GtkAction object. To add the action to a
GtkActionGroup and set the accelerator for the action,
call gtkActionGroupAddActionWithAccel.
See for information on allowed action
names.gtkActionNew(name = NULL, label = NULL, tooltip = NULL, stock.id = NULL)namelabelNULL. [ allow-none ]tooltipNULL. [ allow-none ]stock.idNULL