Can someone give me a link where i can download a gtkmm 3.0 library for development without need to build it by myself? thanks
http://live.gnome.org/gtkmm/MSWindows
That is the best I could find. It stops at 2.8, tough.
http://mail.gnome.org/archives/gtkmm-list/2011-April/msg00077.html
That is an email to the gtkmm mailing list from the windows installer developer. It seems that the dev doesn't have much time for it right now (or at least didn't on April 28, 2011).
Not much help, but that seems to be the state of gtk+ and gtkmm on windows right now.