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This function updates the client area of the specified window by sending a WM_PAINT message to the window if the window's update region is not empty.
UpdateWindow sends a WM_PAINT message directly to the window procedure of the specified window, bypassing the application queue.
If the update region is empty, no message is sent.
BOOLUpdateWindow( HWNDhWnd);
Parameters
- hWnd
Handle to the window to be updated.
Return Values
Nonzero indicates success.
Zero indicates failure.
To get extended error information, call GetLastError.
Requirements
OS Versions: Windows CE 1.0 and later.
Header: Winuser.h.
Link Library: Coredll.lib, Winmgr.lib.
See Also
GetUpdateRect | GetUpdateRgn | InvalidateRect | WM_PAINT
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