UpdateWindow
This function updates the client area of the specified window by sending a WM_PAINT message to the window if the windows 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.
BOOL UpdateWindow(
HWND hWnd
);
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
| Runs on | Versions | Defined in | Include | Link to |
|---|---|---|---|---|
| Windows CE OS | 1.0 and later | Winuser.h | Coredll.lib, Winmgr.lib |
Note This API is part of the complete Windows CE OS package as provided by Microsoft. The functionality of a particular platform is determined by the original equipment manufacturer (OEM) and some devices may not support this API.
See Also
GetLastError, GetUpdateRect, GetUpdateRgn, InvalidateRect, WM_PAINT
Last updated on Tuesday, July 13, 2004
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