增加WM_ACAD_KEEPFOCUS消息的响应函数

afx_msg LONG onAcadKeepFocus( UINT, LONG );

BEGIN_MESSAGE_MAP(CPlotSingleDlg, CAcUiDialog)
 ON_MESSAGE( WM_ACAD_KEEPFOCUS, onAcadKeepFocus )
END_MESSAGE_MAP()

LONG CPlotSingleDlg::onAcadKeepFocus( UINT, LONG )

{
 return TRUE;
}

arx 中对话框无法获得输入焦点的问题