Send a Native User notification.

Note: if your app is currently active, any notifications it triggers will be sent directly to the Notifications Centre (the dark grey slide-out bar on the right hand side of your screen). OS X does not display notifications in the popup style unless the triggering app is not active.

macgap.notice.notify({ title: "Notify", content: "New Message!", sound: false // optional }); 

Send a notification and then remove it from notification center:

macgap.notice.notify({title: "title", content: "conent", id: "id"}); macgap.notice.close("id"); 

Remove all notifications sent by the app:

macgap.notice.close("*");