Specifies a handle to an argument List.
List OLE2.LIST_TYPE;
...
alist OLE2.LIST_TYPE;
...
alist := OLE2.CREATE_ARGLIST;
OLE2.ADD_ARG(alist, );
OLE2.ADD_ARG(alist, );
...
wkbook := OLE2.INVOKE_OBJ(my_obj, 'method1', alist);
...