(I64 only.) The Get Invocation Context routine gets the
    invocation context of any active procedure.

    Format

      LIB$I64_GET_INVO_CONTEXT   invo_handle, invo_context

1  –  Returns

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

2  –  Arguments

 invo_handle

    OpenVMS usage:invo_handle
    type:         quadword
    access:       modify only
    mechanism:    by reference

    Address of an invocation context block into which the procedure
    context of the frame specified by invo_handle will be written.

 invo_context

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

    Address of an invocation context block into which the procedure
    context of the frame specified by invo_handle will be written.