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 "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         if( hwndParent )
 234             hbrush = PAINT_GetControlBrush( hwndParent, hwnd, hdc, (UINT16)hbrush );
 235         else
 236             return;
 237     if( hbrush )
 238         FillRect16( hdc, rect, hbrush );
 239 }
 240
 241
 242 /***********************************************************************
 243  *           GetControlBrush    (USER.326)
 244  */
 245 HBRUSH16 WINAPI GetControlBrush( HWND16 hwnd, HDC16 hdc, UINT16 ctlType )
 246 {
 247     WND* wndPtr = WIN_FindWndPtr( hwnd );
 248
 249     if((ctlType <= CTLCOLOR_MAX) && wndPtr )
 250     {
 251         WND* parent;
 252         if( wndPtr->dwStyle & WS_POPUP ) parent = wndPtr->owner;
 253         else parent = wndPtr->parent;
 254         if( !parent ) parent = wndPtr;
 255         return (HBRUSH16)PAINT_GetControlBrush( parent->hwndSelf, hwnd, hdc, ctlType );
 256     }
 257     return (HBRUSH16)0;
 258 }
 259
 260
 261 /***********************************************************************
 262  *           PAINT_RedrawWindow
 263  *
 264  * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask
 265  * SendMessage() calls. This is a comment inside DefWindowProc() source
 266  * from 16-bit SDK:
 267  *
 268  *   This message avoids lots of inter-app message traffic
 269  *   by switching to the other task and continuing the
 270  *   recursion there.
 271  *
 272  * wParam         = flags
 273  * LOWORD(lParam) = hrgnClip
 274  * HIWORD(lParam) = hwndSkip  (not used; always NULL)
 275  *
 276  * All in all, a prime candidate for a rewrite.
 277  */
 278 BOOL32 PAINT_RedrawWindow( HWND32 hwnd, const RECT32 *rectUpdate,
 279                            HRGN32 hrgnUpdate, UINT32 flags, UINT32 control )
 280 {
 281     BOOL32 bIcon;
 282     HRGN32 hrgn;
 283     RECT32 rectClient;
 284     WND* wndPtr;
 285     WND **list, **ppWnd;
 286
 287     if (!hwnd) hwnd = GetDesktopWindow32();
 288     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
 289     if (!WIN_IsWindowDrawable( wndPtr, !(flags & RDW_FRAME) ) )
 290         return TRUE;  /* No redraw needed */
 291
 292     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 293     if (rectUpdate)
 294     {
 295         TRACE(win, "%04x %d,%d-%d,%d %04x flags=%04x\n",
 296                     hwnd, rectUpdate->left, rectUpdate->top,
 297                     rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags );
 298     }
 299     else
 300     {
 301         TRACE(win, "%04x NULL %04x flags=%04x\n", hwnd, hrgnUpdate, flags);
 302     }
 303
 304     GetClientRect32( hwnd, &rectClient );
 305
 306     if (flags & RDW_INVALIDATE)  /* Invalidate */
 307     {
 308         int rgnNotEmpty = COMPLEXREGION;
 309
 310         if (wndPtr->hrgnUpdate > 1)  /* Is there already an update region? */
 311         {
 312             if ((hrgn = hrgnUpdate) == 0)
 313                 hrgn = CreateRectRgnIndirect32( rectUpdate ? rectUpdate :
 314                                                 &rectClient );
 315             rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 316                                         hrgn, RGN_OR );
 317             if (!hrgnUpdate) DeleteObject32( hrgn );
 318         }
 319         else  /* No update region yet */
 320         {
 321             if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 322                 QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 323             if (hrgnUpdate)
 324             {
 325                 wndPtr->hrgnUpdate = CreateRectRgn32( 0, 0, 0, 0 );
 326                 rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, hrgnUpdate,
 327                                             0, RGN_COPY );
 328             }
 329             else wndPtr->hrgnUpdate = CreateRectRgnIndirect32( rectUpdate ?
 330                                                     rectUpdate : &rectClient );
 331         }
 332
 333         if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT;
 334
 335         /* restrict update region to client area (FIXME: correct?) */
 336         if (wndPtr->hrgnUpdate)
 337         {
 338             HRGN32 clientRgn = CreateRectRgnIndirect32( &rectClient );
 339             rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, clientRgn,
 340                                         wndPtr->hrgnUpdate, RGN_AND );
 341             DeleteObject32( clientRgn );
 342         }
 343
 344         /* check for bogus update region */
 345         if ( rgnNotEmpty == NULLREGION )
 346            {
 347              wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 348              DeleteObject32( wndPtr->hrgnUpdate );
 349              wndPtr->hrgnUpdate=0;
 350              if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 351                    QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 352            }
 353         else
 354              if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
 355         flags |= RDW_FRAME;  /* Force children frame invalidation */
 356     }
 357     else if (flags & RDW_VALIDATE)  /* Validate */
 358     {
 359           /* We need an update region in order to validate anything */
 360         if (wndPtr->hrgnUpdate > 1)
 361         {
 362             if (!hrgnUpdate && !rectUpdate)
 363             {
 364                   /* Special case: validate everything */
 365                 DeleteObject32( wndPtr->hrgnUpdate );
 366                 wndPtr->hrgnUpdate = 0;
 367             }
 368             else
 369             {
 370                 if ((hrgn = hrgnUpdate) == 0)
 371                     hrgn = CreateRectRgnIndirect32( rectUpdate );
 372                 if (CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 373                                   hrgn, RGN_DIFF ) == NULLREGION)
 374                 {
 375                     DeleteObject32( wndPtr->hrgnUpdate );
 376                     wndPtr->hrgnUpdate = 0;
 377                 }
 378                 if (!hrgnUpdate) DeleteObject32( hrgn );
 379             }
 380             if (!wndPtr->hrgnUpdate)  /* No more update region */
 381                 if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 382                     QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 383         }
 384         if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT;
 385         if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 386     }
 387
 388       /* Set/clear internal paint flag */
 389
 390     if (flags & RDW_INTERNALPAINT)
 391     {
 392         if ( wndPtr->hrgnUpdate <= 1 && !(wndPtr->flags & WIN_INTERNAL_PAINT))
 393             QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 394         wndPtr->flags |= WIN_INTERNAL_PAINT;
 395     }
 396     else if (flags & RDW_NOINTERNALPAINT)
 397     {
 398         if ( wndPtr->hrgnUpdate <= 1 && (wndPtr->flags & WIN_INTERNAL_PAINT))
 399             QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 400         wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 401     }
 402
 403       /* Erase/update window */
 404
 405     if (flags & RDW_UPDATENOW)
 406     {
 407         if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */
 408             SendMessage16( hwnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 );
 409     }
 410     else if (flags & RDW_ERASENOW)
 411     {
 412         if (wndPtr->flags & WIN_NEEDS_NCPAINT)
 413             WIN_UpdateNCArea( wndPtr, FALSE);
 414
 415         if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 416         {
 417             HDC32 hdc = GetDCEx32( hwnd, wndPtr->hrgnUpdate,
 418                                    DCX_INTERSECTRGN | DCX_USESTYLE |
 419                                    DCX_KEEPCLIPRGN | DCX_WINDOWPAINT |
 420                                    (bIcon ? DCX_WINDOW : 0) );
 421             if (hdc)
 422             {
 423                if (SendMessage16( hwnd, (bIcon) ? WM_ICONERASEBKGND
 424                                                 : WM_ERASEBKGND,
 425                                   (WPARAM16)hdc, 0 ))
 426                   wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 427                ReleaseDC32( hwnd, hdc );
 428             }
 429         }
 430     }
 431
 432       /* Recursively process children */
 433
 434     if (!(flags & RDW_NOCHILDREN) &&
 435         ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) &&
 436         !(wndPtr->dwStyle & WS_MINIMIZE) )
 437     {
 438         if ( hrgnUpdate || rectUpdate )
 439         {
 440            if (!(hrgn = CreateRectRgn32( 0, 0, 0, 0 ))) return TRUE;
 441            if( !hrgnUpdate )
 442            {
 443                 control |= (RDW_C_DELETEHRGN | RDW_C_USEHRGN);
 444                 if( !(hrgnUpdate = CreateRectRgnIndirect32( rectUpdate )) )
 445                 {
 446                     DeleteObject32( hrgn );
 447                     return TRUE;
 448                 }
 449            }
 450            if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 451            {
 452                 for (ppWnd = list; *ppWnd; ppWnd++)
 453                 {
 454                     wndPtr = *ppWnd;
 455                     if (!IsWindow32(wndPtr->hwndSelf)) continue;
 456                     if (wndPtr->dwStyle & WS_VISIBLE)
 457                     {
 458                         SetRectRgn32( hrgn,
 459                                 wndPtr->rectWindow.left, wndPtr->rectWindow.top,
 460                                 wndPtr->rectWindow.right, wndPtr->rectWindow.bottom );
 461                         if (CombineRgn32( hrgn, hrgn, hrgnUpdate, RGN_AND ))
 462                         {
 463                             OffsetRgn32( hrgn, -wndPtr->rectClient.left,
 464                                         -wndPtr->rectClient.top );
 465                             PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, hrgn, flags,
 466                                          RDW_C_USEHRGN );
 467                         }
 468                     }
 469                 }
 470                 HeapFree( SystemHeap, 0, list );
 471            }
 472            DeleteObject32( hrgn );
 473            if (control & RDW_C_DELETEHRGN) DeleteObject32( hrgnUpdate );
 474         }
 475         else
 476         {
 477             if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 478             {
 479                 for (ppWnd = list; *ppWnd; ppWnd++)
 480                 {
 481                     wndPtr = *ppWnd;
 482                     if (IsWindow32( wndPtr->hwndSelf ))
 483                         PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags, 0 );
 484                 }
 485                 HeapFree( SystemHeap, 0, list );
 486             }
 487         }
 488
 489     }
 490     return TRUE;
 491 }
 492
 493
 494 /***********************************************************************
 495  *           RedrawWindow32    (USER32.426)
 496  */
 497 BOOL32 WINAPI RedrawWindow32( HWND32 hwnd, const RECT32 *rectUpdate,
 498                               HRGN32 hrgnUpdate, UINT32 flags )
 499 {
 500     return PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 );
 501 }
 502
 503
 504 /***********************************************************************
 505  *           RedrawWindow16    (USER.290)
 506  */
 507 BOOL16 WINAPI RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate,
 508                               HRGN16 hrgnUpdate, UINT16 flags )
 509 {
 510     if (rectUpdate)
 511     {
 512         RECT32 r;
 513         CONV_RECT16TO32( rectUpdate, &r );
 514         return (BOOL16)RedrawWindow32( (HWND32)hwnd, &r, hrgnUpdate, flags );
 515     }
 516     return (BOOL16)PAINT_RedrawWindow( (HWND32)hwnd, NULL,
 517                                        (HRGN32)hrgnUpdate, flags, 0 );
 518 }
 519
 520
 521 /***********************************************************************
 522  *           UpdateWindow16   (USER.124)
 523  */
 524 void WINAPI UpdateWindow16( HWND16 hwnd )
 525 {
 526     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 527 }
 528
 529 /***********************************************************************
 530  *           UpdateWindow32   (USER32.567)
 531  */
 532 void WINAPI UpdateWindow32( HWND32 hwnd )
 533 {
 534     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 535 }
 536
 537 /***********************************************************************
 538  *           InvalidateRgn16   (USER.126)
 539  */
 540 void WINAPI InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 541 {
 542     PAINT_RedrawWindow((HWND32)hwnd, NULL, (HRGN32)hrgn,
 543                        RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 544 }
 545
 546
 547 /***********************************************************************
 548  *           InvalidateRgn32   (USER32.329)
 549  */
 550 void WINAPI InvalidateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 551 {
 552     PAINT_RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 553 }
 554
 555
 556 /***********************************************************************
 557  *           InvalidateRect16   (USER.125)
 558  */
 559 void WINAPI InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase )
 560 {
 561     RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
 562 }
 563
 564
 565 /***********************************************************************
 566  *           InvalidateRect32   (USER32.328)
 567  */
 568 void WINAPI InvalidateRect32( HWND32 hwnd, const RECT32 *rect, BOOL32 erase )
 569 {
 570     PAINT_RedrawWindow( hwnd, rect, 0,
 571                         RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 572 }
 573
 574
 575 /***********************************************************************
 576  *           ValidateRgn16   (USER.128)
 577  */
 578 void WINAPI ValidateRgn16( HWND16 hwnd, HRGN16 hrgn )
 579 {
 580     PAINT_RedrawWindow( (HWND32)hwnd, NULL, (HRGN32)hrgn,
 581                         RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 582 }
 583
 584
 585 /***********************************************************************
 586  *           ValidateRgn32   (USER32.572)
 587  */
 588 void WINAPI ValidateRgn32( HWND32 hwnd, HRGN32 hrgn )
 589 {
 590     PAINT_RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 591 }
 592
 593
 594 /***********************************************************************
 595  *           ValidateRect16   (USER.127)
 596  */
 597 void WINAPI ValidateRect16( HWND16 hwnd, const RECT16 *rect )
 598 {
 599     RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN );
 600 }
 601
 602
 603 /***********************************************************************
 604  *           ValidateRect32   (USER32.571)
 605  */
 606 void WINAPI ValidateRect32( HWND32 hwnd, const RECT32 *rect )
 607 {
 608     PAINT_RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 609 }
 610
 611
 612 /***********************************************************************
 613  *           GetUpdateRect16   (USER.190)
 614  */
 615 BOOL16 WINAPI GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase )
 616 {
 617     RECT32 r;
 618     BOOL16 ret;
 619
 620     if (!rect) return GetUpdateRect32( hwnd, NULL, erase );
 621     ret = GetUpdateRect32( hwnd, &r, erase );
 622     CONV_RECT32TO16( &r, rect );
 623     return ret;
 624 }
 625
 626
 627 /***********************************************************************
 628  *           GetUpdateRect32   (USER32.297)
 629  */
 630 BOOL32 WINAPI GetUpdateRect32( HWND32 hwnd, LPRECT32 rect, BOOL32 erase )
 631 {
 632     WND * wndPtr = WIN_FindWndPtr( hwnd );
 633     if (!wndPtr) return FALSE;
 634
 635     if (rect)
 636     {
 637         if (wndPtr->hrgnUpdate > 1)
 638         {
 639             HRGN32 hrgn = CreateRectRgn32( 0, 0, 0, 0 );
 640             if (GetUpdateRgn32( hwnd, hrgn, erase ) == ERROR) return FALSE;
 641             GetRgnBox32( hrgn, rect );
 642             DeleteObject32( hrgn );
 643         }
 644         else SetRectEmpty32( rect );
 645     }
 646     return (wndPtr->hrgnUpdate > 1);
 647 }
 648
 649
 650 /***********************************************************************
 651  *           GetUpdateRgn16   (USER.237)
 652  */
 653 INT16 WINAPI GetUpdateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 654 {
 655     return GetUpdateRgn32( hwnd, hrgn, erase );
 656 }
 657
 658
 659 /***********************************************************************
 660  *           GetUpdateRgn32   (USER32.298)
 661  */
 662 INT32 WINAPI GetUpdateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 663 {
 664     INT32 retval;
 665     WND * wndPtr = WIN_FindWndPtr( hwnd );
 666     if (!wndPtr) return ERROR;
 667
 668     if (wndPtr->hrgnUpdate <= 1)
 669     {
 670         SetRectRgn32( hrgn, 0, 0, 0, 0 );
 671         return NULLREGION;
 672     }
 673     retval = CombineRgn32( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY );
 674     if (erase) RedrawWindow32( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN );
 675     return retval;
 676 }
 677
 678
 679 /***********************************************************************
 680  *           ExcludeUpdateRgn16   (USER.238)
 681  */
 682 INT16 WINAPI ExcludeUpdateRgn16( HDC16 hdc, HWND16 hwnd )
 683 {
 684     return ExcludeUpdateRgn32( hdc, hwnd );
 685 }
 686
 687
 688 /***********************************************************************
 689  *           ExcludeUpdateRgn32   (USER32.195)
 690  */
 691 INT32 WINAPI ExcludeUpdateRgn32( HDC32 hdc, HWND32 hwnd )
 692 {
 693     RECT32 rect;
 694     WND * wndPtr;
 695
 696     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR;
 697
 698     if (wndPtr->hrgnUpdate)
 699     {
 700         INT32 ret;
 701         HRGN32 hrgn = CreateRectRgn32(wndPtr->rectWindow.left - wndPtr->rectClient.left,
 702                                       wndPtr->rectWindow.top - wndPtr->rectClient.top,
 703                                       wndPtr->rectClient.right - wndPtr->rectClient.left,
 704                                       wndPtr->rectClient.bottom - wndPtr->rectClient.top);
 705         if( wndPtr->hrgnUpdate > 1 )
 706             CombineRgn32(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY);
 707
 708         /* do ugly coordinate translations in dce.c */
 709
 710         ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn );
 711         DeleteObject32( hrgn );
 712         return ret;
 713     }
 714     return GetClipBox32( hdc, &rect );
 715 }
 716
 717