In the Athena widget set you are supposed to select the meu item
by the release of the mouse button. Note that the Xaw version of
XBoard has been phased out a few years ago, since the version
based on the more modern GTK widget set has been declared stable.
The GTK menus behave more like one nowadays expects from menus.
Op 11/13/2017 om 5:54 AM schreef Tim
Mann:
The xboard version you're using is based on the old
Athena widget set, which does not have a feature where you can
click on a menu and have it stay open until you click again to
select from it. You have to press the mouse button on the menu,
move the mouse to your selection, and only then release the
mouse button.