How can you add a Custom Panel in a Visio 2013 add-in?
问题 Recently I wrote an outlook add-in which has a ribbon.xml file for an extra ribbon, context menu's, etc. I also added an extra panel docked on the right of my window. Now I've begun some research as on how to create add-ins for Visio. The ribbon.xml is practically the same, so that's not a problem at all. However, I can't seem to find any way to add a custom panel when a Visio document is opened. So far I have this in Visio to know if a document is opened/created/changed: private void