Application.getDbusConnection

Gets the #GDBusConnection being used by the application, or null.

If #GApplication is using its D-Bus backend then this function will return the #GDBusConnection being used for uniqueness and communication with the desktop environment and other instances of the application.

If #GApplication is not using D-Bus then this function will return null. This includes the situation where the D-Bus backend would normally be in use but we were unable to connect to the bus.

This function must not be called before the application has been registered. See [gio.application.Application.getIsRegistered].