/* gets canvas show mode for panels */
_gcshow(def)
{
        local cs, ca;

        if (argc < 1) def = 0;

        if (def)
        {
                cs = getconfigdef("CANVAS_SHOW");
                ca = getconfigdef("CANVAS_AUTOSIZE");
        }
        else
        {
                cs = getconfig("CANVAS_SHOW");
                ca = getconfig("CANVAS_AUTOSIZE");
        }

        /* normal show and use last size */
        if ((cs == 1) && (ca == 0))
        {
                return(4);
        }
        else
        {
                return(cs);
        }
}