Skip to content

    InquireSignal

    Check whether a signal handler is set (unix only).

    Declaration

    Source position: sysutils.pp line 121

    function InquireSignal(RtlSigNum: Integer) : TSignalState;

    Description

    RtlSigNum will check whether the signal RtlSigNum is being handled, and by whom. It returns a TSignalState result to report the state of the signal, which can be one of the following values:

    ssNotHooked
    No signal handler is set for the signal.
    ssHooked
    A signal handler is set by the RTL code for the signal.
    ssOverridden
    A signal handler was set for the signal by third-party code.

    This routine works by resetting the signal handlers, so it is risky to call.