//////////////
static const GUID cfg_title_guid =
{ 0x10845646, 0x3391, 0x4931, { 0xb2, 0x17, 0xa2, 0x2d, 0x34, 0x14, 0xf3, 0x3b } };
// {8ADA0C53-2EB8-4389-9FEC-457D2C2C2C01}

static cfg_string cfg_title(cfg_title_guid,"%title%");

track->format_title(NULL, title8, cfg_title, NULL);
///////////////////////

I tried to complie these codes in lastest verion of the SDK,but the third can't be complied, so how can I do to make it useful as before to get the such information?

You should use playback_control::playback_format_title() if you want data from the currently playing song. If you use the metadb_handle, you won't get any dynamic information. Also, you should compile your formatting script into a titleformat_object using the titleformat_compiler. There should be sample code for this here on the forum.

thank you

What if I do not want to have any formatting applied, but to get the plain title, album, artist etc. as specified in the tags (if any)? Is there an easier way (read: less lines of code) to retrieve this kind of information in that case?

Found it: If you do not need formatting but just want to get the plain tag / metadata, you can do:

Note that there may be multiple values for a given field. Unless you have a specific reason to ignore additional values you should check for that.

Hmm, in my case I'd like to just display the title etc. of the currently playing file on the desktop (using third-party software). I guess in such a case it does not make much sense to check for multiple "TITLE" tags fields within a single file, as I would display only one (i.e. the first) title anyways, or?