Antialiased text on transparent bitmap

Question

I\'d like to draw antialiased text on a transparent bitmap and have the antialiasing drawn as alpha blended pixels. This way, I can draw the bitmap onto any color surface (o

Answer 1

I'm not sure if it's really necessary, but if you want to do alpha-blending, you should specify a 32-bit image:

Bitmap bitmap = new Bitmap(this.Width, this.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);

Using your example, I was able to make the text look decent by adding a text rendering hint:

g.Clear(Color.Empty);
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
g.DrawString("hello world", new Font(this.Font.FontFamily, 24), Brushes.Blue, new Point(50, 50));

Is this doing what you want, or just hiding the problem?