Sets the unique identifier for @application.
The application id can only be modified if @application has not yet been registered.
If non-%NULL, the application id must be valid. See g_application_id_is_valid().
the identifier for @application
2.28
See Implementation
Sets the unique identifier for @application.
The application id can only be modified if @application has not yet been registered.
If non-%NULL, the application id must be valid. See g_application_id_is_valid().