The Terminate a Subprocess routine deletes a subprocess that was
    created with the SMG$CREATE_SUBPROCESS routine.

    Format

      SMG$DELETE_SUBPROCESS  display-id

1  –  Returns

    OpenVMS usage:cond_value
    type:         longword (unsigned)
    access:       write only
    mechanism:    by value

2  –  Argument

 display-id

    OpenVMS usage:identifier
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference

    Identifier of the virtual display associated with the subprocess
    being deleted. The display-id argument is the address of an
    unsigned longword that contains this virtual display identifier.