dlls/user/input.c

   1 /*
   2  * USER Input processing
   3  *
   4  * Copyright 1993 Bob Amstadt
   5  * Copyright 1996 Albrecht Kleine
   6  * Copyright 1997 David Faure
   7  * Copyright 1998 Morten Welinder
   8  * Copyright 1998 Ulrich Weigand
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include "config.h"
  26 #include "wine/port.h"
  27
  28 #include <stdlib.h>
  29 #include <string.h>
  30 #include <stdarg.h>
  31 #include <stdio.h>
  32 #include <ctype.h>
  33 #include <assert.h>
  34
  35 #define NONAMELESSUNION
  36 #define NONAMELESSSTRUCT
  37 #include "windef.h"
  38 #include "winbase.h"
  39 #include "wingdi.h"
  40 #include "winuser.h"
  41 #include "winnls.h"
  42 #include "wine/server.h"
  43 #include "user_private.h"
  44 #include "winternl.h"
  45 #include "wine/debug.h"
  46 #include "winerror.h"
  47
  48 WINE_DEFAULT_DEBUG_CHANNEL(key);
  49 WINE_DECLARE_DEBUG_CHANNEL(keyboard);
  50
  51
  52 /***********************************************************************
  53  *           get_key_state
  54  */
  55 static WORD get_key_state(void)
  56 {
  57     WORD ret = 0;
  58
  59     if (GetSystemMetrics( SM_SWAPBUTTON ))
  60     {
  61         if (GetAsyncKeyState(VK_RBUTTON) & 0x80) ret |= MK_LBUTTON;
  62         if (GetAsyncKeyState(VK_LBUTTON) & 0x80) ret |= MK_RBUTTON;
  63     }
  64     else
  65     {
  66         if (GetAsyncKeyState(VK_LBUTTON) & 0x80) ret |= MK_LBUTTON;
  67         if (GetAsyncKeyState(VK_RBUTTON) & 0x80) ret |= MK_RBUTTON;
  68     }
  69     if (GetAsyncKeyState(VK_MBUTTON) & 0x80)  ret |= MK_MBUTTON;
  70     if (GetAsyncKeyState(VK_SHIFT) & 0x80)    ret |= MK_SHIFT;
  71     if (GetAsyncKeyState(VK_CONTROL) & 0x80)  ret |= MK_CONTROL;
  72     if (GetAsyncKeyState(VK_XBUTTON1) & 0x80) ret |= MK_XBUTTON1;
  73     if (GetAsyncKeyState(VK_XBUTTON2) & 0x80) ret |= MK_XBUTTON2;
  74     return ret;
  75 }
  76
  77
  78 /***********************************************************************
  79  *              SendInput  (USER32.@)
  80  */
  81 UINT WINAPI SendInput( UINT count, LPINPUT inputs, int size )
  82 {
  83     return USER_Driver->pSendInput( count, inputs, size );
  84 }
  85
  86
  87 /***********************************************************************
  88  *              keybd_event (USER32.@)
  89  */
  90 void WINAPI keybd_event( BYTE bVk, BYTE bScan,
  91                          DWORD dwFlags, ULONG_PTR dwExtraInfo )
  92 {
  93     INPUT input;
  94
  95     input.type = INPUT_KEYBOARD;
  96     input.u.ki.wVk = bVk;
  97     input.u.ki.wScan = bScan;
  98     input.u.ki.dwFlags = dwFlags;
  99     input.u.ki.time = GetTickCount();
 100     input.u.ki.dwExtraInfo = dwExtraInfo;
 101     SendInput( 1, &input, sizeof(input) );
 102 }
 103
 104
 105 /***********************************************************************
 106  *              mouse_event (USER32.@)
 107  */
 108 void WINAPI mouse_event( DWORD dwFlags, DWORD dx, DWORD dy,
 109                          DWORD dwData, ULONG_PTR dwExtraInfo )
 110 {
 111     INPUT input;
 112
 113     input.type = INPUT_MOUSE;
 114     input.u.mi.dx = dx;
 115     input.u.mi.dy = dy;
 116     input.u.mi.mouseData = dwData;
 117     input.u.mi.dwFlags = dwFlags;
 118     input.u.mi.time = GetCurrentTime();
 119     input.u.mi.dwExtraInfo = dwExtraInfo;
 120     SendInput( 1, &input, sizeof(input) );
 121 }
 122
 123
 124 /***********************************************************************
 125  *              GetCursorPos (USER32.@)
 126  */
 127 BOOL WINAPI GetCursorPos( POINT *pt )
 128 {
 129     if (!pt) return FALSE;
 130     return USER_Driver->pGetCursorPos( pt );
 131 }
 132
 133
 134 /***********************************************************************
 135  *              GetCursorInfo (USER32.@)
 136  */
 137 BOOL WINAPI GetCursorInfo( PCURSORINFO pci )
 138 {
 139     if (!pci) return 0;
 140     if (get_user_thread_info()->cursor_count >= 0) pci->flags = CURSOR_SHOWING;
 141     else pci->flags = 0;
 142     GetCursorPos(&pci->ptScreenPos);
 143     return 1;
 144 }
 145
 146
 147 /***********************************************************************
 148  *              SetCursorPos (USER32.@)
 149  */
 150 BOOL WINAPI SetCursorPos( INT x, INT y )
 151 {
 152     return USER_Driver->pSetCursorPos( x, y );
 153 }
 154
 155
 156 /**********************************************************************
 157  *              SetCapture (USER32.@)
 158  */
 159 HWND WINAPI SetCapture( HWND hwnd )
 160 {
 161     HWND previous = 0;
 162
 163     SERVER_START_REQ( set_capture_window )
 164     {
 165         req->handle = hwnd;
 166         req->flags  = 0;
 167         if (!wine_server_call_err( req ))
 168         {
 169             previous = reply->previous;
 170             hwnd = reply->full_handle;
 171         }
 172     }
 173     SERVER_END_REQ;
 174
 175     if (previous && previous != hwnd)
 176         SendMessageW( previous, WM_CAPTURECHANGED, 0, (LPARAM)hwnd );
 177     return previous;
 178 }
 179
 180
 181 /**********************************************************************
 182  *              ReleaseCapture (USER32.@)
 183  */
 184 BOOL WINAPI ReleaseCapture(void)
 185 {
 186     BOOL ret;
 187     HWND previous = 0;
 188
 189     SERVER_START_REQ( set_capture_window )
 190     {
 191         req->handle = 0;
 192         req->flags  = 0;
 193         if ((ret = !wine_server_call_err( req ))) previous = reply->previous;
 194     }
 195     SERVER_END_REQ;
 196
 197     if (previous) SendMessageW( previous, WM_CAPTURECHANGED, 0, 0 );
 198
 199     /* Somebody may have missed some mouse movements */
 200     mouse_event( MOUSEEVENTF_MOVE, 0, 0, 0, 0 );
 201
 202     return ret;
 203 }
 204
 205
 206 /**********************************************************************
 207  *              GetCapture (USER32.@)
 208  */
 209 HWND WINAPI GetCapture(void)
 210 {
 211     HWND ret = 0;
 212
 213     SERVER_START_REQ( get_thread_input )
 214     {
 215         req->tid = GetCurrentThreadId();
 216         if (!wine_server_call_err( req )) ret = reply->capture;
 217     }
 218     SERVER_END_REQ;
 219     return ret;
 220 }
 221
 222
 223 /**********************************************************************
 224  *              GetAsyncKeyState (USER32.@)
 225  *
 226  *      Determine if a key is or was pressed.  retval has high-order
 227  * bit set to 1 if currently pressed, low-order bit set to 1 if key has
 228  * been pressed.
 229  */
 230 SHORT WINAPI GetAsyncKeyState(INT nKey)
 231 {
 232     return USER_Driver->pGetAsyncKeyState( nKey );
 233 }
 234
 235
 236 /***********************************************************************
 237  *              GetQueueStatus (USER32.@)
 238  */
 239 DWORD WINAPI GetQueueStatus( UINT flags )
 240 {
 241     DWORD ret = 0;
 242
 243     if (flags & ~(QS_ALLINPUT | QS_ALLPOSTMESSAGE | QS_SMRESULT))
 244     {
 245         SetLastError( ERROR_INVALID_FLAGS );
 246         return 0;
 247     }
 248
 249     /* check for pending X events */
 250     USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, flags, 0 );
 251
 252     SERVER_START_REQ( get_queue_status )
 253     {
 254         req->clear = 1;
 255         wine_server_call( req );
 256         ret = MAKELONG( reply->changed_bits & flags, reply->wake_bits & flags );
 257     }
 258     SERVER_END_REQ;
 259     return ret;
 260 }
 261
 262
 263 /***********************************************************************
 264  *              GetInputState   (USER32.@)
 265  */
 266 BOOL WINAPI GetInputState(void)
 267 {
 268     DWORD ret = 0;
 269
 270     /* check for pending X events */
 271     USER_Driver->pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_INPUT, 0 );
 272
 273     SERVER_START_REQ( get_queue_status )
 274     {
 275         req->clear = 0;
 276         wine_server_call( req );
 277         ret = reply->wake_bits & (QS_KEY | QS_MOUSEBUTTON);
 278     }
 279     SERVER_END_REQ;
 280     return ret;
 281 }
 282
 283
 284 /******************************************************************
 285  *              GetLastInputInfo (USER32.@)
 286  */
 287 BOOL WINAPI GetLastInputInfo(PLASTINPUTINFO plii)
 288 {
 289     BOOL ret;
 290
 291     TRACE("%p\n", plii);
 292
 293     if (plii->cbSize != sizeof (*plii) )
 294     {
 295         SetLastError(ERROR_INVALID_PARAMETER);
 296         return FALSE;
 297     }
 298
 299     SERVER_START_REQ( get_last_input_time )
 300     {
 301         ret = !wine_server_call_err( req );
 302         if (ret)
 303             plii->dwTime = reply->time;
 304     }
 305     SERVER_END_REQ;
 306     return ret;
 307 }
 308
 309
 310 /**********************************************************************
 311  *              AttachThreadInput (USER32.@)
 312  *
 313  * Attaches the input processing mechanism of one thread to that of
 314  * another thread.
 315  */
 316 BOOL WINAPI AttachThreadInput( DWORD from, DWORD to, BOOL attach )
 317 {
 318     BOOL ret;
 319
 320     SERVER_START_REQ( attach_thread_input )
 321     {
 322         req->tid_from = from;
 323         req->tid_to   = to;
 324         req->attach   = attach;
 325         ret = !wine_server_call_err( req );
 326     }
 327     SERVER_END_REQ;
 328     return ret;
 329 }
 330
 331
 332 /**********************************************************************
 333  *              GetKeyState (USER32.@)
 334  *
 335  * An application calls the GetKeyState function in response to a
 336  * keyboard-input message.  This function retrieves the state of the key
 337  * at the time the input message was generated.
 338  */
 339 SHORT WINAPI GetKeyState(INT vkey)
 340 {
 341     SHORT retval = 0;
 342
 343     SERVER_START_REQ( get_key_state )
 344     {
 345         req->tid = GetCurrentThreadId();
 346         req->key = vkey;
 347         if (!wine_server_call( req )) retval = (signed char)reply->state;
 348     }
 349     SERVER_END_REQ;
 350     TRACE("key (0x%x) -> %x\n", vkey, retval);
 351     return retval;
 352 }
 353
 354
 355 /**********************************************************************
 356  *              GetKeyboardState (USER32.@)
 357  */
 358 BOOL WINAPI GetKeyboardState( LPBYTE state )
 359 {
 360     BOOL ret;
 361
 362     TRACE("(%p)\n", state);
 363
 364     memset( state, 0, 256 );
 365     SERVER_START_REQ( get_key_state )
 366     {
 367         req->tid = GetCurrentThreadId();
 368         req->key = -1;
 369         wine_server_set_reply( req, state, 256 );
 370         ret = !wine_server_call_err( req );
 371     }
 372     SERVER_END_REQ;
 373     return ret;
 374 }
 375
 376
 377 /**********************************************************************
 378  *              SetKeyboardState (USER32.@)
 379  */
 380 BOOL WINAPI SetKeyboardState( LPBYTE state )
 381 {
 382     BOOL ret;
 383
 384     TRACE("(%p)\n", state);
 385
 386     SERVER_START_REQ( set_key_state )
 387     {
 388         req->tid = GetCurrentThreadId();
 389         wine_server_add_data( req, state, 256 );
 390         ret = !wine_server_call_err( req );
 391     }
 392     SERVER_END_REQ;
 393     return ret;
 394 }
 395
 396
 397 /**********************************************************************
 398  *              VkKeyScanA (USER32.@)
 399  *
 400  * VkKeyScan translates an ANSI character to a virtual-key and shift code
 401  * for the current keyboard.
 402  * high-order byte yields :
 403  *      0       Unshifted
 404  *      1       Shift
 405  *      2       Ctrl
 406  *      3-5     Shift-key combinations that are not used for characters
 407  *      6       Ctrl-Alt
 408  *      7       Ctrl-Alt-Shift
 409  *      I.e. :  Shift = 1, Ctrl = 2, Alt = 4.
 410  * FIXME : works ok except for dead chars :
 411  * VkKeyScan '^'(0x5e, 94) ... got keycode 00 ... returning 00
 412  * VkKeyScan '`'(0x60, 96) ... got keycode 00 ... returning 00
 413  */
 414 SHORT WINAPI VkKeyScanA(CHAR cChar)
 415 {
 416     WCHAR wChar;
 417
 418     if (IsDBCSLeadByte(cChar)) return -1;
 419
 420     MultiByteToWideChar(CP_ACP, 0, &cChar, 1, &wChar, 1);
 421     return VkKeyScanW(wChar);
 422 }
 423
 424 /******************************************************************************
 425  *              VkKeyScanW (USER32.@)
 426  */
 427 SHORT WINAPI VkKeyScanW(WCHAR cChar)
 428 {
 429     return VkKeyScanExW(cChar, GetKeyboardLayout(0));
 430 }
 431
 432 /**********************************************************************
 433  *              VkKeyScanExA (USER32.@)
 434  */
 435 WORD WINAPI VkKeyScanExA(CHAR cChar, HKL dwhkl)
 436 {
 437     WCHAR wChar;
 438
 439     if (IsDBCSLeadByte(cChar)) return -1;
 440
 441     MultiByteToWideChar(CP_ACP, 0, &cChar, 1, &wChar, 1);
 442     return VkKeyScanExW(wChar, dwhkl);
 443 }
 444
 445 /******************************************************************************
 446  *              VkKeyScanExW (USER32.@)
 447  */
 448 WORD WINAPI VkKeyScanExW(WCHAR cChar, HKL dwhkl)
 449 {
 450     return USER_Driver->pVkKeyScanEx(cChar, dwhkl);
 451 }
 452
 453 /**********************************************************************
 454  *              OemKeyScan (USER32.@)
 455  */
 456 DWORD WINAPI OemKeyScan(WORD wOemChar)
 457 {
 458     TRACE("(%d)\n", wOemChar);
 459     return wOemChar;
 460 }
 461
 462 /******************************************************************************
 463  *              GetKeyboardType (USER32.@)
 464  */
 465 INT WINAPI GetKeyboardType(INT nTypeFlag)
 466 {
 467     TRACE_(keyboard)("(%d)\n", nTypeFlag);
 468     switch(nTypeFlag)
 469     {
 470     case 0:      /* Keyboard type */
 471         return 4;    /* AT-101 */
 472     case 1:      /* Keyboard Subtype */
 473         return 0;    /* There are no defined subtypes */
 474     case 2:      /* Number of F-keys */
 475         return 12;   /* We're doing an 101 for now, so return 12 F-keys */
 476     default:
 477         WARN_(keyboard)("Unknown type\n");
 478         return 0;    /* The book says 0 here, so 0 */
 479     }
 480 }
 481
 482 /******************************************************************************
 483  *              MapVirtualKeyA (USER32.@)
 484  */
 485 UINT WINAPI MapVirtualKeyA(UINT code, UINT maptype)
 486 {
 487     return MapVirtualKeyExA( code, maptype, GetKeyboardLayout(0) );
 488 }
 489
 490 /******************************************************************************
 491  *              MapVirtualKeyW (USER32.@)
 492  */
 493 UINT WINAPI MapVirtualKeyW(UINT code, UINT maptype)
 494 {
 495     return MapVirtualKeyExW(code, maptype, GetKeyboardLayout(0));
 496 }
 497
 498 /******************************************************************************
 499  *              MapVirtualKeyExA (USER32.@)
 500  */
 501 UINT WINAPI MapVirtualKeyExA(UINT code, UINT maptype, HKL hkl)
 502 {
 503     return MapVirtualKeyExW(code, maptype, hkl);
 504 }
 505
 506 /******************************************************************************
 507  *              MapVirtualKeyExW (USER32.@)
 508  */
 509 UINT WINAPI MapVirtualKeyExW(UINT code, UINT maptype, HKL hkl)
 510 {
 511     TRACE_(keyboard)("(%d, %d, %p)\n", code, maptype, hkl);
 512
 513     return USER_Driver->pMapVirtualKeyEx(code, maptype, hkl);
 514 }
 515
 516 /****************************************************************************
 517  *              GetKBCodePage (USER32.@)
 518  */
 519 UINT WINAPI GetKBCodePage(void)
 520 {
 521     return GetOEMCP();
 522 }
 523
 524 /***********************************************************************
 525  *              GetKeyboardLayout (USER32.@)
 526  *
 527  *        - device handle for keyboard layout defaulted to
 528  *          the language id. This is the way Windows default works.
 529  *        - the thread identifier (dwLayout) is also ignored.
 530  */
 531 HKL WINAPI GetKeyboardLayout(DWORD dwLayout)
 532 {
 533     return USER_Driver->pGetKeyboardLayout(dwLayout);
 534 }
 535
 536 /****************************************************************************
 537  *              GetKeyboardLayoutNameA (USER32.@)
 538  */
 539 BOOL WINAPI GetKeyboardLayoutNameA(LPSTR pszKLID)
 540 {
 541     WCHAR buf[KL_NAMELENGTH];
 542
 543     if (GetKeyboardLayoutNameW(buf))
 544         return WideCharToMultiByte( CP_ACP, 0, buf, -1, pszKLID, KL_NAMELENGTH, NULL, NULL ) != 0;
 545     return FALSE;
 546 }
 547
 548 /****************************************************************************
 549  *              GetKeyboardLayoutNameW (USER32.@)
 550  */
 551 BOOL WINAPI GetKeyboardLayoutNameW(LPWSTR pwszKLID)
 552 {
 553     return USER_Driver->pGetKeyboardLayoutName(pwszKLID);
 554 }
 555
 556 /****************************************************************************
 557  *              GetKeyNameTextA (USER32.@)
 558  */
 559 INT WINAPI GetKeyNameTextA(LONG lParam, LPSTR lpBuffer, INT nSize)
 560 {
 561     WCHAR buf[256];
 562     INT ret;
 563
 564     if (!GetKeyNameTextW(lParam, buf, 256))
 565         return 0;
 566     ret = WideCharToMultiByte(CP_ACP, 0, buf, -1, lpBuffer, nSize, NULL, NULL);
 567     if (!ret && nSize)
 568     {
 569         ret = nSize - 1;
 570         lpBuffer[ret] = 0;
 571     }
 572     return ret;
 573 }
 574
 575 /****************************************************************************
 576  *              GetKeyNameTextW (USER32.@)
 577  */
 578 INT WINAPI GetKeyNameTextW(LONG lParam, LPWSTR lpBuffer, INT nSize)
 579 {
 580     return USER_Driver->pGetKeyNameText( lParam, lpBuffer, nSize );
 581 }
 582
 583 /****************************************************************************
 584  *              ToUnicode (USER32.@)
 585  */
 586 INT WINAPI ToUnicode(UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
 587                      LPWSTR lpwStr, int size, UINT flags)
 588 {
 589     return ToUnicodeEx(virtKey, scanCode, lpKeyState, lpwStr, size, flags, GetKeyboardLayout(0));
 590 }
 591
 592 /****************************************************************************
 593  *              ToUnicodeEx (USER32.@)
 594  */
 595 INT WINAPI ToUnicodeEx(UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
 596                        LPWSTR lpwStr, int size, UINT flags, HKL hkl)
 597 {
 598     return USER_Driver->pToUnicodeEx(virtKey, scanCode, lpKeyState, lpwStr, size, flags, hkl);
 599 }
 600
 601 /****************************************************************************
 602  *              ToAscii (USER32.@)
 603  */
 604 INT WINAPI ToAscii( UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
 605                     LPWORD lpChar, UINT flags )
 606 {
 607     return ToAsciiEx(virtKey, scanCode, lpKeyState, lpChar, flags, GetKeyboardLayout(0));
 608 }
 609
 610 /****************************************************************************
 611  *              ToAsciiEx (USER32.@)
 612  */
 613 INT WINAPI ToAsciiEx( UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
 614                       LPWORD lpChar, UINT flags, HKL dwhkl )
 615 {
 616     WCHAR uni_chars[2];
 617     INT ret, n_ret;
 618
 619     ret = ToUnicodeEx(virtKey, scanCode, lpKeyState, uni_chars, 2, flags, dwhkl);
 620     if (ret < 0) n_ret = 1; /* FIXME: make ToUnicode return 2 for dead chars */
 621     else n_ret = ret;
 622     WideCharToMultiByte(CP_ACP, 0, uni_chars, n_ret, (LPSTR)lpChar, 2, NULL, NULL);
 623     return ret;
 624 }
 625
 626 /**********************************************************************
 627  *              ActivateKeyboardLayout (USER32.@)
 628  */
 629 HKL WINAPI ActivateKeyboardLayout(HKL hLayout, UINT flags)
 630 {
 631     TRACE_(keyboard)("(%p, %d)\n", hLayout, flags);
 632
 633     return USER_Driver->pActivateKeyboardLayout(hLayout, flags);
 634 }
 635
 636
 637 /***********************************************************************
 638  *              GetKeyboardLayoutList (USER32.@)
 639  *
 640  * Return number of values available if either input parm is
 641  *  0, per MS documentation.
 642  */
 643 UINT WINAPI GetKeyboardLayoutList(INT nBuff, HKL *layouts)
 644 {
 645     TRACE_(keyboard)("(%d,%p)\n",nBuff,layouts);
 646
 647     return USER_Driver->pGetKeyboardLayoutList(nBuff, layouts);
 648 }
 649
 650
 651 /***********************************************************************
 652  *              RegisterHotKey (USER32.@)
 653  */
 654 BOOL WINAPI RegisterHotKey(HWND hwnd,INT id,UINT modifiers,UINT vk)
 655 {
 656     FIXME_(keyboard)("(%p,%d,0x%08x,%d): stub\n",hwnd,id,modifiers,vk);
 657     return TRUE;
 658 }
 659
 660 /***********************************************************************
 661  *              UnregisterHotKey (USER32.@)
 662  */
 663 BOOL WINAPI UnregisterHotKey(HWND hwnd,INT id)
 664 {
 665     FIXME_(keyboard)("(%p,%d): stub\n",hwnd,id);
 666     return TRUE;
 667 }
 668
 669 /***********************************************************************
 670  *              LoadKeyboardLayoutW (USER32.@)
 671  */
 672 HKL WINAPI LoadKeyboardLayoutW(LPCWSTR pwszKLID, UINT Flags)
 673 {
 674     TRACE_(keyboard)("(%s, %d)\n", debugstr_w(pwszKLID), Flags);
 675
 676     return USER_Driver->pLoadKeyboardLayout(pwszKLID, Flags);
 677 }
 678
 679 /***********************************************************************
 680  *              LoadKeyboardLayoutA (USER32.@)
 681  */
 682 HKL WINAPI LoadKeyboardLayoutA(LPCSTR pwszKLID, UINT Flags)
 683 {
 684     HKL ret;
 685     UNICODE_STRING pwszKLIDW;
 686
 687     if (pwszKLID) RtlCreateUnicodeStringFromAsciiz(&pwszKLIDW, pwszKLID);
 688     else pwszKLIDW.Buffer = NULL;
 689
 690     ret = LoadKeyboardLayoutW(pwszKLIDW.Buffer, Flags);
 691     RtlFreeUnicodeString(&pwszKLIDW);
 692     return ret;
 693 }
 694
 695
 696 /***********************************************************************
 697  *              UnloadKeyboardLayout (USER32.@)
 698  */
 699 BOOL WINAPI UnloadKeyboardLayout(HKL hkl)
 700 {
 701     TRACE_(keyboard)("(%p)\n", hkl);
 702
 703     return USER_Driver->pUnloadKeyboardLayout(hkl);
 704 }
 705
 706 typedef struct __TRACKINGLIST {
 707     TRACKMOUSEEVENT tme;
 708     POINT pos; /* center of hover rectangle */
 709     INT iHoverTime; /* elapsed time the cursor has been inside of the hover rect */
 710 } _TRACKINGLIST;
 711
 712 static _TRACKINGLIST TrackingList[10];
 713 static int iTrackMax = 0;
 714 static UINT_PTR timer;
 715 static const INT iTimerInterval = 50; /* msec for timer interval */
 716
 717 static void CALLBACK TrackMouseEventProc(HWND hwndUnused, UINT uMsg, UINT_PTR idEvent,
 718     DWORD dwTime)
 719 {
 720     int i = 0;
 721     POINT pos;
 722     POINT posClient;
 723     HWND hwnd;
 724     INT nonclient;
 725     INT hoverwidth = 0, hoverheight = 0;
 726     RECT client;
 727
 728     GetCursorPos(&pos);
 729     hwnd = WindowFromPoint(pos);
 730
 731     SystemParametersInfoA(SPI_GETMOUSEHOVERWIDTH, 0, &hoverwidth, 0);
 732     SystemParametersInfoA(SPI_GETMOUSEHOVERHEIGHT, 0, &hoverheight, 0);
 733
 734     /* loop through tracking events we are processing */
 735     while (i < iTrackMax) {
 736         if (TrackingList[i].tme.dwFlags & TME_NONCLIENT) {
 737             nonclient = 1;
 738         }
 739         else {
 740             nonclient = 0;
 741         }
 742
 743         /* see if this tracking event is looking for TME_LEAVE and that the */
 744         /* mouse has left the window */
 745         if (TrackingList[i].tme.dwFlags & TME_LEAVE) {
 746             if (TrackingList[i].tme.hwndTrack != hwnd) {
 747                 if (nonclient) {
 748                     PostMessageA(TrackingList[i].tme.hwndTrack, WM_NCMOUSELEAVE, 0, 0);
 749                 }
 750                 else {
 751                     PostMessageA(TrackingList[i].tme.hwndTrack, WM_MOUSELEAVE, 0, 0);
 752                 }
 753
 754                 /* remove the TME_LEAVE flag */
 755                 TrackingList[i].tme.dwFlags ^= TME_LEAVE;
 756             }
 757             else {
 758                 GetClientRect(hwnd, &client);
 759                 MapWindowPoints(hwnd, NULL, (LPPOINT)&client, 2);
 760                 if(PtInRect(&client, pos)) {
 761                     if (nonclient) {
 762                         PostMessageA(TrackingList[i].tme.hwndTrack, WM_NCMOUSELEAVE, 0, 0);
 763                         /* remove the TME_LEAVE flag */
 764                         TrackingList[i].tme.dwFlags ^= TME_LEAVE;
 765                     }
 766                 }
 767                 else {
 768                     if (!nonclient) {
 769                         PostMessageA(TrackingList[i].tme.hwndTrack, WM_MOUSELEAVE, 0, 0);
 770                         /* remove the TME_LEAVE flag */
 771                         TrackingList[i].tme.dwFlags ^= TME_LEAVE;
 772                     }
 773                 }
 774             }
 775         }
 776
 777         /* see if we are tracking hovering for this hwnd */
 778         if(TrackingList[i].tme.dwFlags & TME_HOVER) {
 779             /* add the timer interval to the hovering time */
 780             TrackingList[i].iHoverTime+=iTimerInterval;
 781
 782             /* has the cursor moved outside the rectangle centered around pos? */
 783             if((abs(pos.x - TrackingList[i].pos.x) > (hoverwidth / 2.0))
 784               || (abs(pos.y - TrackingList[i].pos.y) > (hoverheight / 2.0)))
 785             {
 786                 /* record this new position as the current position and reset */
 787                 /* the iHoverTime variable to 0 */
 788                 TrackingList[i].pos = pos;
 789                 TrackingList[i].iHoverTime = 0;
 790             }
 791
 792             /* has the mouse hovered long enough? */
 793             if(TrackingList[i].iHoverTime <= TrackingList[i].tme.dwHoverTime)
 794             {
 795                 posClient.x = pos.x;
 796                 posClient.y = pos.y;
 797                 ScreenToClient(hwnd, &posClient);
 798                 if (nonclient) {
 799                     PostMessageW(TrackingList[i].tme.hwndTrack, WM_NCMOUSEHOVER,
 800                                 get_key_state(), MAKELPARAM( posClient.x, posClient.y ));
 801                 }
 802                 else {
 803                     PostMessageW(TrackingList[i].tme.hwndTrack, WM_MOUSEHOVER,
 804                                 get_key_state(), MAKELPARAM( posClient.x, posClient.y ));
 805                 }
 806
 807                 /* stop tracking mouse hover */
 808                 TrackingList[i].tme.dwFlags ^= TME_HOVER;
 809             }
 810         }
 811
 812         /* see if we are still tracking TME_HOVER or TME_LEAVE for this entry */
 813         if((TrackingList[i].tme.dwFlags & TME_HOVER) ||
 814            (TrackingList[i].tme.dwFlags & TME_LEAVE)) {
 815             i++;
 816         } else { /* remove this entry from the tracking list */
 817             TrackingList[i] = TrackingList[--iTrackMax];
 818         }
 819     }
 820
 821     /* stop the timer if the tracking list is empty */
 822     if(iTrackMax == 0) {
 823         KillTimer(0, timer);
 824         timer = 0;
 825     }
 826 }
 827
 828
 829 /***********************************************************************
 830  * TrackMouseEvent [USER32]
 831  *
 832  * Requests notification of mouse events
 833  *
 834  * During mouse tracking WM_MOUSEHOVER or WM_MOUSELEAVE events are posted
 835  * to the hwnd specified in the ptme structure.  After the event message
 836  * is posted to the hwnd, the entry in the queue is removed.
 837  *
 838  * If the current hwnd isn't ptme->hwndTrack the TME_HOVER flag is completely
 839  * ignored. The TME_LEAVE flag results in a WM_MOUSELEAVE message being posted
 840  * immediately and the TME_LEAVE flag being ignored.
 841  *
 842  * PARAMS
 843  *     ptme [I,O] pointer to TRACKMOUSEEVENT information structure.
 844  *
 845  * RETURNS
 846  *     Success: non-zero
 847  *     Failure: zero
 848  *
 849  */
 850
 851 BOOL WINAPI
 852 TrackMouseEvent (TRACKMOUSEEVENT *ptme)
 853 {
 854     DWORD flags = 0;
 855     int i = 0;
 856     BOOL cancel = 0, hover = 0, leave = 0, query = 0, nonclient = 0, inclient = 0;
 857     HWND hwnd;
 858     POINT pos;
 859     RECT client;
 860
 861
 862     pos.x = 0;
 863     pos.y = 0;
 864     SetRectEmpty(&client);
 865
 866     TRACE("%lx, %lx, %p, %lx\n", ptme->cbSize, ptme->dwFlags, ptme->hwndTrack, ptme->dwHoverTime);
 867
 868     if (ptme->cbSize != sizeof(TRACKMOUSEEVENT)) {
 869         WARN("wrong TRACKMOUSEEVENT size from app\n");
 870         SetLastError(ERROR_INVALID_PARAMETER); /* FIXME not sure if this is correct */
 871         return FALSE;
 872     }
 873
 874     flags = ptme->dwFlags;
 875
 876     /* if HOVER_DEFAULT was specified replace this with the systems current value */
 877     if(ptme->dwHoverTime == HOVER_DEFAULT)
 878         SystemParametersInfoA(SPI_GETMOUSEHOVERTIME, 0, &(ptme->dwHoverTime), 0);
 879
 880     GetCursorPos(&pos);
 881     hwnd = WindowFromPoint(pos);
 882
 883     if ( flags & TME_CANCEL ) {
 884         flags &= ~ TME_CANCEL;
 885         cancel = 1;
 886     }
 887
 888     if ( flags & TME_HOVER  ) {
 889         flags &= ~ TME_HOVER;
 890         hover = 1;
 891     }
 892
 893     if ( flags & TME_LEAVE ) {
 894         flags &= ~ TME_LEAVE;
 895         leave = 1;
 896     }
 897
 898     if ( flags & TME_NONCLIENT ) {
 899         flags &= ~ TME_NONCLIENT;
 900         nonclient = 1;
 901     }
 902
 903     /* fill the TRACKMOUSEEVENT struct with the current tracking for the given hwnd */
 904     if ( flags & TME_QUERY ) {
 905         flags &= ~ TME_QUERY;
 906         query = 1;
 907         i = 0;
 908
 909         /* Find the tracking list entry with the matching hwnd */
 910         while((i < iTrackMax) && (TrackingList[i].tme.hwndTrack != ptme->hwndTrack)) {
 911             i++;
 912         }
 913
 914         /* hwnd found, fill in the ptme struct */
 915         if(i < iTrackMax)
 916             *ptme = TrackingList[i].tme;
 917         else
 918             ptme->dwFlags = 0;
 919
 920         return TRUE; /* return here, TME_QUERY is retrieving information */
 921     }
 922
 923     if ( flags )
 924         FIXME("Unknown flag(s) %08lx\n", flags );
 925
 926     if(cancel) {
 927         /* find a matching hwnd if one exists */
 928         i = 0;
 929
 930         while((i < iTrackMax) && (TrackingList[i].tme.hwndTrack != ptme->hwndTrack)) {
 931           i++;
 932         }
 933
 934         if(i < iTrackMax) {
 935             TrackingList[i].tme.dwFlags &= ~(ptme->dwFlags & ~TME_CANCEL);
 936
 937             /* if we aren't tracking on hover or leave remove this entry */
 938             if(!((TrackingList[i].tme.dwFlags & TME_HOVER) ||
 939                  (TrackingList[i].tme.dwFlags & TME_LEAVE)))
 940             {
 941                 TrackingList[i] = TrackingList[--iTrackMax];
 942
 943                 if(iTrackMax == 0) {
 944                     KillTimer(0, timer);
 945                     timer = 0;
 946                 }
 947             }
 948         }
 949     } else {
 950         /* see if hwndTrack isn't the current window */
 951         if(ptme->hwndTrack != hwnd) {
 952             if(leave) {
 953                 if(nonclient) {
 954                     PostMessageA(ptme->hwndTrack, WM_NCMOUSELEAVE, 0, 0);
 955                 }
 956                 else {
 957                     PostMessageA(ptme->hwndTrack, WM_MOUSELEAVE, 0, 0);
 958                 }
 959             }
 960         } else {
 961             GetClientRect(ptme->hwndTrack, &client);
 962             MapWindowPoints(ptme->hwndTrack, NULL, (LPPOINT)&client, 2);
 963             if(PtInRect(&client, pos)) {
 964                 inclient = 1;
 965             }
 966             if(nonclient && inclient) {
 967                 PostMessageA(ptme->hwndTrack, WM_NCMOUSELEAVE, 0, 0);
 968                 return TRUE;
 969             }
 970             else if(!nonclient && !inclient) {
 971                 PostMessageA(ptme->hwndTrack, WM_MOUSELEAVE, 0, 0);
 972                 return TRUE;
 973             }
 974
 975             /* See if this hwnd is already being tracked and update the tracking flags */
 976             for(i = 0; i < iTrackMax; i++) {
 977                 if(TrackingList[i].tme.hwndTrack == ptme->hwndTrack) {
 978                     TrackingList[i].tme.dwFlags = 0;
 979
 980                     if(hover) {
 981                         TrackingList[i].tme.dwFlags |= TME_HOVER;
 982                         TrackingList[i].tme.dwHoverTime = ptme->dwHoverTime;
 983                     }
 984
 985                     if(leave)
 986                         TrackingList[i].tme.dwFlags |= TME_LEAVE;
 987
 988                     if(nonclient)
 989                         TrackingList[i].tme.dwFlags |= TME_NONCLIENT;
 990
 991                     /* reset iHoverTime as per winapi specs */
 992                     TrackingList[i].iHoverTime = 0;
 993
 994                     return TRUE;
 995                 }
 996             }
 997
 998             /* if the tracking list is full return FALSE */
 999             if (iTrackMax == sizeof (TrackingList) / sizeof(*TrackingList)) {
1000                 return FALSE;
1001             }
1002
1003             /* Adding new mouse event to the tracking list */
1004             TrackingList[iTrackMax].tme = *ptme;
1005
1006             /* Initialize HoverInfo variables even if not hover tracking */
1007             TrackingList[iTrackMax].iHoverTime = 0;
1008             TrackingList[iTrackMax].pos = pos;
1009
1010             iTrackMax++;
1011
1012             if (!timer) {
1013                 timer = SetTimer(0, 0, iTimerInterval, TrackMouseEventProc);
1014             }
1015         }
1016     }
1017
1018     return TRUE;
1019 }