Hi all, I have a GUI with a listview with checkboxes (extended style : $LVS_EX_CHECKBOXES) I have a button that does something only when at least one checbox is "checked" I would like the button to be "disabled" when no checkboxes are "checked" and "enabled" from the moment that someone "checks" at least one checkbox (no matter which). Question : with what EVENT (in the WHILE-WEND) can I detect a click in one of the checkboxes ? (some kind of a when-checkbox-changed event) #inclu