学步园

在建好的winform窗体里 设置 FormBorderStyle 为 none 定义一个全局变量         private Point mouse;

为 winform 添加三个mouseDown 、MouseMove、MouseUp 事件

  private void LogonForm_MouseDown(object sender, MouseEventArgs e)
        {
            mouse = MousePosition;
            this.Capture = true;
        }

        private void LogonForm_MouseMove(object sender, MouseEventArgs e)
        {
            if (this.Capture)
            {
                this.Location = new Point(this.Left + MousePosition.X - mouse.X, this.Top + MousePosition.Y - mouse.Y);
                mouse = MousePosition;
            }
        }

        private void LogonForm_MouseUp(object sender, MouseEventArgs e)
        {
            this.Capture = false;
        }