Creates and initializes a process context that is used by $GETJPI
    to scan processes on the local system or across the nodes in an
    OpenVMS Cluster system.

    On Alpha and Integrity server systems, this service accepts 64-
    bit addresses.

    Format

      SYS$PROCESS_SCAN  pidctx [,itmlst]

    C Prototype

      int sys$process_scan  (unsigned int *pidctx, void *itmlst);