使对话框点任意地方都能拖动

                  使对话框点任意地方都能拖动

                          在VC6下， 只需为此对话框添加WM_LBUTTONDOWM消息函数，然后添加如下代码：

PostMessage (WM_NCLBUTTONDOWN, HTCAPTION, MAKELPARAM(point.x,point.y));