git.oblomov.eu Git - wine/blob - windows/painting.c

   1 /*
   2  * Window painting functions
   3  *
   4  * Copyright 1993, 1994, 1995 Alexandre Julliard
   5  *
   6  * FIXME: Do not repaint full nonclient area all the time. Instead, compute
   7  *        intersection with hrgnUpdate (which should be moved from client to
   8  *        window coords as well, lookup 'the pain' comment in the winpos.c).
   9  */
  10
  11 #include <stdio.h>
  12 #include <X11/Xlib.h>
  13
  14 #include "win.h"
  15 #include "queue.h"
  16 #include "gdi.h"
  17 #include "dce.h"
  18 #include "heap.h"
  19 #include "stddebug.h"
  20 /* #define DEBUG_WIN */
  21 #include "debug.h"
  22
  23   /* Last CTLCOLOR id */
  24 #define CTLCOLOR_MAX   CTLCOLOR_STATIC
  25
  26 /***********************************************************************
  27  *           WIN_UpdateNCArea
  28  *
  29  */
  30 void WIN_UpdateNCArea(WND* wnd, BOOL32 bUpdate)
  31 {
  32     POINT16 pt = {0, 0};
  33     HRGN32 hClip = 1;
  34
  35     dprintf_nonclient(stddeb,"NCUpdate: hwnd %04x, hrgnUpdate %04x\n",
  36                       wnd->hwndSelf, wnd->hrgnUpdate );
  37
  38     /* desktop window doesn't have nonclient area */
  39     if(wnd == WIN_GetDesktop())
  40     {
  41         wnd->flags &= ~WIN_NEEDS_NCPAINT;
  42         return;
  43     }
  44
  45     if( wnd->hrgnUpdate > 1 )
  46     {
  47         ClientToScreen16(wnd->hwndSelf, &pt);
  48
  49         hClip = CreateRectRgn32( 0, 0, 0, 0 );
  50         if (!CombineRgn32( hClip, wnd->hrgnUpdate, 0, RGN_COPY ))
  51         {
  52             DeleteObject32(hClip);
  53             hClip = 1;
  54         }
  55         else
  56             OffsetRgn32( hClip, pt.x, pt.y );
  57
  58         if (bUpdate)
  59         {
  60             /* exclude non-client area from update region */
  61             HRGN32 hrgn = CreateRectRgn32( 0, 0,
  62                                  wnd->rectClient.right - wnd->rectClient.left,
  63                                  wnd->rectClient.bottom - wnd->rectClient.top);
  64
  65             if (hrgn && (CombineRgn32( wnd->hrgnUpdate, wnd->hrgnUpdate,
  66                                        hrgn, RGN_AND) == NULLREGION))
  67             {
  68                 DeleteObject32( wnd->hrgnUpdate );
  69                 wnd->hrgnUpdate = 1;
  70             }
  71
  72             DeleteObject32( hrgn );
  73         }
  74     }
  75
  76     wnd->flags &= ~WIN_NEEDS_NCPAINT;
  77
  78     if ((wnd->hwndSelf == GetActiveWindow32()) &&
  79         !(wnd->flags & WIN_NCACTIVATED))
  80     {
  81         wnd->flags |= WIN_NCACTIVATED;
  82         if( hClip > 1) DeleteObject32( hClip );
  83         hClip = 1;
  84     }
  85
  86     if (hClip) SendMessage16( wnd->hwndSelf, WM_NCPAINT, hClip, 0L );
  87
  88     if (hClip > 1) DeleteObject32( hClip );
  89 }
  90
  91
  92 /***********************************************************************
  93  *           BeginPaint16    (USER.39)
  94  */
  95 HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
  96 {
  97     BOOL32 bIcon;
  98     HRGN32 hrgnUpdate;
  99     WND *wndPtr = WIN_FindWndPtr( hwnd );
 100     if (!wndPtr) return 0;
 101
 102     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 103
 104     wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
 105
 106     if (wndPtr->flags & WIN_NEEDS_NCPAINT) WIN_UpdateNCArea( wndPtr, TRUE );
 107
 108     if (((hrgnUpdate = wndPtr->hrgnUpdate) != 0) ||
 109         (wndPtr->flags & WIN_INTERNAL_PAINT))
 110         QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 111
 112     wndPtr->hrgnUpdate = 0;
 113     wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 114
 115     HideCaret32( hwnd );
 116
 117     dprintf_win(stddeb,"hrgnUpdate = %04x, ", hrgnUpdate);
 118
 119     /* When bIcon is TRUE hrgnUpdate is automatically in window coordinates
 120      * (because rectClient == rectWindow for WS_MINIMIZE windows).
 121      */
 122
 123     if (wndPtr->class->style & CS_PARENTDC)
 124     {
 125         /* Don't clip the output to the update region for CS_PARENTDC window */
 126         if(hrgnUpdate > 1)
 127             DeleteObject32(hrgnUpdate);
 128         lps->hdc = GetDCEx16( hwnd, 0, DCX_WINDOWPAINT | DCX_USESTYLE |
 129                               (bIcon ? DCX_WINDOW : 0) );
 130     }
 131     else
 132     {
 133         lps->hdc = GetDCEx16(hwnd, hrgnUpdate, DCX_INTERSECTRGN |
 134                              DCX_WINDOWPAINT | DCX_USESTYLE |
 135                              (bIcon ? DCX_WINDOW : 0) );
 136     }
 137
 138     dprintf_win(stddeb,"hdc = %04x\n", lps->hdc);
 139
 140     if (!lps->hdc)
 141     {
 142         fprintf(stderr, "GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd);
 143         return 0;
 144     }
 145
 146     GetRgnBox16( InquireVisRgn(lps->hdc), &lps->rcPaint );
 147
 148 dprintf_win(stddeb,"box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top,
 149                     lps->rcPaint.right, lps->rcPaint.bottom );
 150
 151     DPtoLP16( lps->hdc, (LPPOINT16)&lps->rcPaint, 2 );
 152
 153     if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 154     {
 155         wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 156         lps->fErase = !SendMessage16(hwnd, (bIcon) ? WM_ICONERASEBKGND
 157                                                    : WM_ERASEBKGND,
 158                                      (WPARAM16)lps->hdc, 0 );
 159     }
 160     else lps->fErase = TRUE;
 161
 162     return lps->hdc;
 163 }
 164
 165
 166 /***********************************************************************
 167  *           BeginPaint32    (USER32.9)
 168  */
 169 HDC32 WINAPI BeginPaint32( HWND32 hwnd, PAINTSTRUCT32 *lps )
 170 {
 171     PAINTSTRUCT16 ps;
 172
 173     BeginPaint16( hwnd, &ps );
 174     lps->hdc            = (HDC32)ps.hdc;
 175     lps->fErase         = ps.fErase;
 176     lps->rcPaint.top    = ps.rcPaint.top;
 177     lps->rcPaint.left   = ps.rcPaint.left;
 178     lps->rcPaint.right  = ps.rcPaint.right;
 179     lps->rcPaint.bottom = ps.rcPaint.bottom;
 180     lps->fRestore       = ps.fRestore;
 181     lps->fIncUpdate     = ps.fIncUpdate;
 182     return lps->hdc;
 183 }
 184
 185
 186 /***********************************************************************
 187  *           EndPaint16    (USER.40)
 188  */
 189 BOOL16 WINAPI EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps )
 190 {
 191     ReleaseDC16( hwnd, lps->hdc );
 192     ShowCaret32( hwnd );
 193     return TRUE;
 194 }
 195
 196
 197 /***********************************************************************
 198  *           EndPaint32    (USER32.175)
 199  */
 200 BOOL32 WINAPI EndPaint32( HWND32 hwnd, const PAINTSTRUCT32 *lps )
 201 {
 202     ReleaseDC32( hwnd, lps->hdc );
 203     ShowCaret32( hwnd );
 204     return TRUE;
 205 }
 206
 207
 208 /***********************************************************************
 209  *           FillWindow    (USER.324)
 210  */
 211 void WINAPI FillWindow( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush )
 212 {
 213     RECT16 rect;
 214     GetClientRect16( hwnd, &rect );
 215     DPtoLP16( hdc, (LPPOINT16)&rect, 2 );
 216     PaintRect( hwndParent, hwnd, hdc, hbrush, &rect );
 217 }
 218
 219
 220 /***********************************************************************
 221  *           PAINT_GetControlBrush
 222  */
 223 static HBRUSH16 PAINT_GetControlBrush( HWND32 hParent, HWND32 hWnd, HDC16 hDC, UINT16 ctlType )
 224 {
 225     HBRUSH16 bkgBrush = (HBRUSH16)SendMessage32A( hParent, WM_CTLCOLORMSGBOX + ctlType,
 226                                                              (WPARAM32)hDC, (LPARAM)hWnd );
 227     if( !IsGDIObject(bkgBrush) )
 228         bkgBrush = DEFWND_ControlColor( hDC, ctlType );
 229     return bkgBrush;
 230 }
 231
 232
 233 /***********************************************************************
 234  *           PaintRect    (USER.325)
 235  */
 236 void WINAPI PaintRect( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc,
 237                        HBRUSH16 hbrush, const RECT16 *rect)
 238 {
 239     if( hbrush <= CTLCOLOR_MAX )
 240         if( hwndParent )
 241             hbrush = PAINT_GetControlBrush( hwndParent, hwnd, hdc, (UINT16)hbrush );
 242         else
 243             return;
 244     if( hbrush )
 245         FillRect16( hdc, rect, hbrush );
 246 }
 247
 248
 249 /***********************************************************************
 250  *           GetControlBrush    (USER.326)
 251  */
 252 HBRUSH16 WINAPI GetControlBrush( HWND16 hwnd, HDC16 hdc, UINT16 ctlType )
 253 {
 254     WND* wndPtr = WIN_FindWndPtr( hwnd );
 255
 256     if((ctlType <= CTLCOLOR_MAX) && wndPtr )
 257     {
 258         WND* parent;
 259         if( wndPtr->dwStyle & WS_POPUP ) parent = wndPtr->owner;
 260         else parent = wndPtr->parent;
 261         if( !parent ) parent = wndPtr;
 262         return (HBRUSH16)PAINT_GetControlBrush( parent->hwndSelf, hwnd, hdc, ctlType );
 263     }
 264     return (HBRUSH16)0;
 265 }
 266
 267
 268 /***********************************************************************
 269  *           PAINT_RedrawWindow
 270  *
 271  * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask
 272  * SendMessage() calls. This is a comment inside DefWindowProc() source
 273  * from 16-bit SDK:
 274  *
 275  *   This message avoids lots of inter-app message traffic
 276  *   by switching to the other task and continuing the
 277  *   recursion there.
 278  *
 279  * wParam         = flags
 280  * LOWORD(lParam) = hrgnClip
 281  * HIWORD(lParam) = hwndSkip  (not used; always NULL)
 282  *
 283  * All in all, a prime candidate for a rewrite.
 284  */
 285 BOOL32 PAINT_RedrawWindow( HWND32 hwnd, const RECT32 *rectUpdate,
 286                            HRGN32 hrgnUpdate, UINT32 flags, UINT32 control )
 287 {
 288     BOOL32 bIcon;
 289     HRGN32 hrgn;
 290     RECT32 rectClient;
 291     WND* wndPtr;
 292     WND **list, **ppWnd;
 293
 294     if (!hwnd) hwnd = GetDesktopWindow32();
 295     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
 296     if (!WIN_IsWindowDrawable( wndPtr, !(flags & RDW_FRAME) ) )
 297         return TRUE;  /* No redraw needed */
 298
 299     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 300     if (rectUpdate)
 301     {
 302         dprintf_win(stddeb, "RedrawWindow: %04x %d,%d-%d,%d %04x flags=%04x\n",
 303                     hwnd, rectUpdate->left, rectUpdate->top,
 304                     rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags );
 305     }
 306     else
 307     {
 308         dprintf_win(stddeb, "RedrawWindow: %04x NULL %04x flags=%04x\n",
 309                      hwnd, hrgnUpdate, flags);
 310     }
 311
 312     GetClientRect32( hwnd, &rectClient );
 313
 314     if (flags & RDW_INVALIDATE)  /* Invalidate */
 315     {
 316         int rgnNotEmpty = COMPLEXREGION;
 317
 318         if (wndPtr->hrgnUpdate > 1)  /* Is there already an update region? */
 319         {
 320             if ((hrgn = hrgnUpdate) == 0)
 321                 hrgn = CreateRectRgnIndirect32( rectUpdate ? rectUpdate :
 322                                                 &rectClient );
 323             rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 324                                         hrgn, RGN_OR );
 325             if (!hrgnUpdate) DeleteObject32( hrgn );
 326         }
 327         else  /* No update region yet */
 328         {
 329             if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 330                 QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 331             if (hrgnUpdate)
 332             {
 333                 wndPtr->hrgnUpdate = CreateRectRgn32( 0, 0, 0, 0 );
 334                 rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, hrgnUpdate,
 335                                             0, RGN_COPY );
 336             }
 337             else wndPtr->hrgnUpdate = CreateRectRgnIndirect32( rectUpdate ?
 338                                                     rectUpdate : &rectClient );
 339         }
 340
 341         if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT;
 342
 343         /* restrict update region to client area (FIXME: correct?) */
 344         if (wndPtr->hrgnUpdate)
 345         {
 346             HRGN32 clientRgn = CreateRectRgnIndirect32( &rectClient );
 347             rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, clientRgn,
 348                                         wndPtr->hrgnUpdate, RGN_AND );
 349             DeleteObject32( clientRgn );
 350         }
 351
 352         /* check for bogus update region */
 353         if ( rgnNotEmpty == NULLREGION )
 354            {
 355              wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 356              DeleteObject32( wndPtr->hrgnUpdate );
 357              wndPtr->hrgnUpdate=0;
 358              if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 359                    QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 360            }
 361         else
 362              if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
 363         flags |= RDW_FRAME;  /* Force children frame invalidation */
 364     }
 365     else if (flags & RDW_VALIDATE)  /* Validate */
 366     {
 367           /* We need an update region in order to validate anything */
 368         if (wndPtr->hrgnUpdate > 1)
 369         {
 370             if (!hrgnUpdate && !rectUpdate)
 371             {
 372                   /* Special case: validate everything */
 373                 DeleteObject32( wndPtr->hrgnUpdate );
 374                 wndPtr->hrgnUpdate = 0;
 375             }
 376             else
 377             {
 378                 if ((hrgn = hrgnUpdate) == 0)
 379                     hrgn = CreateRectRgnIndirect32( rectUpdate );
 380                 if (CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 381                                   hrgn, RGN_DIFF ) == NULLREGION)
 382                 {
 383                     DeleteObject32( wndPtr->hrgnUpdate );
 384                     wndPtr->hrgnUpdate = 0;
 385                 }
 386                 if (!hrgnUpdate) DeleteObject32( hrgn );
 387             }
 388             if (!wndPtr->hrgnUpdate)  /* No more update region */
 389                 if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 390                     QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 391         }
 392         if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT;
 393         if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 394     }
 395
 396       /* Set/clear internal paint flag */
 397
 398     if (flags & RDW_INTERNALPAINT)
 399     {
 400         if ( wndPtr->hrgnUpdate <= 1 && !(wndPtr->flags & WIN_INTERNAL_PAINT))
 401             QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 402         wndPtr->flags |= WIN_INTERNAL_PAINT;
 403     }
 404     else if (flags & RDW_NOINTERNALPAINT)
 405     {
 406         if ( wndPtr->hrgnUpdate <= 1 && (wndPtr->flags & WIN_INTERNAL_PAINT))
 407             QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 408         wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 409     }
 410
 411       /* Erase/update window */
 412
 413     if (flags & RDW_UPDATENOW)
 414     {
 415         if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */
 416             SendMessage16( hwnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 );
 417     }
 418     else if (flags & RDW_ERASENOW)
 419     {
 420         if (wndPtr->flags & WIN_NEEDS_NCPAINT)
 421             WIN_UpdateNCArea( wndPtr, FALSE);
 422
 423         if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 424         {
 425             HDC32 hdc = GetDCEx32( hwnd, wndPtr->hrgnUpdate,
 426                                    DCX_INTERSECTRGN | DCX_USESTYLE |
 427                                    DCX_KEEPCLIPRGN | DCX_WINDOWPAINT |
 428                                    (bIcon ? DCX_WINDOW : 0) );
 429             if (hdc)
 430             {
 431                if (SendMessage16( hwnd, (bIcon) ? WM_ICONERASEBKGND
 432                                                 : WM_ERASEBKGND,
 433                                   (WPARAM16)hdc, 0 ))
 434                   wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 435                ReleaseDC32( hwnd, hdc );
 436             }
 437         }
 438     }
 439
 440       /* Recursively process children */
 441
 442     if (!(flags & RDW_NOCHILDREN) &&
 443         ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) &&
 444         !(wndPtr->dwStyle & WS_MINIMIZE) )
 445     {
 446         if ( hrgnUpdate || rectUpdate )
 447         {
 448            if (!(hrgn = CreateRectRgn32( 0, 0, 0, 0 ))) return TRUE;
 449            if( !hrgnUpdate )
 450            {
 451                 control |= (RDW_C_DELETEHRGN | RDW_C_USEHRGN);
 452                 if( !(hrgnUpdate = CreateRectRgnIndirect32( rectUpdate )) )
 453                 {
 454                     DeleteObject32( hrgn );
 455                     return TRUE;
 456                 }
 457            }
 458            if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 459            {
 460                 for (ppWnd = list; *ppWnd; ppWnd++)
 461                 {
 462                     wndPtr = *ppWnd;
 463                     if (!IsWindow32(wndPtr->hwndSelf)) continue;
 464                     if (wndPtr->dwStyle & WS_VISIBLE)
 465                     {
 466                         SetRectRgn32( hrgn,
 467                                 wndPtr->rectWindow.left, wndPtr->rectWindow.top,
 468                                 wndPtr->rectWindow.right, wndPtr->rectWindow.bottom );
 469                         if (CombineRgn32( hrgn, hrgn, hrgnUpdate, RGN_AND ))
 470                         {
 471                             OffsetRgn32( hrgn, -wndPtr->rectClient.left,
 472                                         -wndPtr->rectClient.top );
 473                             PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, hrgn, flags,
 474                                          RDW_C_USEHRGN );
 475                         }
 476                     }
 477                 }
 478                 HeapFree( SystemHeap, 0, list );
 479            }
 480            DeleteObject32( hrgn );
 481            if (control & RDW_C_DELETEHRGN) DeleteObject32( hrgnUpdate );
 482         }
 483         else
 484         {
 485             if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 486             {
 487                 for (ppWnd = list; *ppWnd; ppWnd++)
 488                 {
 489                     wndPtr = *ppWnd;
 490                     if (IsWindow32( wndPtr->hwndSelf ))
 491                         PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags, 0 );
 492                 }
 493                 HeapFree( SystemHeap, 0, list );
 494             }
 495         }
 496
 497     }
 498     return TRUE;
 499 }
 500
 501
 502 /***********************************************************************
 503  *           RedrawWindow32    (USER32.425)
 504  */
 505 BOOL32 WINAPI RedrawWindow32( HWND32 hwnd, const RECT32 *rectUpdate,
 506                               HRGN32 hrgnUpdate, UINT32 flags )
 507 {
 508     return PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 );
 509 }
 510
 511
 512 /***********************************************************************
 513  *           RedrawWindow16    (USER.290)
 514  */
 515 BOOL16 WINAPI RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate,
 516                               HRGN16 hrgnUpdate, UINT16 flags )
 517 {
 518     if (rectUpdate)
 519     {
 520         RECT32 r;
 521         CONV_RECT16TO32( rectUpdate, &r );
 522         return (BOOL16)RedrawWindow32( (HWND32)hwnd, &r, hrgnUpdate, flags );
 523     }
 524     return (BOOL16)PAINT_RedrawWindow( (HWND32)hwnd, NULL,
 525                                        (HRGN32)hrgnUpdate, flags, 0 );
 526 }
 527
 528
 529 /***********************************************************************
 530  *           UpdateWindow16   (USER.124)
 531  */
 532 void WINAPI UpdateWindow16( HWND16 hwnd )
 533 {
 534     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 535 }
 536
 537 /***********************************************************************
 538  *           UpdateWindow32   (USER32.566)
 539  */
 540 void WINAPI UpdateWindow32( HWND32 hwnd )
 541 {
 542     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 543 }
 544
 545 /***********************************************************************
 546  *           InvalidateRgn16   (USER.126)
 547  */
 548 void WINAPI InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 549 {
 550     PAINT_RedrawWindow((HWND32)hwnd, NULL, (HRGN32)hrgn,
 551                        RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 552 }
 553
 554
 555 /***********************************************************************
 556  *           InvalidateRgn32   (USER32.328)
 557  */
 558 void WINAPI InvalidateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 559 {
 560     PAINT_RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 561 }
 562
 563
 564 /***********************************************************************
 565  *           InvalidateRect16   (USER.125)
 566  */
 567 void WINAPI InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase )
 568 {
 569     RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
 570 }
 571
 572
 573 /***********************************************************************
 574  *           InvalidateRect32   (USER32.327)
 575  */
 576 void WINAPI InvalidateRect32( HWND32 hwnd, const RECT32 *rect, BOOL32 erase )
 577 {
 578     PAINT_RedrawWindow( hwnd, rect, 0,
 579                         RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 580 }
 581
 582
 583 /***********************************************************************
 584  *           ValidateRgn16   (USER.128)
 585  */
 586 void WINAPI ValidateRgn16( HWND16 hwnd, HRGN16 hrgn )
 587 {
 588     PAINT_RedrawWindow( (HWND32)hwnd, NULL, (HRGN32)hrgn,
 589                         RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 590 }
 591
 592
 593 /***********************************************************************
 594  *           ValidateRgn32   (USER32.571)
 595  */
 596 void WINAPI ValidateRgn32( HWND32 hwnd, HRGN32 hrgn )
 597 {
 598     PAINT_RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 599 }
 600
 601
 602 /***********************************************************************
 603  *           ValidateRect16   (USER.127)
 604  */
 605 void WINAPI ValidateRect16( HWND16 hwnd, const RECT16 *rect )
 606 {
 607     RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN );
 608 }
 609
 610
 611 /***********************************************************************
 612  *           ValidateRect32   (USER32.570)
 613  */
 614 void WINAPI ValidateRect32( HWND32 hwnd, const RECT32 *rect )
 615 {
 616     PAINT_RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 617 }
 618
 619
 620 /***********************************************************************
 621  *           GetUpdateRect16   (USER.190)
 622  */
 623 BOOL16 WINAPI GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase )
 624 {
 625     RECT32 r;
 626     BOOL16 ret;
 627
 628     if (!rect) return GetUpdateRect32( hwnd, NULL, erase );
 629     ret = GetUpdateRect32( hwnd, &r, erase );
 630     CONV_RECT32TO16( &r, rect );
 631     return ret;
 632 }
 633
 634
 635 /***********************************************************************
 636  *           GetUpdateRect32   (USER32.296)
 637  */
 638 BOOL32 WINAPI GetUpdateRect32( HWND32 hwnd, LPRECT32 rect, BOOL32 erase )
 639 {
 640     WND * wndPtr = WIN_FindWndPtr( hwnd );
 641     if (!wndPtr) return FALSE;
 642
 643     if (rect)
 644     {
 645         if (wndPtr->hrgnUpdate > 1)
 646         {
 647             HRGN32 hrgn = CreateRectRgn32( 0, 0, 0, 0 );
 648             if (GetUpdateRgn32( hwnd, hrgn, erase ) == ERROR) return FALSE;
 649             GetRgnBox32( hrgn, rect );
 650             DeleteObject32( hrgn );
 651         }
 652         else SetRectEmpty32( rect );
 653     }
 654     return (wndPtr->hrgnUpdate > 1);
 655 }
 656
 657
 658 /***********************************************************************
 659  *           GetUpdateRgn16   (USER.237)
 660  */
 661 INT16 WINAPI GetUpdateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 662 {
 663     return GetUpdateRgn32( hwnd, hrgn, erase );
 664 }
 665
 666
 667 /***********************************************************************
 668  *           GetUpdateRgn32   (USER32.297)
 669  */
 670 INT32 WINAPI GetUpdateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 671 {
 672     INT32 retval;
 673     WND * wndPtr = WIN_FindWndPtr( hwnd );
 674     if (!wndPtr) return ERROR;
 675
 676     if (wndPtr->hrgnUpdate <= 1)
 677     {
 678         SetRectRgn32( hrgn, 0, 0, 0, 0 );
 679         return NULLREGION;
 680     }
 681     retval = CombineRgn32( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY );
 682     if (erase) RedrawWindow32( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN );
 683     return retval;
 684 }
 685
 686
 687 /***********************************************************************
 688  *           ExcludeUpdateRgn16   (USER.238)
 689  */
 690 INT16 WINAPI ExcludeUpdateRgn16( HDC16 hdc, HWND16 hwnd )
 691 {
 692     return ExcludeUpdateRgn32( hdc, hwnd );
 693 }
 694
 695
 696 /***********************************************************************
 697  *           ExcludeUpdateRgn32   (USER32.194)
 698  */
 699 INT32 WINAPI ExcludeUpdateRgn32( HDC32 hdc, HWND32 hwnd )
 700 {
 701     RECT32 rect;
 702     WND * wndPtr;
 703
 704     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR;
 705
 706     if (wndPtr->hrgnUpdate)
 707     {
 708         INT32 ret;
 709         HRGN32 hrgn = CreateRectRgn32(wndPtr->rectWindow.left - wndPtr->rectClient.left,
 710                                       wndPtr->rectWindow.top - wndPtr->rectClient.top,
 711                                       wndPtr->rectClient.right - wndPtr->rectClient.left,
 712                                       wndPtr->rectClient.bottom - wndPtr->rectClient.top);
 713         if( wndPtr->hrgnUpdate > 1 )
 714             CombineRgn32(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY);
 715
 716         /* do ugly coordinate translations in dce.c */
 717
 718         ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn );
 719         DeleteObject32( hrgn );
 720         return ret;
 721     }
 722     return GetClipBox32( hdc, &rect );
 723 }
 724
 725