276  break;
1277 
1278  default:
1280  ERR("Wrong type value: %u\n", Type);
1281  }
1282 
1283  return uRet;
1284 }
1285 
1286 /*
1287  * NtUserMapVirtualKeyEx
1288  *
1289  * Map a virtual key code, or virtual scan code, to a scan code, key code,
1290  * or unshifted unicode character. See IntMapVirtualKeyEx.
1291  */
1292 UINT
1293 APIENTRY
1294 NtUserMapVirtualKeyEx(UINT uCode, UINT uType, DWORD keyboardId, HKL dwhkl)
1295 {
1296  PKBDTABLES pKbdTbl = NULL;
1297  UINT ret = 0;
1298 
1299  TRACE("Enter NtUserMapVirtualKeyEx\n");
1300  UserEnterShared();
1301 
1302  if (!dwhkl)
1303  {
1304  PTHREADINFO pti;
1305 
1307  if (pti && pti->KeyboardLayout)
1308  pKbdTbl = pti->KeyboardLayout->spkf->pKbdTbl;
1309  }
1310  else
1311  {
1312  PKL pKl;
1313 
1314  pKl = UserHklToKbl(dwhkl);
1315  if (pKl)
1316  pKbdTbl = pKl->spkf->pKbdTbl;
1317  }
1318 
1319  if (pKbdTbl)
1320  ret = IntMapVirtualKeyEx(uCode, uType, pKbdTbl);
1321 
1322  UserLeave();
1323  TRACE("Leave NtUserMapVirtualKeyEx, ret=%u\n", ret);
1324  return ret;
1325 }
1326 
1327 /*
1328  * NtUserToUnicodeEx
1329  *
1330  * Translates virtual key to characters
1331  */
1332 int
1333 APIENTRY
1335  UINT wVirtKey,
1336  UINT wScanCode,
1337  PBYTE pKeyStateUnsafe,
1338  LPWSTR pwszBuffUnsafe,
1339  INT cchBuff,
1340  UINT wFlags,
1341  HKL dwhkl)
1342 {
1343  PTHREADINFO pti;
1344  BYTE afKeyState[256 * 2 / 8] = {0};
1345  PWCHAR pwszBuff = NULL;
1346  INT i, iRet = 0;
1347  PKL pKl = NULL;
1348 
1349  TRACE("Enter NtUserSetKeyboardState\n");
1350 
1351  /* Return 0 if SC_KEY_UP bit is set */
1352  if (wScanCode & SC_KEY_UP || wVirtKey >= 0x100)
1353  {
1354  ERR("Invalid parameter\n");
1355  return 0;
1356  }
1357 
1358  _SEH2_TRY
1359  {
1360  /* Probe and copy key state to smaller bitmap */
1361  ProbeForRead(pKeyStateUnsafe, 256 * sizeof(BYTE), 1);
1362  for (i = 0; i < 256; ++i)
1363  {
1364  if (pKeyStateUnsafe[i] & KS_DOWN_BIT)
1365  SET_KEY_DOWN(afKeyState, i, TRUE);
1366  if (pKeyStateUnsafe[i] & KS_LOCK_BIT)
1367  SET_KEY_LOCKED(afKeyState, i, TRUE);
1368  }
1369  }
1371  {
1372  ERR("Cannot copy key state\n");
1374  _SEH2_YIELD(return 0);
1375  }
1376  _SEH2_END;
1377 
1378  pwszBuff = ExAllocatePoolWithTag(NonPagedPool, sizeof(WCHAR) * cchBuff, TAG_STRING);
1379  if (!pwszBuff)
1380  {
1381  ERR("ExAllocatePoolWithTag(%u) failed\n", sizeof(WCHAR) * cchBuff);
1382  return 0;
1383  }
1384  RtlZeroMemory(pwszBuff, sizeof(WCHAR) * cchBuff);
1385 
1386  UserEnterExclusive(); // Note: We modify wchDead static variable
1387 
1388  if (dwhkl)
1389  pKl = UserHklToKbl(dwhkl);
1390 
1391  if (!pKl)
1392  {
1394  pKl = pti->KeyboardLayout;
1395  }
1396 
1397  iRet = IntToUnicodeEx(wVirtKey,
1398  wScanCode,
1399  afKeyState,
1400  pwszBuff,
1401  cchBuff,
1402  wFlags,
1403  pKl ? pKl->spkf->pKbdTbl : NULL);
1404 
1405  MmCopyToCaller(pwszBuffUnsafe, pwszBuff, cchBuff * sizeof(WCHAR));
1406  ExFreePoolWithTag(pwszBuff, TAG_STRING);
1407 
1408  UserLeave();
1409  TRACE("Leave NtUserSetKeyboardState, ret=%i\n", iRet);
1410  return iRet;
1411 }
1412 
1413 /*
1414  * NtUserGetKeyNameText
1415  *
1416  * Gets key name from keyboard layout
1417  */
1418 DWORD
1419 APIENTRY
1420 NtUserGetKeyNameText(LONG lParam, LPWSTR lpString, int cchSize)
1421 {
1422  PTHREADINFO pti;
1423  DWORD i, dwRet = 0;
1424  SIZE_T cchKeyName;
1425  WORD wScanCode = (lParam >> 16) & 0xFF;
1426  BOOL bExtKey = (HIWORD(lParam) & KF_EXTENDED) ? TRUE : FALSE;
1427  PKBDTABLES pKbdTbl;
1428  VSC_LPWSTR *pKeyNames = NULL;
1429  CONST WCHAR *pKeyName = NULL;
1430  WCHAR KeyNameBuf[2];
1431 
1432  TRACE("Enter NtUserGetKeyNameText\n");
1433 
1434  UserEnterShared();
1435 
1436  /* Get current keyboard layout */
1438  pKbdTbl = pti ? pti->KeyboardLayout->spkf->pKbdTbl : 0;
1439 
1440  if (!pKbdTbl || cchSize < 1)
1441  {
1442  ERR("Invalid parameter\n");
1443  goto cleanup;
1444  }
1445 
1446  /* "Do not care" flag */
1447  if(lParam & LP_DO_NOT_CARE_BIT)
1448  {
1449  /* Note: We could do vsc -> vk -> vsc conversion, instead of using
1450  hardcoded scan codes, but it's not what Windows does */
1451  if (wScanCode == SCANCODE_RSHIFT && !bExtKey)
1452  wScanCode = SCANCODE_LSHIFT;
1453  else if (wScanCode == SCANCODE_CTRL || wScanCode == SCANCODE_ALT)
1454  bExtKey = FALSE;
1455  }
1456 
1457  if (bExtKey)
1458  pKeyNames = pKbdTbl->pKeyNamesExt;
1459  else
1460  pKeyNames = pKbdTbl->pKeyNames;
1461 
1462  for (i = 0; pKeyNames[i].pwsz; i++)
1463  {
1464  if (pKeyNames[i].vsc == wScanCode)
1465  {
1466  pKeyName = pKeyNames[i].pwsz;
1467  break;
1468  }
1469  }
1470 
1471  if (!pKeyName)
1472  {
1473  WORD wVk = IntVscToVk(wScanCode, pKbdTbl);
1474 
1475  if (wVk)
1476  {
1477  KeyNameBuf[0] = IntVkToChar(wVk, pKbdTbl);
1478  KeyNameBuf[1] = 0;
1479  if (KeyNameBuf[0])
1480  pKeyName = KeyNameBuf;
1481  }
1482  }
1483 
1484  if (pKeyName)
1485  {
1486  cchKeyName = wcslen(pKeyName);
1487  if (cchKeyName > (cchSize - 1UL))
1488  cchKeyName = cchSize - 1UL; // Don't count '\0'
1489 
1490  _SEH2_TRY
1491  {
1492  ProbeForWrite(lpString, (cchKeyName + 1) * sizeof(WCHAR), 1);
1493  RtlCopyMemory(lpString, pKeyName, cchKeyName * sizeof(WCHAR));
1494  lpString[cchKeyName] = UNICODE_NULL;
1495  dwRet = cchKeyName;
1496  }
1498  {
1500  }
1501  _SEH2_END;
1502  }
1503  else
1504  {
1506  }
1507 
1508 cleanup:
1509  UserLeave();
1510  TRACE("Leave NtUserGetKeyNameText, ret=%lu\n", dwRet);
1511  return dwRet;
1512 }
1513 
1514 /*
1515  * UserGetKeyboardType
1516  *
1517  * Returns some keyboard specific information
1518  */
1521  DWORD dwTypeFlag)
1522 {
1523  switch (dwTypeFlag)
1524  {
1525  case 0: /* Keyboard type */
1526  return (DWORD)gKeyboardInfo.KeyboardIdentifier.Type;
1527  case 1: /* Keyboard Subtype */
1528  return (DWORD)gKeyboardInfo.KeyboardIdentifier.Subtype;
1529  case 2: /* Number of F-keys */
1530  return (DWORD)gKeyboardInfo.NumberOfFunctionKeys;
1531  default:
1532  ERR("Unknown type!\n");
1533  return 0; /* Note: we don't have to set last error here */
1534  }
1535 }
1536 
1537 /*
1538  * NtUserVkKeyScanEx
1539  *
1540  * Based on IntTranslateChar, instead of processing VirtualKey match,
1541  * look for wChar match.
1542  */
1543 DWORD
1544 APIENTRY
1546  WCHAR wch,
1547  HKL dwhkl,
1548  BOOL bUsehKL)
1549 {
1550  PKBDTABLES pKbdTbl;
1551  PVK_TO_WCHAR_TABLE pVkToWchTbl;
1552  PVK_TO_WCHARS10 pVkToWch;
1553  PKL pKl = NULL;
1554  DWORD i, dwModBits = 0, dwModNumber = 0, Ret = (DWORD)-1;
1555 
1556  TRACE("NtUserVkKeyScanEx() wch %u, KbdLayout 0x%p\n", wch, dwhkl);
1557  UserEnterShared();
1558 
1559  if (bUsehKL)
1560  {
1561  // Use given keyboard layout
1562  if (dwhkl)
1563  pKl = UserHklToKbl(dwhkl);
1564  }
1565  else
1566  {
1567  // Use thread keyboard layout
1569  }
1570 
1571  if (!pKl)
1572  goto Exit;
1573 
1574  pKbdTbl = pKl->spkf->pKbdTbl;
1575 
1576  // Interate through all VkToWchar tables while pVkToWchars is not NULL
1577  for (i = 0; pKbdTbl->pVkToWcharTable[i].pVkToWchars; i++)
1578  {
1579  pVkToWchTbl = &pKbdTbl->pVkToWcharTable[i];
1580  pVkToWch = (PVK_TO_WCHARS10)(pVkToWchTbl->pVkToWchars);
1581 
1582  // Interate through all virtual keys
1583  while (pVkToWch->VirtualKey)
1584  {
1585  for (dwModNumber = 0; dwModNumber < pVkToWchTbl->nModifications; dwModNumber++)
1586  {
1587  if (pVkToWch->wch[dwModNumber] == wch)
1588  {
1589  dwModBits = pKbdTbl->pCharModifiers->ModNumber[dwModNumber];
1590  TRACE("i %lu wC %04x: dwModBits %08x dwModNumber %08x MaxModBits %08x\n",
1591  i, wch, dwModBits, dwModNumber, pKbdTbl->pCharModifiers->wMaxModBits);
1592  Ret = (dwModBits << 8) | (pVkToWch->VirtualKey & 0xFF);
1593  goto Exit;
1594  }
1595  }
1596  pVkToWch = (PVK_TO_WCHARS10)(((BYTE *)pVkToWch) + pVkToWchTbl->cbSize);
1597  }
1598  }
1599 Exit:
1600  UserLeave();
1601  return Ret;
1602 }
1603 
1604 /* EOF */
WCHAR wchComposed
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Definition: winuser.h:2403
#define VK_CONTROL
Definition: winuser.h:2157
DWORD FASTCALL UserGetKeyboardType(DWORD dwTypeFlag)
Definition: keyboard.c:1520
_Out_opt_ int * cx
Definition: commctrl.h:570
PKBDFILE spkf
Definition: input.h:33
#define KS_DOWN_BIT
Definition: input.h:54
#define WM_SYSKEYDOWN
Definition: winuser.h:1695
#define IOCTL_KEYBOARD_QUERY_ATTRIBUTES
Definition: ntddkbd.h:32
BYTE bMaxVSCtoVK
Definition: kbd.h:103
#define KEYBOARD_NUM_LOCK_ON
Definition: ntddkbd.h:82
#define STATUS_NOT_SUPPORTED
Definition: ntstatus.h:409
#define HIWORD(l)
Definition: typedefs.h:246
NTSTATUS APIENTRY IntKeyboardGetIndicatorTrans(HANDLE hKeyboardDevice, PKEYBOARD_INDICATOR_TRANSLATION *ppIndicatorTrans)
Definition: keyboard.c:50
LONG bottom
Definition: windef.h:299
#define RtlZeroMemory(Destination, Length)
Definition: typedefs.h:261
KEYBOARD_ATTRIBUTES gKeyboardInfo
Definition: keyboard.c:17
#define IS_KEY_DOWN(ks, vk)
Definition: input.h:98
char * cleanup(char *str)
Definition: wpickclick.c:99
ULONG_PTR dwExtraInfo
Definition: winable.h:51
#define _SEH2_EXCEPT(...)
Definition: pseh2_64.h:6
#define VK_CLEAR
Definition: winuser.h:2154
#define ExFreePoolWithTag(_P, _T)
Definition: module.h:1099
#define _SEH2_GetExceptionCode()
Definition: pseh2_64.h:12
WCHAR * LPWSTR
Definition: xmlstorage.h:184
#define IOCTL_KEYBOARD_SET_INDICATORS
Definition: ntddkbd.h:47
LONG_PTR LRESULT
Definition: windef.h:209
#define VK_LCONTROL
Definition: winuser.h:2238
#define VK_NUMPAD1
Definition: winuser.h:2194
#define QS_KEY
Definition: winuser.h:883
ULONG_PTR dwExtraInfo
Definition: winuser.h:3754
UINT message
Definition: winuser.h:3068
#define UINT
Definition: msvc.h:27
return STATUS_SUCCESS
Definition: btrfs.c:2725
#define SET_KEY_LOCKED(ks, vk, down)
Definition: input.h:103
#define QF_MOUSEMOVED
Definition: msgqueue.h:99
#define LP_DO_NOT_CARE_BIT
Definition: input.h:59
#define UL
Definition: tui.h:70
PVSC_VK pVSCtoVK_E1
Definition: kbd.h:105
BYTE * PBYTE
Definition: pedump.c:66
LPARAM lParam
Definition: combotst.c:139
#define VK_SNAPSHOT
Definition: winuser.h:2185
#define LOWORD(l)
Definition: pedump.c:82
WORD wVk
Definition: winable.h:47
#define VK_END
Definition: winuser.h:2176
size_t __cdecl wcslen(_In_z_ const wchar_t *_Str)
#define SRCCOPY
Definition: wingdi.h:331
PSDBQUERYRESULT_VISTA PVOID DWORD * dwSize
Definition: env.c:54
HANDLE NTAPI UserSetClipboardData(UINT fmt, HANDLE hData, PSETCLIPBDATA scd)
Definition: clipboard.c:995
ENGAPI VOID APIENTRY EngSetLastError(_In_ ULONG iError)
Definition: error.c:27
HDC hdcMem
Definition: welcome.c:104
int APIENTRY NtUserToUnicodeEx(UINT wVirtKey, UINT wScanCode, PBYTE pKeyStateUnsafe, LPWSTR pwszBuffUnsafe, INT cchBuff, UINT wFlags, HKL dwhkl)
Definition: keyboard.c:1334
KeyboardLayout
Definition: utils.h:36
PKL NTAPI UserHklToKbl(HKL hKl)
Definition: kbdlayout.c:370
static VOID SnapWindow(HWND hWnd)
Definition: keyboard.c:723
#define INIT_FUNCTION
Definition: ntoskrnl.h:11
#define SCANCODE_CTRL
Definition: kbd.h:130