invoked locally during registration, if the application is
using its D-Bus backend. You can use this to export extra objects on the
bus, that need to exist before the application tries to own the bus name.
The function is passed the #GDBusConnection to to session bus, and the
object path that #GApplication will use to export its D-Bus API.
If this function returns true, registration will proceed; otherwise
registration will abort. Since: 2.34
invoked locally during registration, if the application is using its D-Bus backend. You can use this to export extra objects on the bus, that need to exist before the application tries to own the bus name. The function is passed the #GDBusConnection to to session bus, and the object path that #GApplication will use to export its D-Bus API. If this function returns true, registration will proceed; otherwise registration will abort. Since: 2.34