Previously, FXMenuCommand objects served a number of different roles. In FOX 1.0, an FXMenuCommand could:
Display a simple "bang" command, with an optional icon;
Display a checked menu item, indicating an on or off state for a particular application property; or,
Display a radio button, indicating that the menu command represented the selected option of a number of mutually exclusive options.
In FOX 1.2, the basic FXMenuCommand's functionality has been stripped down the first of these, displaying a simple command and icon. If you want a checked menu command, use the new FXMenuCheck widget (a subclass of FXMenuCommand). If you want radio menu command, use the new FXMenuRadio widget (also a subclass of FXMenuCommand). For more information, see this section on the new FXMenuCheck and FXMenuRadio widgets.