Convert your old WinDom applications From WinDom version 1.10 (September 2001)
Programming guideline of WinDom

From WinDom version 1.20 (November 2002)

Remplace B_UNTOPPABLE by BEVENT_WORK. Remplace B_MODAL by BEVEBT_MODAL. Remplace WM_MNSELECTED by MN_SELECTED (read historic for that constant).