ID3 lib Implementierung

[asdfghjk]

Hi
I try to get the ID3 lib running with Qt...
at the moment I have added the id3lib.lib with add library

Now i have this message:

pragma message("*** NOTICE *** (not a real error)")

pragma message("* You should include a define in your project which reflect how you link the library")

pragma message("* If you use id3lib.lib or libprj/id3lib.dsp (you link static) you should add")

pragma message("* ID3LIB_LINKOPTION=1 to your preprocessor definitions of your project.")

pragma message("* If you use id3lib.dll (you link dynamic) you should add ID3LIB_LINKOPTION=3")

pragma message("* to your preprocessor definitions of your project.")

pragma message("***")

Where can I find my Preprocessor definitions?

Maybe someone could post a step by step documentation of adding id3lib to Qt?
I've googled 2 h and found nothing what solved my problems.

P.s. Sorry for my bad English...

[AcerExtensa]

Which IDE are you using?

[asdfghjk]

Qt creator
I have linked to the .lib and copied the header to the right place. Also i have set the Preprocessor instruction to linkoption=1.
Qt shows me the classes(ID3_tag) and their Methods (.Link / .Find ...)
but now I have this Error:

undefined reference to `ID3_Tag::ID3_Tag(char const*)'

in every line i try to access ID3_Tag or the Methods of it

[AcerExtensa]

bq. undefined reference to `ID3_Tag::ID3_Tag(char const*)’

Mean you are not linking to libid3.lib id3 lib also needs libz and there is also libid3tag i think...