I just wrote some sample code on how to create GIF images in C#:
using System;
using System.Drawing;
using System.Drawing.Imaging;
public class Tester {
static void Main() {
Bitmap bmp = new Bitmap(79,121);
Graphics graph = Graphics.FromImage(bmp);
Font font = new Font("Times", 6, FontStyle.Italic);
for(int i=0; i<10000; i++) {
graph.Clear(Color.White);
graph.DrawString(i + " - Test", font, SystemBrushes.WindowText, 1, 1);
bmp.Save(i + "foo.gif", ImageFormat.Gif);
}
}
}
To compile that code you have to make an reference:
$ mcs -r:System.Drawing pic01.cs
To create 10.000 images takes about 12 seconds on my notebook. If you prefer PNG it takes a little bit longer ~ 26s.