Question

Since I am not getting anywhere with my previous question, I would like to know, are there any ways I can create icons on the fly on WPF?

Answer 1

This is what I ended up doing, I don’t fully understand the details, if you find anything that can be improved, please do comment. Thanks for all the answers and comments.

 public static ImageSource GetIconWithText(int digit)
 {
     BitmapImage myBitmapImage = new BitmapImage(new Uri(@"Images\PomoDomo.ico", 
         UriKind.RelativeOrAbsolute));

     DrawingVisual drawingVisual = new DrawingVisual();

     using (DrawingContext drawingContext = drawingVisual.RenderOpen())
     {
         // Draw image
         drawingContext.DrawImage(myBitmapImage, new Rect(0, 0, myBitmapImage.Width, 
             myBitmapImage.Height));

         var typeFace = new Typeface(new FontFamily("Verdana"), FontStyles.Normal, 
             FontWeights.ExtraBold, FontStretches.UltraCondensed);
         var formatedText = new FormattedText(digit.ToString(),
               CultureInfo.InvariantCulture,
               FlowDirection.LeftToRight,
               typeFace,
               40, 
               System.Windows.Media.Brushes.White);

         //Center the text on Image
         int pointY = (int)(myBitmapImage.Height - formatedText.Height) / 2;
         int pointX = (int)(myBitmapImage.Width - formatedText.Width) / 2;

         drawingContext.DrawText(formatedText, new Point(pointX, pointY));
     }

     RenderTargetBitmap finalBitmap = new RenderTargetBitmap((int)myBitmapImage.Width, 
         (int)myBitmapImage.Height, myBitmapImage.DpiX, myBitmapImage.DpiY, 
         PixelFormats.Pbgra32);
     finalBitmap.Render(drawingVisual);
     return finalBitmap;
 }

 private static void SaveImage(RenderTargetBitmap returnBitmap, string pngFileName)
 {
     string fileName = string.Format("{0}.png", pngFileName)
     PngBitmapEncoder image = new PngBitmapEncoder();
     image.Frames.Add(BitmapFrame.Create(returnBitmap));
     using (Stream fs = File.Create(fileName))
     {
         image.Save(fs);
     }
 }