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 "win.h"
  12 #include "queue.h"
  13 #include "gdi.h"
  14 #include "dce.h"
  15 #include "heap.h"
  16 #include "debug.h"
  17
  18   /* Last CTLCOLOR id */
  19 #define CTLCOLOR_MAX   CTLCOLOR_STATIC
  20
  21 /***********************************************************************
  22  *           WIN_UpdateNCArea
  23  *
  24  */
  25 void WIN_UpdateNCArea(WND* wnd, BOOL32 bUpdate)
  26 {
  27     POINT16 pt = {0, 0};
  28     HRGN32 hClip = 1;
  29
  30     TRACE(nonclient,"hwnd %04x, hrgnUpdate %04x\n",
  31                       wnd->hwndSelf, wnd->hrgnUpdate );
  32
  33     /* desktop window doesn't have nonclient area */
  34     if(wnd == WIN_GetDesktop())
  35     {
  36         wnd->flags &= ~WIN_NEEDS_NCPAINT;
  37         return;
  38     }
  39
  40     if( wnd->hrgnUpdate > 1 )
  41     {
  42         ClientToScreen16(wnd->hwndSelf, &pt);
  43
  44         hClip = CreateRectRgn32( 0, 0, 0, 0 );
  45         if (!CombineRgn32( hClip, wnd->hrgnUpdate, 0, RGN_COPY ))
  46         {
  47             DeleteObject32(hClip);
  48             hClip = 1;
  49         }
  50         else
  51             OffsetRgn32( hClip, pt.x, pt.y );
  52
  53         if (bUpdate)
  54         {
  55             /* exclude non-client area from update region */
  56             HRGN32 hrgn = CreateRectRgn32( 0, 0,
  57                                  wnd->rectClient.right - wnd->rectClient.left,
  58                                  wnd->rectClient.bottom - wnd->rectClient.top);
  59
  60             if (hrgn && (CombineRgn32( wnd->hrgnUpdate, wnd->hrgnUpdate,
  61                                        hrgn, RGN_AND) == NULLREGION))
  62             {
  63                 DeleteObject32( wnd->hrgnUpdate );
  64                 wnd->hrgnUpdate = 1;
  65             }
  66
  67             DeleteObject32( hrgn );
  68         }
  69     }
  70
  71     wnd->flags &= ~WIN_NEEDS_NCPAINT;
  72
  73     if ((wnd->hwndSelf == GetActiveWindow32()) &&
  74         !(wnd->flags & WIN_NCACTIVATED))
  75     {
  76         wnd->flags |= WIN_NCACTIVATED;
  77         if( hClip > 1) DeleteObject32( hClip );
  78         hClip = 1;
  79     }
  80
  81     if (hClip) SendMessage16( wnd->hwndSelf, WM_NCPAINT, hClip, 0L );
  82
  83     if (hClip > 1) DeleteObject32( hClip );
  84 }
  85
  86
  87 /***********************************************************************
  88  *           BeginPaint16    (USER.39)
  89  */
  90 HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
  91 {
  92     BOOL32 bIcon;
  93     HRGN32 hrgnUpdate;
  94     WND *wndPtr = WIN_FindWndPtr( hwnd );
  95     if (!wndPtr) return 0;
  96
  97     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
  98
  99     wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
 100
 101     if (wndPtr->flags & WIN_NEEDS_NCPAINT) WIN_UpdateNCArea( wndPtr, TRUE );
 102
 103     if (((hrgnUpdate = wndPtr->hrgnUpdate) != 0) ||
 104         (wndPtr->flags & WIN_INTERNAL_PAINT))
 105         QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 106
 107     wndPtr->hrgnUpdate = 0;
 108     wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 109
 110     HideCaret32( hwnd );
 111
 112     TRACE(win,"hrgnUpdate = %04x, \n", hrgnUpdate);
 113
 114     /* When bIcon is TRUE hrgnUpdate is automatically in window coordinates
 115      * (because rectClient == rectWindow for WS_MINIMIZE windows).
 116      */
 117
 118     if (wndPtr->class->style & CS_PARENTDC)
 119     {
 120         /* Don't clip the output to the update region for CS_PARENTDC window */
 121         if(hrgnUpdate > 1)
 122             DeleteObject32(hrgnUpdate);
 123         lps->hdc = GetDCEx16( hwnd, 0, DCX_WINDOWPAINT | DCX_USESTYLE |
 124                               (bIcon ? DCX_WINDOW : 0) );
 125     }
 126     else
 127     {
 128         lps->hdc = GetDCEx16(hwnd, hrgnUpdate, DCX_INTERSECTRGN |
 129                              DCX_WINDOWPAINT | DCX_USESTYLE |
 130                              (bIcon ? DCX_WINDOW : 0) );
 131     }
 132
 133     TRACE(win,"hdc = %04x\n", lps->hdc);
 134
 135     if (!lps->hdc)
 136     {
 137         WARN(win, "GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd);
 138         return 0;
 139     }
 140
 141     GetClipBox16( lps->hdc, &lps->rcPaint );
 142
 143 TRACE(win,"box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top,
 144                     lps->rcPaint.right, lps->rcPaint.bottom );
 145
 146     if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 147     {
 148         wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 149         lps->fErase = !SendMessage16(hwnd, (bIcon) ? WM_ICONERASEBKGND
 150                                                    : WM_ERASEBKGND,
 151                                      (WPARAM16)lps->hdc, 0 );
 152     }
 153     else lps->fErase = TRUE;
 154
 155     return lps->hdc;
 156 }
 157
 158
 159 /***********************************************************************
 160  *           BeginPaint32    (USER32.10)
 161  */
 162 HDC32 WINAPI BeginPaint32( HWND32 hwnd, PAINTSTRUCT32 *lps )
 163 {
 164     PAINTSTRUCT16 ps;
 165
 166     BeginPaint16( hwnd, &ps );
 167     lps->hdc            = (HDC32)ps.hdc;
 168     lps->fErase         = ps.fErase;
 169     lps->rcPaint.top    = ps.rcPaint.top;
 170     lps->rcPaint.left   = ps.rcPaint.left;
 171     lps->rcPaint.right  = ps.rcPaint.right;
 172     lps->rcPaint.bottom = ps.rcPaint.bottom;
 173     lps->fRestore       = ps.fRestore;
 174     lps->fIncUpdate     = ps.fIncUpdate;
 175     return lps->hdc;
 176 }
 177
 178
 179 /***********************************************************************
 180  *           EndPaint16    (USER.40)
 181  */
 182 BOOL16 WINAPI EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps )
 183 {
 184     ReleaseDC16( hwnd, lps->hdc );
 185     ShowCaret32( hwnd );
 186     return TRUE;
 187 }
 188
 189
 190 /***********************************************************************
 191  *           EndPaint32    (USER32.176)
 192  */
 193 BOOL32 WINAPI EndPaint32( HWND32 hwnd, const PAINTSTRUCT32 *lps )
 194 {
 195     ReleaseDC32( hwnd, lps->hdc );
 196     ShowCaret32( hwnd );
 197     return TRUE;
 198 }
 199
 200
 201 /***********************************************************************
 202  *           FillWindow    (USER.324)
 203  */
 204 void WINAPI FillWindow( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush )
 205 {
 206     RECT16 rect;
 207     GetClientRect16( hwnd, &rect );
 208     DPtoLP16( hdc, (LPPOINT16)&rect, 2 );
 209     PaintRect( hwndParent, hwnd, hdc, hbrush, &rect );
 210 }
 211
 212
 213 /***********************************************************************
 214  *           PAINT_GetControlBrush
 215  */
 216 static HBRUSH16 PAINT_GetControlBrush( HWND32 hParent, HWND32 hWnd, HDC16 hDC, UINT16 ctlType )
 217 {
 218     HBRUSH16 bkgBrush = (HBRUSH16)SendMessage32A( hParent, WM_CTLCOLORMSGBOX + ctlType,
 219                                                              (WPARAM32)hDC, (LPARAM)hWnd );
 220     if( !IsGDIObject(bkgBrush) )
 221         bkgBrush = DEFWND_ControlColor( hDC, ctlType );
 222     return bkgBrush;
 223 }
 224
 225
 226 /***********************************************************************
 227  *           PaintRect    (USER.325)
 228  */
 229 void WINAPI PaintRect( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc,
 230                        HBRUSH16 hbrush, const RECT16 *rect)
 231 {
 232     if( hbrush <= CTLCOLOR_MAX )
 233     {
 234         if( hwndParent )
 235             hbrush = PAINT_GetControlBrush( hwndParent, hwnd, hdc, (UINT16)hbrush );
 236         else
 237             return;
 238     }
 239     if( hbrush )
 240         FillRect16( hdc, rect, hbrush );
 241 }
 242
 243
 244 /***********************************************************************
 245  *           GetControlBrush    (USER.326)
 246  */
 247 HBRUSH16 WINAPI GetControlBrush( HWND16 hwnd, HDC16 hdc, UINT16 ctlType )
 248 {
 249     WND* wndPtr = WIN_FindWndPtr( hwnd );
 250
 251     if((ctlType <= CTLCOLOR_MAX) && wndPtr )
 252     {
 253         WND* parent;
 254         if( wndPtr->dwStyle & WS_POPUP ) parent = wndPtr->owner;
 255         else parent = wndPtr->parent;
 256         if( !parent ) parent = wndPtr;
 257         return (HBRUSH16)PAINT_GetControlBrush( parent->hwndSelf, hwnd, hdc, ctlType );
 258     }
 259     return (HBRUSH16)0;
 260 }
 261
 262
 263 /***********************************************************************
 264  *           PAINT_RedrawWindow
 265  *
 266  * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask
 267  * SendMessage() calls. This is a comment inside DefWindowProc() source
 268  * from 16-bit SDK:
 269  *
 270  *   This message avoids lots of inter-app message traffic
 271  *   by switching to the other task and continuing the
 272  *   recursion there.
 273  *
 274  * wParam         = flags
 275  * LOWORD(lParam) = hrgnClip
 276  * HIWORD(lParam) = hwndSkip  (not used; always NULL)
 277  *
 278  * All in all, a prime candidate for a rewrite.
 279  */
 280 BOOL32 PAINT_RedrawWindow( HWND32 hwnd, const RECT32 *rectUpdate,
 281                            HRGN32 hrgnUpdate, UINT32 flags, UINT32 control )
 282 {
 283     BOOL32 bIcon;
 284     HRGN32 hrgn;
 285     RECT32 rectClient;
 286     WND* wndPtr;
 287     WND **list, **ppWnd;
 288
 289     if (!hwnd) hwnd = GetDesktopWindow32();
 290     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
 291     if (!WIN_IsWindowDrawable( wndPtr, !(flags & RDW_FRAME) ) )
 292         return TRUE;  /* No redraw needed */
 293
 294     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 295     if (rectUpdate)
 296     {
 297         TRACE(win, "%04x %d,%d-%d,%d %04x flags=%04x\n",
 298                     hwnd, rectUpdate->left, rectUpdate->top,
 299                     rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags );
 300     }
 301     else
 302     {
 303         TRACE(win, "%04x NULL %04x flags=%04x\n", hwnd, hrgnUpdate, flags);
 304     }
 305
 306     GetClientRect32( hwnd, &rectClient );
 307
 308     if (flags & RDW_INVALIDATE)  /* Invalidate */
 309     {
 310         int rgnNotEmpty = COMPLEXREGION;
 311
 312         if (wndPtr->hrgnUpdate > 1)  /* Is there already an update region? */
 313         {
 314             if ((hrgn = hrgnUpdate) == 0)
 315                 hrgn = CreateRectRgnIndirect32( rectUpdate ? rectUpdate :
 316                                                 &rectClient );
 317             rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 318                                         hrgn, RGN_OR );
 319             if (!hrgnUpdate) DeleteObject32( hrgn );
 320         }
 321         else  /* No update region yet */
 322         {
 323             if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 324                 QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 325             if (hrgnUpdate)
 326             {
 327                 wndPtr->hrgnUpdate = CreateRectRgn32( 0, 0, 0, 0 );
 328                 rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, hrgnUpdate,
 329                                             0, RGN_COPY );
 330             }
 331             else wndPtr->hrgnUpdate = CreateRectRgnIndirect32( rectUpdate ?
 332                                                     rectUpdate : &rectClient );
 333         }
 334
 335         if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT;
 336
 337         /* restrict update region to client area (FIXME: correct?) */
 338         if (wndPtr->hrgnUpdate)
 339         {
 340             HRGN32 clientRgn = CreateRectRgnIndirect32( &rectClient );
 341             rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, clientRgn,
 342                                         wndPtr->hrgnUpdate, RGN_AND );
 343             DeleteObject32( clientRgn );
 344         }
 345
 346         /* check for bogus update region */
 347         if ( rgnNotEmpty == NULLREGION )
 348            {
 349              wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 350              DeleteObject32( wndPtr->hrgnUpdate );
 351              wndPtr->hrgnUpdate=0;
 352              if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 353                    QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 354            }
 355         else
 356              if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
 357         flags |= RDW_FRAME;  /* Force children frame invalidation */
 358     }
 359     else if (flags & RDW_VALIDATE)  /* Validate */
 360     {
 361           /* We need an update region in order to validate anything */
 362         if (wndPtr->hrgnUpdate > 1)
 363         {
 364             if (!hrgnUpdate && !rectUpdate)
 365             {
 366                   /* Special case: validate everything */
 367                 DeleteObject32( wndPtr->hrgnUpdate );
 368                 wndPtr->hrgnUpdate = 0;
 369             }
 370             else
 371             {
 372                 if ((hrgn = hrgnUpdate) == 0)
 373                     hrgn = CreateRectRgnIndirect32( rectUpdate );
 374                 if (CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 375                                   hrgn, RGN_DIFF ) == NULLREGION)
 376                 {
 377                     DeleteObject32( wndPtr->hrgnUpdate );
 378                     wndPtr->hrgnUpdate = 0;
 379                 }
 380                 if (!hrgnUpdate) DeleteObject32( hrgn );
 381             }
 382             if (!wndPtr->hrgnUpdate)  /* No more update region */
 383                 if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 384                     QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 385         }
 386         if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT;
 387         if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 388     }
 389
 390       /* Set/clear internal paint flag */
 391
 392     if (flags & RDW_INTERNALPAINT)
 393     {
 394         if ( wndPtr->hrgnUpdate <= 1 && !(wndPtr->flags & WIN_INTERNAL_PAINT))
 395             QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 396         wndPtr->flags |= WIN_INTERNAL_PAINT;
 397     }
 398     else if (flags & RDW_NOINTERNALPAINT)
 399     {
 400         if ( wndPtr->hrgnUpdate <= 1 && (wndPtr->flags & WIN_INTERNAL_PAINT))
 401             QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 402         wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 403     }
 404
 405       /* Erase/update window */
 406
 407     if (flags & RDW_UPDATENOW)
 408     {
 409         if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */
 410             SendMessage16( hwnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 );
 411     }
 412     else if (flags & RDW_ERASENOW)
 413     {
 414         if (wndPtr->flags & WIN_NEEDS_NCPAINT)
 415             WIN_UpdateNCArea( wndPtr, FALSE);
 416
 417         if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 418         {
 419             HDC32 hdc = GetDCEx32( hwnd, wndPtr->hrgnUpdate,
 420                                    DCX_INTERSECTRGN | DCX_USESTYLE |
 421                                    DCX_KEEPCLIPRGN | DCX_WINDOWPAINT |
 422                                    (bIcon ? DCX_WINDOW : 0) );
 423             if (hdc)
 424             {
 425                if (SendMessage16( hwnd, (bIcon) ? WM_ICONERASEBKGND
 426                                                 : WM_ERASEBKGND,
 427                                   (WPARAM16)hdc, 0 ))
 428                   wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 429                ReleaseDC32( hwnd, hdc );
 430             }
 431         }
 432     }
 433
 434       /* Recursively process children */
 435
 436     if (!(flags & RDW_NOCHILDREN) &&
 437         ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) &&
 438         !(wndPtr->dwStyle & WS_MINIMIZE) )
 439     {
 440         if ( hrgnUpdate || rectUpdate )
 441         {
 442            if (!(hrgn = CreateRectRgn32( 0, 0, 0, 0 ))) return TRUE;
 443            if( !hrgnUpdate )
 444            {
 445                 control |= (RDW_C_DELETEHRGN | RDW_C_USEHRGN);
 446                 if( !(hrgnUpdate = CreateRectRgnIndirect32( rectUpdate )) )
 447                 {
 448                     DeleteObject32( hrgn );
 449                     return TRUE;
 450                 }
 451            }
 452            if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 453            {
 454                 for (ppWnd = list; *ppWnd; ppWnd++)
 455                 {
 456                     wndPtr = *ppWnd;
 457                     if (!IsWindow32(wndPtr->hwndSelf)) continue;
 458                     if (wndPtr->dwStyle & WS_VISIBLE)
 459                     {
 460                         SetRectRgn32( hrgn,
 461                                 wndPtr->rectWindow.left, wndPtr->rectWindow.top,
 462                                 wndPtr->rectWindow.right, wndPtr->rectWindow.bottom );
 463                         if (CombineRgn32( hrgn, hrgn, hrgnUpdate, RGN_AND ))
 464                         {
 465                             OffsetRgn32( hrgn, -wndPtr->rectClient.left,
 466                                         -wndPtr->rectClient.top );
 467                             PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, hrgn, flags,
 468                                          RDW_C_USEHRGN );
 469                         }
 470                     }
 471                 }
 472                 HeapFree( SystemHeap, 0, list );
 473            }
 474            DeleteObject32( hrgn );
 475            if (control & RDW_C_DELETEHRGN) DeleteObject32( hrgnUpdate );
 476         }
 477         else
 478         {
 479             if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 480             {
 481                 for (ppWnd = list; *ppWnd; ppWnd++)
 482                 {
 483                     wndPtr = *ppWnd;
 484                     if (IsWindow32( wndPtr->hwndSelf ))
 485                         PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags, 0 );
 486                 }
 487                 HeapFree( SystemHeap, 0, list );
 488             }
 489         }
 490
 491     }
 492     return TRUE;
 493 }
 494
 495
 496 /***********************************************************************
 497  *           RedrawWindow32    (USER32.426)
 498  */
 499 BOOL32 WINAPI RedrawWindow32( HWND32 hwnd, const RECT32 *rectUpdate,
 500                               HRGN32 hrgnUpdate, UINT32 flags )
 501 {
 502     return PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 );
 503 }
 504
 505
 506 /***********************************************************************
 507  *           RedrawWindow16    (USER.290)
 508  */
 509 BOOL16 WINAPI RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate,
 510                               HRGN16 hrgnUpdate, UINT16 flags )
 511 {
 512     if (rectUpdate)
 513     {
 514         RECT32 r;
 515         CONV_RECT16TO32( rectUpdate, &r );
 516         return (BOOL16)RedrawWindow32( (HWND32)hwnd, &r, hrgnUpdate, flags );
 517     }
 518     return (BOOL16)PAINT_RedrawWindow( (HWND32)hwnd, NULL,
 519                                        (HRGN32)hrgnUpdate, flags, 0 );
 520 }
 521
 522
 523 /***********************************************************************
 524  *           UpdateWindow16   (USER.124)
 525  */
 526 void WINAPI UpdateWindow16( HWND16 hwnd )
 527 {
 528     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 529 }
 530
 531 /***********************************************************************
 532  *           UpdateWindow32   (USER32.567)
 533  */
 534 void WINAPI UpdateWindow32( HWND32 hwnd )
 535 {
 536     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 537 }
 538
 539 /***********************************************************************
 540  *           InvalidateRgn16   (USER.126)
 541  */
 542 void WINAPI InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 543 {
 544     PAINT_RedrawWindow((HWND32)hwnd, NULL, (HRGN32)hrgn,
 545                        RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 546 }
 547
 548
 549 /***********************************************************************
 550  *           InvalidateRgn32   (USER32.329)
 551  */
 552 void WINAPI InvalidateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 553 {
 554     PAINT_RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 555 }
 556
 557
 558 /***********************************************************************
 559  *           InvalidateRect16   (USER.125)
 560  */
 561 void WINAPI InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase )
 562 {
 563     RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
 564 }
 565
 566
 567 /***********************************************************************
 568  *           InvalidateRect32   (USER32.328)
 569  */
 570 void WINAPI InvalidateRect32( HWND32 hwnd, const RECT32 *rect, BOOL32 erase )
 571 {
 572     PAINT_RedrawWindow( hwnd, rect, 0,
 573                         RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 574 }
 575
 576
 577 /***********************************************************************
 578  *           ValidateRgn16   (USER.128)
 579  */
 580 void WINAPI ValidateRgn16( HWND16 hwnd, HRGN16 hrgn )
 581 {
 582     PAINT_RedrawWindow( (HWND32)hwnd, NULL, (HRGN32)hrgn,
 583                         RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 584 }
 585
 586
 587 /***********************************************************************
 588  *           ValidateRgn32   (USER32.572)
 589  */
 590 void WINAPI ValidateRgn32( HWND32 hwnd, HRGN32 hrgn )
 591 {
 592     PAINT_RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 593 }
 594
 595
 596 /***********************************************************************
 597  *           ValidateRect16   (USER.127)
 598  */
 599 void WINAPI ValidateRect16( HWND16 hwnd, const RECT16 *rect )
 600 {
 601     RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN );
 602 }
 603
 604
 605 /***********************************************************************
 606  *           ValidateRect32   (USER32.571)
 607  */
 608 void WINAPI ValidateRect32( HWND32 hwnd, const RECT32 *rect )
 609 {
 610     PAINT_RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 611 }
 612
 613
 614 /***********************************************************************
 615  *           GetUpdateRect16   (USER.190)
 616  */
 617 BOOL16 WINAPI GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase )
 618 {
 619     RECT32 r;
 620     BOOL16 ret;
 621
 622     if (!rect) return GetUpdateRect32( hwnd, NULL, erase );
 623     ret = GetUpdateRect32( hwnd, &r, erase );
 624     CONV_RECT32TO16( &r, rect );
 625     return ret;
 626 }
 627
 628
 629 /***********************************************************************
 630  *           GetUpdateRect32   (USER32.297)
 631  */
 632 BOOL32 WINAPI GetUpdateRect32( HWND32 hwnd, LPRECT32 rect, BOOL32 erase )
 633 {
 634     WND * wndPtr = WIN_FindWndPtr( hwnd );
 635     if (!wndPtr) return FALSE;
 636
 637     if (rect)
 638     {
 639         if (wndPtr->hrgnUpdate > 1)
 640         {
 641             HRGN32 hrgn = CreateRectRgn32( 0, 0, 0, 0 );
 642             if (GetUpdateRgn32( hwnd, hrgn, erase ) == ERROR) return FALSE;
 643             GetRgnBox32( hrgn, rect );
 644             DeleteObject32( hrgn );
 645         }
 646         else SetRectEmpty32( rect );
 647     }
 648     return (wndPtr->hrgnUpdate > 1);
 649 }
 650
 651
 652 /***********************************************************************
 653  *           GetUpdateRgn16   (USER.237)
 654  */
 655 INT16 WINAPI GetUpdateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 656 {
 657     return GetUpdateRgn32( hwnd, hrgn, erase );
 658 }
 659
 660
 661 /***********************************************************************
 662  *           GetUpdateRgn32   (USER32.298)
 663  */
 664 INT32 WINAPI GetUpdateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 665 {
 666     INT32 retval;
 667     WND * wndPtr = WIN_FindWndPtr( hwnd );
 668     if (!wndPtr) return ERROR;
 669
 670     if (wndPtr->hrgnUpdate <= 1)
 671     {
 672         SetRectRgn32( hrgn, 0, 0, 0, 0 );
 673         return NULLREGION;
 674     }
 675     retval = CombineRgn32( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY );
 676     if (erase) RedrawWindow32( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN );
 677     return retval;
 678 }
 679
 680
 681 /***********************************************************************
 682  *           ExcludeUpdateRgn16   (USER.238)
 683  */
 684 INT16 WINAPI ExcludeUpdateRgn16( HDC16 hdc, HWND16 hwnd )
 685 {
 686     return ExcludeUpdateRgn32( hdc, hwnd );
 687 }
 688
 689
 690 /***********************************************************************
 691  *           ExcludeUpdateRgn32   (USER32.195)
 692  */
 693 INT32 WINAPI ExcludeUpdateRgn32( HDC32 hdc, HWND32 hwnd )
 694 {
 695     RECT32 rect;
 696     WND * wndPtr;
 697
 698     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR;
 699
 700     if (wndPtr->hrgnUpdate)
 701     {
 702         INT32 ret;
 703         HRGN32 hrgn = CreateRectRgn32(wndPtr->rectWindow.left - wndPtr->rectClient.left,
 704                                       wndPtr->rectWindow.top - wndPtr->rectClient.top,
 705                                       wndPtr->rectClient.right - wndPtr->rectClient.left,
 706                                       wndPtr->rectClient.bottom - wndPtr->rectClient.top);
 707         if( wndPtr->hrgnUpdate > 1 )
 708             CombineRgn32(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY);
 709
 710         /* do ugly coordinate translations in dce.c */
 711
 712         ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn );
 713         DeleteObject32( hrgn );
 714         return ret;
 715     }
 716     return GetClipBox32( hdc, &rect );
 717 }
 718
 719