dlls/user32/msg16.c

   1 /*
   2  * 16-bit messaging support
   3  *
   4  * Copyright 2001 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "wine/winuser16.h"
  22 #include "wownt32.h"
  23 #include "winerror.h"
  24 #include "win.h"
  25 #include "user_private.h"
  26 #include "winproc.h"
  27 #include "wine/debug.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(msg);
  30
  31 DWORD USER16_AlertableWait = 0;
  32
  33 static LRESULT cwp_hook_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
  34                                   LRESULT *result, void *arg )
  35 {
  36     CWPSTRUCT cwp;
  37
  38     cwp.hwnd    = hwnd;
  39     cwp.message = msg;
  40     cwp.wParam  = wp;
  41     cwp.lParam  = lp;
  42     *result = 0;
  43     return HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, 1, (LPARAM)&cwp, FALSE );
  44 }
  45
  46 static LRESULT send_message_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
  47                                       LRESULT *result, void *arg )
  48 {
  49     *result = SendMessageA( hwnd, msg, wp, lp );
  50     return *result;
  51 }
  52
  53 static LRESULT post_message_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
  54                                       LRESULT *result, void *arg )
  55 {
  56     *result = 0;
  57     return PostMessageA( hwnd, msg, wp, lp );
  58 }
  59
  60 static LRESULT post_thread_message_callback( HWND hwnd, UINT msg, WPARAM wp, LPARAM lp,
  61                                              LRESULT *result, void *arg )
  62 {
  63     DWORD_PTR tid = (DWORD_PTR)arg;
  64     *result = 0;
  65     return PostThreadMessageA( tid, msg, wp, lp );
  66 }
  67
  68 static LRESULT get_message_callback( HWND16 hwnd, UINT16 msg, WPARAM16 wp, LPARAM lp,
  69                                      LRESULT *result, void *arg )
  70 {
  71     MSG16 *msg16 = arg;
  72
  73     msg16->hwnd    = hwnd;
  74     msg16->message = msg;
  75     msg16->wParam  = wp;
  76     msg16->lParam  = lp;
  77     *result = 0;
  78     return 0;
  79 }
  80
  81
  82 /***********************************************************************
  83  *              SendMessage  (USER.111)
  84  */
  85 LRESULT WINAPI SendMessage16( HWND16 hwnd16, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
  86 {
  87     LRESULT result;
  88     HWND hwnd = WIN_Handle32( hwnd16 );
  89
  90     if (hwnd != HWND_BROADCAST && WIN_IsCurrentThread(hwnd))
  91     {
  92         /* call 16-bit window proc directly */
  93         WNDPROC16 winproc;
  94
  95         /* first the WH_CALLWNDPROC hook */
  96         if (HOOK_IsHooked( WH_CALLWNDPROC ))
  97             WINPROC_CallProc16To32A( cwp_hook_callback, hwnd16, msg, wparam, lparam, &result, NULL );
  98
  99         if (!(winproc = (WNDPROC16)GetWindowLong16( hwnd16, GWLP_WNDPROC ))) return 0;
 100
 101         SPY_EnterMessage( SPY_SENDMESSAGE16, hwnd, msg, wparam, lparam );
 102         result = CallWindowProc16( winproc, hwnd16, msg, wparam, lparam );
 103         SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg, result, wparam, lparam );
 104     }
 105     else  /* map to 32-bit unicode for inter-thread/process message */
 106     {
 107         WINPROC_CallProc16To32A( send_message_callback, hwnd16, msg, wparam, lparam, &result, NULL );
 108     }
 109     return result;
 110 }
 111
 112
 113 /***********************************************************************
 114  *              PostMessage  (USER.110)
 115  */
 116 BOOL16 WINAPI PostMessage16( HWND16 hwnd, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
 117 {
 118     LRESULT unused;
 119     return WINPROC_CallProc16To32A( post_message_callback, hwnd, msg, wparam, lparam, &unused, NULL );
 120 }
 121
 122
 123 /***********************************************************************
 124  *              PostAppMessage (USER.116)
 125  */
 126 BOOL16 WINAPI PostAppMessage16( HTASK16 hTask, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
 127 {
 128     LRESULT unused;
 129     DWORD_PTR tid = HTASK_32( hTask );
 130
 131     if (!tid) return FALSE;
 132     return WINPROC_CallProc16To32A( post_thread_message_callback, 0, msg, wparam, lparam,
 133                                     &unused, (void *)tid );
 134 }
 135
 136
 137 /***********************************************************************
 138  *              InSendMessage  (USER.192)
 139  */
 140 BOOL16 WINAPI InSendMessage16(void)
 141 {
 142     return InSendMessage();
 143 }
 144
 145
 146 /***********************************************************************
 147  *              ReplyMessage  (USER.115)
 148  */
 149 void WINAPI ReplyMessage16( LRESULT result )
 150 {
 151     ReplyMessage( result );
 152 }
 153
 154
 155 /***********************************************************************
 156  *              PeekMessage32 (USER.819)
 157  */
 158 BOOL16 WINAPI PeekMessage32_16( MSG32_16 *msg16, HWND16 hwnd16,
 159                                 UINT16 first, UINT16 last, UINT16 flags,
 160                                 BOOL16 wHaveParamHigh )
 161 {
 162     MSG msg;
 163     LRESULT unused;
 164     HWND hwnd = WIN_Handle32( hwnd16 );
 165
 166     if(USER16_AlertableWait)
 167         MsgWaitForMultipleObjectsEx( 0, NULL, 0, 0, MWMO_ALERTABLE );
 168     if (!PeekMessageA( &msg, hwnd, first, last, flags )) return FALSE;
 169
 170     msg16->msg.time    = msg.time;
 171     msg16->msg.pt.x    = (INT16)msg.pt.x;
 172     msg16->msg.pt.y    = (INT16)msg.pt.y;
 173     if (wHaveParamHigh) msg16->wParamHigh = HIWORD(msg.wParam);
 174     WINPROC_CallProc32ATo16( get_message_callback, msg.hwnd, msg.message, msg.wParam, msg.lParam,
 175                              &unused, &msg16->msg );
 176     return TRUE;
 177 }
 178
 179
 180 /***********************************************************************
 181  *              DefWindowProc (USER.107)
 182  */
 183 LRESULT WINAPI DefWindowProc16( HWND16 hwnd16, UINT16 msg, WPARAM16 wParam, LPARAM lParam )
 184 {
 185     LRESULT result;
 186     HWND hwnd = WIN_Handle32( hwnd16 );
 187
 188     SPY_EnterMessage( SPY_DEFWNDPROC16, hwnd, msg, wParam, lParam );
 189
 190     switch(msg)
 191     {
 192     case WM_NCCREATE:
 193         {
 194             CREATESTRUCT16 *cs16 = MapSL(lParam);
 195             CREATESTRUCTA cs32;
 196
 197             cs32.lpCreateParams = ULongToPtr(cs16->lpCreateParams);
 198             cs32.hInstance      = HINSTANCE_32(cs16->hInstance);
 199             cs32.hMenu          = HMENU_32(cs16->hMenu);
 200             cs32.hwndParent     = WIN_Handle32(cs16->hwndParent);
 201             cs32.cy             = cs16->cy;
 202             cs32.cx             = cs16->cx;
 203             cs32.y              = cs16->y;
 204             cs32.x              = cs16->x;
 205             cs32.style          = cs16->style;
 206             cs32.dwExStyle      = cs16->dwExStyle;
 207             cs32.lpszName       = MapSL(cs16->lpszName);
 208             cs32.lpszClass      = MapSL(cs16->lpszClass);
 209             result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)&cs32 );
 210         }
 211         break;
 212
 213     case WM_NCCALCSIZE:
 214         {
 215             RECT16 *rect16 = MapSL(lParam);
 216             RECT rect32;
 217
 218             rect32.left    = rect16->left;
 219             rect32.top     = rect16->top;
 220             rect32.right   = rect16->right;
 221             rect32.bottom  = rect16->bottom;
 222
 223             result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)&rect32 );
 224
 225             rect16->left   = rect32.left;
 226             rect16->top    = rect32.top;
 227             rect16->right  = rect32.right;
 228             rect16->bottom = rect32.bottom;
 229         }
 230         break;
 231
 232     case WM_WINDOWPOSCHANGING:
 233     case WM_WINDOWPOSCHANGED:
 234         {
 235             WINDOWPOS16 *pos16 = MapSL(lParam);
 236             WINDOWPOS pos32;
 237
 238             pos32.hwnd             = WIN_Handle32(pos16->hwnd);
 239             pos32.hwndInsertAfter  = WIN_Handle32(pos16->hwndInsertAfter);
 240             pos32.x                = pos16->x;
 241             pos32.y                = pos16->y;
 242             pos32.cx               = pos16->cx;
 243             pos32.cy               = pos16->cy;
 244             pos32.flags            = pos16->flags;
 245
 246             result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)&pos32 );
 247
 248             pos16->hwnd            = HWND_16(pos32.hwnd);
 249             pos16->hwndInsertAfter = HWND_16(pos32.hwndInsertAfter);
 250             pos16->x               = pos32.x;
 251             pos16->y               = pos32.y;
 252             pos16->cx              = pos32.cx;
 253             pos16->cy              = pos32.cy;
 254             pos16->flags           = pos32.flags;
 255         }
 256         break;
 257
 258     case WM_GETTEXT:
 259     case WM_SETTEXT:
 260         result = DefWindowProcA( hwnd, msg, wParam, (LPARAM)MapSL(lParam) );
 261         break;
 262
 263     default:
 264         result = DefWindowProcA( hwnd, msg, wParam, lParam );
 265         break;
 266     }
 267
 268     SPY_ExitMessage( SPY_RESULT_DEFWND16, hwnd, msg, result, wParam, lParam );
 269     return result;
 270 }
 271
 272
 273 /***********************************************************************
 274  *              PeekMessage  (USER.109)
 275  */
 276 BOOL16 WINAPI PeekMessage16( MSG16 *msg, HWND16 hwnd,
 277                              UINT16 first, UINT16 last, UINT16 flags )
 278 {
 279     return PeekMessage32_16( (MSG32_16 *)msg, hwnd, first, last, flags, FALSE );
 280 }
 281
 282
 283 /***********************************************************************
 284  *              GetMessage32  (USER.820)
 285  */
 286 BOOL16 WINAPI GetMessage32_16( MSG32_16 *msg16, HWND16 hwnd16, UINT16 first,
 287                                UINT16 last, BOOL16 wHaveParamHigh )
 288 {
 289     MSG msg;
 290     LRESULT unused;
 291     HWND hwnd = WIN_Handle32( hwnd16 );
 292
 293     if(USER16_AlertableWait)
 294         MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, 0, MWMO_ALERTABLE );
 295     GetMessageA( &msg, hwnd, first, last );
 296     msg16->msg.time    = msg.time;
 297     msg16->msg.pt.x    = (INT16)msg.pt.x;
 298     msg16->msg.pt.y    = (INT16)msg.pt.y;
 299     if (wHaveParamHigh) msg16->wParamHigh = HIWORD(msg.wParam);
 300     WINPROC_CallProc32ATo16( get_message_callback, msg.hwnd, msg.message, msg.wParam, msg.lParam,
 301                              &unused, &msg16->msg );
 302
 303     TRACE( "message %04x, hwnd %p, filter(%04x - %04x)\n",
 304            msg16->msg.message, hwnd, first, last );
 305
 306     return msg16->msg.message != WM_QUIT;
 307 }
 308
 309
 310 /***********************************************************************
 311  *              GetMessage  (USER.108)
 312  */
 313 BOOL16 WINAPI GetMessage16( MSG16 *msg, HWND16 hwnd, UINT16 first, UINT16 last )
 314 {
 315     return GetMessage32_16( (MSG32_16 *)msg, hwnd, first, last, FALSE );
 316 }
 317
 318
 319 /***********************************************************************
 320  *              TranslateMessage32 (USER.821)
 321  */
 322 BOOL16 WINAPI TranslateMessage32_16( const MSG32_16 *msg, BOOL16 wHaveParamHigh )
 323 {
 324     MSG msg32;
 325
 326     msg32.hwnd    = WIN_Handle32( msg->msg.hwnd );
 327     msg32.message = msg->msg.message;
 328     msg32.wParam  = MAKEWPARAM( msg->msg.wParam, wHaveParamHigh ? msg->wParamHigh : 0 );
 329     msg32.lParam  = msg->msg.lParam;
 330     return TranslateMessage( &msg32 );
 331 }
 332
 333
 334 /***********************************************************************
 335  *              TranslateMessage (USER.113)
 336  */
 337 BOOL16 WINAPI TranslateMessage16( const MSG16 *msg )
 338 {
 339     return TranslateMessage32_16( (const MSG32_16 *)msg, FALSE );
 340 }
 341
 342
 343 /***********************************************************************
 344  *              DispatchMessage (USER.114)
 345  */
 346 LONG WINAPI DispatchMessage16( const MSG16* msg )
 347 {
 348     WND * wndPtr;
 349     WNDPROC16 winproc;
 350     LONG retval;
 351     HWND hwnd = WIN_Handle32( msg->hwnd );
 352
 353       /* Process timer messages */
 354     if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
 355     {
 356         if (msg->lParam)
 357             return CallWindowProc16( (WNDPROC16)msg->lParam, msg->hwnd,
 358                                      msg->message, msg->wParam, GetTickCount() );
 359     }
 360
 361     if (!(wndPtr = WIN_GetPtr( hwnd )))
 362     {
 363         if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 364         return 0;
 365     }
 366     if (wndPtr == WND_OTHER_PROCESS || wndPtr == WND_DESKTOP)
 367     {
 368         if (IsWindow( hwnd )) SetLastError( ERROR_MESSAGE_SYNC_ONLY );
 369         else SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 370         return 0;
 371     }
 372     winproc = WINPROC_GetProc16( wndPtr->winproc, wndPtr->flags & WIN_ISUNICODE );
 373     WIN_ReleasePtr( wndPtr );
 374
 375     SPY_EnterMessage( SPY_DISPATCHMESSAGE16, hwnd, msg->message, msg->wParam, msg->lParam );
 376     retval = CallWindowProc16( winproc, msg->hwnd, msg->message, msg->wParam, msg->lParam );
 377     SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg->message, retval, msg->wParam, msg->lParam );
 378
 379     return retval;
 380 }
 381
 382
 383 /***********************************************************************
 384  *              DispatchMessage32 (USER.822)
 385  */
 386 LONG WINAPI DispatchMessage32_16( const MSG32_16 *msg16, BOOL16 wHaveParamHigh )
 387 {
 388     if (wHaveParamHigh == FALSE)
 389         return DispatchMessage16( &msg16->msg );
 390     else
 391     {
 392         MSG msg;
 393
 394         msg.hwnd    = WIN_Handle32( msg16->msg.hwnd );
 395         msg.message = msg16->msg.message;
 396         msg.wParam  = MAKEWPARAM( msg16->msg.wParam, msg16->wParamHigh );
 397         msg.lParam  = msg16->msg.lParam;
 398         msg.time    = msg16->msg.time;
 399         msg.pt.x    = msg16->msg.pt.x;
 400         msg.pt.y    = msg16->msg.pt.y;
 401         return DispatchMessageA( &msg );
 402     }
 403 }
 404
 405
 406 /***********************************************************************
 407  *              IsDialogMessage (USER.90)
 408  */
 409 BOOL16 WINAPI IsDialogMessage16( HWND16 hwndDlg, MSG16 *msg16 )
 410 {
 411     MSG msg;
 412     HWND hwndDlg32;
 413
 414     msg.hwnd  = WIN_Handle32(msg16->hwnd);
 415     hwndDlg32 = WIN_Handle32(hwndDlg);
 416
 417     switch(msg16->message)
 418     {
 419     case WM_KEYDOWN:
 420     case WM_CHAR:
 421     case WM_SYSCHAR:
 422         msg.message = msg16->message;
 423         msg.wParam  = msg16->wParam;
 424         msg.lParam  = msg16->lParam;
 425         return IsDialogMessageA( hwndDlg32, &msg );
 426     }
 427
 428     if ((hwndDlg32 != msg.hwnd) && !IsChild( hwndDlg32, msg.hwnd )) return FALSE;
 429     TranslateMessage16( msg16 );
 430     DispatchMessage16( msg16 );
 431     return TRUE;
 432 }
 433
 434
 435 /***********************************************************************
 436  *              MsgWaitForMultipleObjects  (USER.640)
 437  */
 438 DWORD WINAPI MsgWaitForMultipleObjects16( DWORD count, CONST HANDLE *handles,
 439                                           BOOL wait_all, DWORD timeout, DWORD mask )
 440 {
 441     return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
 442                                         wait_all ? MWMO_WAITALL : 0 );
 443 }
 444
 445
 446 /**********************************************************************
 447  *              SetDoubleClickTime (USER.20)
 448  */
 449 void WINAPI SetDoubleClickTime16( UINT16 interval )
 450 {
 451     SetDoubleClickTime( interval );
 452 }
 453
 454
 455 /**********************************************************************
 456  *              GetDoubleClickTime (USER.21)
 457  */
 458 UINT16 WINAPI GetDoubleClickTime16(void)
 459 {
 460     return GetDoubleClickTime();
 461 }
 462
 463
 464 /***********************************************************************
 465  *              PostQuitMessage (USER.6)
 466  */
 467 void WINAPI PostQuitMessage16( INT16 exitCode )
 468 {
 469     PostQuitMessage( exitCode );
 470 }
 471
 472
 473 /**********************************************************************
 474  *              GetKeyState (USER.106)
 475  */
 476 INT16 WINAPI GetKeyState16(INT16 vkey)
 477 {
 478     return GetKeyState(vkey);
 479 }
 480
 481
 482 /**********************************************************************
 483  *              GetKeyboardState (USER.222)
 484  */
 485 BOOL WINAPI GetKeyboardState16( LPBYTE state )
 486 {
 487     return GetKeyboardState( state );
 488 }
 489
 490
 491 /**********************************************************************
 492  *              SetKeyboardState (USER.223)
 493  */
 494 BOOL WINAPI SetKeyboardState16( LPBYTE state )
 495 {
 496     return SetKeyboardState( state );
 497 }
 498
 499
 500 /***********************************************************************
 501  *              SetMessageQueue (USER.266)
 502  */
 503 BOOL16 WINAPI SetMessageQueue16( INT16 size )
 504 {
 505     return SetMessageQueue( size );
 506 }
 507
 508
 509 /***********************************************************************
 510  *              GetQueueStatus (USER.334)
 511  */
 512 DWORD WINAPI GetQueueStatus16( UINT16 flags )
 513 {
 514     return GetQueueStatus( flags );
 515 }
 516
 517
 518 /***********************************************************************
 519  *              GetInputState (USER.335)
 520  */
 521 BOOL16 WINAPI GetInputState16(void)
 522 {
 523     return GetInputState();
 524 }
 525
 526
 527 /**********************************************************************
 528  *           TranslateAccelerator      (USER.178)
 529  */
 530 INT16 WINAPI TranslateAccelerator16( HWND16 hwnd, HACCEL16 hAccel, LPMSG16 msg )
 531 {
 532     MSG msg32;
 533
 534     if (!msg) return 0;
 535     msg32.message = msg->message;
 536     /* msg32.hwnd not used */
 537     msg32.wParam  = msg->wParam;
 538     msg32.lParam  = msg->lParam;
 539     return TranslateAcceleratorW( WIN_Handle32(hwnd), HACCEL_32(hAccel), &msg32 );
 540 }
 541
 542
 543 /**********************************************************************
 544  *              TranslateMDISysAccel (USER.451)
 545  */
 546 BOOL16 WINAPI TranslateMDISysAccel16( HWND16 hwndClient, LPMSG16 msg )
 547 {
 548     if (msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN)
 549     {
 550         MSG msg32;
 551         msg32.hwnd    = WIN_Handle32(msg->hwnd);
 552         msg32.message = msg->message;
 553         msg32.wParam  = msg->wParam;
 554         msg32.lParam  = msg->lParam;
 555         /* MDICLIENTINFO is still the same for win32 and win16 ... */
 556         return TranslateMDISysAccel( WIN_Handle32(hwndClient), &msg32 );
 557     }
 558     return 0;
 559 }