[Glade-users] Is there any way to send multi user-datas to a singal handle?

[z..jy]

for example :
guint gtk_signal_connect( GtkObject     *object,
                               const gchar   *name,
                               GtkSignalFunc  func,
                               gpointer       func_data );
there is only one user-data send to GtkSignalFunc,
Is there any way to send multi user-datas to it?