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