Print content of tabpage

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C#

C#4.0

I need to print content of tabpage that is part of TabControl.

This is the way how I'm doing it:

Bitmap MemoryImage;

    public Interview1()
    {
        InitializeComponent();
        printdoc1.PrintPage += new PrintPageEventHandler(printdoc1_PrintPage);
    }

public void GetPrintArea(TabPage pnl)
{
    MemoryImage = new Bitmap(pnl.Width, pnl.Height);
    pnl.DrawToBitmap(MemoryImage, new Rectangle(0, 0, pnl.Width, pnl.Height));
}
protected override void OnPaint(PaintEventArgs e)
{
    if (MemoryImage != null)
    {
        e.Graphics.DrawImage(MemoryImage, 0, 0);
        base.OnPaint(e);
    }
}
    void printdoc1_PrintPage(object sender, PrintPageEventArgs e)
    {
        Rectangle pagearea = e.PageBounds;
e.Graphics.DrawImage(MemoryImage, (pagearea.Width / 65) - (this.tabPage2.Width / 65  ), this.tabPage2.Location.Y);
    }

public void Print(TabPage pnl)
{      
    tabPage2 = pnl;
    GetPrintArea(pnl);
    previewdlg.Document = printdoc1;
    previewdlg.ShowDialog();
}



private void toolBtnPrint_Click(object sender, EventArgs e)
{
     Print(tabPage2);
}

This works perfect, but the problem is if tabpage have a scroll bars. In that case it is printed only visible area. How to manage to print all from tabpage regardless about visible area?