mfc无标题对话框的移动方法

添加私有函数： afx_msg void OnLButtonDown(UINT nFlags, CPoint point); //定义函数体

  BEGIN_MESSAGE_MAP(CImageDlg, CDialog) 和 END_MESSAGE_MAP() 中间添加如下消息
ON_WM_LBUTTONDOWN() //鼠标按下消息 

void CTestDlg::OnLButtonDown(UINT nFlags, CPoint point) {
PostMessage(WM_NCLBUTTONDOWN,HTCAPTION,MAKELPARAM(point.x, point.y)); //向系统发送HTCAPTION消息，让系统以为鼠标点在标题栏上
CDialog::OnLButtonDown(nFlags, point);
}