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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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     if (USER_Driver.pSendInput) return USER_Driver.pSendInput( count, inputs, size );
  84     return 0;
  85 }
  86
  87
  88 /***********************************************************************
  89  *              keybd_event (USER32.@)
  90  */
  91 void WINAPI keybd_event( BYTE bVk, BYTE bScan,
  92                          DWORD dwFlags, ULONG_PTR dwExtraInfo )
  93 {
  94     INPUT input;
  95
  96     input.type = INPUT_KEYBOARD;
  97     input.u.ki.wVk = bVk;
  98     input.u.ki.wScan = bScan;
  99     input.u.ki.dwFlags = dwFlags;
 100     input.u.ki.time = GetTickCount();
 101     input.u.ki.dwExtraInfo = dwExtraInfo;
 102     SendInput( 1, &input, sizeof(input) );
 103 }
 104
 105
 106 /***********************************************************************
 107  *              mouse_event (USER32.@)
 108  */
 109 void WINAPI mouse_event( DWORD dwFlags, DWORD dx, DWORD dy,
 110                          DWORD dwData, ULONG_PTR dwExtraInfo )
 111 {
 112     INPUT input;
 113
 114     input.type = INPUT_MOUSE;
 115     input.u.mi.dx = dx;
 116     input.u.mi.dy = dy;
 117     input.u.mi.mouseData = dwData;
 118     input.u.mi.dwFlags = dwFlags;
 119     input.u.mi.time = GetCurrentTime();
 120     input.u.mi.dwExtraInfo = dwExtraInfo;
 121     SendInput( 1, &input, sizeof(input) );
 122 }
 123
 124
 125 /***********************************************************************
 126  *              GetCursorPos (USER32.@)
 127  */
 128 BOOL WINAPI GetCursorPos( POINT *pt )
 129 {
 130     if (pt && USER_Driver.pGetCursorPos) return USER_Driver.pGetCursorPos( pt );
 131     return FALSE;
 132 }
 133
 134
 135 /***********************************************************************
 136  *              GetCursorInfo (USER32.@)
 137  */
 138 BOOL WINAPI GetCursorInfo( PCURSORINFO pci )
 139 {
 140     if (!pci) return 0;
 141     if (get_user_thread_info()->cursor_count >= 0) pci->flags = CURSOR_SHOWING;
 142     else pci->flags = 0;
 143     GetCursorPos(&pci->ptScreenPos);
 144     return 1;
 145 }
 146
 147
 148 /***********************************************************************
 149  *              SetCursorPos (USER32.@)
 150  */
 151 BOOL WINAPI SetCursorPos( INT x, INT y )
 152 {
 153     if (USER_Driver.pSetCursorPos) return USER_Driver.pSetCursorPos( x, y );
 154     return FALSE;
 155 }
 156
 157
 158 /**********************************************************************
 159  *              SetCapture (USER32.@)
 160  */
 161 HWND WINAPI SetCapture( HWND hwnd )
 162 {
 163     HWND previous = 0;
 164
 165     SERVER_START_REQ( set_capture_window )
 166     {
 167         req->handle = hwnd;
 168         req->flags  = 0;
 169         if (!wine_server_call_err( req ))
 170         {
 171             previous = reply->previous;
 172             hwnd = reply->full_handle;
 173         }
 174     }
 175     SERVER_END_REQ;
 176
 177     if (previous && previous != hwnd)
 178         SendMessageW( previous, WM_CAPTURECHANGED, 0, (LPARAM)hwnd );
 179     return previous;
 180 }
 181
 182
 183 /**********************************************************************
 184  *              ReleaseCapture (USER32.@)
 185  */
 186 BOOL WINAPI ReleaseCapture(void)
 187 {
 188     return (SetCapture(0) != 0);
 189 }
 190
 191
 192 /**********************************************************************
 193  *              GetCapture (USER32.@)
 194  */
 195 HWND WINAPI GetCapture(void)
 196 {
 197     HWND ret = 0;
 198
 199     SERVER_START_REQ( get_thread_input )
 200     {
 201         req->tid = GetCurrentThreadId();
 202         if (!wine_server_call_err( req )) ret = reply->capture;
 203     }
 204     SERVER_END_REQ;
 205     return ret;
 206 }
 207
 208
 209 /**********************************************************************
 210  *              GetAsyncKeyState (USER32.@)
 211  *
 212  *      Determine if a key is or was pressed.  retval has high-order
 213  * bit set to 1 if currently pressed, low-order bit set to 1 if key has
 214  * been pressed.
 215  */
 216 SHORT WINAPI GetAsyncKeyState(INT nKey)
 217 {
 218     if (USER_Driver.pGetAsyncKeyState) return USER_Driver.pGetAsyncKeyState( nKey );
 219     return 0;
 220 }
 221
 222
 223 /***********************************************************************
 224  *              GetQueueStatus (USER32.@)
 225  */
 226 DWORD WINAPI GetQueueStatus( UINT flags )
 227 {
 228     DWORD ret = 0;
 229
 230     /* check for pending X events */
 231     if (USER_Driver.pMsgWaitForMultipleObjectsEx)
 232         USER_Driver.pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_ALLINPUT, 0 );
 233
 234     SERVER_START_REQ( get_queue_status )
 235     {
 236         req->clear = 1;
 237         wine_server_call( req );
 238         ret = MAKELONG( reply->changed_bits & flags, reply->wake_bits & flags );
 239     }
 240     SERVER_END_REQ;
 241     return ret;
 242 }
 243
 244
 245 /***********************************************************************
 246  *              GetInputState   (USER32.@)
 247  */
 248 BOOL WINAPI GetInputState(void)
 249 {
 250     DWORD ret = 0;
 251
 252     /* check for pending X events */
 253     if (USER_Driver.pMsgWaitForMultipleObjectsEx)
 254         USER_Driver.pMsgWaitForMultipleObjectsEx( 0, NULL, 0, QS_INPUT, 0 );
 255
 256     SERVER_START_REQ( get_queue_status )
 257     {
 258         req->clear = 0;
 259         wine_server_call( req );
 260         ret = reply->wake_bits & (QS_KEY | QS_MOUSEBUTTON);
 261     }
 262     SERVER_END_REQ;
 263     return ret;
 264 }
 265
 266
 267 /******************************************************************
 268  *              GetLastInputInfo (USER32.@)
 269  */
 270 BOOL WINAPI GetLastInputInfo(PLASTINPUTINFO plii)
 271 {
 272     BOOL ret;
 273
 274     TRACE("%p\n", plii);
 275
 276     if (plii->cbSize != sizeof (*plii) )
 277     {
 278         SetLastError(ERROR_INVALID_PARAMETER);
 279         return FALSE;
 280     }
 281
 282     SERVER_START_REQ( get_last_input_time )
 283     {
 284         ret = !wine_server_call_err( req );
 285         if (ret)
 286             plii->dwTime = reply->time;
 287     }
 288     SERVER_END_REQ;
 289     return ret;
 290 }
 291
 292
 293 /**********************************************************************
 294  *              AttachThreadInput (USER32.@)
 295  *
 296  * Attaches the input processing mechanism of one thread to that of
 297  * another thread.
 298  */
 299 BOOL WINAPI AttachThreadInput( DWORD from, DWORD to, BOOL attach )
 300 {
 301     BOOL ret;
 302
 303     SERVER_START_REQ( attach_thread_input )
 304     {
 305         req->tid_from = from;
 306         req->tid_to   = to;
 307         req->attach   = attach;
 308         ret = !wine_server_call_err( req );
 309     }
 310     SERVER_END_REQ;
 311     return ret;
 312 }
 313
 314
 315 /**********************************************************************
 316  *              GetKeyState (USER32.@)
 317  *
 318  * An application calls the GetKeyState function in response to a
 319  * keyboard-input message.  This function retrieves the state of the key
 320  * at the time the input message was generated.
 321  */
 322 SHORT WINAPI GetKeyState(INT vkey)
 323 {
 324     SHORT retval = 0;
 325
 326     SERVER_START_REQ( get_key_state )
 327     {
 328         req->tid = GetCurrentThreadId();
 329         req->key = vkey;
 330         if (!wine_server_call( req )) retval = (signed char)reply->state;
 331     }
 332     SERVER_END_REQ;
 333     TRACE("key (0x%x) -> %x\n", vkey, retval);
 334     return retval;
 335 }
 336
 337
 338 /**********************************************************************
 339  *              GetKeyboardState (USER32.@)
 340  */
 341 BOOL WINAPI GetKeyboardState( LPBYTE state )
 342 {
 343     BOOL ret;
 344
 345     TRACE("(%p)\n", state);
 346
 347     memset( state, 0, 256 );
 348     SERVER_START_REQ( get_key_state )
 349     {
 350         req->tid = GetCurrentThreadId();
 351         req->key = -1;
 352         wine_server_set_reply( req, state, 256 );
 353         ret = !wine_server_call_err( req );
 354     }
 355     SERVER_END_REQ;
 356     return ret;
 357 }
 358
 359
 360 /**********************************************************************
 361  *              SetKeyboardState (USER32.@)
 362  */
 363 BOOL WINAPI SetKeyboardState( LPBYTE state )
 364 {
 365     BOOL ret;
 366
 367     TRACE("(%p)\n", state);
 368
 369     SERVER_START_REQ( set_key_state )
 370     {
 371         req->tid = GetCurrentThreadId();
 372         wine_server_add_data( req, state, 256 );
 373         ret = !wine_server_call_err( req );
 374     }
 375     SERVER_END_REQ;
 376     return ret;
 377 }
 378
 379
 380 /**********************************************************************
 381  *              VkKeyScanA (USER32.@)
 382  *
 383  * VkKeyScan translates an ANSI character to a virtual-key and shift code
 384  * for the current keyboard.
 385  * high-order byte yields :
 386  *      0       Unshifted
 387  *      1       Shift
 388  *      2       Ctrl
 389  *      3-5     Shift-key combinations that are not used for characters
 390  *      6       Ctrl-Alt
 391  *      7       Ctrl-Alt-Shift
 392  *      I.e. :  Shift = 1, Ctrl = 2, Alt = 4.
 393  * FIXME : works ok except for dead chars :
 394  * VkKeyScan '^'(0x5e, 94) ... got keycode 00 ... returning 00
 395  * VkKeyScan '`'(0x60, 96) ... got keycode 00 ... returning 00
 396  */
 397 SHORT WINAPI VkKeyScanA(CHAR cChar)
 398 {
 399     WCHAR wChar;
 400
 401     if (IsDBCSLeadByte(cChar)) return -1;
 402
 403     MultiByteToWideChar(CP_ACP, 0, &cChar, 1, &wChar, 1);
 404     return VkKeyScanW(wChar);
 405 }
 406
 407 /******************************************************************************
 408  *              VkKeyScanW (USER32.@)
 409  */
 410 SHORT WINAPI VkKeyScanW(WCHAR cChar)
 411 {
 412     return VkKeyScanExW(cChar, GetKeyboardLayout(0));
 413 }
 414
 415 /**********************************************************************
 416  *              VkKeyScanExA (USER32.@)
 417  */
 418 WORD WINAPI VkKeyScanExA(CHAR cChar, HKL dwhkl)
 419 {
 420     WCHAR wChar;
 421
 422     if (IsDBCSLeadByte(cChar)) return -1;
 423
 424     MultiByteToWideChar(CP_ACP, 0, &cChar, 1, &wChar, 1);
 425     return VkKeyScanExW(wChar, dwhkl);
 426 }
 427
 428 /******************************************************************************
 429  *              VkKeyScanExW (USER32.@)
 430  */
 431 WORD WINAPI VkKeyScanExW(WCHAR cChar, HKL dwhkl)
 432 {
 433     if (USER_Driver.pVkKeyScanEx)
 434         return USER_Driver.pVkKeyScanEx(cChar, dwhkl);
 435     return -1;
 436 }
 437
 438 /**********************************************************************
 439  *              OemKeyScan (USER32.@)
 440  */
 441 DWORD WINAPI OemKeyScan(WORD wOemChar)
 442 {
 443     TRACE("(%d)\n", wOemChar);
 444     return wOemChar;
 445 }
 446
 447 /******************************************************************************
 448  *              GetKeyboardType (USER32.@)
 449  */
 450 INT WINAPI GetKeyboardType(INT nTypeFlag)
 451 {
 452     TRACE_(keyboard)("(%d)\n", nTypeFlag);
 453     switch(nTypeFlag)
 454     {
 455     case 0:      /* Keyboard type */
 456         return 4;    /* AT-101 */
 457     case 1:      /* Keyboard Subtype */
 458         return 0;    /* There are no defined subtypes */
 459     case 2:      /* Number of F-keys */
 460         return 12;   /* We're doing an 101 for now, so return 12 F-keys */
 461     default:
 462         WARN_(keyboard)("Unknown type\n");
 463         return 0;    /* The book says 0 here, so 0 */
 464     }
 465 }
 466
 467 /******************************************************************************
 468  *              MapVirtualKeyA (USER32.@)
 469  */
 470 UINT WINAPI MapVirtualKeyA(UINT code, UINT maptype)
 471 {
 472     return MapVirtualKeyExA( code, maptype, GetKeyboardLayout(0) );
 473 }
 474
 475 /******************************************************************************
 476  *              MapVirtualKeyW (USER32.@)
 477  */
 478 UINT WINAPI MapVirtualKeyW(UINT code, UINT maptype)
 479 {
 480     return MapVirtualKeyExW(code, maptype, GetKeyboardLayout(0));
 481 }
 482
 483 /******************************************************************************
 484  *              MapVirtualKeyExA (USER32.@)
 485  */
 486 UINT WINAPI MapVirtualKeyExA(UINT code, UINT maptype, HKL hkl)
 487 {
 488     return MapVirtualKeyExW(code, maptype, hkl);
 489 }
 490
 491 /******************************************************************************
 492  *              MapVirtualKeyExW (USER32.@)
 493  */
 494 UINT WINAPI MapVirtualKeyExW(UINT code, UINT maptype, HKL hkl)
 495 {
 496     TRACE_(keyboard)("(%d, %d, %p)\n", code, maptype, hkl);
 497
 498     if (USER_Driver.pMapVirtualKeyEx)
 499         return USER_Driver.pMapVirtualKeyEx(code, maptype, hkl);
 500     return 0;
 501 }
 502
 503 /****************************************************************************
 504  *              GetKBCodePage (USER32.@)
 505  */
 506 UINT WINAPI GetKBCodePage(void)
 507 {
 508     return GetOEMCP();
 509 }
 510
 511 /***********************************************************************
 512  *              GetKeyboardLayout (USER32.@)
 513  *
 514  *        - device handle for keyboard layout defaulted to
 515  *          the language id. This is the way Windows default works.
 516  *        - the thread identifier (dwLayout) is also ignored.
 517  */
 518 HKL WINAPI GetKeyboardLayout(DWORD dwLayout)
 519 {
 520     if (USER_Driver.pGetKeyboardLayout)
 521         return USER_Driver.pGetKeyboardLayout(dwLayout);
 522     return 0;
 523 }
 524
 525 /****************************************************************************
 526  *              GetKeyboardLayoutNameA (USER32.@)
 527  */
 528 BOOL WINAPI GetKeyboardLayoutNameA(LPSTR pszKLID)
 529 {
 530     WCHAR buf[KL_NAMELENGTH];
 531
 532     if (GetKeyboardLayoutNameW(buf))
 533         return WideCharToMultiByte( CP_ACP, 0, buf, -1, pszKLID, KL_NAMELENGTH, NULL, NULL ) != 0;
 534     return FALSE;
 535 }
 536
 537 /****************************************************************************
 538  *              GetKeyboardLayoutNameW (USER32.@)
 539  */
 540 BOOL WINAPI GetKeyboardLayoutNameW(LPWSTR pwszKLID)
 541 {
 542     if (USER_Driver.pGetKeyboardLayoutName)
 543         return USER_Driver.pGetKeyboardLayoutName(pwszKLID);
 544     return FALSE;
 545 }
 546
 547 /****************************************************************************
 548  *              GetKeyNameTextA (USER32.@)
 549  */
 550 INT WINAPI GetKeyNameTextA(LONG lParam, LPSTR lpBuffer, INT nSize)
 551 {
 552     WCHAR buf[256];
 553     INT ret;
 554
 555     if (!GetKeyNameTextW(lParam, buf, 256))
 556         return 0;
 557     ret = WideCharToMultiByte(CP_ACP, 0, buf, -1, lpBuffer, nSize, NULL, NULL);
 558     if (!ret && nSize)
 559     {
 560         ret = nSize - 1;
 561         lpBuffer[ret] = 0;
 562     }
 563     return ret;
 564 }
 565
 566 /****************************************************************************
 567  *              GetKeyNameTextW (USER32.@)
 568  */
 569 INT WINAPI GetKeyNameTextW(LONG lParam, LPWSTR lpBuffer, INT nSize)
 570 {
 571     if (USER_Driver.pGetKeyNameText)
 572         return USER_Driver.pGetKeyNameText( lParam, lpBuffer, nSize );
 573     return 0;
 574 }
 575
 576 /****************************************************************************
 577  *              ToUnicode (USER32.@)
 578  */
 579 INT WINAPI ToUnicode(UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
 580                      LPWSTR lpwStr, int size, UINT flags)
 581 {
 582     return ToUnicodeEx(virtKey, scanCode, lpKeyState, lpwStr, size, flags, GetKeyboardLayout(0));
 583 }
 584
 585 /****************************************************************************
 586  *              ToUnicodeEx (USER32.@)
 587  */
 588 INT WINAPI ToUnicodeEx(UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
 589                        LPWSTR lpwStr, int size, UINT flags, HKL hkl)
 590 {
 591     if (USER_Driver.pToUnicodeEx)
 592         return USER_Driver.pToUnicodeEx(virtKey, scanCode, lpKeyState, lpwStr, size, flags, hkl);
 593     return 0;
 594 }
 595
 596 /****************************************************************************
 597  *              ToAscii (USER32.@)
 598  */
 599 INT WINAPI ToAscii( UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
 600                     LPWORD lpChar, UINT flags )
 601 {
 602     return ToAsciiEx(virtKey, scanCode, lpKeyState, lpChar, flags, GetKeyboardLayout(0));
 603 }
 604
 605 /****************************************************************************
 606  *              ToAsciiEx (USER32.@)
 607  */
 608 INT WINAPI ToAsciiEx( UINT virtKey, UINT scanCode, LPBYTE lpKeyState,
 609                       LPWORD lpChar, UINT flags, HKL dwhkl )
 610 {
 611     WCHAR uni_chars[2];
 612     INT ret, n_ret;
 613
 614     ret = ToUnicodeEx(virtKey, scanCode, lpKeyState, uni_chars, 2, flags, dwhkl);
 615     if (ret < 0) n_ret = 1; /* FIXME: make ToUnicode return 2 for dead chars */
 616     else n_ret = ret;
 617     WideCharToMultiByte(CP_ACP, 0, uni_chars, n_ret, (LPSTR)lpChar, 2, NULL, NULL);
 618     return ret;
 619 }
 620
 621 /**********************************************************************
 622  *              ActivateKeyboardLayout (USER32.@)
 623  */
 624 HKL WINAPI ActivateKeyboardLayout(HKL hLayout, UINT flags)
 625 {
 626     TRACE_(keyboard)("(%p, %d)\n", hLayout, flags);
 627
 628     if (USER_Driver.pActivateKeyboardLayout)
 629         return USER_Driver.pActivateKeyboardLayout(hLayout, flags);
 630     return 0;
 631 }
 632
 633
 634 /***********************************************************************
 635  *              GetKeyboardLayoutList (USER32.@)
 636  *
 637  * Return number of values available if either input parm is
 638  *  0, per MS documentation.
 639  */
 640 UINT WINAPI GetKeyboardLayoutList(INT nBuff, HKL *layouts)
 641 {
 642     TRACE_(keyboard)("(%d,%p)\n",nBuff,layouts);
 643
 644     if (USER_Driver.pGetKeyboardLayoutList)
 645         return USER_Driver.pGetKeyboardLayoutList(nBuff, layouts);
 646     return 0;
 647 }
 648
 649
 650 /***********************************************************************
 651  *              RegisterHotKey (USER32.@)
 652  */
 653 BOOL WINAPI RegisterHotKey(HWND hwnd,INT id,UINT modifiers,UINT vk)
 654 {
 655     FIXME_(keyboard)("(%p,%d,0x%08x,%d): stub\n",hwnd,id,modifiers,vk);
 656     return TRUE;
 657 }
 658
 659 /***********************************************************************
 660  *              UnregisterHotKey (USER32.@)
 661  */
 662 BOOL WINAPI UnregisterHotKey(HWND hwnd,INT id)
 663 {
 664     FIXME_(keyboard)("(%p,%d): stub\n",hwnd,id);
 665     return TRUE;
 666 }
 667
 668 /***********************************************************************
 669  *              LoadKeyboardLayoutW (USER32.@)
 670  */
 671 HKL WINAPI LoadKeyboardLayoutW(LPCWSTR pwszKLID, UINT Flags)
 672 {
 673     TRACE_(keyboard)("(%s, %d)\n", debugstr_w(pwszKLID), Flags);
 674
 675     if (USER_Driver.pLoadKeyboardLayout)
 676         return USER_Driver.pLoadKeyboardLayout(pwszKLID, Flags);
 677     return 0;
 678 }
 679
 680 /***********************************************************************
 681  *              LoadKeyboardLayoutA (USER32.@)
 682  */
 683 HKL WINAPI LoadKeyboardLayoutA(LPCSTR pwszKLID, UINT Flags)
 684 {
 685     HKL ret;
 686     UNICODE_STRING pwszKLIDW;
 687
 688     if (pwszKLID) RtlCreateUnicodeStringFromAsciiz(&pwszKLIDW, pwszKLID);
 689     else pwszKLIDW.Buffer = NULL;
 690
 691     ret = LoadKeyboardLayoutW(pwszKLIDW.Buffer, Flags);
 692     RtlFreeUnicodeString(&pwszKLIDW);
 693     return ret;
 694 }
 695
 696
 697 /***********************************************************************
 698  *              UnloadKeyboardLayout (USER32.@)
 699  */
 700 BOOL WINAPI UnloadKeyboardLayout(HKL hkl)
 701 {
 702     TRACE_(keyboard)("(%p)\n", hkl);
 703
 704     if (USER_Driver.pUnloadKeyboardLayout)
 705         return USER_Driver.pUnloadKeyboardLayout(hkl);
 706     return 0;
 707 }
 708
 709 typedef struct __TRACKINGLIST {
 710     TRACKMOUSEEVENT tme;
 711     POINT pos; /* center of hover rectangle */
 712     INT iHoverTime; /* elapsed time the cursor has been inside of the hover rect */
 713 } _TRACKINGLIST;
 714
 715 static _TRACKINGLIST TrackingList[10];
 716 static int iTrackMax = 0;
 717 static UINT_PTR timer;
 718 static const INT iTimerInterval = 50; /* msec for timer interval */
 719
 720 static void CALLBACK TrackMouseEventProc(HWND hwndUnused, UINT uMsg, UINT_PTR idEvent,
 721     DWORD dwTime)
 722 {
 723     int i = 0;
 724     POINT pos;
 725     POINT posClient;
 726     HWND hwnd;
 727     INT nonclient;
 728     INT hoverwidth = 0, hoverheight = 0;
 729     RECT client;
 730
 731     GetCursorPos(&pos);
 732     hwnd = WindowFromPoint(pos);
 733
 734     SystemParametersInfoA(SPI_GETMOUSEHOVERWIDTH, 0, &hoverwidth, 0);
 735     SystemParametersInfoA(SPI_GETMOUSEHOVERHEIGHT, 0, &hoverheight, 0);
 736
 737     /* loop through tracking events we are processing */
 738     while (i < iTrackMax) {
 739         if (TrackingList[i].tme.dwFlags & TME_NONCLIENT) {
 740             nonclient = 1;
 741         }
 742         else {
 743             nonclient = 0;
 744         }
 745
 746         /* see if this tracking event is looking for TME_LEAVE and that the */
 747         /* mouse has left the window */
 748         if (TrackingList[i].tme.dwFlags & TME_LEAVE) {
 749             if (TrackingList[i].tme.hwndTrack != hwnd) {
 750                 if (nonclient) {
 751                     PostMessageA(TrackingList[i].tme.hwndTrack, WM_NCMOUSELEAVE, 0, 0);
 752                 }
 753                 else {
 754                     PostMessageA(TrackingList[i].tme.hwndTrack, WM_MOUSELEAVE, 0, 0);
 755                 }
 756
 757                 /* remove the TME_LEAVE flag */
 758                 TrackingList[i].tme.dwFlags ^= TME_LEAVE;
 759             }
 760             else {
 761                 GetClientRect(hwnd, &client);
 762                 MapWindowPoints(hwnd, NULL, (LPPOINT)&client, 2);
 763                 if(PtInRect(&client, pos)) {
 764                     if (nonclient) {
 765                         PostMessageA(TrackingList[i].tme.hwndTrack, WM_NCMOUSELEAVE, 0, 0);
 766                         /* remove the TME_LEAVE flag */
 767                         TrackingList[i].tme.dwFlags ^= TME_LEAVE;
 768                     }
 769                 }
 770                 else {
 771                     if (!nonclient) {
 772                         PostMessageA(TrackingList[i].tme.hwndTrack, WM_MOUSELEAVE, 0, 0);
 773                         /* remove the TME_LEAVE flag */
 774                         TrackingList[i].tme.dwFlags ^= TME_LEAVE;
 775                     }
 776                 }
 777             }
 778         }
 779
 780         /* see if we are tracking hovering for this hwnd */
 781         if(TrackingList[i].tme.dwFlags & TME_HOVER) {
 782             /* add the timer interval to the hovering time */
 783             TrackingList[i].iHoverTime+=iTimerInterval;
 784
 785             /* has the cursor moved outside the rectangle centered around pos? */
 786             if((abs(pos.x - TrackingList[i].pos.x) > (hoverwidth / 2.0))
 787               || (abs(pos.y - TrackingList[i].pos.y) > (hoverheight / 2.0)))
 788             {
 789                 /* record this new position as the current position and reset */
 790                 /* the iHoverTime variable to 0 */
 791                 TrackingList[i].pos = pos;
 792                 TrackingList[i].iHoverTime = 0;
 793             }
 794
 795             /* has the mouse hovered long enough? */
 796             if(TrackingList[i].iHoverTime <= TrackingList[i].tme.dwHoverTime)
 797             {
 798                 posClient.x = pos.x;
 799                 posClient.y = pos.y;
 800                 ScreenToClient(hwnd, &posClient);
 801                 if (nonclient) {
 802                     PostMessageW(TrackingList[i].tme.hwndTrack, WM_NCMOUSEHOVER,
 803                                 get_key_state(), MAKELPARAM( posClient.x, posClient.y ));
 804                 }
 805                 else {
 806                     PostMessageW(TrackingList[i].tme.hwndTrack, WM_MOUSEHOVER,
 807                                 get_key_state(), MAKELPARAM( posClient.x, posClient.y ));
 808                 }
 809
 810                 /* stop tracking mouse hover */
 811                 TrackingList[i].tme.dwFlags ^= TME_HOVER;
 812             }
 813         }
 814
 815         /* see if we are still tracking TME_HOVER or TME_LEAVE for this entry */
 816         if((TrackingList[i].tme.dwFlags & TME_HOVER) ||
 817            (TrackingList[i].tme.dwFlags & TME_LEAVE)) {
 818             i++;
 819         } else { /* remove this entry from the tracking list */
 820             TrackingList[i] = TrackingList[--iTrackMax];
 821         }
 822     }
 823
 824     /* stop the timer if the tracking list is empty */
 825     if(iTrackMax == 0) {
 826         KillTimer(0, timer);
 827         timer = 0;
 828     }
 829 }
 830
 831
 832 /***********************************************************************
 833  * TrackMouseEvent [USER32]
 834  *
 835  * Requests notification of mouse events
 836  *
 837  * During mouse tracking WM_MOUSEHOVER or WM_MOUSELEAVE events are posted
 838  * to the hwnd specified in the ptme structure.  After the event message
 839  * is posted to the hwnd, the entry in the queue is removed.
 840  *
 841  * If the current hwnd isn't ptme->hwndTrack the TME_HOVER flag is completely
 842  * ignored. The TME_LEAVE flag results in a WM_MOUSELEAVE message being posted
 843  * immediately and the TME_LEAVE flag being ignored.
 844  *
 845  * PARAMS
 846  *     ptme [I,O] pointer to TRACKMOUSEEVENT information structure.
 847  *
 848  * RETURNS
 849  *     Success: non-zero
 850  *     Failure: zero
 851  *
 852  */
 853
 854 BOOL WINAPI
 855 TrackMouseEvent (TRACKMOUSEEVENT *ptme)
 856 {
 857     DWORD flags = 0;
 858     int i = 0;
 859     BOOL cancel = 0, hover = 0, leave = 0, query = 0, nonclient = 0, inclient = 0;
 860     HWND hwnd;
 861     POINT pos;
 862     RECT client;
 863
 864
 865     pos.x = 0;
 866     pos.y = 0;
 867     SetRectEmpty(&client);
 868
 869     TRACE("%lx, %lx, %p, %lx\n", ptme->cbSize, ptme->dwFlags, ptme->hwndTrack, ptme->dwHoverTime);
 870
 871     if (ptme->cbSize != sizeof(TRACKMOUSEEVENT)) {
 872         WARN("wrong TRACKMOUSEEVENT size from app\n");
 873         SetLastError(ERROR_INVALID_PARAMETER); /* FIXME not sure if this is correct */
 874         return FALSE;
 875     }
 876
 877     flags = ptme->dwFlags;
 878
 879     /* if HOVER_DEFAULT was specified replace this with the systems current value */
 880     if(ptme->dwHoverTime == HOVER_DEFAULT)
 881         SystemParametersInfoA(SPI_GETMOUSEHOVERTIME, 0, &(ptme->dwHoverTime), 0);
 882
 883     GetCursorPos(&pos);
 884     hwnd = WindowFromPoint(pos);
 885
 886     if ( flags & TME_CANCEL ) {
 887         flags &= ~ TME_CANCEL;
 888         cancel = 1;
 889     }
 890
 891     if ( flags & TME_HOVER  ) {
 892         flags &= ~ TME_HOVER;
 893         hover = 1;
 894     }
 895
 896     if ( flags & TME_LEAVE ) {
 897         flags &= ~ TME_LEAVE;
 898         leave = 1;
 899     }
 900
 901     if ( flags & TME_NONCLIENT ) {
 902         flags &= ~ TME_NONCLIENT;
 903         nonclient = 1;
 904     }
 905
 906     /* fill the TRACKMOUSEEVENT struct with the current tracking for the given hwnd */
 907     if ( flags & TME_QUERY ) {
 908         flags &= ~ TME_QUERY;
 909         query = 1;
 910         i = 0;
 911
 912         /* Find the tracking list entry with the matching hwnd */
 913         while((i < iTrackMax) && (TrackingList[i].tme.hwndTrack != ptme->hwndTrack)) {
 914             i++;
 915         }
 916
 917         /* hwnd found, fill in the ptme struct */
 918         if(i < iTrackMax)
 919             *ptme = TrackingList[i].tme;
 920         else
 921             ptme->dwFlags = 0;
 922
 923         return TRUE; /* return here, TME_QUERY is retrieving information */
 924     }
 925
 926     if ( flags )
 927         FIXME("Unknown flag(s) %08lx\n", flags );
 928
 929     if(cancel) {
 930         /* find a matching hwnd if one exists */
 931         i = 0;
 932
 933         while((i < iTrackMax) && (TrackingList[i].tme.hwndTrack != ptme->hwndTrack)) {
 934           i++;
 935         }
 936
 937         if(i < iTrackMax) {
 938             TrackingList[i].tme.dwFlags &= ~(ptme->dwFlags & ~TME_CANCEL);
 939
 940             /* if we aren't tracking on hover or leave remove this entry */
 941             if(!((TrackingList[i].tme.dwFlags & TME_HOVER) ||
 942                  (TrackingList[i].tme.dwFlags & TME_LEAVE)))
 943             {
 944                 TrackingList[i] = TrackingList[--iTrackMax];
 945
 946                 if(iTrackMax == 0) {
 947                     KillTimer(0, timer);
 948                     timer = 0;
 949                 }
 950             }
 951         }
 952     } else {
 953         /* see if hwndTrack isn't the current window */
 954         if(ptme->hwndTrack != hwnd) {
 955             if(leave) {
 956                 if(nonclient) {
 957                     PostMessageA(ptme->hwndTrack, WM_NCMOUSELEAVE, 0, 0);
 958                 }
 959                 else {
 960                     PostMessageA(ptme->hwndTrack, WM_MOUSELEAVE, 0, 0);
 961                 }
 962             }
 963         } else {
 964             GetClientRect(ptme->hwndTrack, &client);
 965             MapWindowPoints(ptme->hwndTrack, NULL, (LPPOINT)&client, 2);
 966             if(PtInRect(&client, pos)) {
 967                 inclient = 1;
 968             }
 969             if(nonclient && inclient) {
 970                 PostMessageA(ptme->hwndTrack, WM_NCMOUSELEAVE, 0, 0);
 971                 return TRUE;
 972             }
 973             else if(!nonclient && !inclient) {
 974                 PostMessageA(ptme->hwndTrack, WM_MOUSELEAVE, 0, 0);
 975                 return TRUE;
 976             }
 977
 978             /* See if this hwnd is already being tracked and update the tracking flags */
 979             for(i = 0; i < iTrackMax; i++) {
 980                 if(TrackingList[i].tme.hwndTrack == ptme->hwndTrack) {
 981                     TrackingList[i].tme.dwFlags = 0;
 982
 983                     if(hover) {
 984                         TrackingList[i].tme.dwFlags |= TME_HOVER;
 985                         TrackingList[i].tme.dwHoverTime = ptme->dwHoverTime;
 986                     }
 987
 988                     if(leave)
 989                         TrackingList[i].tme.dwFlags |= TME_LEAVE;
 990
 991                     if(nonclient)
 992                         TrackingList[i].tme.dwFlags |= TME_NONCLIENT;
 993
 994                     /* reset iHoverTime as per winapi specs */
 995                     TrackingList[i].iHoverTime = 0;
 996
 997                     return TRUE;
 998                 }
 999             }
1000
1001             /* if the tracking list is full return FALSE */
1002             if (iTrackMax == sizeof (TrackingList) / sizeof(*TrackingList)) {
1003                 return FALSE;
1004             }
1005
1006             /* Adding new mouse event to the tracking list */
1007             TrackingList[iTrackMax].tme = *ptme;
1008
1009             /* Initialize HoverInfo variables even if not hover tracking */
1010             TrackingList[iTrackMax].iHoverTime = 0;
1011             TrackingList[iTrackMax].pos = pos;
1012
1013             iTrackMax++;
1014
1015             if (!timer) {
1016                 timer = SetTimer(0, 0, iTimerInterval, TrackMouseEventProc);
1017             }
1018         }
1019     }
1020
1021     return TRUE;
1022 }