MFC无边框对话框的拖动

void init_connect::OnLButtonDown(UINT nFlags, CPoint point)
{
// TODO:  在此添加消息处理程序代码和/或调用默认值


CDialogEx::OnLButtonDown(nFlags, point);
if (point.y < 34)//判断是否在窗口的顶部
{
SendMessage(WM_SYSCOMMAND, 0xF012, MAKELPARAM(point.x, point.y));
}
}