Hook to TOC selection change event

Discussion created by dlednik-esristaff Employee on Sep 18, 2012
Latest reply on Sep 28, 2012 by christianjunk
How do I hook to selection change event (or OnMouseDown) of ArcMap TOC from a custom plugin.
I have a plugin that has an extension and dockable window and I need to update the window with information every time you select a new layer in TOC. Is this even possible?