unsetmenu interactive button or menu or submenu de-activation

## Syntax

    unsetmenu(button,[nsub])
                unsetmenu(gwin,button,[nsub])

## Arguments

button

  a character string. The button name

gwin

  integer. The number of graphic window where the button is installed

nsub

  integer. The number of submenu to de-activate (if any). If button has no sub-menu, `nsub` is ignored

## Description

The function allows the user to deactivate buttons or menus created by `addmenu` in the main or graphics windows command panels.

## Examples

    addmenu('foo')
    unsetmenu('foo')
    unsetmenu(gettext("File"), 3)

## See also

- delmenu
- setmenu
- addmenu