Question

I am overlaying text to a bitmap as shown below, I need to be able to set a background colour behind the text and also set the HorizontalAlignment (i.e left/right/centre), can anyone advise me how this can be done. Also note the text size can vary.

Thanks.

Bitmap frameBitmap = new Bitmap(streamFrameWidth, streamFrameHeight, 
        streamFrameWidth * 3, 
        System.Drawing.Imaging.PixelFormat.Format24bppRgb, pFrame);

using (Graphics g = Graphics.FromImage(frameBitmap))
{
    // Create font and brush.
    Font drawFont = new Font("Arial", 12, FontStyle.Bold);

    SolidBrush drawBrush = new SolidBrush(Color.Black);
    // Create point for upper-left corner of drawing.
    PointF drawPoint = new PointF(10.0F, 40.0F);

    //HorizontalAlignment.

    // draw the text
    g.DrawString(overlayText, drawFont, drawBrush, drawPoint);
}

Answer 1

You can control the alignment of the drawn text by using the StringFormat parameter of the DrawString method.

• Example
• MSDN