按钮失去焦点事件的响应

 

需从CButton派生一个类，并重写OnKillFocus函数，示例如下：

BEGIN_MESSAGE_MAP(CFocusButton, CButton)
 ON_WM_KILLFOCUS()
END_MESSAGE_MAP()

// CFocusButton message handlers
void CFocusButton::OnKillFocus(CWnd* pNewWnd)
{
 CButton::OnKillFocus(pNewWnd);

 // TODO: Add your message handler code here
 GetParent()->SendMessage( WM_NOFOCUS );
}