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 #include "wine/winuser16.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, BOOL bUpdate)
  27 {
  28     POINT16 pt = {0, 0};
  29     HRGN 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         WIN_ReleaseDesktop();
  39         return;
  40     }
  41     WIN_ReleaseDesktop();
  42
  43     if( wnd->hrgnUpdate > 1 )
  44     {
  45         ClientToScreen16(wnd->hwndSelf, &pt);
  46
  47         hClip = CreateRectRgn( 0, 0, 0, 0 );
  48         if (!CombineRgn( hClip, wnd->hrgnUpdate, 0, RGN_COPY ))
  49         {
  50             DeleteObject(hClip);
  51             hClip = 1;
  52         }
  53         else
  54             OffsetRgn( hClip, pt.x, pt.y );
  55
  56         if (bUpdate)
  57         {
  58             /* exclude non-client area from update region */
  59             HRGN hrgn = CreateRectRgn( 0, 0,
  60                                  wnd->rectClient.right - wnd->rectClient.left,
  61                                  wnd->rectClient.bottom - wnd->rectClient.top);
  62
  63             if (hrgn && (CombineRgn( wnd->hrgnUpdate, wnd->hrgnUpdate,
  64                                        hrgn, RGN_AND) == NULLREGION))
  65             {
  66                 DeleteObject( wnd->hrgnUpdate );
  67                 wnd->hrgnUpdate = 1;
  68             }
  69
  70             DeleteObject( hrgn );
  71         }
  72     }
  73
  74     wnd->flags &= ~WIN_NEEDS_NCPAINT;
  75
  76     if ((wnd->hwndSelf == GetActiveWindow()) &&
  77         !(wnd->flags & WIN_NCACTIVATED))
  78     {
  79         wnd->flags |= WIN_NCACTIVATED;
  80         if( hClip > 1) DeleteObject( hClip );
  81         hClip = 1;
  82     }
  83
  84     if (hClip) SendMessage16( wnd->hwndSelf, WM_NCPAINT, hClip, 0L );
  85
  86     if (hClip > 1) DeleteObject( hClip );
  87 }
  88
  89
  90 /***********************************************************************
  91  *           BeginPaint16    (USER.39)
  92  */
  93 HDC16 WINAPI BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps )
  94 {
  95     BOOL bIcon;
  96     HRGN 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     HideCaret( hwnd );
 114
 115     TRACE(win,"hrgnUpdate = %04x, \n", 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             DeleteObject(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     TRACE(win,"hdc = %04x\n", lps->hdc);
 137
 138     if (!lps->hdc)
 139     {
 140         WARN(win, "GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd);
 141         WIN_ReleaseWndPtr(wndPtr);
 142         return 0;
 143     }
 144
 145     GetClipBox16( lps->hdc, &lps->rcPaint );
 146
 147 TRACE(win,"box = (%i,%i - %i,%i)\n", lps->rcPaint.left, lps->rcPaint.top,
 148                     lps->rcPaint.right, lps->rcPaint.bottom );
 149
 150     if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 151     {
 152         wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 153         lps->fErase = !SendMessage16(hwnd, (bIcon) ? WM_ICONERASEBKGND
 154                                                    : WM_ERASEBKGND,
 155                                      (WPARAM16)lps->hdc, 0 );
 156     }
 157     else lps->fErase = TRUE;
 158
 159     WIN_ReleaseWndPtr(wndPtr);
 160     return lps->hdc;
 161 }
 162
 163
 164 /***********************************************************************
 165  *           BeginPaint32    (USER32.10)
 166  */
 167 HDC WINAPI BeginPaint( HWND hwnd, PAINTSTRUCT *lps )
 168 {
 169     PAINTSTRUCT16 ps;
 170
 171     BeginPaint16( hwnd, &ps );
 172     lps->hdc            = (HDC)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     ShowCaret( hwnd );
 191     return TRUE;
 192 }
 193
 194
 195 /***********************************************************************
 196  *           EndPaint32    (USER32.176)
 197  */
 198 BOOL WINAPI EndPaint( HWND hwnd, const PAINTSTRUCT *lps )
 199 {
 200     ReleaseDC( hwnd, lps->hdc );
 201     ShowCaret( hwnd );
 202     return TRUE;
 203 }
 204
 205
 206 /***********************************************************************
 207  *           FillWindow    (USER.324)
 208  */
 209 void WINAPI FillWindow16( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush )
 210 {
 211     RECT16 rect;
 212     GetClientRect16( hwnd, &rect );
 213     DPtoLP16( hdc, (LPPOINT16)&rect, 2 );
 214     PaintRect16( hwndParent, hwnd, hdc, hbrush, &rect );
 215 }
 216
 217
 218 /***********************************************************************
 219  *           PAINT_GetControlBrush
 220  */
 221 static HBRUSH16 PAINT_GetControlBrush( HWND hParent, HWND hWnd, HDC16 hDC, UINT16 ctlType )
 222 {
 223     HBRUSH16 bkgBrush = (HBRUSH16)SendMessageA( hParent, WM_CTLCOLORMSGBOX + ctlType,
 224                                                              (WPARAM)hDC, (LPARAM)hWnd );
 225     if( !IsGDIObject16(bkgBrush) )
 226         bkgBrush = DEFWND_ControlColor( hDC, ctlType );
 227     return bkgBrush;
 228 }
 229
 230
 231 /***********************************************************************
 232  *           PaintRect    (USER.325)
 233  */
 234 void WINAPI PaintRect16( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc,
 235                        HBRUSH16 hbrush, const RECT16 *rect)
 236 {
 237     if( hbrush <= CTLCOLOR_MAX )
 238     {
 239         if( hwndParent )
 240             hbrush = PAINT_GetControlBrush( hwndParent, hwnd, hdc, (UINT16)hbrush );
 241         else
 242             return;
 243     }
 244     if( hbrush )
 245         FillRect16( hdc, rect, hbrush );
 246 }
 247
 248
 249 /***********************************************************************
 250  *           GetControlBrush    (USER.326)
 251  */
 252 HBRUSH16 WINAPI GetControlBrush16( HWND16 hwnd, HDC16 hdc, UINT16 ctlType )
 253 {
 254     WND* wndPtr = WIN_FindWndPtr( hwnd );
 255     HBRUSH16 retvalue;
 256
 257     if((ctlType <= CTLCOLOR_MAX) && wndPtr )
 258     {
 259         WND* parent;
 260         if( wndPtr->dwStyle & WS_POPUP ) parent = WIN_LockWndPtr(wndPtr->owner);
 261         else parent = WIN_LockWndPtr(wndPtr->parent);
 262         if( !parent ) parent = wndPtr;
 263         retvalue = (HBRUSH16)PAINT_GetControlBrush( parent->hwndSelf, hwnd, hdc, ctlType );
 264         WIN_ReleaseWndPtr(parent);
 265         goto END;
 266     }
 267     retvalue = (HBRUSH16)0;
 268 END:
 269     WIN_ReleaseWndPtr(wndPtr);
 270     return retvalue;
 271     }
 272
 273
 274 /***********************************************************************
 275  *           PAINT_RedrawWindow
 276  *
 277  * FIXME: Windows uses WM_SYNCPAINT to cut down the number of intertask
 278  * SendMessage() calls. This is a comment inside DefWindowProc() source
 279  * from 16-bit SDK:
 280  *
 281  *   This message avoids lots of inter-app message traffic
 282  *   by switching to the other task and continuing the
 283  *   recursion there.
 284  *
 285  * wParam         = flags
 286  * LOWORD(lParam) = hrgnClip
 287  * HIWORD(lParam) = hwndSkip  (not used; always NULL)
 288  *
 289  * All in all, a prime candidate for a rewrite.
 290  */
 291 BOOL PAINT_RedrawWindow( HWND hwnd, const RECT *rectUpdate,
 292                            HRGN hrgnUpdate, UINT flags, UINT control )
 293 {
 294     BOOL bIcon;
 295     HRGN hrgn;
 296     RECT rectClient;
 297     WND* wndPtr;
 298     WND **list, **ppWnd;
 299
 300     if (!hwnd) hwnd = GetDesktopWindow();
 301     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE;
 302     if (!WIN_IsWindowDrawable( wndPtr, !(flags & RDW_FRAME) ) )
 303     {
 304         WIN_ReleaseWndPtr(wndPtr);
 305         return TRUE;  /* No redraw needed */
 306     }
 307
 308     bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon);
 309     if (rectUpdate)
 310     {
 311         TRACE(win, "%04x %d,%d-%d,%d %04x flags=%04x\n",
 312                     hwnd, rectUpdate->left, rectUpdate->top,
 313                     rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags );
 314     }
 315     else
 316     {
 317         TRACE(win, "%04x NULL %04x flags=%04x\n", hwnd, hrgnUpdate, flags);
 318     }
 319
 320     GetClientRect( hwnd, &rectClient );
 321
 322     if (flags & RDW_INVALIDATE)  /* Invalidate */
 323     {
 324         int rgnNotEmpty = COMPLEXREGION;
 325
 326         if (wndPtr->hrgnUpdate > 1)  /* Is there already an update region? */
 327         {
 328             if ((hrgn = hrgnUpdate) == 0)
 329                 hrgn = CreateRectRgnIndirect( rectUpdate ? rectUpdate :
 330                                                 &rectClient );
 331             rgnNotEmpty = CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 332                                         hrgn, RGN_OR );
 333             if (!hrgnUpdate) DeleteObject( hrgn );
 334         }
 335         else  /* No update region yet */
 336         {
 337             if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 338                 QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 339             if (hrgnUpdate)
 340             {
 341                 wndPtr->hrgnUpdate = CreateRectRgn( 0, 0, 0, 0 );
 342                 rgnNotEmpty = CombineRgn( wndPtr->hrgnUpdate, hrgnUpdate,
 343                                             0, RGN_COPY );
 344             }
 345             else wndPtr->hrgnUpdate = CreateRectRgnIndirect( rectUpdate ?
 346                                                     rectUpdate : &rectClient );
 347         }
 348
 349         if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT;
 350
 351         /* restrict update region to client area (FIXME: correct?) */
 352         if (wndPtr->hrgnUpdate)
 353         {
 354             HRGN clientRgn = CreateRectRgnIndirect( &rectClient );
 355             rgnNotEmpty = CombineRgn( wndPtr->hrgnUpdate, clientRgn,
 356                                         wndPtr->hrgnUpdate, RGN_AND );
 357             DeleteObject( clientRgn );
 358         }
 359
 360         /* check for bogus update region */
 361         if ( rgnNotEmpty == NULLREGION )
 362            {
 363              wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 364              DeleteObject( wndPtr->hrgnUpdate );
 365              wndPtr->hrgnUpdate=0;
 366              if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 367                    QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 368            }
 369         else
 370              if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND;
 371         flags |= RDW_FRAME;  /* Force children frame invalidation */
 372     }
 373     else if (flags & RDW_VALIDATE)  /* Validate */
 374     {
 375           /* We need an update region in order to validate anything */
 376         if (wndPtr->hrgnUpdate > 1)
 377         {
 378             if (!hrgnUpdate && !rectUpdate)
 379             {
 380                   /* Special case: validate everything */
 381                 DeleteObject( wndPtr->hrgnUpdate );
 382                 wndPtr->hrgnUpdate = 0;
 383             }
 384             else
 385             {
 386                 if ((hrgn = hrgnUpdate) == 0)
 387                     hrgn = CreateRectRgnIndirect( rectUpdate );
 388                 if (CombineRgn( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate,
 389                                   hrgn, RGN_DIFF ) == NULLREGION)
 390                 {
 391                     DeleteObject( wndPtr->hrgnUpdate );
 392                     wndPtr->hrgnUpdate = 0;
 393                 }
 394                 if (!hrgnUpdate) DeleteObject( hrgn );
 395             }
 396             if (!wndPtr->hrgnUpdate)  /* No more update region */
 397                 if (!(wndPtr->flags & WIN_INTERNAL_PAINT))
 398                     QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 399         }
 400         if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT;
 401         if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 402     }
 403
 404       /* Set/clear internal paint flag */
 405
 406     if (flags & RDW_INTERNALPAINT)
 407     {
 408         if ( wndPtr->hrgnUpdate <= 1 && !(wndPtr->flags & WIN_INTERNAL_PAINT))
 409             QUEUE_IncPaintCount( wndPtr->hmemTaskQ );
 410         wndPtr->flags |= WIN_INTERNAL_PAINT;
 411     }
 412     else if (flags & RDW_NOINTERNALPAINT)
 413     {
 414         if ( wndPtr->hrgnUpdate <= 1 && (wndPtr->flags & WIN_INTERNAL_PAINT))
 415             QUEUE_DecPaintCount( wndPtr->hmemTaskQ );
 416         wndPtr->flags &= ~WIN_INTERNAL_PAINT;
 417     }
 418
 419       /* Erase/update window */
 420
 421     if (flags & RDW_UPDATENOW)
 422     {
 423         if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */
 424             SendMessage16( hwnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 );
 425     }
 426     else if (flags & RDW_ERASENOW)
 427     {
 428         if (wndPtr->flags & WIN_NEEDS_NCPAINT)
 429             WIN_UpdateNCArea( wndPtr, FALSE);
 430
 431         if (wndPtr->flags & WIN_NEEDS_ERASEBKGND)
 432         {
 433             HDC hdc = GetDCEx( hwnd, wndPtr->hrgnUpdate,
 434                                    DCX_INTERSECTRGN | DCX_USESTYLE |
 435                                    DCX_KEEPCLIPRGN | DCX_WINDOWPAINT |
 436                                    (bIcon ? DCX_WINDOW : 0) );
 437             if (hdc)
 438             {
 439                if (SendMessage16( hwnd, (bIcon) ? WM_ICONERASEBKGND
 440                                                 : WM_ERASEBKGND,
 441                                   (WPARAM16)hdc, 0 ))
 442                   wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND;
 443                ReleaseDC( hwnd, hdc );
 444             }
 445         }
 446     }
 447
 448       /* Recursively process children */
 449
 450     if (!(flags & RDW_NOCHILDREN) &&
 451         ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) &&
 452         !(wndPtr->dwStyle & WS_MINIMIZE) )
 453     {
 454         if ( hrgnUpdate || rectUpdate )
 455         {
 456             if (!(hrgn = CreateRectRgn( 0, 0, 0, 0 )))
 457         {
 458                 WIN_ReleaseWndPtr(wndPtr);
 459                 return TRUE;
 460             }
 461            if( !hrgnUpdate )
 462            {
 463                 control |= (RDW_C_DELETEHRGN | RDW_C_USEHRGN);
 464                 if( !(hrgnUpdate = CreateRectRgnIndirect( rectUpdate )) )
 465                 {
 466                     DeleteObject( hrgn );
 467                     WIN_ReleaseWndPtr(wndPtr);
 468                     return TRUE;
 469                 }
 470            }
 471            if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 472            {
 473                 for (ppWnd = list; *ppWnd; ppWnd++)
 474                 {
 475                     WIN_UpdateWndPtr(&wndPtr,*ppWnd);
 476                     if (!IsWindow(wndPtr->hwndSelf)) continue;
 477                     if (wndPtr->dwStyle & WS_VISIBLE)
 478                     {
 479                         SetRectRgn( hrgn,
 480                                 wndPtr->rectWindow.left, wndPtr->rectWindow.top,
 481                                 wndPtr->rectWindow.right, wndPtr->rectWindow.bottom );
 482                         if (CombineRgn( hrgn, hrgn, hrgnUpdate, RGN_AND ))
 483                         {
 484                             OffsetRgn( hrgn, -wndPtr->rectClient.left,
 485                                         -wndPtr->rectClient.top );
 486                             PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, hrgn, flags,
 487                                          RDW_C_USEHRGN );
 488                         }
 489                     }
 490                 }
 491                 WIN_ReleaseWinArray(list);
 492            }
 493            DeleteObject( hrgn );
 494            if (control & RDW_C_DELETEHRGN) DeleteObject( hrgnUpdate );
 495         }
 496         else
 497         {
 498             if( (list = WIN_BuildWinArray( wndPtr, 0, NULL )) )
 499             {
 500                 for (ppWnd = list; *ppWnd; ppWnd++)
 501                 {
 502                     WIN_UpdateWndPtr(&wndPtr,*ppWnd);
 503                     if (IsWindow( wndPtr->hwndSelf ))
 504                         PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags, 0 );
 505                 }
 506                 WIN_ReleaseWinArray(list);
 507             }
 508         }
 509
 510     }
 511     WIN_ReleaseWndPtr(wndPtr);
 512     return TRUE;
 513 }
 514
 515
 516 /***********************************************************************
 517  *           RedrawWindow32    (USER32.426)
 518  */
 519 BOOL WINAPI RedrawWindow( HWND hwnd, const RECT *rectUpdate,
 520                               HRGN hrgnUpdate, UINT flags )
 521 {
 522     return PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 );
 523 }
 524
 525
 526 /***********************************************************************
 527  *           RedrawWindow16    (USER.290)
 528  */
 529 BOOL16 WINAPI RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate,
 530                               HRGN16 hrgnUpdate, UINT16 flags )
 531 {
 532     if (rectUpdate)
 533     {
 534         RECT r;
 535         CONV_RECT16TO32( rectUpdate, &r );
 536         return (BOOL16)RedrawWindow( (HWND)hwnd, &r, hrgnUpdate, flags );
 537     }
 538     return (BOOL16)PAINT_RedrawWindow( (HWND)hwnd, NULL,
 539                                        (HRGN)hrgnUpdate, flags, 0 );
 540 }
 541
 542
 543 /***********************************************************************
 544  *           UpdateWindow16   (USER.124)
 545  */
 546 void WINAPI UpdateWindow16( HWND16 hwnd )
 547 {
 548     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 549 }
 550
 551 /***********************************************************************
 552  *           UpdateWindow32   (USER32.567)
 553  */
 554 void WINAPI UpdateWindow( HWND hwnd )
 555 {
 556     PAINT_RedrawWindow( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN, 0 );
 557 }
 558
 559 /***********************************************************************
 560  *           InvalidateRgn16   (USER.126)
 561  */
 562 void WINAPI InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 563 {
 564     PAINT_RedrawWindow((HWND)hwnd, NULL, (HRGN)hrgn,
 565                        RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 566 }
 567
 568
 569 /***********************************************************************
 570  *           InvalidateRgn32   (USER32.329)
 571  */
 572 BOOL WINAPI InvalidateRgn( HWND hwnd, HRGN hrgn, BOOL erase )
 573 {
 574     return PAINT_RedrawWindow(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 575 }
 576
 577
 578 /***********************************************************************
 579  *           InvalidateRect16   (USER.125)
 580  */
 581 void WINAPI InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase )
 582 {
 583     RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) );
 584 }
 585
 586
 587 /***********************************************************************
 588  *           InvalidateRect32   (USER32.328)
 589  */
 590 BOOL WINAPI InvalidateRect( HWND hwnd, const RECT *rect, BOOL erase )
 591 {
 592     return PAINT_RedrawWindow( hwnd, rect, 0,
 593                                RDW_INVALIDATE | (erase ? RDW_ERASE : 0), 0 );
 594 }
 595
 596
 597 /***********************************************************************
 598  *           ValidateRgn16   (USER.128)
 599  */
 600 void WINAPI ValidateRgn16( HWND16 hwnd, HRGN16 hrgn )
 601 {
 602     PAINT_RedrawWindow( (HWND)hwnd, NULL, (HRGN)hrgn,
 603                         RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 604 }
 605
 606
 607 /***********************************************************************
 608  *           ValidateRgn32   (USER32.572)
 609  */
 610 void WINAPI ValidateRgn( HWND hwnd, HRGN hrgn )
 611 {
 612     PAINT_RedrawWindow( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 613 }
 614
 615
 616 /***********************************************************************
 617  *           ValidateRect16   (USER.127)
 618  */
 619 void WINAPI ValidateRect16( HWND16 hwnd, const RECT16 *rect )
 620 {
 621     RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN );
 622 }
 623
 624
 625 /***********************************************************************
 626  *           ValidateRect32   (USER32.571)
 627  */
 628 void WINAPI ValidateRect( HWND hwnd, const RECT *rect )
 629 {
 630     PAINT_RedrawWindow( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN, 0 );
 631 }
 632
 633
 634 /***********************************************************************
 635  *           GetUpdateRect16   (USER.190)
 636  */
 637 BOOL16 WINAPI GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase )
 638 {
 639     RECT r;
 640     BOOL16 ret;
 641
 642     if (!rect) return GetUpdateRect( hwnd, NULL, erase );
 643     ret = GetUpdateRect( hwnd, &r, erase );
 644     CONV_RECT32TO16( &r, rect );
 645     return ret;
 646 }
 647
 648
 649 /***********************************************************************
 650  *           GetUpdateRect32   (USER32.297)
 651  */
 652 BOOL WINAPI GetUpdateRect( HWND hwnd, LPRECT rect, BOOL erase )
 653 {
 654     BOOL retvalue;
 655     WND * wndPtr = WIN_FindWndPtr( hwnd );
 656     if (!wndPtr) return FALSE;
 657
 658     if (rect)
 659     {
 660         if (wndPtr->hrgnUpdate > 1)
 661         {
 662             HRGN hrgn = CreateRectRgn( 0, 0, 0, 0 );
 663             if (GetUpdateRgn( hwnd, hrgn, erase ) == ERROR)
 664             {
 665                 retvalue = FALSE;
 666                 goto END;
 667             }
 668             GetRgnBox( hrgn, rect );
 669             DeleteObject( hrgn );
 670             if (wndPtr->class->style & CS_OWNDC)
 671             {
 672                 if (GetMapMode(wndPtr->dce->hDC) != MM_TEXT)
 673                 {
 674                     DPtoLP (wndPtr->dce->hDC, (LPPOINT)rect,  2);
 675                 }
 676             }
 677         }
 678         else SetRectEmpty( rect );
 679     }
 680     retvalue = (wndPtr->hrgnUpdate > 1);
 681 END:
 682     WIN_ReleaseWndPtr(wndPtr);
 683     return retvalue;
 684 }
 685
 686
 687 /***********************************************************************
 688  *           GetUpdateRgn16   (USER.237)
 689  */
 690 INT16 WINAPI GetUpdateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase )
 691 {
 692     return GetUpdateRgn( hwnd, hrgn, erase );
 693 }
 694
 695
 696 /***********************************************************************
 697  *           GetUpdateRgn32   (USER32.298)
 698  */
 699 INT WINAPI GetUpdateRgn( HWND hwnd, HRGN hrgn, BOOL erase )
 700 {
 701     INT retval;
 702     WND * wndPtr = WIN_FindWndPtr( hwnd );
 703     if (!wndPtr) return ERROR;
 704
 705     if (wndPtr->hrgnUpdate <= 1)
 706     {
 707         SetRectRgn( hrgn, 0, 0, 0, 0 );
 708         retval = NULLREGION;
 709         goto END;
 710     }
 711     retval = CombineRgn( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY );
 712     if (erase) RedrawWindow( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN );
 713 END:
 714     WIN_ReleaseWndPtr(wndPtr);
 715     return retval;
 716 }
 717
 718
 719 /***********************************************************************
 720  *           ExcludeUpdateRgn16   (USER.238)
 721  */
 722 INT16 WINAPI ExcludeUpdateRgn16( HDC16 hdc, HWND16 hwnd )
 723 {
 724     return ExcludeUpdateRgn( hdc, hwnd );
 725 }
 726
 727
 728 /***********************************************************************
 729  *           ExcludeUpdateRgn32   (USER32.195)
 730  */
 731 INT WINAPI ExcludeUpdateRgn( HDC hdc, HWND hwnd )
 732 {
 733     RECT rect;
 734     WND * wndPtr;
 735
 736     if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR;
 737
 738     if (wndPtr->hrgnUpdate)
 739     {
 740         INT ret;
 741         HRGN hrgn = CreateRectRgn(wndPtr->rectWindow.left - wndPtr->rectClient.left,
 742                                       wndPtr->rectWindow.top - wndPtr->rectClient.top,
 743                                       wndPtr->rectClient.right - wndPtr->rectClient.left,
 744                                       wndPtr->rectClient.bottom - wndPtr->rectClient.top);
 745         if( wndPtr->hrgnUpdate > 1 )
 746             CombineRgn(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY);
 747
 748         /* do ugly coordinate translations in dce.c */
 749
 750         ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn );
 751         DeleteObject( hrgn );
 752         WIN_ReleaseWndPtr(wndPtr);
 753         return ret;
 754     }
 755     WIN_ReleaseWndPtr(wndPtr);
 756     return GetClipBox( hdc, &rect );
 757 }
 758
 759