CCheckBoxMenuItem(AbstractSelectableAction action) Creates a checkbox menu item with a given action attached.
If the name of the action contains &, the next character is used as
mnemonic.
Creates a checkbox menu item with a given action attached.
If the name of the action contains &, the next character is used as
mnemonic. If not, the fall-back solution is to use default behaviour,
i.e. the mnemonic defined using setMnemonic on the action.
Parameters: action - The action to attach to the menu item