LRESULT OnFocus(UINT uMsg, WPARAM , LPARAM , BOOL& bHandled)
LRESULT OnFocus(UINT , WPARAM , LPARAM , BOOL& bHandled)
	LRESULT OnFocus(UINT uMsg, WPARAM /*wParam*/, LPARAM /*lParam*/, BOOL& bHandled)	{		m_fFocus = (uMsg == WM_SETFOCUS) ? 1 : 0;		Invalidate();		UpdateWindow();		bHandled = FALSE;		return 1;	}