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WM_CLOSE message
Sent as a signal that a window or an application should terminate.
A window receives this message through its WindowProc function.
#define WM_CLOSE 0x0010
Parameters
- wParam
-
This parameter is not used.
- lParam
-
This parameter is not used.
Return value
Type: LRESULT
If an application processes this message, it should return zero.
Remarks
An application can prompt the user for confirmation, prior to destroying a window, by processing the WM_CLOSE message and calling the DestroyWindow function only if the user confirms the choice.
By default, the DefWindowProc function calls the DestroyWindow function to destroy the window.
Requirements
|
Minimum supported client |
Windows 2000 Professional [desktop apps only] |
|---|---|
|
Minimum supported server |
Windows 2000 Server [desktop apps only] |
|
Header |
|
See also
- Reference
- DefWindowProc
- DestroyWindow
- Conceptual
- Windows
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