MGUI is a C++ library that wraps over low level Windows GUI API. The library is minimal and not cross platform. It's purpose is to provide a way to quickly create Windows GUI apps using the MingW system and without using Visual C++.
Because mgui simply wraps over native UI, apps will look good and perform well.
If you need cross platform support, there are better options like Qt.
Need to link your application code with the following libraries:
-lmgui -lcomctl32 -lgdi32 -lcomdlg32
View the resource file guide.