You must use MUIA_Selected and not MUIA_Pressed when dealing with a checkbox.

MUIA_Pressed should only used for button object notifications.

Beside that is using ReturnID a bad behaviour. Better create a proper subclass and notify a class internal method.

Geit


[ Edited by geit 05.10.2012 - 10:22 ]

I had defined a notify to change automaticly the state of other buttons, and it had the same problem with the first event, but after changing the notification to MUIA_Selected, it works properly, thanks you!

[ Edited by BalrogSoft 05.10.2012 - 10:56 ]