Η gtkmm και η Win32
Ένα από τα μεγάλα πλεονεκτήματα της gtkmm είναι ότι είναι διαλειτουργική. Τα προγράμματα gtkmm που είναι γραμμένα σε άλλα λειτουργικά όπως GNU/Linux μπορούν γενικά να μεταφερθούν στα Windows (και αντίστροφα) με λίγες τροποποιήσεις στην πηγή.
gtkmm currently works with the MinGW/GCC compiler with a compiler version that supports C++17, such as gcc 7 or 8. It also works with Microsoft Visual C++ 2017 15.7.x or later (including the freely available express/community editions) on the Windows platform. There is an installer available for gtkmm on Microsoft Windows, but as of this writing (October 2020) it has not been updated for a long time. Please be aware that although normally it is fine to mix builds done with Visual Studio 2017 and 2019, please do not do so when building gtkmm with its -mm dependencies.
Refer to the README.win32, as well as the README files in the gtkmm, pangomm and glibmm for instructions on how to build gtkmm on Windows.