C# 无边框窗体 移动 两种方法

转载自：http://blog.sina.com.cn/s/blog_6b7c38030100xx17.html网上和书上大致有两种方法，各有长短吧。一种是使用Windows API：//需添加using System.Runtime.InteropServices;[DllImport("user32.dll")]  public static extern bool ReleaseCapture();[DllImport("user32.dll")]public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);    //......private void Form1_MouseDown(object sender, MouseEventArgs e){//窗体移动      if (e.Button == MouseButtons.Left)     {           ReleaseCapture(); //释放鼠标捕捉           //发送左键点击的消息至该窗体(标题栏)           SendMessage(Handle, 0xA1, 0x02, 0);      } }这个方法，使用的话拖动效果和正常窗口拖动效果差不多，但是一句ReleaseCapture()就使窗口的某些Mouse事件无法响应。比如MouseClick。有时候是不能忍的。第二种方法是在某几个Mouse事件中共同实现。如下：bool beginMove = false;//初始化

int currentXPosition;

        int currentYPosition;

        private void Form1_MouseDown(object sender, MouseEventArgs e)

        {
if (e.Button == MouseButtons.Left)
 {

            beginMove = true;

            currentXPosition = MousePosition.X;//鼠标的x坐标为当前窗体左上角x坐标

            currentYPosition = MousePosition.Y;//鼠标的y坐标为当前窗体左上角y坐标
}

        }

        private void Form1_MouseMove(object sender, MouseEventArgs e)

        {

            if (beginMove)

            {

                this.Left += MousePosition.X - currentXPosition;//根据鼠标x坐标确定窗体的左边坐标x

                this.Top += MousePosition.Y - currentYPosition;//根据鼠标的y坐标窗体的顶部，即Y坐标

                currentXPosition = MousePosition.X;

                currentYPosition = MousePosition.Y;

            }

        }

        private void Form1_MouseUp(object sender, MouseEventArgs e)

        {

            if (e.Button == MouseButtons.Left){

                    currentXPosition = 0; //设置初始状态currentYPosition = 0;beginMove = false;

              }}这种方法在C#中比较正规（不用调用API了）。缺点是，还得多加一些方法优化窗口移动效果。