If you’ve ever been curious about the GDI+ encoders and decoders available on your system, you can call ImageCodecInfo.GetImageEncoders() and ImageCodecInfo.GetImageDecoders(), respectively, to find out more:
Encoders:
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ImageCodecInfo.GetImageEncoders().ToList().ForEach(
enc =>
{
Console.WriteLine(enc.FormatDescription);
Console.WriteLine("\tCLSID: {0}", enc.Clsid);
Console.WriteLine("\tCodecName: {0}", enc.CodecName);
Console.WriteLine("\tFilenameExtension: {0}", enc.FilenameExtension);
Console.WriteLine("\tFlags: {0}", enc.Flags);
Console.WriteLine("\tFormatDescription: {0}", enc.FormatDescription);
Console.WriteLine("\tFormatID: {0}", enc.FormatID);
Console.WriteLine("\tMimeType: {0}", enc.MimeType);
Console.WriteLine("\tVersion: {0}", enc.Version);
});
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On my Windows Server 2008 machine, the above code returns the following:
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BMP
CLSID: 557cf400-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in BMP Codec
FilenameExtension: *.BMP;*.DIB;*.RLE
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: BMP
FormatID: b96b3cab-0728-11d3-9d7b-0000f81ef32e
MimeType: image/bmp
Version: 1
JPEG
CLSID: 557cf401-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in JPEG Codec
FilenameExtension: *.JPG;*.JPEG;*.JPE;*.JFIF
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: JPEG
FormatID: b96b3cae-0728-11d3-9d7b-0000f81ef32e
MimeType: image/jpeg
Version: 1
GIF
CLSID: 557cf402-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in GIF Codec
FilenameExtension: *.GIF
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: GIF
FormatID: b96b3cb0-0728-11d3-9d7b-0000f81ef32e
MimeType: image/gif
Version: 1
TIFF
CLSID: 557cf405-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in TIFF Codec
FilenameExtension: *.TIF;*.TIFF
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: TIFF
FormatID: b96b3cb1-0728-11d3-9d7b-0000f81ef32e
MimeType: image/tiff
Version: 1
PNG
CLSID: 557cf406-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in PNG Codec
FilenameExtension: *.PNG
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: PNG
FormatID: b96b3caf-0728-11d3-9d7b-0000f81ef32e
MimeType: image/png
Version: 1
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Decoders:
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ImageCodecInfo.GetImageDecoders().ToList().ForEach(
enc =>
{
Console.WriteLine(enc.FormatDescription);
Console.WriteLine("tCLSID: {0}", enc.Clsid);
Console.WriteLine("tCodecName: {0}", enc.CodecName);
Console.WriteLine("tFilenameExtension: {0}", enc.FilenameExtension);
Console.WriteLine("tFlags: {0}", enc.Flags);
Console.WriteLine("tFormatDescription: {0}", enc.FormatDescription);
Console.WriteLine("tFormatID: {0}", enc.FormatID);
Console.WriteLine("tMimeType: {0}", enc.MimeType);
Console.WriteLine("tVersion: {0}", enc.Version);
});
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Again, on my Windows Server 2008 box, the above code returns the following:
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BMP
CLSID: 557cf400-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in BMP Codec
FilenameExtension: *.BMP;*.DIB;*.RLE
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: BMP
FormatID: b96b3cab-0728-11d3-9d7b-0000f81ef32e
MimeType: image/bmp
Version: 1
JPEG
CLSID: 557cf401-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in JPEG Codec
FilenameExtension: *.JPG;*.JPEG;*.JPE;*.JFIF
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: JPEG
FormatID: b96b3cae-0728-11d3-9d7b-0000f81ef32e
MimeType: image/jpeg
Version: 1
GIF
CLSID: 557cf402-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in GIF Codec
FilenameExtension: *.GIF
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: GIF
FormatID: b96b3cb0-0728-11d3-9d7b-0000f81ef32e
MimeType: image/gif
Version: 1
EMF
CLSID: 557cf403-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in EMF Codec
FilenameExtension: *.EMF
Flags: Decoder, SupportBitmap, Builtin
FormatDescription: EMF
FormatID: b96b3cac-0728-11d3-9d7b-0000f81ef32e
MimeType: image/x-emf
Version: 1
WMF
CLSID: 557cf404-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in WMF Codec
FilenameExtension: *.WMF
Flags: Decoder, SupportBitmap, Builtin
FormatDescription: WMF
FormatID: b96b3cad-0728-11d3-9d7b-0000f81ef32e
MimeType: image/x-wmf
Version: 1
TIFF
CLSID: 557cf405-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in TIFF Codec
FilenameExtension: *.TIF;*.TIFF
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: TIFF
FormatID: b96b3cb1-0728-11d3-9d7b-0000f81ef32e
MimeType: image/tiff
Version: 1
PNG
CLSID: 557cf406-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in PNG Codec
FilenameExtension: *.PNG
Flags: Encoder, Decoder, SupportBitmap, Builtin
FormatDescription: PNG
FormatID: b96b3caf-0728-11d3-9d7b-0000f81ef32e
MimeType: image/png
Version: 1
ICO
CLSID: 557cf407-1a04-11d3-9a73-0000f81ef32e
CodecName: Built-in ICO Codec
FilenameExtension: *.ICO
Flags: Decoder, SupportBitmap, Builtin
FormatDescription: ICO
FormatID: b96b3cb5-0728-11d3-9d7b-0000f81ef32e
MimeType: image/x-icon
Version: 1
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ImageCodecInfo is located in System.Drawing.Imaging.
Why am I writing this? On more than one occasion, I have found myself writing code to enumerate these values; I’d rather just have a place to look them up.