dlls/user/msg16.c

   1 /*
   2  * 16-bit messaging support
   3  *
   4  * Copyright 2001 Alexandre Julliard
   5  */
   6
   7 #include "wine/winuser16.h"
   8 #include "heap.h"
   9 #include "hook.h"
  10 #include "message.h"
  11 #include "spy.h"
  12 #include "task.h"
  13 #include "thread.h"
  14 #include "win.h"
  15 #include "debugtools.h"
  16
  17 DEFAULT_DEBUG_CHANNEL(msg);
  18
  19
  20 /***********************************************************************
  21  *              SendMessage  (USER.111)
  22  */
  23 LRESULT WINAPI SendMessage16( HWND16 hwnd, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
  24 {
  25     LRESULT result;
  26
  27     if (hwnd != HWND_BROADCAST &&
  28         GetWindowThreadProcessId( hwnd, NULL ) == GetCurrentThreadId())
  29     {
  30         /* call 16-bit window proc directly */
  31         WNDPROC16 winproc;
  32
  33         /* first the WH_CALLWNDPROC hook */
  34         if (HOOK_IsHooked( WH_CALLWNDPROC ))
  35         {
  36             CWPSTRUCT16 *cwp;
  37
  38             if ((cwp = SEGPTR_NEW(CWPSTRUCT16)))
  39             {
  40                 cwp->hwnd    = hwnd;
  41                 cwp->message = msg;
  42                 cwp->wParam  = wparam;
  43                 cwp->lParam  = lparam;
  44                 HOOK_CallHooks16( WH_CALLWNDPROC, HC_ACTION, 1, SEGPTR_GET(cwp) );
  45                 hwnd   = cwp->hwnd;
  46                 msg    = cwp->message;
  47                 wparam = cwp->wParam;
  48                 lparam = cwp->lParam;
  49                 SEGPTR_FREE( cwp );
  50             }
  51         }
  52
  53         if (!(winproc = (WNDPROC16)GetWindowLong16( hwnd, GWL_WNDPROC ))) return 0;
  54
  55         SPY_EnterMessage( SPY_SENDMESSAGE16, hwnd, msg, wparam, lparam );
  56         result = CallWindowProc16( (WNDPROC16)winproc, hwnd, msg, wparam, lparam );
  57         SPY_ExitMessage( SPY_RESULT_OK16, hwnd, msg, result, wparam, lparam );
  58     }
  59     else  /* map to 32-bit unicode for inter-thread/process message */
  60     {
  61         UINT msg32;
  62         WPARAM wparam32;
  63
  64         if (WINPROC_MapMsg16To32W( hwnd, msg, wparam, &msg32, &wparam32, &lparam ) == -1)
  65             return 0;
  66         result = WINPROC_UnmapMsg16To32W( hwnd, msg32, wparam32, lparam,
  67                                           SendMessageW( hwnd, msg32, wparam32, lparam ) );
  68     }
  69     return result;
  70 }
  71
  72
  73 /***********************************************************************
  74  *              PostMessage  (USER.110)
  75  */
  76 BOOL16 WINAPI PostMessage16( HWND16 hwnd, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
  77 {
  78     WPARAM wparam32;
  79     UINT msg32;
  80
  81     switch (WINPROC_MapMsg16To32W( hwnd, msg, wparam, &msg32, &wparam32, &lparam ))
  82     {
  83     case 0:
  84         return PostMessageW( hwnd, msg32, wparam32, lparam );
  85     case 1:
  86         ERR( "16-bit message %x contains pointer, cannot post\n", msg );
  87         return FALSE;
  88     default:
  89         return FALSE;
  90     }
  91 }
  92
  93
  94 /***********************************************************************
  95  *              PostAppMessage (USER.116)
  96  *              PostAppMessage16 (USER32.@)
  97  */
  98 BOOL16 WINAPI PostAppMessage16( HTASK16 hTask, UINT16 msg, WPARAM16 wparam, LPARAM lparam )
  99 {
 100     WPARAM wparam32;
 101     UINT msg32;
 102     TDB *pTask = TASK_GetPtr( hTask );
 103     if (!pTask) return FALSE;
 104
 105     switch (WINPROC_MapMsg16To32W( 0, msg, wparam, &msg32, &wparam32, &lparam ))
 106     {
 107     case 0:
 108         return PostThreadMessageW( (DWORD)pTask->teb->tid, msg32, wparam32, lparam );
 109     case 1:
 110         ERR( "16-bit message %x contains pointer, cannot post\n", msg );
 111         return FALSE;
 112     default:
 113         return FALSE;
 114     }
 115 }
 116
 117
 118 /***********************************************************************
 119  *              InSendMessage  (USER.192)
 120  */
 121 BOOL16 WINAPI InSendMessage16(void)
 122 {
 123     return InSendMessage();
 124 }
 125
 126
 127 /***********************************************************************
 128  *              ReplyMessage  (USER.115)
 129  */
 130 void WINAPI ReplyMessage16( LRESULT result )
 131 {
 132     ReplyMessage( result );
 133 }
 134
 135
 136 /***********************************************************************
 137  *              PeekMessage32 (USER.819)
 138  */
 139 BOOL16 WINAPI PeekMessage32_16( MSG32_16 *msg16, HWND16 hwnd,
 140                                 UINT16 first, UINT16 last, UINT16 flags,
 141                                 BOOL16 wHaveParamHigh )
 142 {
 143     MSG msg;
 144
 145     if (!PeekMessageW( &msg, hwnd, first, last, flags )) return FALSE;
 146
 147     msg16->msg.hwnd    = msg.hwnd;
 148     msg16->msg.lParam  = msg.lParam;
 149     msg16->msg.time    = msg.time;
 150     msg16->msg.pt.x    = (INT16)msg.pt.x;
 151     msg16->msg.pt.y    = (INT16)msg.pt.y;
 152     if (wHaveParamHigh) msg16->wParamHigh = HIWORD(msg.wParam);
 153
 154     return (WINPROC_MapMsg32WTo16( msg.hwnd, msg.message, msg.wParam,
 155                                    &msg16->msg.message, &msg16->msg.wParam,
 156                                    &msg16->msg.lParam ) != -1);
 157 }
 158
 159
 160 /***********************************************************************
 161  *              PeekMessage  (USER.109)
 162  */
 163 BOOL16 WINAPI PeekMessage16( MSG16 *msg, HWND16 hwnd,
 164                              UINT16 first, UINT16 last, UINT16 flags )
 165 {
 166     return PeekMessage32_16( (MSG32_16 *)msg, hwnd, first, last, flags, FALSE );
 167 }
 168
 169
 170 /***********************************************************************
 171  *              GetMessage32  (USER.820)
 172  */
 173 BOOL16 WINAPI GetMessage32_16( MSG32_16 *msg16, HWND16 hwnd, UINT16 first,
 174                                UINT16 last, BOOL16 wHaveParamHigh )
 175 {
 176     MSG msg;
 177
 178     do
 179     {
 180         GetMessageW( &msg, hwnd, first, last );
 181         msg16->msg.hwnd    = msg.hwnd;
 182         msg16->msg.lParam  = msg.lParam;
 183         msg16->msg.time    = msg.time;
 184         msg16->msg.pt.x    = (INT16)msg.pt.x;
 185         msg16->msg.pt.y    = (INT16)msg.pt.y;
 186         if (wHaveParamHigh) msg16->wParamHigh = HIWORD(msg.wParam);
 187     }
 188     while (WINPROC_MapMsg32WTo16( msg.hwnd, msg.message, msg.wParam,
 189                                   &msg16->msg.message, &msg16->msg.wParam,
 190                                   &msg16->msg.lParam ) == -1);
 191
 192     TRACE( "message %04x, hwnd %04x, filter(%04x - %04x)\n",
 193            msg16->msg.message, hwnd, first, last );
 194
 195     return msg16->msg.message != WM_QUIT;
 196 }
 197
 198
 199 /***********************************************************************
 200  *              GetMessage  (USER.108)
 201  */
 202 BOOL16 WINAPI GetMessage16( MSG16 *msg, HWND16 hwnd, UINT16 first, UINT16 last )
 203 {
 204     return GetMessage32_16( (MSG32_16 *)msg, hwnd, first, last, FALSE );
 205 }
 206
 207
 208 /***********************************************************************
 209  *              TranslateMessage32 (USER.821)
 210  */
 211 BOOL16 WINAPI TranslateMessage32_16( const MSG32_16 *msg, BOOL16 wHaveParamHigh )
 212 {
 213     MSG msg32;
 214
 215     msg32.hwnd    = msg->msg.hwnd;
 216     msg32.message = msg->msg.message;
 217     msg32.wParam  = MAKEWPARAM( msg->msg.wParam, wHaveParamHigh ? msg->wParamHigh : 0 );
 218     msg32.lParam  = msg->msg.lParam;
 219     return TranslateMessage( &msg32 );
 220 }
 221
 222
 223 /***********************************************************************
 224  *              TranslateMessage (USER.113)
 225  */
 226 BOOL16 WINAPI TranslateMessage16( const MSG16 *msg )
 227 {
 228     return TranslateMessage32_16( (MSG32_16 *)msg, FALSE );
 229 }
 230
 231
 232 /***********************************************************************
 233  *              DispatchMessage (USER.114)
 234  */
 235 LONG WINAPI DispatchMessage16( const MSG16* msg )
 236 {
 237     WND * wndPtr;
 238     WNDPROC16 winproc;
 239     LONG retval;
 240     int painting;
 241
 242       /* Process timer messages */
 243     if ((msg->message == WM_TIMER) || (msg->message == WM_SYSTIMER))
 244     {
 245         if (msg->lParam)
 246         {
 247             /* before calling window proc, verify whether timer is still valid;
 248                there's a slim chance that the application kills the timer
 249                between GetMessage and DispatchMessage API calls */
 250             if (!TIMER_IsTimerValid(msg->hwnd, (UINT) msg->wParam, (HWINDOWPROC) msg->lParam))
 251                 return 0; /* invalid winproc */
 252
 253             return CallWindowProc16( (WNDPROC16)msg->lParam, msg->hwnd,
 254                                      msg->message, msg->wParam, GetTickCount() );
 255         }
 256     }
 257
 258     if (!(wndPtr = WIN_FindWndPtr( msg->hwnd ))) return 0;
 259     if (!wndPtr->winproc)
 260     {
 261         WIN_ReleaseWndPtr( wndPtr );
 262         return 0;
 263     }
 264     winproc = (WNDPROC16)wndPtr->winproc;
 265     painting = (msg->message == WM_PAINT);
 266     if (painting) wndPtr->flags |= WIN_NEEDS_BEGINPAINT;
 267     WIN_ReleaseWndPtr( wndPtr );
 268
 269     SPY_EnterMessage( SPY_DISPATCHMESSAGE16, msg->hwnd, msg->message, msg->wParam, msg->lParam );
 270     retval = CallWindowProc16( winproc, msg->hwnd, msg->message, msg->wParam, msg->lParam );
 271     SPY_ExitMessage( SPY_RESULT_OK16, msg->hwnd, msg->message, retval, msg->wParam, msg->lParam );
 272
 273     if (!painting) return retval;
 274
 275     if ((wndPtr = WIN_FindWndPtr( msg->hwnd )))
 276     {
 277         if ((wndPtr->flags & WIN_NEEDS_BEGINPAINT) && wndPtr->hrgnUpdate)
 278         {
 279             ERR( "BeginPaint not called on WM_PAINT for hwnd %04x!\n", msg->hwnd );
 280             wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
 281             /* Validate the update region to avoid infinite WM_PAINT loop */
 282             RedrawWindow( wndPtr->hwndSelf, NULL, 0,
 283                           RDW_NOFRAME | RDW_VALIDATE | RDW_NOCHILDREN | RDW_NOINTERNALPAINT );
 284         }
 285         WIN_ReleaseWndPtr( wndPtr );
 286     }
 287     return retval;
 288 }
 289
 290
 291 /***********************************************************************
 292  *              DispatchMessage32 (USER.822)
 293  */
 294 LONG WINAPI DispatchMessage32_16( const MSG32_16 *msg16, BOOL16 wHaveParamHigh )
 295 {
 296     if (wHaveParamHigh == FALSE)
 297         return DispatchMessage16( &msg16->msg );
 298     else
 299     {
 300         MSG msg;
 301
 302         msg.hwnd    = msg16->msg.hwnd;
 303         msg.message = msg16->msg.message;
 304         msg.wParam  = MAKEWPARAM( msg16->msg.wParam, msg16->wParamHigh );
 305         msg.lParam  = msg16->msg.lParam;
 306         msg.time    = msg16->msg.time;
 307         msg.pt.x    = msg16->msg.pt.x;
 308         msg.pt.y    = msg16->msg.pt.y;
 309         return DispatchMessageA( &msg );
 310     }
 311 }
 312
 313
 314 /***********************************************************************
 315  *              MsgWaitForMultipleObjects  (USER.640)
 316  */
 317 DWORD WINAPI MsgWaitForMultipleObjects16( DWORD count, CONST HANDLE *handles,
 318                                           BOOL wait_all, DWORD timeout, DWORD mask )
 319 {
 320     return MsgWaitForMultipleObjectsEx( count, handles, timeout, mask,
 321                                         wait_all ? MWMO_WAITALL : 0 );
 322 }
 323
 324
 325 /**********************************************************************
 326  *              SetDoubleClickTime (USER.20)
 327  */
 328 void WINAPI SetDoubleClickTime16( UINT16 interval )
 329 {
 330     SetDoubleClickTime( interval );
 331 }
 332
 333
 334 /**********************************************************************
 335  *              GetDoubleClickTime (USER.21)
 336  */
 337 UINT16 WINAPI GetDoubleClickTime16(void)
 338 {
 339     return GetDoubleClickTime();
 340 }
 341
 342
 343 /***********************************************************************
 344  *              PostQuitMessage (USER.6)
 345  */
 346 void WINAPI PostQuitMessage16( INT16 exitCode )
 347 {
 348     PostQuitMessage( exitCode );
 349 }
 350
 351
 352 /***********************************************************************
 353  *              SetMessageQueue (USER.266)
 354  */
 355 BOOL16 WINAPI SetMessageQueue16( INT16 size )
 356 {
 357     return SetMessageQueue( size );
 358 }
 359
 360
 361 /***********************************************************************
 362  *              GetQueueStatus (USER.334)
 363  */
 364 DWORD WINAPI GetQueueStatus16( UINT16 flags )
 365 {
 366     return GetQueueStatus( flags );
 367 }
 368
 369
 370 /***********************************************************************
 371  *              GetInputState (USER.335)
 372  */
 373 BOOL16 WINAPI GetInputState16(void)
 374 {
 375     return GetInputState();
 376 }