A #GDBusConnection.
The name (well-known or unique) to watch.
Flags from the #GBusNameWatcherFlags enumeration.
Handler to invoke when @name is known to exist or %NULL.
Handler to invoke when @name is known to not exist or %NULL.
User data to pass to handlers.
Function for freeing @user_data or %NULL.
An identifier (never 0) that an be used with g_bus_unwatch_name() to stop watching the name.
2.26
Like g_bus_watch_name() but takes a #GDBusConnection instead of a #GBusType.