I'm fairly sure that you have used Info.h metrics in the past, and so shall not suggest that (but DDigit also prints in color, but not always too appealingly in YV12).
DDigit:-
http://forum.doom9.org/showthread.ph...ghlight=ddigit
Presumably the text is not static, so will require call from within GetFrame.
Here a couple of links that might be worth your time.
http://forum.doom9.org/showthread.ph...ke#post1776368
Eval:
http://forum.doom9.org/showthread.ph...64#post1785164
I'll pass on the MT q.
EDIT: This thread has Info.h metrics capability with both frame and string formatting:-
http://forum.doom9.org/showthread.php?t=163082