WM_CLOSE Overview  Group

The WM_CLOSE message is sent as a signal that a window or an application should terminate.

WM_CLOSE 

 

Parameters

This message has no parameters.

Return Values

If an application processes this message, it should return zero.

Default Action

The DefWindowProc function calls the DestroyWindow function to destroy the window.

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.

See Also

DefWindowProc, DestroyWindow

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