Hi Troy!
>How can I add a control to a window's titlebar?
>Basically, I would like to add an image near the max/min buttons that will respond to a click event.
I believe that you can't to do this.
What you can to do is remove window's titlebar and in your form to create a place that will be your titlebar (you will have that put all functions of window's titlebar like max/min buttons).
I hope this help you.
Erick
Força Sempre!
Strength Always!