the unique bus name for the destination for the signal or NULL to emit to all listeners
path of remote object
D-Bus interface to emit a signal on
the name of the signal to emit
a glib.Variant tuple with parameters for the signal or NULL if not passing parameters
TRUE unless error is set
GException on failure.
2.26
Emits a signal.
If the parameters GVariant is floating, it is consumed.
This can only fail if parameters is not compatible with the D-Bus protocol (G_IO_ERROR_INVALID_ARGUMENT), or if connection has been closed (G_IO_ERROR_CLOSED).