Arguments

 

string

   OpenVMS usage:char_string
   type:         character string
   access:       read only
   mechanism:    by descriptor
   Command line. The string argument is the address of a descriptor
   of a TPU command.
 

fileio

   OpenVMS usage:vector_longword_unsigned
   type:         bound procedure value
   access:       read only
   mechanism:    by descriptor
   File I/O routine. The fileio argument is the address of a
   descriptor of a file I/O routine.
 

call_user

   OpenVMS usage:vector_longword_unsigned
   type:         bound procedure value
   access:       read only
   mechanism:    by descriptor
   Call-user routine. The call_user argument is the address of a
   descriptor of a call-user routine.