WSMOUSECFG_TOP_EDGE
set_percent(field, WSMOUSECFG_TOP_EDGE, f1);
get_percent(field, WSMOUSECFG_TOP_EDGE),
{ WSMOUSECFG_TOP_EDGE, 0 },
case WSMOUSECFG_TOP_EDGE:
case WSMOUSECFG_TOP_EDGE: