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     DPtoLP16( lps->hdc, (LPPOINT16)&lps->rcPaint, 2 );
 148
 149     if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 150     {
 151         wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 152         lps->fErase = !SendMessage16(hwnd, (bIcon) ? WM_ICONERASEBKGND
 153                                                    : WM_ERASEBKGND,
 154                                      (WPARAM16)lps->hdc, 0 );
 155     }
 156     else lps->fErase = TRUE;
 157
 158     return lps->hdc;
 159 }
 160
 161
 162 /***********************************************************************
 163  *           BeginPaint32    (USER32.9)
 164  */
 165 HDC32 WINAPI BeginPaint32( HWND32 hwnd, PAINTSTRUCT32 *lps )
 166 {
 167     PAINTSTRUCT16 ps;
 168
 169     BeginPaint16( hwnd, &ps );
 170     lps->hdc            = (HDC32)ps.hdc;
 171     lps->fErase         = ps.fErase;
 172     lps->rcPaint.top    = ps.rcPaint.top;
 173     lps->rcPaint.left   = ps.rcPaint.left;
 174     lps->rcPaint.right  = ps.rcPaint.right;
 175     lps->rcPaint.bottom = ps.rcPaint.bottom;
 176     lps->fRestore       = ps.fRestore;
 177     lps->fIncUpdate     = ps.fIncUpdate;
 178     return lps->hdc;
 179 }
 180
 181
 182 /***********************************************************************
 183  *           EndPaint16    (USER.40)
 184  */
 185 BOOL16 WINAPI EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps )
 186 {
 187     ReleaseDC16( hwnd, lps->hdc );
 188     ShowCaret32( hwnd );
 189     return TRUE;
 190 }
 191
 192
 193 /***********************************************************************
 194  *           EndPaint32    (USER32.175)
 195  */
 196 BOOL32 WINAPI EndPaint32( HWND32 hwnd, const PAINTSTRUCT32 *lps )
 197 {
 198     ReleaseDC32( hwnd, lps->hdc );
 199     ShowCaret32( hwnd );
 200     return TRUE;
 201 }
 202
 203
 204 /***********************************************************************
 205  *           FillWindow    (USER.324)
 206  */
 207 void WINAPI FillWindow( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush )
 208 {
 209     RECT16 rect;
 210     GetClientRect16( hwnd, &rect );
 211     DPtoLP16( hdc, (LPPOINT16)&rect, 2 );
 212     PaintRect( hwndParent, hwnd, hdc, hbrush, &rect );
 213 }
 214
 215
 216 /***********************************************************************
 217  *           PAINT_GetControlBrush
 218  */
 219 static HBRUSH16 PAINT_GetControlBrush( HWND32 hParent, HWND32 hWnd, HDC16 hDC, UINT16 ctlType )
 220 {
 221     HBRUSH16 bkgBrush = (HBRUSH16)SendMessage32A( hParent, WM_CTLCOLORMSGBOX + ctlType,
 222                                                              (WPARAM32)hDC, (LPARAM)hWnd );
 223     if( !IsGDIObject(bkgBrush) )
 224         bkgBrush = DEFWND_ControlColor( hDC, ctlType );
 225     return bkgBrush;
 226 }
 227
 228
 229 /***********************************************************************
 230  *           PaintRect    (USER.325)
 231  */
 232 void WINAPI PaintRect( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc,
 233                        HBRUSH16 hbrush, const RECT16 *rect)
 234 {
 235     if( hbrush <= CTLCOLOR_MAX )
 236         if( hwndParent )
 237             hbrush = PAINT_GetControlBrush( hwndParent, hwnd, hdc, (UINT16)hbrush );
 238         else
 239             return;
 240     if( hbrush )
 241         FillRect16( hdc, rect, hbrush );
 242 }
 243
 244
 245 /***********************************************************************
 246  *           GetControlBrush    (USER.326)
 247  */
 248 HBRUSH16 WINAPI GetControlBrush( HWND16 hwnd, HDC16 hdc, UINT16 ctlType )
 249 {
 250     WND* wndPtr = WIN_FindWndPtr( hwnd );
 251
 252     if((ctlType <= CTLCOLOR_MAX) && wndPtr )
 253     {
 254         WND* parent;
 255         if( wndPtr->dwStyle & WS_POPUP ) parent = wndPtr->owner;
 256         else parent = wndPtr->parent;
 257         if( !parent ) parent = wndPtr;
 258         return (HBRUSH16)PAINT_GetControlBrush( parent->hwndSelf, hwnd, hdc, ctlType );
 259     }
 260     return (HBRUSH16)0;
 261 }
 262
 263
 264 /***********************************************************************
 265  *           PAINT_RedrawWindow
 266  *
 267  * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask
 268  * SendMessage() calls. This is a comment inside DefWindowProc() source
 269  * from 16-bit SDK:
 270  *
 271  *   This message avoids lots of inter-app message traffic
 272  *   by switching to the other task and continuing the
 273  *   recursion there.
 274  *
 275  * wParam         = flags
 276  * LOWORD(lParam) = hrgnClip
 277  * HIWORD(lParam) = hwndSkip  (not used; always NULL)
 278  *
 279  * All in all, a prime candidate for a rewrite.
 280  */
 281 BOOL32 PAINT_RedrawWindow( HWND32 hwnd, const RECT32 *rectUpdate,
 282                            HRGN32 hrgnUpdate, UINT32 flags, UINT32 control )
 283 {
 284     BOOL32 bIcon;
 285     HRGN32 hrgn;
 286     RECT32 rectClient;
 287     WND* wndPtr;
 288     WND **list, **ppWnd;
 289
 290     if (!hwnd) hwnd = GetDesktopWindow32();
 291     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
 292     if (!WIN_IsWindowDrawable( wndPtr, !(flags & RDW_FRAME) ) )
 293         return TRUE;  /* No redraw needed */
 294
 295     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 296     if (rectUpdate)
 297     {
 298         dprintf_win(stddeb, "RedrawWindow: %04x %d,%d-%d,%d %04x flags=%04x\n",
 299                     hwnd, rectUpdate->left, rectUpdate->top,
 300                     rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags );
 301     }
 302     else
 303     {
 304         dprintf_win(stddeb, "RedrawWindow: %04x NULL %04x flags=%04x\n",
 305                      hwnd, hrgnUpdate, flags);
 306     }
 307
 308     GetClientRect32( hwnd, &rectClient );
 309
 310     if (flags & RDW_INVALIDATE)  /* Invalidate */
 311     {
 312         int rgnNotEmpty = COMPLEXREGION;
 313
 314         if (wndPtr->hrgnUpdate > 1)  /* Is there already an update region? */
 315         {
 316             if ((hrgn = hrgnUpdate) == 0)
 317                 hrgn = CreateRectRgnIndirect32( rectUpdate ? rectUpdate :
 318                                                 &rectClient );
 319             rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 320                                         hrgn, RGN_OR );
 321             if (!hrgnUpdate) DeleteObject32( hrgn );
 322         }
 323         else  /* No update region yet */
 324         {
 325             if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 326                 QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 327             if (hrgnUpdate)
 328             {
 329                 wndPtr->hrgnUpdate = CreateRectRgn32( 0, 0, 0, 0 );
 330                 rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, hrgnUpdate,
 331                                             0, RGN_COPY );
 332             }
 333             else wndPtr->hrgnUpdate = CreateRectRgnIndirect32( rectUpdate ?
 334                                                     rectUpdate : &rectClient );
 335         }
 336
 337         if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT;
 338
 339         /* check for bogus update region */
 340         if ( rgnNotEmpty == NULLREGION )
 341            {
 342              wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 343              DeleteObject32( wndPtr->hrgnUpdate );
 344              wndPtr->hrgnUpdate=0;
 345              if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 346                    QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 347            }
 348         else
 349              if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
 350         flags |= RDW_FRAME;  /* Force children frame invalidation */
 351     }
 352     else if (flags & RDW_VALIDATE)  /* Validate */
 353     {
 354           /* We need an update region in order to validate anything */
 355         if (wndPtr->hrgnUpdate > 1)
 356         {
 357             if (!hrgnUpdate && !rectUpdate)
 358             {
 359                   /* Special case: validate everything */
 360                 DeleteObject32( wndPtr->hrgnUpdate );
 361                 wndPtr->hrgnUpdate = 0;
 362             }
 363             else
 364             {
 365                 if ((hrgn = hrgnUpdate) == 0)
 366                     hrgn = CreateRectRgnIndirect32( rectUpdate );
 367                 if (CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 368                                   hrgn, RGN_DIFF ) == NULLREGION)
 369                 {
 370                     DeleteObject32( wndPtr->hrgnUpdate );
 371                     wndPtr->hrgnUpdate = 0;
 372                 }
 373                 if (!hrgnUpdate) DeleteObject32( hrgn );
 374             }
 375             if (!wndPtr->hrgnUpdate)  /* No more update region */
 376                 if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 377                     QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 378         }
 379         if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT;
 380         if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 381     }
 382
 383       /* Set/clear internal paint flag */
 384
 385     if (flags & RDW_INTERNALPAINT)
 386     {
 387         if ( wndPtr->hrgnUpdate <= 1 && !(wndPtr->flags & WIN_INTERNAL_PAINT))
 388             QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 389         wndPtr->flags |= WIN_INTERNAL_PAINT;
 390     }
 391     else if (flags & RDW_NOINTERNALPAINT)
 392     {
 393         if ( wndPtr->hrgnUpdate <= 1 && (wndPtr->flags & WIN_INTERNAL_PAINT))
 394             QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 395         wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 396     }
 397
 398       /* Erase/update window */
 399
 400     if (flags & RDW_UPDATENOW)
 401     {
 402         if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */
 403             SendMessage16( hwnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 );
 404     }
 405     else if (flags & RDW_ERASENOW)
 406     {
 407         if (wndPtr->flags & WIN_NEEDS_NCPAINT)
 408             WIN_UpdateNCArea( wndPtr, FALSE);
 409
 410         if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 411         {
 412             HDC32 hdc = GetDCEx32( hwnd, wndPtr->hrgnUpdate,
 413                                    DCX_INTERSECTRGN | DCX_USESTYLE |
 414                                    DCX_KEEPCLIPRGN | DCX_WINDOWPAINT |
 415                                    (bIcon ? DCX_WINDOW : 0) );
 416             if (hdc)
 417             {
 418                if (SendMessage16( hwnd, (bIcon) ? WM_ICONERASEBKGND
 419                                                 : WM_ERASEBKGND,
 420                                   (WPARAM16)hdc, 0 ))
 421                   wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 422                ReleaseDC32( hwnd, hdc );
 423             }
 424         }
 425     }
 426
 427       /* Recursively process children */
 428
 429     if (!(flags & RDW_NOCHILDREN) &&
 430         ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) &&
 431         !(wndPtr->dwStyle & WS_MINIMIZE) )
 432     {
 433         if ( hrgnUpdate || rectUpdate )
 434         {
 435            if (!(hrgn = CreateRectRgn32( 0, 0, 0, 0 ))) return TRUE;
 436            if( !hrgnUpdate )
 437            {
 438                 control |= (RDW_C_DELETEHRGN | RDW_C_USEHRGN);
 439                 if( !(hrgnUpdate = CreateRectRgnIndirect32( rectUpdate )) )
 440                 {
 441                     DeleteObject32( hrgn );
 442                     return TRUE;
 443                 }
 444            }
 445            if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 446            {
 447                 for (ppWnd = list; *ppWnd; ppWnd++)
 448                 {
 449                     wndPtr = *ppWnd;
 450                     if (!IsWindow32(wndPtr->hwndSelf)) continue;
 451                     if (wndPtr->dwStyle & WS_VISIBLE)
 452                     {
 453                         SetRectRgn32( hrgn,
 454                                 wndPtr->rectWindow.left, wndPtr->rectWindow.top,
 455                                 wndPtr->rectWindow.right, wndPtr->rectWindow.bottom );
 456                         if (CombineRgn32( hrgn, hrgn, hrgnUpdate, RGN_AND ))
 457                         {
 458                             OffsetRgn32( hrgn, -wndPtr->rectClient.left,
 459                                         -wndPtr->rectClient.top );
 460                             PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, hrgn, flags,
 461                                          RDW_C_USEHRGN );
 462                         }
 463                     }
 464                 }
 465                 HeapFree( SystemHeap, 0, list );
 466            }
 467            DeleteObject32( hrgn );
 468            if (control & RDW_C_DELETEHRGN) DeleteObject32( hrgnUpdate );
 469         }
 470         else
 471         {
 472             if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 473             {
 474                 for (ppWnd = list; *ppWnd; ppWnd++)
 475                 {
 476                     wndPtr = *ppWnd;
 477                     if (IsWindow32( wndPtr->hwndSelf ))
 478                         PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags, 0 );
 479                 }
 480                 HeapFree( SystemHeap, 0, list );
 481             }
 482         }
 483
 484     }
 485     return TRUE;
 486 }
 487
 488
 489 /***********************************************************************
 490  *           RedrawWindow32    (USER32.425)
 491  */
 492 BOOL32 WINAPI RedrawWindow32( HWND32 hwnd, const RECT32 *rectUpdate,
 493                               HRGN32 hrgnUpdate, UINT32 flags )
 494 {
 495     return PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 );
 496 }
 497
 498
 499 /***********************************************************************
 500  *           RedrawWindow16    (USER.290)
 501  */
 502 BOOL16 WINAPI RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate,
 503                               HRGN16 hrgnUpdate, UINT16 flags )
 504 {
 505     if (rectUpdate)
 506     {
 507         RECT32 r;
 508         CONV_RECT16TO32( rectUpdate, &r );
 509         return (BOOL16)RedrawWindow32( (HWND32)hwnd, &r, hrgnUpdate, flags );
 510     }
 511     return (BOOL16)PAINT_RedrawWindow( (HWND32)hwnd, NULL,
 512                                        (HRGN32)hrgnUpdate, flags, 0 );
 513 }
 514
 515
 516 /***********************************************************************
 517  *           UpdateWindow16   (USER.124)
 518  */
 519 void WINAPI UpdateWindow16( HWND16 hwnd )
 520 {
 521     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 522 }
 523
 524 /***********************************************************************
 525  *           UpdateWindow32   (USER32.566)
 526  */
 527 void WINAPI UpdateWindow32( HWND32 hwnd )
 528 {
 529     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 530 }
 531
 532 /***********************************************************************
 533  *           InvalidateRgn16   (USER.126)
 534  */
 535 void WINAPI InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 536 {
 537     PAINT_RedrawWindow((HWND32)hwnd, NULL, (HRGN32)hrgn,
 538                        RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 539 }
 540
 541
 542 /***********************************************************************
 543  *           InvalidateRgn32   (USER32.328)
 544  */
 545 void WINAPI InvalidateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 546 {
 547     PAINT_RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 548 }
 549
 550
 551 /***********************************************************************
 552  *           InvalidateRect16   (USER.125)
 553  */
 554 void WINAPI InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase )
 555 {
 556     RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
 557 }
 558
 559
 560 /***********************************************************************
 561  *           InvalidateRect32   (USER32.327)
 562  */
 563 void WINAPI InvalidateRect32( HWND32 hwnd, const RECT32 *rect, BOOL32 erase )
 564 {
 565     PAINT_RedrawWindow( hwnd, rect, 0,
 566                         RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 567 }
 568
 569
 570 /***********************************************************************
 571  *           ValidateRgn16   (USER.128)
 572  */
 573 void WINAPI ValidateRgn16( HWND16 hwnd, HRGN16 hrgn )
 574 {
 575     PAINT_RedrawWindow( (HWND32)hwnd, NULL, (HRGN32)hrgn,
 576                         RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 577 }
 578
 579
 580 /***********************************************************************
 581  *           ValidateRgn32   (USER32.571)
 582  */
 583 void WINAPI ValidateRgn32( HWND32 hwnd, HRGN32 hrgn )
 584 {
 585     PAINT_RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 586 }
 587
 588
 589 /***********************************************************************
 590  *           ValidateRect16   (USER.127)
 591  */
 592 void WINAPI ValidateRect16( HWND16 hwnd, const RECT16 *rect )
 593 {
 594     RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN );
 595 }
 596
 597
 598 /***********************************************************************
 599  *           ValidateRect32   (USER32.570)
 600  */
 601 void WINAPI ValidateRect32( HWND32 hwnd, const RECT32 *rect )
 602 {
 603     PAINT_RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 604 }
 605
 606
 607 /***********************************************************************
 608  *           GetUpdateRect16   (USER.190)
 609  */
 610 BOOL16 WINAPI GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase )
 611 {
 612     RECT32 r;
 613     BOOL16 ret;
 614
 615     if (!rect) return GetUpdateRect32( hwnd, NULL, erase );
 616     ret = GetUpdateRect32( hwnd, &r, erase );
 617     CONV_RECT32TO16( &r, rect );
 618     return ret;
 619 }
 620
 621
 622 /***********************************************************************
 623  *           GetUpdateRect32   (USER32.296)
 624  */
 625 BOOL32 WINAPI GetUpdateRect32( HWND32 hwnd, LPRECT32 rect, BOOL32 erase )
 626 {
 627     WND * wndPtr = WIN_FindWndPtr( hwnd );
 628     if (!wndPtr) return FALSE;
 629
 630     if (rect)
 631     {
 632         if (wndPtr->hrgnUpdate > 1)
 633         {
 634             HRGN32 hrgn = CreateRectRgn32( 0, 0, 0, 0 );
 635             if (GetUpdateRgn32( hwnd, hrgn, erase ) == ERROR) return FALSE;
 636             GetRgnBox32( hrgn, rect );
 637             DeleteObject32( hrgn );
 638         }
 639         else SetRectEmpty32( rect );
 640     }
 641     return (wndPtr->hrgnUpdate > 1);
 642 }
 643
 644
 645 /***********************************************************************
 646  *           GetUpdateRgn16   (USER.237)
 647  */
 648 INT16 WINAPI GetUpdateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 649 {
 650     return GetUpdateRgn32( hwnd, hrgn, erase );
 651 }
 652
 653
 654 /***********************************************************************
 655  *           GetUpdateRgn32   (USER32.297)
 656  */
 657 INT32 WINAPI GetUpdateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 658 {
 659     INT32 retval;
 660     WND * wndPtr = WIN_FindWndPtr( hwnd );
 661     if (!wndPtr) return ERROR;
 662
 663     if (wndPtr->hrgnUpdate <= 1)
 664     {
 665         SetRectRgn32( hrgn, 0, 0, 0, 0 );
 666         return NULLREGION;
 667     }
 668     retval = CombineRgn32( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY );
 669     if (erase) RedrawWindow32( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN );
 670     return retval;
 671 }
 672
 673
 674 /***********************************************************************
 675  *           ExcludeUpdateRgn16   (USER.238)
 676  */
 677 INT16 WINAPI ExcludeUpdateRgn16( HDC16 hdc, HWND16 hwnd )
 678 {
 679     return ExcludeUpdateRgn32( hdc, hwnd );
 680 }
 681
 682
 683 /***********************************************************************
 684  *           ExcludeUpdateRgn32   (USER32.194)
 685  */
 686 INT32 WINAPI ExcludeUpdateRgn32( HDC32 hdc, HWND32 hwnd )
 687 {
 688     RECT32 rect;
 689     WND * wndPtr;
 690
 691     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR;
 692
 693     if (wndPtr->hrgnUpdate)
 694     {
 695         INT32 ret;
 696         HRGN32 hrgn = CreateRectRgn32(wndPtr->rectWindow.left - wndPtr->rectClient.left,
 697                                       wndPtr->rectWindow.top - wndPtr->rectClient.top,
 698                                       wndPtr->rectClient.right - wndPtr->rectClient.left,
 699                                       wndPtr->rectClient.bottom - wndPtr->rectClient.top);
 700         if( wndPtr->hrgnUpdate > 1 )
 701             CombineRgn32(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY);
 702
 703         /* do ugly coordinate translations in dce.c */
 704
 705         ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn );
 706         DeleteObject32( hrgn );
 707         return ret;
 708     }
 709     return GetClipBox32( hdc, &rect );
 710 }
 711
 712