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