C# winform 实现(不规则)窗体或者控件的拖动

方法一: 窗体或者控件的拖动

   private Point m_MousePoint;
    private Point m_LastPoint;

 

  protected override void OnMouseDown(MouseEventArgs e)
    {
      base.OnMouseDown(e);
      this.m_LastPoint = this.Location;
      this.m_MousePoint = this.PointToScreen(e.Location);
    }

    protected override void OnMouseMove(MouseEventArgs e)
    {
      base.OnMouseMove(e);
      if (e.Button == MouseButtons.Left)
      {
        Point t = this.PointToScreen(e.Location);
        Point l = this.m_LastPoint;

        l.Offset(t.X - this.m