The toolbar command API

In many cases where you specify a script for an attribute, you can also implement the attribute through a JavaScript function in a command file. This action is necessary when the functions need to take arguments, as in the command handler for a text box. It is required for pop-up menus and combo boxes.

The command file API for toolbar items is an extension of the menu command file API, so you can reuse menu command files directly as toolbar command files, perhaps with some additional functions that are specific to toolbars.