dlls/user/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "wine/winuser16.h"
  22 #include "wownt32.h"
  23 #include "winerror.h"
  24 #include "message.h"
  25 #include "win.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 /***********************************************************************
  34  *              SendMessage  (USER.111)
  35  */
  36 LRESULT WINAPI SendMessage16( HWND16 hwnd16, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
  37 {
  38     LRESULT result;
  39     UINT msg32;
  40     WPARAM wparam32;
  41     HWND hwnd = WIN_Handle32( hwnd16 );
  42
  43     if (hwnd != HWND_BROADCAST && WIN_IsCurrentThread(hwnd))
  44     {
  45         /* call 16-bit window proc directly */
  46         WNDPROC16 winproc;
  47
  48         /* first the WH_CALLWNDPROC hook */
  49         if (HOOK_IsHooked( WH_CALLWNDPROC ))
  50         {
  51             LPARAM lparam32 = lparam;
  52
  53             if (WINPROC_MapMsg16To32A( hwnd, msg, wparam, &msg32, &wparam32, &lparam32 ) != -1)
  54             {
  55                 CWPSTRUCT cwp;
  56
  57                 cwp.hwnd    = hwnd;
  58                 cwp.message = msg32;
  59                 cwp.wParam  = wparam32;
  60                 cwp.lParam  = lparam32;
  61                 HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, 1, (LPARAM)&cwp, FALSE );
  62                 WINPROC_UnmapMsg16To32A( hwnd, msg32, wparam32, lparam32, 0 );
  63                 /* FIXME: should reflect changes back into the message we send */
  64             }
  65         }
  66
  67         if (!(winproc = (WNDPROC16)GetWindowLong16( hwnd16, GWL_WNDPROC ))) return 0;
  68
  69         SPY_EnterMessage( SPY_SENDMESSAGE16, hwnd, msg, wparam, lparam );
  70         result = CallWindowProc16( (WNDPROC16)winproc, hwnd16, msg, wparam, lparam );
  71         SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg, result, wparam, lparam );
  72     }
  73     else  /* map to 32-bit unicode for inter-thread/process message */
  74     {
  75         if (WINPROC_MapMsg16To32W( hwnd, msg, wparam, &msg32, &wparam32, &lparam ) == -1)
  76             return 0;
  77         result = WINPROC_UnmapMsg16To32W( hwnd, msg32, wparam32, lparam,
  78                                           SendMessageW( hwnd, msg32, wparam32, lparam ) );
  79     }
  80     return result;
  81 }
  82
  83
  84 /***********************************************************************
  85  *              PostMessage  (USER.110)
  86  */
  87 BOOL16 WINAPI PostMessage16( HWND16 hwnd16, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
  88 {
  89     WPARAM wparam32;
  90     UINT msg32;
  91     HWND hwnd = WIN_Handle32( hwnd16 );
  92
  93     switch (WINPROC_MapMsg16To32W( hwnd, msg, wparam, &msg32, &wparam32, &lparam ))
  94     {
  95     case 0:
  96         return PostMessageW( hwnd, msg32, wparam32, lparam );
  97     case 1:
  98         ERR( "16-bit message 0x%04x contains pointer, cannot post\n", msg );
  99         return FALSE;
 100     default:
 101         return FALSE;
 102     }
 103 }
 104
 105
 106 /***********************************************************************
 107  *              PostAppMessage (USER.116)
 108  */
 109 BOOL16 WINAPI PostAppMessage16( HTASK16 hTask, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
 110 {
 111     WPARAM wparam32;
 112     UINT msg32;
 113     DWORD tid = HTASK_32( hTask );
 114     if (!tid) return FALSE;
 115
 116     switch (WINPROC_MapMsg16To32W( 0, msg, wparam, &msg32, &wparam32, &lparam ))
 117     {
 118     case 0:
 119         return PostThreadMessageW( tid, msg32, wparam32, lparam );
 120     case 1:
 121         ERR( "16-bit message %x contains pointer, cannot post\n", msg );
 122         return FALSE;
 123     default:
 124         return FALSE;
 125     }
 126 }
 127
 128
 129 /***********************************************************************
 130  *              InSendMessage  (USER.192)
 131  */
 132 BOOL16 WINAPI InSendMessage16(void)
 133 {
 134     return InSendMessage();
 135 }
 136
 137
 138 /***********************************************************************
 139  *              ReplyMessage  (USER.115)
 140  */
 141 void WINAPI ReplyMessage16( LRESULT result )
 142 {
 143     ReplyMessage( result );
 144 }
 145
 146
 147 /***********************************************************************
 148  *              PeekMessage32 (USER.819)
 149  */
 150 BOOL16 WINAPI PeekMessage32_16( MSG32_16 *msg16, HWND16 hwnd16,
 151                                 UINT16 first, UINT16 last, UINT16 flags,
 152                                 BOOL16 wHaveParamHigh )
 153 {
 154     MSG msg;
 155     HWND hwnd = WIN_Handle32( hwnd16 );
 156
 157     if(USER16_AlertableWait)
 158         MsgWaitForMultipleObjectsEx( 0, NULL, 1, 0, MWMO_ALERTABLE );
 159     if (!PeekMessageW( &msg, hwnd, first, last, flags )) return FALSE;
 160
 161     msg16->msg.hwnd    = HWND_16( msg.hwnd );
 162     msg16->msg.lParam  = msg.lParam;
 163     msg16->msg.time    = msg.time;
 164     msg16->msg.pt.x    = (INT16)msg.pt.x;
 165     msg16->msg.pt.y    = (INT16)msg.pt.y;
 166     if (wHaveParamHigh) msg16->wParamHigh = HIWORD(msg.wParam);
 167
 168     return (WINPROC_MapMsg32WTo16( msg.hwnd, msg.message, msg.wParam,
 169                                    &msg16->msg.message, &msg16->msg.wParam,
 170                                    &msg16->msg.lParam ) != -1);
 171 }
 172
 173
 174 /***********************************************************************
 175  *              PeekMessage  (USER.109)
 176  */
 177 BOOL16 WINAPI PeekMessage16( MSG16 *msg, HWND16 hwnd,
 178                              UINT16 first, UINT16 last, UINT16 flags )
 179 {
 180     return PeekMessage32_16( (MSG32_16 *)msg, hwnd, first, last, flags, FALSE );
 181 }
 182
 183
 184 /***********************************************************************
 185  *              GetMessage32  (USER.820)
 186  */
 187 BOOL16 WINAPI GetMessage32_16( MSG32_16 *msg16, HWND16 hwnd16, UINT16 first,
 188                                UINT16 last, BOOL16 wHaveParamHigh )
 189 {
 190     MSG msg;
 191     HWND hwnd = WIN_Handle32( hwnd16 );
 192
 193     do
 194     {
 195         if(USER16_AlertableWait)
 196             MsgWaitForMultipleObjectsEx( 0, NULL, INFINITE, 0, MWMO_ALERTABLE );
 197         GetMessageW( &msg, hwnd, first, last );
 198         msg16->msg.hwnd    = HWND_16( msg.hwnd );
 199         msg16->msg.lParam  = msg.lParam;
 200         msg16->msg.time    = msg.time;
 201         msg16->msg.pt.x    = (INT16)msg.pt.x;
 202         msg16->msg.pt.y    = (INT16)msg.pt.y;
 203         if (wHaveParamHigh) msg16->wParamHigh = HIWORD(msg.wParam);
 204     }
 205     while (WINPROC_MapMsg32WTo16( msg.hwnd, msg.message, msg.wParam,
 206                                   &msg16->msg.message, &msg16->msg.wParam,
 207                                   &msg16->msg.lParam ) == -1);
 208
 209     TRACE( "message %04x, hwnd %p, filter(%04x - %04x)\n",
 210            msg16->msg.message, hwnd, first, last );
 211
 212     return msg16->msg.message != WM_QUIT;
 213 }
 214
 215
 216 /***********************************************************************
 217  *              GetMessage  (USER.108)
 218  */
 219 BOOL16 WINAPI GetMessage16( MSG16 *msg, HWND16 hwnd, UINT16 first, UINT16 last )
 220 {
 221     return GetMessage32_16( (MSG32_16 *)msg, hwnd, first, last, FALSE );
 222 }
 223
 224
 225 /***********************************************************************
 226  *              TranslateMessage32 (USER.821)
 227  */
 228 BOOL16 WINAPI TranslateMessage32_16( const MSG32_16 *msg, BOOL16 wHaveParamHigh )
 229 {
 230     MSG msg32;
 231
 232     msg32.hwnd    = WIN_Handle32( msg->msg.hwnd );
 233     msg32.message = msg->msg.message;
 234     msg32.wParam  = MAKEWPARAM( msg->msg.wParam, wHaveParamHigh ? msg->wParamHigh : 0 );
 235     msg32.lParam  = msg->msg.lParam;
 236     return TranslateMessage( &msg32 );
 237 }
 238
 239
 240 /***********************************************************************
 241  *              TranslateMessage (USER.113)
 242  */
 243 BOOL16 WINAPI TranslateMessage16( const MSG16 *msg )
 244 {
 245     return TranslateMessage32_16( (MSG32_16 *)msg, FALSE );
 246 }
 247
 248
 249 /***********************************************************************
 250  *              DispatchMessage (USER.114)
 251  */
 252 LONG WINAPI DispatchMessage16( const MSG16* msg )
 253 {
 254     WND * wndPtr;
 255     WNDPROC16 winproc;
 256     LONG retval;
 257     int painting;
 258     HWND hwnd = WIN_Handle32( msg->hwnd );
 259
 260       /* Process timer messages */
 261     if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
 262     {
 263         if (msg->lParam)
 264         {
 265             /* before calling window proc, verify whether timer is still valid;
 266                there's a slim chance that the application kills the timer
 267                between GetMessage and DispatchMessage API calls */
 268             if (!TIMER_IsTimerValid(hwnd, (UINT) msg->wParam, (WNDPROC)msg->lParam))
 269                 return 0; /* invalid winproc */
 270
 271             return CallWindowProc16( (WNDPROC16)msg->lParam, msg->hwnd,
 272                                      msg->message, msg->wParam, GetTickCount() );
 273         }
 274     }
 275
 276     if (!(wndPtr = WIN_GetPtr( hwnd )))
 277     {
 278         if (msg->hwnd) SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 279         return 0;
 280     }
 281     if (wndPtr == WND_OTHER_PROCESS)
 282     {
 283         if (IsWindow( hwnd ))
 284             ERR( "cannot dispatch msg to other process window %p\n", hwnd );
 285         SetLastError( ERROR_INVALID_WINDOW_HANDLE );
 286         return 0;
 287     }
 288
 289     if (!(winproc = (WNDPROC16)wndPtr->winproc))
 290     {
 291         WIN_ReleasePtr( wndPtr );
 292         return 0;
 293     }
 294     painting = (msg->message == WM_PAINT);
 295     if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT;
 296     WIN_ReleasePtr( wndPtr );
 297
 298     SPY_EnterMessage( SPY_DISPATCHMESSAGE16, hwnd, msg->message, msg->wParam, msg->lParam );
 299     retval = CallWindowProc16( winproc, msg->hwnd, msg->message, msg->wParam, msg->lParam );
 300     SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg->message, retval, msg->wParam, msg->lParam );
 301
 302     if (painting && (wndPtr = WIN_GetPtr( hwnd )) && (wndPtr != WND_OTHER_PROCESS))
 303     {
 304         BOOL validate = ((wndPtr->flags & WIN_NEEDS_BEGINPAINT) && wndPtr->hrgnUpdate);
 305         wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
 306         WIN_ReleasePtr( wndPtr );
 307         if (validate)
 308         {
 309             ERR( "BeginPaint not called on WM_PAINT for hwnd %p!\n", hwnd );
 310             /* Validate the update region to avoid infinite WM_PAINT loop */
 311             RedrawWindow( hwnd, NULL, 0,
 312                           RDW_NOFRAME | RDW_VALIDATE | RDW_NOCHILDREN | RDW_NOINTERNALPAINT );
 313         }
 314     }
 315     return retval;
 316 }
 317
 318
 319 /***********************************************************************
 320  *              DispatchMessage32 (USER.822)
 321  */
 322 LONG WINAPI DispatchMessage32_16( const MSG32_16 *msg16, BOOL16 wHaveParamHigh )
 323 {
 324     if (wHaveParamHigh == FALSE)
 325         return DispatchMessage16( &msg16->msg );
 326     else
 327     {
 328         MSG msg;
 329
 330         msg.hwnd    = WIN_Handle32( msg16->msg.hwnd );
 331         msg.message = msg16->msg.message;
 332         msg.wParam  = MAKEWPARAM( msg16->msg.wParam, msg16->wParamHigh );
 333         msg.lParam  = msg16->msg.lParam;
 334         msg.time    = msg16->msg.time;
 335         msg.pt.x    = msg16->msg.pt.x;
 336         msg.pt.y    = msg16->msg.pt.y;
 337         return DispatchMessageA( &msg );
 338     }
 339 }
 340
 341
 342 /***********************************************************************
 343  *              IsDialogMessage (USER.90)
 344  */
 345 BOOL16 WINAPI IsDialogMessage16( HWND16 hwndDlg, MSG16 *msg16 )
 346 {
 347     MSG msg;
 348
 349     switch(msg16->message)
 350     {
 351     case WM_KEYDOWN:
 352     case WM_CHAR:
 353     case WM_SYSCHAR:
 354         msg.hwnd   = WIN_Handle32(msg16->hwnd);
 355         msg.lParam = msg16->lParam;
 356         WINPROC_MapMsg16To32W( msg.hwnd, msg16->message, msg16->wParam,
 357                                &msg.message, &msg.wParam, &msg.lParam );
 358         /* these messages don't need an unmap */
 359         return IsDialogMessageW( WIN_Handle32(hwndDlg), &msg );
 360     }
 361     TranslateMessage16( msg16 );
 362     DispatchMessage16( msg16 );
 363     return TRUE;
 364 }
 365
 366
 367 /***********************************************************************
 368  *              MsgWaitForMultipleObjects  (USER.640)
 369  */
 370 DWORD WINAPI MsgWaitForMultipleObjects16( DWORD count, CONST HANDLE *handles,
 371                                           BOOL wait_all, DWORD timeout, DWORD mask )
 372 {
 373     return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
 374                                         wait_all ? MWMO_WAITALL : 0 );
 375 }
 376
 377
 378 /**********************************************************************
 379  *              SetDoubleClickTime (USER.20)
 380  */
 381 void WINAPI SetDoubleClickTime16( UINT16 interval )
 382 {
 383     SetDoubleClickTime( interval );
 384 }
 385
 386
 387 /**********************************************************************
 388  *              GetDoubleClickTime (USER.21)
 389  */
 390 UINT16 WINAPI GetDoubleClickTime16(void)
 391 {
 392     return GetDoubleClickTime();
 393 }
 394
 395
 396 /***********************************************************************
 397  *              PostQuitMessage (USER.6)
 398  */
 399 void WINAPI PostQuitMessage16( INT16 exitCode )
 400 {
 401     PostQuitMessage( exitCode );
 402 }
 403
 404
 405 /**********************************************************************
 406  *              GetKeyState (USER.106)
 407  */
 408 INT16 WINAPI GetKeyState16(INT16 vkey)
 409 {
 410     return GetKeyState(vkey);
 411 }
 412
 413
 414 /**********************************************************************
 415  *              GetKeyboardState (USER.222)
 416  */
 417 BOOL WINAPI GetKeyboardState16( LPBYTE state )
 418 {
 419     return GetKeyboardState( state );
 420 }
 421
 422
 423 /**********************************************************************
 424  *              SetKeyboardState (USER.223)
 425  */
 426 BOOL WINAPI SetKeyboardState16( LPBYTE state )
 427 {
 428     return SetKeyboardState( state );
 429 }
 430
 431
 432 /***********************************************************************
 433  *              SetMessageQueue (USER.266)
 434  */
 435 BOOL16 WINAPI SetMessageQueue16( INT16 size )
 436 {
 437     return SetMessageQueue( size );
 438 }
 439
 440
 441 /***********************************************************************
 442  *              GetQueueStatus (USER.334)
 443  */
 444 DWORD WINAPI GetQueueStatus16( UINT16 flags )
 445 {
 446     return GetQueueStatus( flags );
 447 }
 448
 449
 450 /***********************************************************************
 451  *              GetInputState (USER.335)
 452  */
 453 BOOL16 WINAPI GetInputState16(void)
 454 {
 455     return GetInputState();
 456 }
 457
 458
 459 /**********************************************************************
 460  *           TranslateAccelerator      (USER.178)
 461  */
 462 INT16 WINAPI TranslateAccelerator16( HWND16 hwnd, HACCEL16 hAccel, LPMSG16 msg )
 463 {
 464     MSG msg32;
 465
 466     if (!msg) return 0;
 467     msg32.message = msg->message;
 468     /* msg32.hwnd not used */
 469     msg32.wParam  = msg->wParam;
 470     msg32.lParam  = msg->lParam;
 471     return TranslateAcceleratorW( WIN_Handle32(hwnd), HACCEL_32(hAccel), &msg32 );
 472 }
 473
 474
 475 /**********************************************************************
 476  *              TranslateMDISysAccel (USER.451)
 477  */
 478 BOOL16 WINAPI TranslateMDISysAccel16( HWND16 hwndClient, LPMSG16 msg )
 479 {
 480     if (msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN)
 481     {
 482         MSG msg32;
 483         msg32.hwnd    = WIN_Handle32(msg->hwnd);
 484         msg32.message = msg->message;
 485         msg32.wParam  = msg->wParam;
 486         msg32.lParam  = msg->lParam;
 487         /* MDICLIENTINFO is still the same for win32 and win16 ... */
 488         return TranslateMDISysAccel( WIN_Handle32(hwndClient), &msg32 );
 489     }
 490     return 0;
 491 }