Close sub-dialogs when main dialog is closed

[ssimop]

Suppose that a dialog (main dialog) launches several several sub-dialogs through relevant functions. Is it possible to assign a class to these sub-dialogs with the purpose to close them all-together when the main dialog is closed?

Many thanks in advance.

PS : I am aware of topic
http://www.quickmacros.com/forum/showthr...4#pid23854