Question

I have an image being displayed in a form that is being stretched to 3x its original size.
I want to write text onto the image, without that text being stretched.
Is this possible, and if so, how?

I tried (in refresh method):

    //On Form            //my Bitmap
    ImageDisplay.Image = IntensityBMP;
    Graphics g = Graphics.FromImage(ImageDisplay.Image);
    g.DrawString("MyText", new Font("Tahoma", 8), Brushes.White, etc);

and

    protected override void OnPaint(PaintEventArgs e)
    {
        e.Graphics.DrawString("MyText", new Font("Tahoma", 8), etc);
        base.OnPaint(e);
    }

Both draw the text on the pre-stretched image, resulting in pixelated, too large text.

Answer 1

You need to draw the text after the PictureBox has rendered it’s image.

Either:

myForm.pictureBox1.Paint += PictureBoxPaintEvent;
private void PictureBoxPaintEvent(object sender, PaintEventArgs e)
{
   e.Graphics.DrawString("MyText", myFont, ....);
}

OR

Create a PictureBox-derived class and override Paint

protected override void OnPaint(PaintEventArgs e)
{
    base.OnPaint(e);
    e.Graphics.DrawString("MyText", new Font("Tahoma", 8), etc);
}