I am using motif 2.2.2-14. I need to make an application call the DefaultRootMenu (the desktop menu, usually accesses by button3down)

Otherwise, I need to get the mwm source code so I can borrow the f.menu code to call the DefaultRootMenu (the desktop menu) from my application. I am having a difficult time finding the mwm source code

Any help will be much appreciated.