gio:application-application-id (object)

object -- a g:application instance
id -- a string with the identifier of the application

Accessor of the application-id slot of the g:application class. The g:application-application-id function gets the unique identifier for the application. The (setf g:application-application-id) function sets the unique identifier.

The application ID can only be modified if the application has not yet been registered. The application ID must be valid. See the g:application-id-is-valid function.