Eyeshot file format thumbnail handler

You can extract the thumbnail icon from the Eyeshot proprietary file format with the below code

Bitmap thumb = UtilityEx.ConvertBytesToImage(new ReadFile(fileName, true).GetThumbnail());

For example, you can use it to create your own shell thumbnail providers as explained in this codeproject tutorial.

[ComVisible(true)]
[COMServerAssociation(AssociationType.FileExtension, ".eye")]
public class EyeThumbnailHandler : SharpThumbnailHandler
{    
    protected override Bitmap GetThumbnailImage(uint width)
    {
        return new ReadFile(SelectedItemStream, true).GetThumbnail((int)width);
    }
}