NAME
        LockAmigaGuideBase - lock an amigaguide client.         (v34)

    SYNOPSIS
        key = LockAmigaGuideBase (AMIGAGUIDECONTEXT handle);
        d0                                            a0

        long lockamigaguidebase (amigaguidecontext);

    FUNCTION
        This function is used to lock the AmigaGuide context handle
        while working with data obtained with the the
        getamigaguideattr() function.

    INPUTS
        handle - amigaguidecontext handle obtained with
            OpenAmigaGuideAsync().

    RETURNS
        Returns a key to pass to unlockamigaguidebase().

    SEE ALSO
        unlockamigaguidebase()