in libdbusmenu-glib/server-marshal.c [100:114]
typedef void (*GMarshalFunc_VOID__UINT_INT) (gpointer data1,
guint arg_1,
gint arg_2,
gpointer data2);
GMarshalFunc_VOID__UINT_INT callback;
GCClosure *cc = (GCClosure*) closure;
gpointer data1, data2;
g_return_if_fail (n_param_values == 3);
if (G_CCLOSURE_SWAP_DATA (closure))
{
data1 = closure->data;
data2 = g_value_peek_pointer (param_values + 0);
}