[ CCode ( cname = "GDATA_DOCUMENTS_PRESENTATION_PNG" ) ]
[ Version ( since = "0.7.0" ) ]
public const string PNG
The export format for Portable Network Graphics (PNG) image format.
For more information, see the <ulink type="http" url="https://developers.google.com/google-apps/documents-list/
valid_formats_for_presentationss"> GData protocol specification</ulink>.