MouseDown プロパティ (TextEditorClientEvents)

// The client event 'MouseDown' takes two parameters sender and e
// sender  is the object which is raising the event
// e is the CancelEventArgs

//ID of the editor raising the event is "Editor"

function Editor_MouseDown(sender, e) {

        if (!confirm("Are you sure you want to click the mouse?"))
       
        //Cancels the MouseDown event      
        e.set_cancel(true);

 
}