How to get sms sent notify?

Question

In windows phone app i use SmsComposeTask to send sms:

            SmsComposeTask sms = new SmsComposeTask()
            {
                Body = body,
                To = to
            };
            sms.Show();

I want to know if user sent sms or push back button. How i can get this notify?

Answer 1

You can't I'm afraid. You have to "set it and forget it"