VMS Help DECTPU, HANDLER  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    The user-written HANDLER routine performs condition handling.

    Format

      HANDLER  signal_vector ,mechanism_vector

1 - Returns

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

    Longword condition value.

2 - Arguments

 signal_vector

    OpenVMS usage:arg_list
    type:         longword (unsigned)
    access:       modify
    mechanism:    by reference
    Signal vector. See the OpenVMS System Services Reference Manual
    for information about the signal vector passed to a condition
    handler.

 mechanism_vector

    OpenVMS usage:arg_list
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference
    Mechanism vector. See the OpenVMS System Services Reference
    Manual for information about the mechanism vector passed to a
    condition handler.

3 - Description

    If you need more information about writing condition handlers and
    programming concepts, refer to OpenVMS Programming Interfaces:
    Calling a System Routine.

    Instead of writing your own condition handler, you can use the
    default condition handler, TPU$HANDLER. If you want to write your
    own routine, you must call TPU$HANDLER with the same parameters
    that your routine received to handle DECTPU internal signals.