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 "win.h"
  13 #include "queue.h"
  14 #include "gdi.h"
  15 #include "dce.h"
  16 #include "heap.h"
  17 #include "stddebug.h"
  18 /* #define DEBUG_WIN */
  19 #include "debug.h"
  20
  21   /* Last CTLCOLOR id */
  22 #define CTLCOLOR_MAX   CTLCOLOR_STATIC
  23
  24 /***********************************************************************
  25  *           WIN_UpdateNCArea
  26  *
  27  */
  28 void WIN_UpdateNCArea(WND* wnd, BOOL32 bUpdate)
  29 {
  30     POINT16 pt = {0, 0};
  31     HRGN32 hClip = 1;
  32
  33     dprintf_nonclient(stddeb,"NCUpdate: hwnd %04x, hrgnUpdate %04x\n",
  34                       wnd->hwndSelf, wnd->hrgnUpdate );
  35
  36     /* desktop window doesn't have nonclient area */
  37     if(wnd == WIN_GetDesktop())
  38     {
  39         wnd->flags &= ~WIN_NEEDS_NCPAINT;
  40         return;
  41     }
  42
  43     if( wnd->hrgnUpdate > 1 )
  44     {
  45         ClientToScreen16(wnd->hwndSelf, &pt);
  46
  47         hClip = CreateRectRgn32( 0, 0, 0, 0 );
  48         if (!CombineRgn32( hClip, wnd->hrgnUpdate, 0, RGN_COPY ))
  49         {
  50             DeleteObject32(hClip);
  51             hClip = 1;
  52         }
  53         else
  54             OffsetRgn32( hClip, pt.x, pt.y );
  55
  56         if (bUpdate)
  57         {
  58             /* exclude non-client area from update region */
  59             HRGN32 hrgn = CreateRectRgn32( 0, 0,
  60                                  wnd->rectClient.right - wnd->rectClient.left,
  61                                  wnd->rectClient.bottom - wnd->rectClient.top);
  62
  63             if (hrgn && (CombineRgn32( wnd->hrgnUpdate, wnd->hrgnUpdate,
  64                                        hrgn, RGN_AND) == NULLREGION))
  65             {
  66                 DeleteObject32( wnd->hrgnUpdate );
  67                 wnd->hrgnUpdate = 1;
  68             }
  69
  70             DeleteObject32( hrgn );
  71         }
  72     }
  73
  74     wnd->flags &= ~WIN_NEEDS_NCPAINT;
  75
  76     if ((wnd->hwndSelf == GetActiveWindow32()) &&
  77         !(wnd->flags & WIN_NCACTIVATED))
  78     {
  79         wnd->flags |= WIN_NCACTIVATED;
  80         if( hClip > 1) DeleteObject32( hClip );
  81         hClip = 1;
  82     }
  83
  84     if (hClip) SendMessage16( wnd->hwndSelf, WM_NCPAINT, hClip, 0L );
  85
  86     if (hClip > 1) DeleteObject32( hClip );
  87 }
  88
  89
  90 /***********************************************************************
  91  *           BeginPaint16    (USER.39)
  92  */
  93 HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
  94 {
  95     BOOL32 bIcon;
  96     HRGN32 hrgnUpdate;
  97     WND *wndPtr = WIN_FindWndPtr( hwnd );
  98     if (!wndPtr) return 0;
  99
 100     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 101
 102     wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT;
 103
 104     if (wndPtr->flags & WIN_NEEDS_NCPAINT) WIN_UpdateNCArea( wndPtr, TRUE );
 105
 106     if (((hrgnUpdate = wndPtr->hrgnUpdate) != 0) ||
 107         (wndPtr->flags & WIN_INTERNAL_PAINT))
 108         QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 109
 110     wndPtr->hrgnUpdate = 0;
 111     wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 112
 113     HideCaret32( hwnd );
 114
 115     dprintf_win(stddeb,"hrgnUpdate = %04x, ", hrgnUpdate);
 116
 117     /* When bIcon is TRUE hrgnUpdate is automatically in window coordinates
 118      * (because rectClient == rectWindow for WS_MINIMIZE windows).
 119      */
 120
 121     if (wndPtr->class->style & CS_PARENTDC)
 122     {
 123         /* Don't clip the output to the update region for CS_PARENTDC window */
 124         if(hrgnUpdate > 1)
 125             DeleteObject32(hrgnUpdate);
 126         lps->hdc = GetDCEx16( hwnd, 0, DCX_WINDOWPAINT | DCX_USESTYLE |
 127                               (bIcon ? DCX_WINDOW : 0) );
 128     }
 129     else
 130     {
 131         lps->hdc = GetDCEx16(hwnd, hrgnUpdate, DCX_INTERSECTRGN |
 132                              DCX_WINDOWPAINT | DCX_USESTYLE |
 133                              (bIcon ? DCX_WINDOW : 0) );
 134     }
 135
 136     dprintf_win(stddeb,"hdc = %04x\n", lps->hdc);
 137
 138     if (!lps->hdc)
 139     {
 140         fprintf(stderr, "GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd);
 141         return 0;
 142     }
 143
 144     GetRgnBox16( InquireVisRgn(lps->hdc), &lps->rcPaint );
 145
 146 dprintf_win(stddeb,"box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top,
 147                     lps->rcPaint.right, lps->rcPaint.bottom );
 148
 149     DPtoLP16( lps->hdc, (LPPOINT16)&lps->rcPaint, 2 );
 150
 151     if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 152     {
 153         wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 154         lps->fErase = !SendMessage16(hwnd, (bIcon) ? WM_ICONERASEBKGND
 155                                                    : WM_ERASEBKGND,
 156                                      (WPARAM16)lps->hdc, 0 );
 157     }
 158     else lps->fErase = TRUE;
 159
 160     return lps->hdc;
 161 }
 162
 163
 164 /***********************************************************************
 165  *           BeginPaint32    (USER32.9)
 166  */
 167 HDC32 WINAPI BeginPaint32( HWND32 hwnd, PAINTSTRUCT32 *lps )
 168 {
 169     PAINTSTRUCT16 ps;
 170
 171     BeginPaint16( hwnd, &ps );
 172     lps->hdc            = (HDC32)ps.hdc;
 173     lps->fErase         = ps.fErase;
 174     lps->rcPaint.top    = ps.rcPaint.top;
 175     lps->rcPaint.left   = ps.rcPaint.left;
 176     lps->rcPaint.right  = ps.rcPaint.right;
 177     lps->rcPaint.bottom = ps.rcPaint.bottom;
 178     lps->fRestore       = ps.fRestore;
 179     lps->fIncUpdate     = ps.fIncUpdate;
 180     return lps->hdc;
 181 }
 182
 183
 184 /***********************************************************************
 185  *           EndPaint16    (USER.40)
 186  */
 187 BOOL16 WINAPI EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps )
 188 {
 189     ReleaseDC16( hwnd, lps->hdc );
 190     ShowCaret32( hwnd );
 191     return TRUE;
 192 }
 193
 194
 195 /***********************************************************************
 196  *           EndPaint32    (USER32.175)
 197  */
 198 BOOL32 WINAPI EndPaint32( HWND32 hwnd, const PAINTSTRUCT32 *lps )
 199 {
 200     ReleaseDC32( hwnd, lps->hdc );
 201     ShowCaret32( hwnd );
 202     return TRUE;
 203 }
 204
 205
 206 /***********************************************************************
 207  *           FillWindow    (USER.324)
 208  */
 209 void WINAPI FillWindow( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush )
 210 {
 211     RECT16 rect;
 212     GetClientRect16( hwnd, &rect );
 213     DPtoLP16( hdc, (LPPOINT16)&rect, 2 );
 214     PaintRect( hwndParent, hwnd, hdc, hbrush, &rect );
 215 }
 216
 217
 218 /***********************************************************************
 219  *           PAINT_GetControlBrush
 220  */
 221 static HBRUSH16 PAINT_GetControlBrush( HWND32 hParent, HWND32 hWnd, HDC16 hDC, UINT16 ctlType )
 222 {
 223     HBRUSH16 bkgBrush = (HBRUSH16)SendMessage32A( hParent, WM_CTLCOLORMSGBOX + ctlType,
 224                                                              (WPARAM32)hDC, (LPARAM)hWnd );
 225     if( !IsGDIObject(bkgBrush) )
 226         bkgBrush = DEFWND_ControlColor( hDC, ctlType );
 227     return bkgBrush;
 228 }
 229
 230
 231 /***********************************************************************
 232  *           PaintRect    (USER.325)
 233  */
 234 void WINAPI PaintRect( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc,
 235                        HBRUSH16 hbrush, const RECT16 *rect)
 236 {
 237     if( hbrush <= CTLCOLOR_MAX )
 238         if( hwndParent )
 239             hbrush = PAINT_GetControlBrush( hwndParent, hwnd, hdc, (UINT16)hbrush );
 240         else
 241             return;
 242     if( hbrush )
 243         FillRect16( hdc, rect, hbrush );
 244 }
 245
 246
 247 /***********************************************************************
 248  *           GetControlBrush    (USER.326)
 249  */
 250 HBRUSH16 WINAPI GetControlBrush( HWND16 hwnd, HDC16 hdc, UINT16 ctlType )
 251 {
 252     WND* wndPtr = WIN_FindWndPtr( hwnd );
 253
 254     if((ctlType <= CTLCOLOR_MAX) && wndPtr )
 255     {
 256         WND* parent;
 257         if( wndPtr->dwStyle & WS_POPUP ) parent = wndPtr->owner;
 258         else parent = wndPtr->parent;
 259         if( !parent ) parent = wndPtr;
 260         return (HBRUSH16)PAINT_GetControlBrush( parent->hwndSelf, hwnd, hdc, ctlType );
 261     }
 262     return (HBRUSH16)0;
 263 }
 264
 265
 266 /***********************************************************************
 267  *           PAINT_RedrawWindow
 268  *
 269  * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask
 270  * SendMessage() calls. This is a comment inside DefWindowProc() source
 271  * from 16-bit SDK:
 272  *
 273  *   This message avoids lots of inter-app message traffic
 274  *   by switching to the other task and continuing the
 275  *   recursion there.
 276  *
 277  * wParam         = flags
 278  * LOWORD(lParam) = hrgnClip
 279  * HIWORD(lParam) = hwndSkip  (not used; always NULL)
 280  *
 281  * All in all, a prime candidate for a rewrite.
 282  */
 283 BOOL32 PAINT_RedrawWindow( HWND32 hwnd, const RECT32 *rectUpdate,
 284                            HRGN32 hrgnUpdate, UINT32 flags, UINT32 control )
 285 {
 286     BOOL32 bIcon;
 287     HRGN32 hrgn;
 288     RECT32 rectClient;
 289     WND* wndPtr;
 290     WND **list, **ppWnd;
 291
 292     if (!hwnd) hwnd = GetDesktopWindow32();
 293     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
 294     if (!WIN_IsWindowDrawable( wndPtr, !(flags & RDW_FRAME) ) )
 295         return TRUE;  /* No redraw needed */
 296
 297     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 298     if (rectUpdate)
 299     {
 300         dprintf_win(stddeb, "RedrawWindow: %04x %d,%d-%d,%d %04x flags=%04x\n",
 301                     hwnd, rectUpdate->left, rectUpdate->top,
 302                     rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags );
 303     }
 304     else
 305     {
 306         dprintf_win(stddeb, "RedrawWindow: %04x NULL %04x flags=%04x\n",
 307                      hwnd, hrgnUpdate, flags);
 308     }
 309
 310     GetClientRect32( hwnd, &rectClient );
 311
 312     if (flags & RDW_INVALIDATE)  /* Invalidate */
 313     {
 314         int rgnNotEmpty = COMPLEXREGION;
 315
 316         if (wndPtr->hrgnUpdate > 1)  /* Is there already an update region? */
 317         {
 318             if ((hrgn = hrgnUpdate) == 0)
 319                 hrgn = CreateRectRgnIndirect32( rectUpdate ? rectUpdate :
 320                                                 &rectClient );
 321             rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 322                                         hrgn, RGN_OR );
 323             if (!hrgnUpdate) DeleteObject32( hrgn );
 324         }
 325         else  /* No update region yet */
 326         {
 327             if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 328                 QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 329             if (hrgnUpdate)
 330             {
 331                 wndPtr->hrgnUpdate = CreateRectRgn32( 0, 0, 0, 0 );
 332                 rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, hrgnUpdate,
 333                                             0, RGN_COPY );
 334             }
 335             else wndPtr->hrgnUpdate = CreateRectRgnIndirect32( rectUpdate ?
 336                                                     rectUpdate : &rectClient );
 337         }
 338
 339         if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT;
 340
 341         /* restrict update region to client area (FIXME: correct?) */
 342         if (wndPtr->hrgnUpdate)
 343         {
 344             HRGN32 clientRgn = CreateRectRgnIndirect32( &rectClient );
 345             rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, clientRgn,
 346                                         wndPtr->hrgnUpdate, RGN_AND );
 347             DeleteObject32( clientRgn );
 348         }
 349
 350         /* check for bogus update region */
 351         if ( rgnNotEmpty == NULLREGION )
 352            {
 353              wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 354              DeleteObject32( wndPtr->hrgnUpdate );
 355              wndPtr->hrgnUpdate=0;
 356              if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 357                    QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 358            }
 359         else
 360              if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
 361         flags |= RDW_FRAME;  /* Force children frame invalidation */
 362     }
 363     else if (flags & RDW_VALIDATE)  /* Validate */
 364     {
 365           /* We need an update region in order to validate anything */
 366         if (wndPtr->hrgnUpdate > 1)
 367         {
 368             if (!hrgnUpdate && !rectUpdate)
 369             {
 370                   /* Special case: validate everything */
 371                 DeleteObject32( wndPtr->hrgnUpdate );
 372                 wndPtr->hrgnUpdate = 0;
 373             }
 374             else
 375             {
 376                 if ((hrgn = hrgnUpdate) == 0)
 377                     hrgn = CreateRectRgnIndirect32( rectUpdate );
 378                 if (CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 379                                   hrgn, RGN_DIFF ) == NULLREGION)
 380                 {
 381                     DeleteObject32( wndPtr->hrgnUpdate );
 382                     wndPtr->hrgnUpdate = 0;
 383                 }
 384                 if (!hrgnUpdate) DeleteObject32( hrgn );
 385             }
 386             if (!wndPtr->hrgnUpdate)  /* No more update region */
 387                 if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 388                     QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 389         }
 390         if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT;
 391         if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 392     }
 393
 394       /* Set/clear internal paint flag */
 395
 396     if (flags & RDW_INTERNALPAINT)
 397     {
 398         if ( wndPtr->hrgnUpdate <= 1 && !(wndPtr->flags & WIN_INTERNAL_PAINT))
 399             QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 400         wndPtr->flags |= WIN_INTERNAL_PAINT;
 401     }
 402     else if (flags & RDW_NOINTERNALPAINT)
 403     {
 404         if ( wndPtr->hrgnUpdate <= 1 && (wndPtr->flags & WIN_INTERNAL_PAINT))
 405             QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 406         wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 407     }
 408
 409       /* Erase/update window */
 410
 411     if (flags & RDW_UPDATENOW)
 412     {
 413         if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */
 414             SendMessage16( hwnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 );
 415     }
 416     else if (flags & RDW_ERASENOW)
 417     {
 418         if (wndPtr->flags & WIN_NEEDS_NCPAINT)
 419             WIN_UpdateNCArea( wndPtr, FALSE);
 420
 421         if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 422         {
 423             HDC32 hdc = GetDCEx32( hwnd, wndPtr->hrgnUpdate,
 424                                    DCX_INTERSECTRGN | DCX_USESTYLE |
 425                                    DCX_KEEPCLIPRGN | DCX_WINDOWPAINT |
 426                                    (bIcon ? DCX_WINDOW : 0) );
 427             if (hdc)
 428             {
 429                if (SendMessage16( hwnd, (bIcon) ? WM_ICONERASEBKGND
 430                                                 : WM_ERASEBKGND,
 431                                   (WPARAM16)hdc, 0 ))
 432                   wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 433                ReleaseDC32( hwnd, hdc );
 434             }
 435         }
 436     }
 437
 438       /* Recursively process children */
 439
 440     if (!(flags & RDW_NOCHILDREN) &&
 441         ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) &&
 442         !(wndPtr->dwStyle & WS_MINIMIZE) )
 443     {
 444         if ( hrgnUpdate || rectUpdate )
 445         {
 446            if (!(hrgn = CreateRectRgn32( 0, 0, 0, 0 ))) return TRUE;
 447            if( !hrgnUpdate )
 448            {
 449                 control |= (RDW_C_DELETEHRGN | RDW_C_USEHRGN);
 450                 if( !(hrgnUpdate = CreateRectRgnIndirect32( rectUpdate )) )
 451                 {
 452                     DeleteObject32( hrgn );
 453                     return TRUE;
 454                 }
 455            }
 456            if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 457            {
 458                 for (ppWnd = list; *ppWnd; ppWnd++)
 459                 {
 460                     wndPtr = *ppWnd;
 461                     if (!IsWindow32(wndPtr->hwndSelf)) continue;
 462                     if (wndPtr->dwStyle & WS_VISIBLE)
 463                     {
 464                         SetRectRgn32( hrgn,
 465                                 wndPtr->rectWindow.left, wndPtr->rectWindow.top,
 466                                 wndPtr->rectWindow.right, wndPtr->rectWindow.bottom );
 467                         if (CombineRgn32( hrgn, hrgn, hrgnUpdate, RGN_AND ))
 468                         {
 469                             OffsetRgn32( hrgn, -wndPtr->rectClient.left,
 470                                         -wndPtr->rectClient.top );
 471                             PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, hrgn, flags,
 472                                          RDW_C_USEHRGN );
 473                         }
 474                     }
 475                 }
 476                 HeapFree( SystemHeap, 0, list );
 477            }
 478            DeleteObject32( hrgn );
 479            if (control & RDW_C_DELETEHRGN) DeleteObject32( hrgnUpdate );
 480         }
 481         else
 482         {
 483             if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 484             {
 485                 for (ppWnd = list; *ppWnd; ppWnd++)
 486                 {
 487                     wndPtr = *ppWnd;
 488                     if (IsWindow32( wndPtr->hwndSelf ))
 489                         PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags, 0 );
 490                 }
 491                 HeapFree( SystemHeap, 0, list );
 492             }
 493         }
 494
 495     }
 496     return TRUE;
 497 }
 498
 499
 500 /***********************************************************************
 501  *           RedrawWindow32    (USER32.425)
 502  */
 503 BOOL32 WINAPI RedrawWindow32( HWND32 hwnd, const RECT32 *rectUpdate,
 504                               HRGN32 hrgnUpdate, UINT32 flags )
 505 {
 506     return PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 );
 507 }
 508
 509
 510 /***********************************************************************
 511  *           RedrawWindow16    (USER.290)
 512  */
 513 BOOL16 WINAPI RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate,
 514                               HRGN16 hrgnUpdate, UINT16 flags )
 515 {
 516     if (rectUpdate)
 517     {
 518         RECT32 r;
 519         CONV_RECT16TO32( rectUpdate, &r );
 520         return (BOOL16)RedrawWindow32( (HWND32)hwnd, &r, hrgnUpdate, flags );
 521     }
 522     return (BOOL16)PAINT_RedrawWindow( (HWND32)hwnd, NULL,
 523                                        (HRGN32)hrgnUpdate, flags, 0 );
 524 }
 525
 526
 527 /***********************************************************************
 528  *           UpdateWindow16   (USER.124)
 529  */
 530 void WINAPI UpdateWindow16( HWND16 hwnd )
 531 {
 532     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 533 }
 534
 535 /***********************************************************************
 536  *           UpdateWindow32   (USER32.566)
 537  */
 538 void WINAPI UpdateWindow32( HWND32 hwnd )
 539 {
 540     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 541 }
 542
 543 /***********************************************************************
 544  *           InvalidateRgn16   (USER.126)
 545  */
 546 void WINAPI InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 547 {
 548     PAINT_RedrawWindow((HWND32)hwnd, NULL, (HRGN32)hrgn,
 549                        RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 550 }
 551
 552
 553 /***********************************************************************
 554  *           InvalidateRgn32   (USER32.328)
 555  */
 556 void WINAPI InvalidateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 557 {
 558     PAINT_RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 559 }
 560
 561
 562 /***********************************************************************
 563  *           InvalidateRect16   (USER.125)
 564  */
 565 void WINAPI InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase )
 566 {
 567     RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
 568 }
 569
 570
 571 /***********************************************************************
 572  *           InvalidateRect32   (USER32.327)
 573  */
 574 void WINAPI InvalidateRect32( HWND32 hwnd, const RECT32 *rect, BOOL32 erase )
 575 {
 576     PAINT_RedrawWindow( hwnd, rect, 0,
 577                         RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 578 }
 579
 580
 581 /***********************************************************************
 582  *           ValidateRgn16   (USER.128)
 583  */
 584 void WINAPI ValidateRgn16( HWND16 hwnd, HRGN16 hrgn )
 585 {
 586     PAINT_RedrawWindow( (HWND32)hwnd, NULL, (HRGN32)hrgn,
 587                         RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 588 }
 589
 590
 591 /***********************************************************************
 592  *           ValidateRgn32   (USER32.571)
 593  */
 594 void WINAPI ValidateRgn32( HWND32 hwnd, HRGN32 hrgn )
 595 {
 596     PAINT_RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 597 }
 598
 599
 600 /***********************************************************************
 601  *           ValidateRect16   (USER.127)
 602  */
 603 void WINAPI ValidateRect16( HWND16 hwnd, const RECT16 *rect )
 604 {
 605     RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN );
 606 }
 607
 608
 609 /***********************************************************************
 610  *           ValidateRect32   (USER32.570)
 611  */
 612 void WINAPI ValidateRect32( HWND32 hwnd, const RECT32 *rect )
 613 {
 614     PAINT_RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 615 }
 616
 617
 618 /***********************************************************************
 619  *           GetUpdateRect16   (USER.190)
 620  */
 621 BOOL16 WINAPI GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase )
 622 {
 623     RECT32 r;
 624     BOOL16 ret;
 625
 626     if (!rect) return GetUpdateRect32( hwnd, NULL, erase );
 627     ret = GetUpdateRect32( hwnd, &r, erase );
 628     CONV_RECT32TO16( &r, rect );
 629     return ret;
 630 }
 631
 632
 633 /***********************************************************************
 634  *           GetUpdateRect32   (USER32.296)
 635  */
 636 BOOL32 WINAPI GetUpdateRect32( HWND32 hwnd, LPRECT32 rect, BOOL32 erase )
 637 {
 638     WND * wndPtr = WIN_FindWndPtr( hwnd );
 639     if (!wndPtr) return FALSE;
 640
 641     if (rect)
 642     {
 643         if (wndPtr->hrgnUpdate > 1)
 644         {
 645             HRGN32 hrgn = CreateRectRgn32( 0, 0, 0, 0 );
 646             if (GetUpdateRgn32( hwnd, hrgn, erase ) == ERROR) return FALSE;
 647             GetRgnBox32( hrgn, rect );
 648             DeleteObject32( hrgn );
 649         }
 650         else SetRectEmpty32( rect );
 651     }
 652     return (wndPtr->hrgnUpdate > 1);
 653 }
 654
 655
 656 /***********************************************************************
 657  *           GetUpdateRgn16   (USER.237)
 658  */
 659 INT16 WINAPI GetUpdateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 660 {
 661     return GetUpdateRgn32( hwnd, hrgn, erase );
 662 }
 663
 664
 665 /***********************************************************************
 666  *           GetUpdateRgn32   (USER32.297)
 667  */
 668 INT32 WINAPI GetUpdateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase )
 669 {
 670     INT32 retval;
 671     WND * wndPtr = WIN_FindWndPtr( hwnd );
 672     if (!wndPtr) return ERROR;
 673
 674     if (wndPtr->hrgnUpdate <= 1)
 675     {
 676         SetRectRgn32( hrgn, 0, 0, 0, 0 );
 677         return NULLREGION;
 678     }
 679     retval = CombineRgn32( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY );
 680     if (erase) RedrawWindow32( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN );
 681     return retval;
 682 }
 683
 684
 685 /***********************************************************************
 686  *           ExcludeUpdateRgn16   (USER.238)
 687  */
 688 INT16 WINAPI ExcludeUpdateRgn16( HDC16 hdc, HWND16 hwnd )
 689 {
 690     return ExcludeUpdateRgn32( hdc, hwnd );
 691 }
 692
 693
 694 /***********************************************************************
 695  *           ExcludeUpdateRgn32   (USER32.194)
 696  */
 697 INT32 WINAPI ExcludeUpdateRgn32( HDC32 hdc, HWND32 hwnd )
 698 {
 699     RECT32 rect;
 700     WND * wndPtr;
 701
 702     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR;
 703
 704     if (wndPtr->hrgnUpdate)
 705     {
 706         INT32 ret;
 707         HRGN32 hrgn = CreateRectRgn32(wndPtr->rectWindow.left - wndPtr->rectClient.left,
 708                                       wndPtr->rectWindow.top - wndPtr->rectClient.top,
 709                                       wndPtr->rectClient.right - wndPtr->rectClient.left,
 710                                       wndPtr->rectClient.bottom - wndPtr->rectClient.top);
 711         if( wndPtr->hrgnUpdate > 1 )
 712             CombineRgn32(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY);
 713
 714         /* do ugly coordinate translations in dce.c */
 715
 716         ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn );
 717         DeleteObject32( hrgn );
 718         return ret;
 719     }
 720     return GetClipBox32( hdc, &rect );
 721 }
 722
 723