libZPlay documentation (Win32)
ZPlay.LoadFileID3W Method

Load ID3 data from specified file. UNICODE varsion.

function LoadFileID3W(FileName: WideString; Format: TStreamFormat; Id3Version: TID3Version; out Info: TID3InfoW): Boolean;
FileName: WideString 
String that specifies the name of the file. 
Format: TStreamFormat 
Stream format. Use sfAutodetect if you need to autodetect stream format of specified file. 
Id3Version: TID3Version 
ID3 version.
Note: This value is only used for sfMp3 stream format. For all other stream formats this parameter is ignored. 
out Info: TID3InfoW 
Reference to TID3InfoW receiving ID3 data. 
Return Values 
All OK. 
Error. To get error message read here

Check supported formats for info tag support. Some formats can support some sort of "Info tags", but not all. 

libZPlay library implements "ID3 tag" interface to different info tags (VORBIS comment, RIFF Info, ...). So, you can retrieve ID3 informations from different streams (mp3, ogg, flac, wav) because library will convert "format specific tag" to ID3 tag info. 

Note: Use this function if you just need ID3 data and you don't need to play this file. This function only loads ID3 data. There is no checking if this is valid file, wave output isn't open ... This function has no effect on currently open file or stream. 

Copyright (c) 2010. Zoran Cindori - All rights reserved.