| /* |
| * Window painting functions |
| * |
| * Copyright 1993, 1994, 1995 Alexandre Julliard |
| */ |
| |
| #include <stdio.h> |
| #include <X11/Xlib.h> |
| |
| #include "win.h" |
| #include "queue.h" |
| #include "gdi.h" |
| #include "dce.h" |
| #include "heap.h" |
| #include "stddebug.h" |
| /* #define DEBUG_WIN */ |
| #include "debug.h" |
| |
| /* Last CTLCOLOR id */ |
| #define CTLCOLOR_MAX CTLCOLOR_STATIC |
| |
| /*********************************************************************** |
| * WIN_UpdateNCArea |
| * |
| */ |
| void WIN_UpdateNCArea(WND* wnd, BOOL bUpdate) |
| { |
| POINT16 pt = {0, 0}; |
| HRGN32 hClip = 1; |
| |
| dprintf_nonclient(stddeb,"NCUpdate: hwnd %04x, hrgnUpdate %04x\n", |
| wnd->hwndSelf, wnd->hrgnUpdate ); |
| |
| /* desktop window doesn't have nonclient area */ |
| if(wnd == WIN_GetDesktop()) |
| { |
| wnd->flags &= ~WIN_NEEDS_NCPAINT; |
| return; |
| } |
| |
| if( wnd->hrgnUpdate > 1 ) |
| { |
| ClientToScreen16(wnd->hwndSelf, &pt); |
| |
| hClip = CreateRectRgn32( 0, 0, 0, 0 ); |
| if (!CombineRgn32( hClip, wnd->hrgnUpdate, 0, RGN_COPY )) |
| { |
| DeleteObject32(hClip); |
| hClip = 1; |
| } |
| else |
| OffsetRgn32( hClip, pt.x, pt.y ); |
| |
| if (bUpdate) |
| { |
| /* exclude non-client area from update region */ |
| HRGN32 hrgn = CreateRectRgn32( 0, 0, |
| wnd->rectClient.right - wnd->rectClient.left, |
| wnd->rectClient.bottom - wnd->rectClient.top); |
| |
| if (hrgn && (CombineRgn32( wnd->hrgnUpdate, wnd->hrgnUpdate, |
| hrgn, RGN_AND) == NULLREGION)) |
| { |
| DeleteObject32( wnd->hrgnUpdate ); |
| wnd->hrgnUpdate = 1; |
| } |
| |
| DeleteObject32( hrgn ); |
| } |
| } |
| |
| wnd->flags &= ~WIN_NEEDS_NCPAINT; |
| |
| if ((wnd->hwndSelf == GetActiveWindow32()) && |
| !(wnd->flags & WIN_NCACTIVATED)) |
| { |
| wnd->flags |= WIN_NCACTIVATED; |
| if( hClip > 1) DeleteObject32( hClip ); |
| hClip = 1; |
| } |
| |
| if (hClip) SendMessage16( wnd->hwndSelf, WM_NCPAINT, hClip, 0L ); |
| |
| if (hClip > 1) DeleteObject32( hClip ); |
| } |
| |
| |
| /*********************************************************************** |
| * BeginPaint16 (USER.39) |
| */ |
| HDC16 BeginPaint16( HWND16 hwnd, LPPAINTSTRUCT16 lps ) |
| { |
| BOOL32 bIcon; |
| HRGN32 hrgnUpdate; |
| WND *wndPtr = WIN_FindWndPtr( hwnd ); |
| if (!wndPtr) return 0; |
| |
| bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon); |
| |
| wndPtr->flags &= ~WIN_NEEDS_BEGINPAINT; |
| |
| if (wndPtr->flags & WIN_NEEDS_NCPAINT) WIN_UpdateNCArea( wndPtr, TRUE ); |
| |
| if (((hrgnUpdate = wndPtr->hrgnUpdate) != 0) || |
| (wndPtr->flags & WIN_INTERNAL_PAINT)) |
| QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); |
| |
| wndPtr->hrgnUpdate = 0; |
| wndPtr->flags &= ~WIN_INTERNAL_PAINT; |
| |
| HideCaret( hwnd ); |
| |
| dprintf_win(stddeb,"hrgnUpdate = %04x, ", hrgnUpdate); |
| |
| /* When bIcon is TRUE hrgnUpdate is automatically in window coordinates |
| * (because rectClient == rectWindow for WS_MINIMIZE windows). |
| */ |
| |
| if (wndPtr->class->style & CS_PARENTDC) |
| /* Don't clip the output to the update region for CS_PARENTDC window */ |
| lps->hdc = GetDCEx16( hwnd, 0, DCX_WINDOWPAINT | DCX_USESTYLE | |
| (bIcon ? DCX_WINDOW : 0) ); |
| else |
| lps->hdc = GetDCEx16(hwnd, hrgnUpdate, DCX_INTERSECTRGN | |
| DCX_WINDOWPAINT | DCX_USESTYLE | |
| (bIcon ? DCX_WINDOW : 0) ); |
| |
| dprintf_win(stddeb,"hdc = %04x\n", lps->hdc); |
| |
| if (!lps->hdc) |
| { |
| fprintf(stderr, "GetDCEx() failed in BeginPaint(), hwnd=%04x\n", hwnd); |
| return 0; |
| } |
| |
| GetRgnBox16( InquireVisRgn(lps->hdc), &lps->rcPaint ); |
| DPtoLP16( lps->hdc, (LPPOINT16)&lps->rcPaint, 2 ); |
| |
| if (wndPtr->flags & WIN_NEEDS_ERASEBKGND) |
| { |
| wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; |
| lps->fErase = !SendMessage16(hwnd, (bIcon) ? WM_ICONERASEBKGND |
| : WM_ERASEBKGND, |
| (WPARAM16)lps->hdc, 0 ); |
| } |
| else lps->fErase = TRUE; |
| |
| return lps->hdc; |
| } |
| |
| |
| /*********************************************************************** |
| * BeginPaint32 (USER32.9) |
| */ |
| HDC32 BeginPaint32( HWND32 hwnd, PAINTSTRUCT32 *lps ) |
| { |
| PAINTSTRUCT16 ps; |
| |
| BeginPaint16( hwnd, &ps ); |
| lps->hdc = (HDC32)ps.hdc; |
| lps->fErase = ps.fErase; |
| lps->rcPaint.top = ps.rcPaint.top; |
| lps->rcPaint.left = ps.rcPaint.left; |
| lps->rcPaint.right = ps.rcPaint.right; |
| lps->rcPaint.bottom = ps.rcPaint.bottom; |
| lps->fRestore = ps.fRestore; |
| lps->fIncUpdate = ps.fIncUpdate; |
| return lps->hdc; |
| } |
| |
| |
| /*********************************************************************** |
| * EndPaint16 (USER.40) |
| */ |
| BOOL16 EndPaint16( HWND16 hwnd, const PAINTSTRUCT16* lps ) |
| { |
| ReleaseDC16( hwnd, lps->hdc ); |
| ShowCaret( hwnd ); |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * EndPaint32 (USER32.175) |
| */ |
| BOOL32 EndPaint32( HWND32 hwnd, const PAINTSTRUCT32 *lps ) |
| { |
| ReleaseDC32( hwnd, lps->hdc ); |
| ShowCaret( hwnd ); |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * FillWindow (USER.324) |
| */ |
| void FillWindow( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, HBRUSH16 hbrush ) |
| { |
| RECT16 rect; |
| GetClientRect16( hwnd, &rect ); |
| DPtoLP16( hdc, (LPPOINT16)&rect, 2 ); |
| PaintRect( hwndParent, hwnd, hdc, hbrush, &rect ); |
| } |
| |
| |
| /*********************************************************************** |
| * PaintRect (USER.325) |
| */ |
| void PaintRect( HWND16 hwndParent, HWND16 hwnd, HDC16 hdc, |
| HBRUSH16 hbrush, const RECT16 *rect) |
| { |
| /* Send WM_CTLCOLOR message if needed */ |
| |
| if ((UINT32)hbrush <= CTLCOLOR_MAX) |
| { |
| if (!hwndParent) return; |
| hbrush = (HBRUSH16)SendMessage32A( hwndParent, |
| WM_CTLCOLORMSGBOX + (UINT32)hbrush, |
| (WPARAM32)hdc, (LPARAM)hwnd ); |
| } |
| if (hbrush) FillRect16( hdc, rect, hbrush ); |
| } |
| |
| |
| /*********************************************************************** |
| * GetControlBrush (USER.326) |
| */ |
| HBRUSH16 GetControlBrush( HWND hwnd, HDC16 hdc, WORD control ) |
| { |
| return (HBRUSH16)SendMessage32A( GetParent32(hwnd), WM_CTLCOLOR+control, |
| (WPARAM32)hdc, (LPARAM)hwnd ); |
| } |
| |
| |
| /*********************************************************************** |
| * PAINT_RedrawWindow |
| * |
| * Note: Windows uses WM_SYNCPAINT to cut down the number of intertask |
| * SendMessage() calls. From SDK: |
| * This message avoids lots of inter-app message traffic |
| * by switching to the other task and continuing the |
| * recursion there. |
| * |
| * wParam = flags |
| * LOWORD(lParam) = hrgnClip |
| * HIWORD(lParam) = hwndSkip (not used; always NULL) |
| */ |
| BOOL32 PAINT_RedrawWindow( HWND32 hwnd, const RECT32 *rectUpdate, |
| HRGN32 hrgnUpdate, UINT32 flags, UINT32 control ) |
| { |
| BOOL32 bIcon; |
| HRGN32 hrgn; |
| RECT32 rectClient; |
| WND* wndPtr; |
| WND **list, **ppWnd; |
| |
| if (!hwnd) hwnd = GetDesktopWindow32(); |
| if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return FALSE; |
| if (!IsWindowVisible32(hwnd) || (wndPtr->flags & WIN_NO_REDRAW)) |
| return TRUE; /* No redraw needed */ |
| |
| bIcon = (wndPtr->dwStyle & WS_MINIMIZE && wndPtr->class->hIcon); |
| if (rectUpdate) |
| { |
| dprintf_win(stddeb, "RedrawWindow: %04x %d,%d-%d,%d %04x flags=%04x\n", |
| hwnd, rectUpdate->left, rectUpdate->top, |
| rectUpdate->right, rectUpdate->bottom, hrgnUpdate, flags ); |
| } |
| else |
| { |
| dprintf_win(stddeb, "RedrawWindow: %04x NULL %04x flags=%04x\n", |
| hwnd, hrgnUpdate, flags); |
| } |
| |
| GetClientRect32( hwnd, &rectClient ); |
| |
| if (flags & RDW_INVALIDATE) /* Invalidate */ |
| { |
| int rgnNotEmpty = COMPLEXREGION; |
| |
| if (wndPtr->hrgnUpdate > 1) /* Is there already an update region? */ |
| { |
| if ((hrgn = hrgnUpdate) == 0) |
| hrgn = CreateRectRgnIndirect32( rectUpdate ? rectUpdate : |
| &rectClient ); |
| rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, |
| hrgn, RGN_OR ); |
| if (!hrgnUpdate) DeleteObject32( hrgn ); |
| } |
| else /* No update region yet */ |
| { |
| if (!(wndPtr->flags & WIN_INTERNAL_PAINT)) |
| QUEUE_IncPaintCount( wndPtr->hmemTaskQ ); |
| if (hrgnUpdate) |
| { |
| wndPtr->hrgnUpdate = CreateRectRgn32( 0, 0, 0, 0 ); |
| rgnNotEmpty = CombineRgn32( wndPtr->hrgnUpdate, hrgnUpdate, |
| 0, RGN_COPY ); |
| } |
| else wndPtr->hrgnUpdate = CreateRectRgnIndirect32( rectUpdate ? |
| rectUpdate : &rectClient ); |
| } |
| |
| if (flags & RDW_FRAME) wndPtr->flags |= WIN_NEEDS_NCPAINT; |
| |
| /* check for bogus update region */ |
| if ( rgnNotEmpty == NULLREGION ) |
| { |
| wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; |
| DeleteObject32( wndPtr->hrgnUpdate ); |
| wndPtr->hrgnUpdate=0; |
| if (!(wndPtr->flags & WIN_INTERNAL_PAINT)) |
| QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); |
| } |
| else |
| if (flags & RDW_ERASE) wndPtr->flags |= WIN_NEEDS_ERASEBKGND; |
| flags |= RDW_FRAME; /* Force children frame invalidation */ |
| } |
| else if (flags & RDW_VALIDATE) /* Validate */ |
| { |
| /* We need an update region in order to validate anything */ |
| if (wndPtr->hrgnUpdate > 1) |
| { |
| if (!hrgnUpdate && !rectUpdate) |
| { |
| /* Special case: validate everything */ |
| DeleteObject32( wndPtr->hrgnUpdate ); |
| wndPtr->hrgnUpdate = 0; |
| } |
| else |
| { |
| if ((hrgn = hrgnUpdate) == 0) |
| hrgn = CreateRectRgnIndirect32( rectUpdate ); |
| if (CombineRgn32( wndPtr->hrgnUpdate, wndPtr->hrgnUpdate, |
| hrgn, RGN_DIFF ) == NULLREGION) |
| { |
| DeleteObject32( wndPtr->hrgnUpdate ); |
| wndPtr->hrgnUpdate = 0; |
| } |
| if (!hrgnUpdate) DeleteObject32( hrgn ); |
| } |
| if (!wndPtr->hrgnUpdate) /* No more update region */ |
| if (!(wndPtr->flags & WIN_INTERNAL_PAINT)) |
| QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); |
| } |
| if (flags & RDW_NOFRAME) wndPtr->flags &= ~WIN_NEEDS_NCPAINT; |
| if (flags & RDW_NOERASE) wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; |
| } |
| |
| /* Set/clear internal paint flag */ |
| |
| if (flags & RDW_INTERNALPAINT) |
| { |
| if ( wndPtr->hrgnUpdate <= 1 && !(wndPtr->flags & WIN_INTERNAL_PAINT)) |
| QUEUE_IncPaintCount( wndPtr->hmemTaskQ ); |
| wndPtr->flags |= WIN_INTERNAL_PAINT; |
| } |
| else if (flags & RDW_NOINTERNALPAINT) |
| { |
| if ( wndPtr->hrgnUpdate <= 1 && (wndPtr->flags & WIN_INTERNAL_PAINT)) |
| QUEUE_DecPaintCount( wndPtr->hmemTaskQ ); |
| wndPtr->flags &= ~WIN_INTERNAL_PAINT; |
| } |
| |
| /* Erase/update window */ |
| |
| if (flags & RDW_UPDATENOW) |
| { |
| if (wndPtr->hrgnUpdate) /* wm_painticon wparam is 1 */ |
| SendMessage16( hwnd, (bIcon) ? WM_PAINTICON : WM_PAINT, bIcon, 0 ); |
| } |
| else if (flags & RDW_ERASENOW) |
| { |
| if (wndPtr->flags & WIN_NEEDS_NCPAINT) |
| WIN_UpdateNCArea( wndPtr, FALSE); |
| |
| if (wndPtr->flags & WIN_NEEDS_ERASEBKGND) |
| { |
| HDC32 hdc = GetDCEx32( hwnd, wndPtr->hrgnUpdate, |
| DCX_INTERSECTRGN | DCX_USESTYLE | |
| DCX_KEEPCLIPRGN | DCX_WINDOWPAINT | |
| (bIcon ? DCX_WINDOW : 0) ); |
| if (hdc) |
| { |
| if (SendMessage16( hwnd, (bIcon) ? WM_ICONERASEBKGND |
| : WM_ERASEBKGND, |
| (WPARAM16)hdc, 0 )) |
| wndPtr->flags &= ~WIN_NEEDS_ERASEBKGND; |
| ReleaseDC32( hwnd, hdc ); |
| } |
| } |
| } |
| |
| /* Recursively process children */ |
| |
| if (!(flags & RDW_NOCHILDREN) && |
| ((flags & RDW_ALLCHILDREN) || !(wndPtr->dwStyle & WS_CLIPCHILDREN)) && |
| !(wndPtr->dwStyle & WS_MINIMIZE) ) |
| { |
| if ( hrgnUpdate || rectUpdate ) |
| { |
| if (!(hrgn = CreateRectRgn32( 0, 0, 0, 0 ))) return TRUE; |
| if( !hrgnUpdate ) |
| { |
| control |= (RDW_C_DELETEHRGN | RDW_C_USEHRGN); |
| if( !(hrgnUpdate = CreateRectRgnIndirect32( rectUpdate )) ) |
| { |
| DeleteObject32( hrgn ); |
| return TRUE; |
| } |
| } |
| list = WIN_BuildWinArray( wndPtr ); |
| for (ppWnd = list; *ppWnd; ppWnd++) |
| { |
| wndPtr = *ppWnd; |
| if (!IsWindow(wndPtr->hwndSelf)) continue; |
| if (wndPtr->dwStyle & WS_VISIBLE) |
| { |
| SetRectRgn( hrgn, wndPtr->rectWindow.left, |
| wndPtr->rectWindow.top, |
| wndPtr->rectWindow.right, |
| wndPtr->rectWindow.bottom ); |
| if (!CombineRgn32( hrgn, hrgn, hrgnUpdate, RGN_AND )) |
| continue; |
| OffsetRgn32( hrgn, -wndPtr->rectClient.left, |
| -wndPtr->rectClient.top ); |
| PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, hrgn, flags, |
| RDW_C_USEHRGN ); |
| } |
| } |
| HeapFree( SystemHeap, 0, list ); |
| DeleteObject32( hrgn ); |
| if (control & RDW_C_DELETEHRGN) DeleteObject32( hrgnUpdate ); |
| } |
| else |
| { |
| list = WIN_BuildWinArray( wndPtr ); |
| for (ppWnd = list; *ppWnd; ppWnd++) |
| { |
| wndPtr = *ppWnd; |
| if (IsWindow( wndPtr->hwndSelf )) |
| PAINT_RedrawWindow( wndPtr->hwndSelf, NULL, 0, flags, 0 ); |
| } |
| HeapFree( SystemHeap, 0, list ); |
| } |
| |
| } |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * RedrawWindow32 (USER32.425) |
| */ |
| BOOL32 RedrawWindow32( HWND32 hwnd, const RECT32 *rectUpdate, |
| HRGN32 hrgnUpdate, UINT32 flags ) |
| { |
| WND* wnd = WIN_FindWndPtr( hwnd ); |
| |
| /* check if there is something to redraw */ |
| |
| return ( wnd && WIN_IsWindowDrawable( wnd, !(flags & RDW_FRAME) ) ) |
| ? PAINT_RedrawWindow( hwnd, rectUpdate, hrgnUpdate, flags, 0 ) |
| : 1; |
| } |
| |
| |
| /*********************************************************************** |
| * RedrawWindow16 (USER.290) |
| */ |
| BOOL16 RedrawWindow16( HWND16 hwnd, const RECT16 *rectUpdate, |
| HRGN16 hrgnUpdate, UINT16 flags ) |
| { |
| if (rectUpdate) |
| { |
| RECT32 r; |
| CONV_RECT16TO32( rectUpdate, &r ); |
| return (BOOL16)RedrawWindow32( (HWND32)hwnd, &r, hrgnUpdate, flags ); |
| } |
| return (BOOL16)RedrawWindow32( (HWND32)hwnd, NULL, hrgnUpdate, flags ); |
| } |
| |
| |
| /*********************************************************************** |
| * UpdateWindow (USER.124) (USER32.566) |
| */ |
| void UpdateWindow( HWND32 hwnd ) |
| { |
| RedrawWindow32( hwnd, NULL, 0, RDW_UPDATENOW | RDW_NOCHILDREN ); |
| } |
| |
| |
| /*********************************************************************** |
| * InvalidateRgn16 (USER.126) |
| */ |
| void InvalidateRgn16( HWND16 hwnd, HRGN16 hrgn, BOOL16 erase ) |
| { |
| RedrawWindow32(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) ); |
| } |
| |
| |
| /*********************************************************************** |
| * InvalidateRgn32 (USER32.328) |
| */ |
| void InvalidateRgn32( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase ) |
| { |
| RedrawWindow32(hwnd, NULL, hrgn, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) ); |
| } |
| |
| |
| /*********************************************************************** |
| * InvalidateRect16 (USER.125) |
| */ |
| void InvalidateRect16( HWND16 hwnd, const RECT16 *rect, BOOL16 erase ) |
| { |
| RedrawWindow16( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) ); |
| } |
| |
| |
| /*********************************************************************** |
| * InvalidateRect32 (USER32.327) |
| */ |
| void InvalidateRect32( HWND32 hwnd, const RECT32 *rect, BOOL32 erase ) |
| { |
| RedrawWindow32( hwnd, rect, 0, RDW_INVALIDATE | (erase ? RDW_ERASE : 0) ); |
| } |
| |
| |
| /*********************************************************************** |
| * ValidateRgn16 (USER.128) |
| */ |
| void ValidateRgn16( HWND16 hwnd, HRGN16 hrgn ) |
| { |
| RedrawWindow32( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN ); |
| } |
| |
| |
| /*********************************************************************** |
| * ValidateRgn32 (USER32.571) |
| */ |
| void ValidateRgn32( HWND32 hwnd, HRGN32 hrgn ) |
| { |
| RedrawWindow32( hwnd, NULL, hrgn, RDW_VALIDATE | RDW_NOCHILDREN ); |
| } |
| |
| |
| /*********************************************************************** |
| * ValidateRect16 (USER.127) |
| */ |
| void ValidateRect16( HWND16 hwnd, const RECT16 *rect ) |
| { |
| RedrawWindow16( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN ); |
| } |
| |
| |
| /*********************************************************************** |
| * ValidateRect32 (USER32.570) |
| */ |
| void ValidateRect32( HWND32 hwnd, const RECT32 *rect ) |
| { |
| RedrawWindow32( hwnd, rect, 0, RDW_VALIDATE | RDW_NOCHILDREN ); |
| } |
| |
| |
| /*********************************************************************** |
| * GetUpdateRect16 (USER.190) |
| */ |
| BOOL16 GetUpdateRect16( HWND16 hwnd, LPRECT16 rect, BOOL16 erase ) |
| { |
| RECT32 r; |
| BOOL16 ret; |
| |
| if (!rect) return GetUpdateRect32( hwnd, NULL, erase ); |
| ret = GetUpdateRect32( hwnd, &r, erase ); |
| CONV_RECT32TO16( &r, rect ); |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * GetUpdateRect32 (USER32.296) |
| */ |
| BOOL32 GetUpdateRect32( HWND32 hwnd, LPRECT32 rect, BOOL32 erase ) |
| { |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| if (!wndPtr) return FALSE; |
| |
| if (rect) |
| { |
| if (wndPtr->hrgnUpdate > 1) |
| { |
| HRGN32 hrgn = CreateRectRgn32( 0, 0, 0, 0 ); |
| if (GetUpdateRgn( hwnd, hrgn, erase ) == ERROR) return FALSE; |
| GetRgnBox32( hrgn, rect ); |
| DeleteObject32( hrgn ); |
| } |
| else SetRectEmpty32( rect ); |
| } |
| return (wndPtr->hrgnUpdate > 1); |
| } |
| |
| |
| /*********************************************************************** |
| * GetUpdateRgn (USER.237) (USER32.297) |
| */ |
| INT16 GetUpdateRgn( HWND32 hwnd, HRGN32 hrgn, BOOL32 erase ) |
| { |
| INT32 retval; |
| WND * wndPtr = WIN_FindWndPtr( hwnd ); |
| if (!wndPtr) return ERROR; |
| |
| if (wndPtr->hrgnUpdate <= 1) |
| { |
| SetRectRgn( hrgn, 0, 0, 0, 0 ); |
| return NULLREGION; |
| } |
| retval = CombineRgn32( hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY ); |
| if (erase) RedrawWindow32( hwnd, NULL, 0, RDW_ERASENOW | RDW_NOCHILDREN ); |
| return retval; |
| } |
| |
| |
| /*********************************************************************** |
| * ExcludeUpdateRgn (USER.238) (USER32.194) |
| */ |
| INT16 ExcludeUpdateRgn( HDC32 hdc, HWND32 hwnd ) |
| { |
| RECT16 rect; |
| WND * wndPtr; |
| |
| if (!(wndPtr = WIN_FindWndPtr( hwnd ))) return ERROR; |
| |
| if (wndPtr->hrgnUpdate) |
| { |
| INT16 ret; |
| HRGN32 hrgn = CreateRectRgn32(wndPtr->rectWindow.left - wndPtr->rectClient.left, |
| wndPtr->rectWindow.top - wndPtr->rectClient.top, |
| wndPtr->rectClient.right - wndPtr->rectClient.left, |
| wndPtr->rectClient.bottom - wndPtr->rectClient.top); |
| if( wndPtr->hrgnUpdate > 1 ) |
| CombineRgn32(hrgn, wndPtr->hrgnUpdate, 0, RGN_COPY); |
| |
| /* do ugly coordinate translations in dce.c */ |
| |
| ret = DCE_ExcludeRgn( hdc, wndPtr, hrgn ); |
| DeleteObject32( hrgn ); |
| return ret; |
| } |
| return GetClipBox16(hdc, &rect); |
| } |
| |
| |
