CWnd::OnKillFocus 

afx_msg void OnKillFocus( CWnd* pNewWnd );

Parameters

pNewWnd

Specifies a pointer to the window that receives the input focus (may be NULL or may be temporary).

Remarks

The framework calls this member function immediately before losing the input focus.

If the CWnd object is displaying a caret, the caret should be destroyed at this point.

Note   This member function is called by the framework to allow your application to handle a Windows message. The parameters passed to your function reflect the parameters received by the framework when the message was received. If you call the base-class implementation of this function, that implementation will use the parameters originally passed with the message and not the parameters you supply to the function.

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See Also   CWnd::SetFocus, WM_KILLFOCUS