This event is triggered when a command item is clicked in the command menu.
boolean
Specifies whether the event should be canceled. true to prevent the default click action.
Specifies the command item that was clicked.
HTMLElement
Specifies the HTML element associated with the clicked command item.
Event
Specifies the native browser event associated with the command item click.
boolean
Specifies whether the click was made by the user (true) or programmatically (false).