Plugin for importing/exporting playlists.
function GetExtensions: WideString;
Extensions of playlist files, e.g. ".m3u"
function LoadFile(const PlayList: IUnknown; const FileName: WideString; Flags: Integer): WordBool;
Loads playlist from file specified by FileName. It should add items into the PlayList object.
function SaveFile(const PlayList: IUnknown; const FileName: WideString; Flags: Integer): WordBool;
Saves items of PlayList objects into the file specified by FileName.