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

   1 /*
   2  * Window painting functions
   3  *
   4  * Copyright 1993, 1994, 1995 Alexandre Julliard
   5  *                       1999 Alex Korobka
   6  *
   7  */
   8
   9 #include "region.h"
  10 #include "win.h"
  11 #include "queue.h"
  12 #include "dce.h"
  13 #include "heap.h"
  14 #include "debugtools.h"
  15 #include "wine/winuser16.h"
  16
  17 DECLARE_DEBUG_CHANNEL(nonclient)
  18 DECLARE_DEBUG_CHANNEL(win)
  19
  20 /* client rect in window coordinates */
  21
  22 #define GETCLIENTRECTW( wnd, r )        (r).left = (wnd)->rectClient.left - (wnd)->rectWindow.left; \
  23                                         (r).top = (wnd)->rectClient.top - (wnd)->rectWindow.top; \
  24                                         (r).right = (wnd)->rectClient.right - (wnd)->rectWindow.left; \
  25                                         (r).bottom = (wnd)->rectClient.bottom - (wnd)->rectWindow.top
  26
  27   /* Last CTLCOLOR id */
  28 #define CTLCOLOR_MAX   CTLCOLOR_STATIC
  29
  30
  31 /***********************************************************************
  32  *           WIN_UpdateNCRgn
  33  *
  34  * NOTE: Caller is responsible for the returned region.
  35  */
  36 HRGN WIN_UpdateNCRgn(WND* wnd, BOOL bUpdate, BOOL bForceEntire )
  37 {
  38     HRGN hClip = 0;
  39
  40     TRACE_(nonclient)("hwnd %04x, hrgnUpdate %04x, ncf %i\n",
  41                       wnd->hwndSelf, wnd->hrgnUpdate, (wnd->flags & WIN_NEEDS_NCPAINT)!=0 );
  42
  43     /* desktop window doesn't have nonclient area */
  44     if(wnd == WIN_GetDesktop())
  45     {
  46         wnd->flags &= ~WIN_NEEDS_NCPAINT;
  47         WIN_ReleaseDesktop();
  48         return 0;
  49     }
  50     WIN_ReleaseDesktop();
  51
  52     if ((wnd->hwndSelf == GetActiveWindow()) &&
  53         !(wnd->flags & WIN_NCACTIVATED) )
  54     {
  55         wnd->flags |= WIN_NCACTIVATED;
  56         bForceEntire = TRUE;
  57     }
  58
  59     if( (wnd->flags & WIN_NEEDS_NCPAINT) && wnd->hrgnUpdate )
  60     {
  61         RECT r, r2, r3;
  62
  63         GETCLIENTRECTW( wnd, r );
  64
  65         TRACE_(nonclient)("\tclient box (%i,%i-%i,%i)\n", r.left, r.top, r.right, r.bottom );
  66
  67         if( wnd->hrgnUpdate > 1 )
  68         {
  69                 GetRgnBox( wnd->hrgnUpdate, &r2 );
  70                 UnionRect( &r3, &r2, &r );
  71                 if( r3.left != r.left || r3.top != r.top ||
  72                     r3.right != r.right || r3.bottom != r.bottom )
  73                 {
  74                     hClip = CreateRectRgn( 0, 0, 0, 0 );
  75                     CombineRgn( hClip, wnd->hrgnUpdate, 0, RGN_COPY );
  76                 }
  77         }
  78         else
  79                 hClip = wnd->hrgnUpdate;
  80
  81         if( wnd->hrgnUpdate > 1 )
  82         {
  83             REGION_CropRgn( wnd->hrgnUpdate, wnd->hrgnUpdate, &r, NULL );
  84
  85             if( bUpdate )
  86             {
  87                 GetRgnBox( wnd->hrgnUpdate, &r3 );
  88                 if( IsRectEmpty( &r3 ) )
  89                 {
  90                     /* delete update region since all invalid
  91                      * parts were in the nonclient area */
  92
  93                     DeleteObject( wnd->hrgnUpdate );
  94                     wnd->hrgnUpdate = 0;
  95                     if(!(wnd->flags & WIN_INTERNAL_PAINT))
  96                         QUEUE_DecPaintCount( wnd->hmemTaskQ );
  97                     wnd->flags &= ~WIN_NEEDS_ERASEBKGND;
  98                 }
  99             }
 100         }
 101         else /* entire client rect */
 102            wnd->hrgnUpdate = CreateRectRgnIndirect( &r );
 103     }
 104
 105     if(!hClip && bForceEntire ) hClip = 1;
 106     wnd->flags &= ~WIN_NEEDS_NCPAINT;
 107
 108     if( hClip )
 109         SendMessageA( wnd->hwndSelf, WM_NCPAINT, hClip, 0L );
 110
 111     return hClip;
 112 }
 113
 114
 115 /***********************************************************************
 116  *           BeginPaint16    (USER.39)
 117  */
 118 HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
 119 {
 120     BOOL bIcon;
 121     HRGN hrgnUpdate;
 122     WND *wndPtr = WIN_FindWndPtr( hwnd );
 123     if (!wndPtr) return 0;
 124
 125     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 126
 127     wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
 128
 129     if( (hrgnUpdate = WIN_UpdateNCRgn( wndPtr, FALSE, FALSE )) > 1 )
 130         DeleteObject( hrgnUpdate );
 131
 132     if( ((hrgnUpdate = wndPtr->hrgnUpdate) != 0) || (wndPtr->flags & WIN_INTERNAL_PAINT))
 133         QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 134
 135     wndPtr->hrgnUpdate = 0;
 136     wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 137
 138     HideCaret( hwnd );
 139
 140     TRACE_(win)("hrgnUpdate = %04x, \n", hrgnUpdate);
 141
 142     if (wndPtr->class->style & CS_PARENTDC)
 143     {
 144         /* Don't clip the output to the update region for CS_PARENTDC window */
 145         if( hrgnUpdate > 1 )
 146             DeleteObject(hrgnUpdate);
 147         lps->hdc = GetDCEx16( hwnd, 0, DCX_WINDOWPAINT | DCX_USESTYLE |
 148                               (bIcon ? DCX_WINDOW : 0) );
 149     }
 150     else
 151     {
 152         if( hrgnUpdate )
 153             OffsetRgn( hrgnUpdate, wndPtr->rectWindow.left - wndPtr->rectClient.left,
 154                                    wndPtr->rectWindow.top - wndPtr->rectClient.top );
 155         lps->hdc = GetDCEx16(hwnd, hrgnUpdate, DCX_INTERSECTRGN |
 156                              DCX_WINDOWPAINT | DCX_USESTYLE |
 157                              (bIcon ? DCX_WINDOW : 0) );
 158     }
 159
 160     TRACE_(win)("hdc = %04x\n", lps->hdc);
 161
 162     if (!lps->hdc)
 163     {
 164         WARN_(win)("GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd);
 165         WIN_ReleaseWndPtr(wndPtr);
 166         return 0;
 167     }
 168
 169     GetClipBox16( lps->hdc, &lps->rcPaint );
 170
 171     TRACE_(win)("box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top,
 172                     lps->rcPaint.right, lps->rcPaint.bottom );
 173
 174     if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 175     {
 176         wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 177         lps->fErase = !SendMessage16(hwnd, (bIcon) ? WM_ICONERASEBKGND
 178                                                    : WM_ERASEBKGND,
 179                                      (WPARAM16)lps->hdc, 0 );
 180     }
 181     else lps->fErase = TRUE;
 182
 183     WIN_ReleaseWndPtr(wndPtr);
 184     return lps->hdc;
 185 }
 186
 187
 188 /***********************************************************************
 189  *           BeginPaint32    (USER32.10)
 190  */
 191 HDC WINAPI BeginPaint( HWND hwnd, PAINTSTRUCT *lps )
 192 {
 193     PAINTSTRUCT16 ps;
 194
 195     BeginPaint16( hwnd, &ps );
 196     lps->hdc            = (HDC)ps.hdc;
 197     lps->fErase         = ps.fErase;
 198     lps->rcPaint.top    = ps.rcPaint.top;
 199     lps->rcPaint.left   = ps.rcPaint.left;
 200     lps->rcPaint.right  = ps.rcPaint.right;
 201     lps->rcPaint.bottom = ps.rcPaint.bottom;
 202     lps->fRestore       = ps.fRestore;
 203     lps->fIncUpdate     = ps.fIncUpdate;
 204     return lps->hdc;
 205 }
 206
 207
 208 /***********************************************************************
 209  *           EndPaint16    (USER.40)
 210  */
 211 BOOL16 WINAPI EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps )
 212 {
 213     ReleaseDC16( hwnd, lps->hdc );
 214     ShowCaret( hwnd );
 215     return TRUE;
 216 }
 217
 218
 219 /***********************************************************************
 220  *           EndPaint32    (USER32.176)
 221  */
 222 BOOL WINAPI EndPaint( HWND hwnd, const PAINTSTRUCT *lps )
 223 {
 224     ReleaseDC( hwnd, lps->hdc );
 225     ShowCaret( hwnd );
 226     return TRUE;
 227 }
 228
 229
 230 /***********************************************************************
 231  *           FillWindow    (USER.324)
 232  */
 233 void WINAPI FillWindow16( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush )
 234 {
 235     RECT16 rect;
 236     GetClientRect16( hwnd, &rect );
 237     DPtoLP16( hdc, (LPPOINT16)&rect, 2 );
 238     PaintRect16( hwndParent, hwnd, hdc, hbrush, &rect );
 239 }
 240
 241
 242 /***********************************************************************
 243  *           PAINT_GetControlBrush
 244  */
 245 static HBRUSH16 PAINT_GetControlBrush( HWND hParent, HWND hWnd, HDC16 hDC, UINT16 ctlType )
 246 {
 247     HBRUSH16 bkgBrush = (HBRUSH16)SendMessageA( hParent, WM_CTLCOLORMSGBOX + ctlType,
 248                                                              (WPARAM)hDC, (LPARAM)hWnd );
 249     if( !IsGDIObject16(bkgBrush) )
 250         bkgBrush = DEFWND_ControlColor( hDC, ctlType );
 251     return bkgBrush;
 252 }
 253
 254
 255 /***********************************************************************
 256  *           PaintRect    (USER.325)
 257  */
 258 void WINAPI PaintRect16( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc,
 259                        HBRUSH16 hbrush, const RECT16 *rect)
 260 {
 261     if( hbrush <= CTLCOLOR_MAX )
 262     {
 263         if( hwndParent )
 264             hbrush = PAINT_GetControlBrush( hwndParent, hwnd, hdc, (UINT16)hbrush );
 265         else
 266             return;
 267     }
 268     if( hbrush )
 269         FillRect16( hdc, rect, hbrush );
 270 }
 271
 272
 273 /***********************************************************************
 274  *           GetControlBrush    (USER.326)
 275  */
 276 HBRUSH16 WINAPI GetControlBrush16( HWND16 hwnd, HDC16 hdc, UINT16 ctlType )
 277 {
 278     WND* wndPtr = WIN_FindWndPtr( hwnd );
 279     HBRUSH16 retvalue;
 280
 281     if((ctlType <= CTLCOLOR_MAX) && wndPtr )
 282     {
 283         WND* parent;
 284         if( wndPtr->dwStyle & WS_POPUP ) parent = WIN_LockWndPtr(wndPtr->owner);
 285         else parent = WIN_LockWndPtr(wndPtr->parent);
 286         if( !parent ) parent = wndPtr;
 287         retvalue = (HBRUSH16)PAINT_GetControlBrush( parent->hwndSelf, hwnd, hdc, ctlType );
 288         WIN_ReleaseWndPtr(parent);
 289         goto END;
 290     }
 291     retvalue = (HBRUSH16)0;
 292 END:
 293     WIN_ReleaseWndPtr(wndPtr);
 294     return retvalue;
 295     }
 296
 297
 298 /***********************************************************************
 299  *           PAINT_RedrawWindow
 300  *
 301  * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask
 302  * SendMessage() calls. This is a comment inside DefWindowProc() source
 303  * from 16-bit SDK:
 304  *
 305  *   This message avoids lots of inter-app message traffic
 306  *   by switching to the other task and continuing the
 307  *   recursion there.
 308  *
 309  * wParam         = flags
 310  * LOWORD(lParam) = hrgnClip
 311  * HIWORD(lParam) = hwndSkip  (not used; always NULL)
 312  *
 313  */
 314 BOOL PAINT_RedrawWindow( HWND hwnd, const RECT *rectUpdate,
 315                            HRGN hrgnUpdate, UINT flags, UINT ex )
 316 {
 317     BOOL bIcon;
 318     HRGN hrgn = 0, hrgn2 = 0;
 319     RECT r, r2;
 320     POINT pt;
 321     WND* wndPtr;
 322     WND **list, **ppWnd;
 323
 324     if (!hwnd) hwnd = GetDesktopWindow();
 325     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
 326     if (!WIN_IsWindowDrawable( wndPtr, !(flags & RDW_FRAME) ) )
 327     {
 328         WIN_ReleaseWndPtr(wndPtr);
 329         return TRUE;  /* No redraw needed */
 330     }
 331
 332     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 333     if (rectUpdate)
 334     {
 335         TRACE_(win)("%04x (%04x) %d,%d-%d,%d %04x flags=%04x, exflags=%04x\n",
 336                     hwnd, wndPtr->hrgnUpdate, rectUpdate->left, rectUpdate->top,
 337                     rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags, ex );
 338     }
 339     else
 340     {
 341         if( hrgnUpdate ) GetRgnBox( hrgnUpdate, &r );
 342         else SetRectEmpty( &r );
 343         TRACE_(win)("%04x (%04x) NULL %04x box (%i,%i-%i,%i) flags=%04x, exflags=%04x\n",
 344               hwnd, wndPtr->hrgnUpdate, hrgnUpdate, r.left, r.top, r.right, r.bottom, flags, ex);
 345     }
 346
 347     if( flags & RDW_FRAME )
 348         r = wndPtr->rectWindow;
 349     else
 350         r = wndPtr->rectClient;
 351     if( ex & RDW_EX_XYWINDOW )
 352         OffsetRect( &r, -wndPtr->rectWindow.left, -wndPtr->rectWindow.top );
 353     else
 354         OffsetRect( &r, -wndPtr->rectClient.left, -wndPtr->rectClient.top );
 355
 356     /* r is the rectangle we crop the supplied update rgn/rect with */
 357
 358     GETCLIENTRECTW( wndPtr, r2 );
 359     pt.x = r2.left; pt.y = r2.top;
 360
 361     if (flags & RDW_INVALIDATE)  /* ------------------------- Invalidate */
 362     {
 363         BOOL bHasUpdateRgn = (BOOL)wndPtr->hrgnUpdate;
 364
 365         /* wndPtr->hrgnUpdate is in window coordinates, parameters are
 366          * in client coordinates unless RDW_EX_XYWINDOW is set.
 367          */
 368
 369         if( hrgnUpdate )
 370         {
 371             hrgn = REGION_CropRgn( 0, hrgnUpdate, &r, (ex & RDW_EX_XYWINDOW) ? NULL : &pt );
 372             GetRgnBox( hrgn, &r2 );
 373             if( IsRectEmpty( &r2 ) )
 374                 goto END;
 375
 376             if( wndPtr->hrgnUpdate == 0 )
 377             {
 378                 wndPtr->hrgnUpdate = CreateRectRgn( 0, 0, 0, 0 );
 379                 CombineRgn( wndPtr->hrgnUpdate, hrgn, 0, RGN_COPY );
 380             }
 381             else
 382                 if( wndPtr->hrgnUpdate > 1 )
 383                     CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, hrgn, RGN_OR );
 384         }
 385         else if( rectUpdate )
 386         {
 387             if( !IntersectRect( &r2, &r, rectUpdate ) )
 388                 goto END;
 389             if( !(ex & RDW_EX_XYWINDOW) )
 390                 OffsetRect( &r2, pt.x, pt.y );
 391
 392 rect2i:     /* r2 contains a rect to add to the update region */
 393
 394             hrgn = CreateRectRgnIndirect( &r2 );
 395             if( wndPtr->hrgnUpdate == 0 )
 396                 wndPtr->hrgnUpdate = CreateRectRgnIndirect( &r2 );
 397             else
 398                 if( wndPtr->hrgnUpdate > 1 )
 399                     REGION_UnionRectWithRgn( wndPtr->hrgnUpdate, &r2 );
 400         }
 401         else /* entire window or client depending on RDW_FRAME */
 402         {
 403             hrgn = 1;
 404             if( flags & RDW_FRAME )
 405             {
 406                 if( wndPtr->hrgnUpdate )
 407                     DeleteObject( wndPtr->hrgnUpdate );
 408                 wndPtr->hrgnUpdate = 1;
 409             }
 410             else /* by default r2 contains client rect in window coordinates */
 411                 goto rect2i;
 412         }
 413
 414         if( !bHasUpdateRgn && wndPtr->hrgnUpdate && !(wndPtr->flags & WIN_INTERNAL_PAINT))
 415             QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 416
 417         if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT;
 418         if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
 419         flags |= RDW_FRAME;  /* Force children frame invalidation */
 420     }
 421     else if (flags & RDW_VALIDATE)  /* ------------------------- Validate */
 422     {
 423         if (wndPtr->hrgnUpdate) /* need an update region in order to validate anything */
 424         {
 425             if( hrgnUpdate || rectUpdate )
 426             {
 427                 if( hrgnUpdate )
 428                 {
 429                     hrgn = REGION_CropRgn( hrgn, hrgnUpdate,  &r, (ex & RDW_EX_XYWINDOW) ? NULL : &pt );
 430                     GetRgnBox( hrgn, &r2 );
 431                     if( IsRectEmpty( &r2 ) )
 432                         goto END;
 433                 }
 434                 else
 435                 {
 436                     if( !IntersectRect( &r2, &r, rectUpdate ) )
 437                         goto END;
 438                     if( !(ex & RDW_EX_XYWINDOW) )
 439                         OffsetRect( &r2, pt.x, pt.y );
 440 rect2v:
 441                     hrgn = CreateRectRgnIndirect( &r2 );
 442                 }
 443
 444                 if( wndPtr->hrgnUpdate == 1 )
 445                 {
 446                     wndPtr->hrgnUpdate = CreateRectRgn( 0, 0,
 447                                          wndPtr->rectWindow.right - wndPtr->rectWindow.left,
 448                                          wndPtr->rectWindow.bottom - wndPtr->rectWindow.top );
 449                 }
 450
 451                 if( CombineRgn( wndPtr->hrgnUpdate,
 452                                 wndPtr->hrgnUpdate, hrgn, RGN_DIFF ) == NULLREGION )
 453                 {
 454                     DeleteObject( wndPtr->hrgnUpdate );
 455                     wndPtr->hrgnUpdate = 0;
 456                 }
 457             }
 458             else /* entire window or client depending on RDW_FRAME */
 459             {
 460                 wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 461
 462                 hrgn = 1;
 463                 if( flags & RDW_FRAME )
 464                 {
 465                     if( wndPtr->hrgnUpdate != 1 )
 466                         DeleteObject( wndPtr->hrgnUpdate );
 467                     wndPtr->hrgnUpdate = 0;
 468                 }
 469                 else /* by default r2 contains client rect in window coordinates */
 470                     goto rect2v;
 471             }
 472
 473             if (!wndPtr->hrgnUpdate &&  /* No more update region */
 474                 !(wndPtr->flags & WIN_INTERNAL_PAINT) )
 475                     QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 476         }
 477         if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT;
 478         if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 479     }
 480
 481     /* At this point hrgn contains new update region in window coordinates */
 482
 483     /* Set/clear internal paint flag */
 484
 485     if (flags & RDW_INTERNALPAINT)
 486     {
 487         if ( !wndPtr->hrgnUpdate && !(wndPtr->flags & WIN_INTERNAL_PAINT))
 488             QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 489         wndPtr->flags |= WIN_INTERNAL_PAINT;
 490     }
 491     else if (flags & RDW_NOINTERNALPAINT)
 492     {
 493         if ( !wndPtr->hrgnUpdate && (wndPtr->flags & WIN_INTERNAL_PAINT))
 494             QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 495         wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 496     }
 497
 498       /* Erase/update window */
 499
 500     if (flags & RDW_UPDATENOW)
 501     {
 502         if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */
 503             SendMessage16( hwnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 );
 504     }
 505     else if ((flags & RDW_ERASENOW) || (ex & RDW_EX_TOPFRAME))
 506     {
 507         hrgn2 = WIN_UpdateNCRgn( wndPtr, TRUE, (ex & RDW_EX_TOPFRAME) );
 508
 509         if( wndPtr->flags & WIN_NEEDS_ERASEBKGND )
 510         {
 511             HDC hdc;
 512
 513             if( hrgn2 > 1 )
 514             {
 515                 OffsetRgn( hrgn2, -pt.x, -pt.y );
 516                 GetRgnBox( hrgn2, &r2 );
 517             }
 518             else
 519             {
 520                 hrgn2 = CreateRectRgn( 0, 0, 0, 0 );
 521                 CombineRgn( hrgn2, wndPtr->hrgnUpdate, 0, RGN_COPY );
 522                 OffsetRgn( hrgn2, -pt.x, -pt.y );
 523             }
 524             hdc = GetDCEx( hwnd, hrgn2,
 525                                  DCX_INTERSECTRGN | DCX_USESTYLE |
 526                                  DCX_KEEPCLIPRGN | DCX_WINDOWPAINT |
 527                                  (bIcon ? DCX_WINDOW : 0) );
 528             if (hdc)
 529             {
 530                if (SendMessage16( hwnd, (bIcon) ? WM_ICONERASEBKGND
 531                                                 : WM_ERASEBKGND,
 532                                   (WPARAM16)hdc, 0 ))
 533                   wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 534                ReleaseDC( hwnd, hdc );
 535             }
 536         }
 537     }
 538
 539     if ( !IsWindow( hwnd ) )
 540     {
 541         WIN_ReleaseWndPtr(wndPtr);
 542         return TRUE;
 543     }
 544
 545       /* Recursively process children */
 546
 547     if (!(flags & RDW_NOCHILDREN) &&
 548         ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) &&
 549         !(wndPtr->dwStyle & WS_MINIMIZE) )
 550     {
 551         if( hrgnUpdate || rectUpdate )
 552         {
 553            if( hrgn2 <= 1 )
 554                hrgn2 = (ex & RDW_EX_USEHRGN) ? hrgnUpdate : 0;
 555
 556            if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 557            {
 558                 POINT   delta = pt;
 559
 560                 for (ppWnd = list; *ppWnd; ppWnd++)
 561                 {
 562                     WIN_UpdateWndPtr(&wndPtr,*ppWnd);
 563                     if (!IsWindow(wndPtr->hwndSelf)) continue;
 564                     if (wndPtr->dwStyle & WS_VISIBLE)
 565                     {
 566                         r.left = wndPtr->rectWindow.left + delta.x;
 567                         r.top = wndPtr->rectWindow.top + delta.y;
 568                         r.right = wndPtr->rectWindow.right + delta.x;
 569                         r.bottom = wndPtr->rectWindow.bottom + delta.y;
 570
 571                         pt.x = -r.left; pt.y = -r.top;
 572
 573                         hrgn2 = REGION_CropRgn( hrgn2, hrgn, &r, &pt );
 574
 575                         GetRgnBox( hrgn2, &r2 );
 576                         if( !IsRectEmpty( &r2 ) )
 577                         {
 578                             PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, hrgn2, flags,
 579                                                 RDW_EX_USEHRGN | RDW_EX_XYWINDOW );
 580                         }
 581                     }
 582                 }
 583                 WIN_ReleaseWinArray(list);
 584            }
 585         }
 586         else
 587         {
 588             if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 589             {
 590                 for (ppWnd = list; *ppWnd; ppWnd++)
 591                 {
 592                     WIN_UpdateWndPtr(&wndPtr,*ppWnd);
 593                     if (IsWindow( wndPtr->hwndSelf ))
 594                         PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags, 0 );
 595                 }
 596                 WIN_ReleaseWinArray(list);
 597             }
 598         }
 599
 600     }
 601
 602 END:
 603     if( hrgn2 > 1 && (hrgn2 != hrgnUpdate) )
 604         DeleteObject( hrgn2 );
 605     if( hrgn > 1 && (hrgn != hrgnUpdate) )
 606         DeleteObject( hrgn );
 607     WIN_ReleaseWndPtr(wndPtr);
 608     return TRUE;
 609 }
 610
 611
 612 /***********************************************************************
 613  *           RedrawWindow32    (USER32.426)
 614  */
 615 BOOL WINAPI RedrawWindow( HWND hwnd, const RECT *rectUpdate,
 616                               HRGN hrgnUpdate, UINT flags )
 617 {
 618     return PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 );
 619 }
 620
 621
 622 /***********************************************************************
 623  *           RedrawWindow16    (USER.290)
 624  */
 625 BOOL16 WINAPI RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate,
 626                               HRGN16 hrgnUpdate, UINT16 flags )
 627 {
 628     if (rectUpdate)
 629     {
 630         RECT r;
 631         CONV_RECT16TO32( rectUpdate, &r );
 632         return (BOOL16)RedrawWindow( (HWND)hwnd, &r, hrgnUpdate, flags );
 633     }
 634     return (BOOL16)PAINT_RedrawWindow( (HWND)hwnd, NULL,
 635                                        (HRGN)hrgnUpdate, flags, 0 );
 636 }
 637
 638
 639 /***********************************************************************
 640  *           UpdateWindow16   (USER.124)
 641  */
 642 void WINAPI UpdateWindow16( HWND16 hwnd )
 643 {
 644     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 645 }
 646
 647 /***********************************************************************
 648  *           UpdateWindow32   (USER32.567)
 649  */
 650 void WINAPI UpdateWindow( HWND hwnd )
 651 {
 652     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 653 }
 654
 655 /***********************************************************************
 656  *           InvalidateRgn16   (USER.126)
 657  */
 658 void WINAPI InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 659 {
 660     PAINT_RedrawWindow((HWND)hwnd, NULL, (HRGN)hrgn,
 661                        RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 662 }
 663
 664
 665 /***********************************************************************
 666  *           InvalidateRgn32   (USER32.329)
 667  */
 668 BOOL WINAPI InvalidateRgn( HWND hwnd, HRGN hrgn, BOOL erase )
 669 {
 670     return PAINT_RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 671 }
 672
 673
 674 /***********************************************************************
 675  *           InvalidateRect16   (USER.125)
 676  */
 677 void WINAPI InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase )
 678 {
 679     RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
 680 }
 681
 682
 683 /***********************************************************************
 684  *           InvalidateRect32   (USER32.328)
 685  */
 686 BOOL WINAPI InvalidateRect( HWND hwnd, const RECT *rect, BOOL erase )
 687 {
 688     return PAINT_RedrawWindow( hwnd, rect, 0,
 689                                RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 690 }
 691
 692
 693 /***********************************************************************
 694  *           ValidateRgn16   (USER.128)
 695  */
 696 void WINAPI ValidateRgn16( HWND16 hwnd, HRGN16 hrgn )
 697 {
 698     PAINT_RedrawWindow( (HWND)hwnd, NULL, (HRGN)hrgn,
 699                         RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 700 }
 701
 702
 703 /***********************************************************************
 704  *           ValidateRgn32   (USER32.572)
 705  */
 706 void WINAPI ValidateRgn( HWND hwnd, HRGN hrgn )
 707 {
 708     PAINT_RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 709 }
 710
 711
 712 /***********************************************************************
 713  *           ValidateRect16   (USER.127)
 714  */
 715 void WINAPI ValidateRect16( HWND16 hwnd, const RECT16 *rect )
 716 {
 717     RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN );
 718 }
 719
 720
 721 /***********************************************************************
 722  *           ValidateRect32   (USER32.571)
 723  */
 724 void WINAPI ValidateRect( HWND hwnd, const RECT *rect )
 725 {
 726     PAINT_RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 727 }
 728
 729
 730 /***********************************************************************
 731  *           GetUpdateRect16   (USER.190)
 732  */
 733 BOOL16 WINAPI GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase )
 734 {
 735     RECT r;
 736     BOOL16 ret;
 737
 738     if (!rect) return GetUpdateRect( hwnd, NULL, erase );
 739     ret = GetUpdateRect( hwnd, &r, erase );
 740     CONV_RECT32TO16( &r, rect );
 741     return ret;
 742 }
 743
 744
 745 /***********************************************************************
 746  *           GetUpdateRect32   (USER32.297)
 747  */
 748 BOOL WINAPI GetUpdateRect( HWND hwnd, LPRECT rect, BOOL erase )
 749 {
 750     BOOL retvalue;
 751     WND * wndPtr = WIN_FindWndPtr( hwnd );
 752     if (!wndPtr) return FALSE;
 753
 754     if (rect)
 755     {
 756         if (wndPtr->hrgnUpdate > 1)
 757         {
 758             HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
 759             if (GetUpdateRgn( hwnd, hrgn, erase ) == ERROR)
 760             {
 761                 retvalue = FALSE;
 762                 goto END;
 763             }
 764             GetRgnBox( hrgn, rect );
 765             DeleteObject( hrgn );
 766             if (wndPtr->class->style & CS_OWNDC)
 767             {
 768                 if (GetMapMode(wndPtr->dce->hDC) != MM_TEXT)
 769                 {
 770                     DPtoLP (wndPtr->dce->hDC, (LPPOINT)rect,  2);
 771                 }
 772             }
 773         }
 774         else
 775         if( wndPtr->hrgnUpdate == 1 )
 776         {
 777             GetClientRect( hwnd, rect );
 778             if (erase) RedrawWindow( hwnd, NULL, 0, RDW_FRAME | RDW_ERASENOW | RDW_NOCHILDREN );
 779         }
 780         else
 781             SetRectEmpty( rect );
 782     }
 783     retvalue = (wndPtr->hrgnUpdate >= 1);
 784 END:
 785     WIN_ReleaseWndPtr(wndPtr);
 786     return retvalue;
 787 }
 788
 789
 790 /***********************************************************************
 791  *           GetUpdateRgn16   (USER.237)
 792  */
 793 INT16 WINAPI GetUpdateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 794 {
 795     return GetUpdateRgn( hwnd, hrgn, erase );
 796 }
 797
 798
 799 /***********************************************************************
 800  *           GetUpdateRgn    (USER32.298)
 801  */
 802 INT WINAPI GetUpdateRgn( HWND hwnd, HRGN hrgn, BOOL erase )
 803 {
 804     INT retval;
 805     WND * wndPtr = WIN_FindWndPtr( hwnd );
 806     if (!wndPtr) return ERROR;
 807
 808     if (wndPtr->hrgnUpdate == 0)
 809     {
 810         SetRectRgn( hrgn, 0, 0, 0, 0 );
 811         retval = NULLREGION;
 812         goto END;
 813     }
 814     else
 815     if (wndPtr->hrgnUpdate == 1)
 816     {
 817         SetRectRgn( hrgn, 0, 0, wndPtr->rectClient.right - wndPtr->rectClient.left,
 818                                 wndPtr->rectClient.bottom - wndPtr->rectClient.top );
 819         retval = SIMPLEREGION;
 820     }
 821     else
 822     {
 823         retval = CombineRgn( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY );
 824         OffsetRgn( hrgn, wndPtr->rectWindow.left - wndPtr->rectClient.left,
 825                          wndPtr->rectWindow.top - wndPtr->rectClient.top );
 826     }
 827     if (erase) RedrawWindow( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN );
 828 END:
 829     WIN_ReleaseWndPtr(wndPtr);
 830     return retval;
 831 }
 832
 833
 834 /***********************************************************************
 835  *           ExcludeUpdateRgn16   (USER.238)
 836  */
 837 INT16 WINAPI ExcludeUpdateRgn16( HDC16 hdc, HWND16 hwnd )
 838 {
 839     return ExcludeUpdateRgn( hdc, hwnd );
 840 }
 841
 842
 843 /***********************************************************************
 844  *           ExcludeUpdateRgn32   (USER32.195)
 845  */
 846 INT WINAPI ExcludeUpdateRgn( HDC hdc, HWND hwnd )
 847 {
 848     RECT rect;
 849     WND * wndPtr;
 850
 851     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR;
 852
 853     if (wndPtr->hrgnUpdate)
 854     {
 855         INT ret;
 856         HRGN hrgn = CreateRectRgn(wndPtr->rectWindow.left - wndPtr->rectClient.left,
 857                                       wndPtr->rectWindow.top - wndPtr->rectClient.top,
 858                                       wndPtr->rectWindow.right - wndPtr->rectClient.left,
 859                                       wndPtr->rectWindow.bottom - wndPtr->rectClient.top);
 860         if( wndPtr->hrgnUpdate > 1 )
 861         {
 862             CombineRgn(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY);
 863             OffsetRgn(hrgn, wndPtr->rectWindow.left - wndPtr->rectClient.left,
 864                             wndPtr->rectWindow.top - wndPtr->rectClient.top );
 865         }
 866
 867         /* do ugly coordinate translations in dce.c */
 868
 869         ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn );
 870         DeleteObject( hrgn );
 871         WIN_ReleaseWndPtr(wndPtr);
 872         return ret;
 873     }
 874     WIN_ReleaseWndPtr(wndPtr);
 875     return GetClipBox( hdc, &rect );
 876 }
 877
 878