Library /sys$common/syshlp/helplib.hlb  —  RTL Routines, LIB$  LIB$GET_INVO_HANDLE, Argument
 invo_context

    OpenVMS usage:invo_context_blk
    type:         structure
    access:       read only
    mechanism:    by reference

    Address of an invocation context block. Here, only the frame
    pointer and stack pointer fields of an invocation context block
    must be defined.
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