ILibraryAssetThumbnail::GetImage

ILibraryAssetThumbnail::GetImage copies "the thumbnail (of a ILibraryAsset) image bitmap to a buffer" :

InterfacePtr<ILibraryAsset>     asset ...

InterfacePtr<ILibraryAssetThumbnail> thumb (asset, IID_ILIBRARYASSETTHUMBNAIL);

if (!thumb) break;

int32 len;

thumb->GetImageSize (len);

if (len <= 0) break;

char * buffer = new char [len];

if (!buffer) break;

thumb->GetImage (buffer);

This works. But what can I do with *buffer*? Does anybody know the format of this or how to get an image (jpeg, gif, ...) out of this?

Thanks in advance,

   Paul.