take a look at Image::Save Method Status Save( IStream* stream, const CLSID* clsidEncoder, const EncoderParameters* encoderParams ); http://msdn.microsoft.com/library/en-us/gdicpp/gdi+/gdi+reference/classes/imageclass/imagemethods/imagesavemethods/save_32stream_clsidencoder_encoderparams.asp?frame=true
const CLSID* clsidEncoder,
const EncoderParameters* encoderParams
);
http://msdn.microsoft.com/library/en-us/gdicpp/gdi+/gdi+reference/classes/imageclass/imagemethods/imagesavemethods/save_32stream_clsidencoder_encoderparams.asp?frame=true