Gets the mime types included in @formats.
Note that @formats may not contain any mime types, in particular when they are empty. In that case %NULL will be returned.
%NULL-terminated array of interned strings of mime types included in @formats or %NULL if none.
See Implementation
Gets the mime types included in @formats.
Note that @formats may not contain any mime types, in particular when they are empty. In that case %NULL will be returned.