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GetKnob()

    USAGE


        Knob = (struct Knob *) GetKnob(KnobList, KnobID)


    FUNCTION


        Returns a pointer to the knob requested with the knob ID. If there is no such
        knob, NULL is returned.


        This is useful for getting acces to knobs without having to have pointers to
        all of them stored, or having their names hard coded into the program.


        If the knobs are dynamically allocated with DupeKnobList, this is
        particularily useful.


    INPUTS


        KnobList = Pointer to list of Knobs in the window
        KnobID   = Short integer ID of the requested knob.


    RESULT


        Returns a pointer to the requested Knob, NULL if it doesn't exist.


    SEE ALSO


        DupeKnobList, DeleteKnobList