Visual Studio 2010：在VSPackage工具窗口中使用Winforms用户控件

public MyToolWindow() :  base(null)
    {
        this.Caption = Resources.ToolWindowTitle;
        this.BitmapResourceID = 301;
        this.BitmapIndex = 1;
        control = new MyControl();
    }

     override public System.Windows.Forms.IWin32Window Window
    {
        get
        {
            return (System.Windows.Forms.IWin32Window)control;
        }
    }