Menu Bindings and Events

Keyboard Traversal

The default bindings for menus allow for keyboard selection of menu entries. The selection process is started by pressing <Alt-x>, where x is the distinguishing letter for a menubutton or a menu bar's cascade entry. The underline attribute is used to highlight the appropriate letter. The underline value is a number that specifies a character position, and the count starts at zero. For example, a File menu with a highlighted F is created for a menubutton like this:

menubutton .menubar.file -text File -underline 0 \
    -menu .menubar.file.m