How to set app menu bar on macOS?

[kornelski]

There's a menu bar example, but it creates an in-window menu, which is inappropriate for macOS.

I've found that there's GtkApplicationExt::set_menubar that might be setting the native screen-top menu bar, but this method wants gio::MenuModel, and I can't find documentation how to create that object in Rust.

[GuillaumeGomez]

I'm building a "system" menu bar here: https://github.com/GuillaumeGomez/process-viewer/blob/master/src/process_viewer.rs#L361

[kornelski]

Thanks!