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Changed SetParent32 to adhere to Windows behaviour (mostly), 

which should also keep it from leaving garbage around.
This commit is contained in:
Ove Kaaven 1999-02-13 09:02:17 +00:00 committed by Alexandre Julliard
parent 42d1255857
commit 72d8dbe38a
1 changed files with 14 additions and 4 deletions
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18
windows/win.c
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@ -1932,17 +1932,27 @@ HWND16 WINAPI SetParent16( HWND16 hwndChild, HWND16 hwndNewParent )
HWND32 WINAPI SetParent32( HWND32 hwndChild, HWND32 hwndNewParent )
{
WND *wndPtr = WIN_FindWndPtr( hwndChild );
DWORD dwStyle = (wndPtr)?(wndPtr->dwStyle):0;
WND *pWndNewParent =
(hwndNewParent) ? WIN_FindWndPtr( hwndNewParent ) : pWndDesktop;
WND *pWndOldParent =
(wndPtr)?(*wndPtr->pDriver->pSetParent)(wndPtr, pWndNewParent):NULL;
WND *pWndOldParent;
/* Windows hides the window first, then shows it again
* including the WM_SHOWWINDOW messages and all */
if (dwStyle & WS_VISIBLE)
ShowWindow32( hwndChild, SW_HIDE );
pWndOldParent = (wndPtr)?(*wndPtr->pDriver->pSetParent)(wndPtr, pWndNewParent):NULL;
/* SetParent32 additionally needs to make hwndChild the topmost window
in the x-order and send the expected WM_WINDOWPOSCHANGING and
WM_WINDOWPOSCHANGED notification messages.
*/
SetWindowPos32( hwndChild, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE|SWP_NOSIZE);
SetWindowPos32( hwndChild, HWND_TOPMOST, 0, 0, 0, 0,
SWP_NOMOVE|SWP_NOSIZE|((dwStyle & WS_VISIBLE)?SWP_SHOWWINDOW:0));
/* FIXME: a WM_MOVE is also generated (in the DefWindowProc handler
* for WM_WINDOWPOSCHANGED) in Windows, should probably remove SWP_NOMOVE */
return pWndOldParent?pWndOldParent->hwndSelf:0;
}