Im trying to save image from inside pictureBox1 to my hard disk not working good

[Chocolade]

When i click a button and paintDemoMode is true then its showing this rectToDrawOut as rectangle on the pictureBox1

Now i want to save to my hard disk the image show now in the pictureBox1 including the rectangle.

But its aving just the image from the pictureBox1 without the rectangle. I tried also instead pictureBox1.Ima ge.Save i tried bb.Save but again it didnt save the rectangle. whats wrong here ?


In the pictureBox1_Pai nt event im drawing the rectangle if its needed this is the code:

if (paintDemoMode == true)
{
    Bitmap bmp = new Bitmap(combinedTemp);
    Bitmap bb = new Bitmap(bmp);
    bmp.Dispose();
    bmp = null;


    if (pictureBox1.Image != null)
    {
	pictureBox1.Image.Dispose();
	pictureBox1.Image = null;
    }

    pictureBox1.Image = bb;
    image_scan_text_rect = new Rectangle(25, 240, 341, 39);
    float x = ((float)image_scan_text_rect.X / bb.Width) * (float)this.pictureBox1.Width;
    //float y = ((float)Rect.Y / this.pictureBox1.ClientSize.Height) * (float)FirstImage.Height;
    float y = ((float)image_scan_text_rect.Y / bb.Height) * (float)this.pictureBox1.Height;
    //float newRight = ((float)Rect.Right / (float)pictureBox1.ClientSize.Width) * ((float)FirstImage.Width); 
    float newRight = ((float)image_scan_text_rect.Right / bb.Width) * (float)pictureBox1.Width;
    //float newBottom = ((float)Rect.Bottom / (float)pictureBox1.ClientSize.Height) * ((float)FirstImage.Height);
    float newBottom = ((float)image_scan_text_rect.Bottom / bb.Height) * (float)pictureBox1.Height;
    rectToDrawOut = new RectangleF(x, y, newRight - x, newBottom - y);
    pictureBox1.Image.Save(@"d:\testit.png", System.Drawing.Imaging.ImageFormat.Png);
}
return;