[Solved] How to cache the image of the control?

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This will help:

Bitmap getControlSurface(Control ctl)
{
    bitmap = new Bitmap(ctl.Width, ctl.Height);

    using (Graphics g = Graphics.FromImage(bitmap))
    {
        Point pScreen = PointToScreen(ctl.Location);
        g.CopyFromScreen(pScreen, Point.Empty, ctl.Size);
    }
    return bitmap;
}

If you know when the surface has been refreshed you can use it like this:

 if ( pictureBox1.Image != null) pictureBox1.Image.Dispose();
 pictureBox1.Image =  getControlSurface(pictureBox1);

The only catch is that the PictureBox actually must be completely visible on the screen!

2

solved How to cache the image of the control?