This class encapsulates information about the installed image codecs (components that can encode and decode images for storage).

Typically, you will use the static GetImageDecoders() and GetImageEncoders() methods to retrieve the installed encoders or decoders. You can then enumerate those lists to look for a codec that matches your requirements. You might compare against the MimeType of the codec, the CodecName, or the FormatDescription (a textual description of the file format).

public sealed class ImageCodecInfo {
// Public Instance Properties
   public Guid Clsid{set; get; }
   public string CodecName{set; get; }
   public string DllName{set; get; }
   public string FilenameExtension{set; get; }
   public ImageCodecFlags Flags{set; get; }
   public string FormatDescription{set; get; }
   public Guid FormatID{set; get; }
   public string MimeType{set; get; }
   public byte[  ][ ] SignatureMasks{set; get; }
   public byte[  ][ ] SignaturePatterns{set; get; }
   public int Version{set; get; }
// Public Static Methods
   public static ImageCodecInfo[ ] GetImageDecoders();
   public static ImageCodecInfo[ ] GetImageEncoders();
}

Passed To

System.Drawing.Image.Save()