A marshaller for a #GCClosure with a callback of type void (*callback) (gpointer instance, gfloat arg1, gpointer user_data).
the #GClosure to which the marshaller belongs
ignored
2
a #GValue array holding the instance and the #gfloat parameter
the invocation hint given as the last argument to g_closure_invoke()
additional data specified when registering the marshaller
See Implementation
A marshaller for a #GCClosure with a callback of type void (*callback) (gpointer instance, gfloat arg1, gpointer user_data).