I'm looking into creating an Outlook addin for Office365 store which directly integrates into the Outlook compose pane. I wish to follow the UI structure shown in this MSDN article, the custom pane, however there are no details on how to do it, any any App for Office I make seems to create the generic task pane.
How would I go about having my application create UI elements in Outlook's compose pane?
to deliver the best developer experience, you want to build an add-in command in compose window. Check out these two blog posts on this feature, along with a sample posted at the end of the second one. That sample shows you how to create a button in the ribbon of a message compose window.
http://blogs.msdn.com/b/exchangedev/archive/2015/08/31/introducing-add-in-commands.aspx http://blogs.msdn.com/b/exchangedev/archive/2015/09/01/building-add-ins-with-commands.aspx
Very soon, the Office store will require that add-ins which integrate into compose window use commands, so you should follow these posts.
While we do have tooling in Visual Studio, it's currently only showing how to build an add-in without a command. We're currently working on upgrading the tooling to support commands as well, so for the time being please use the samples referenced in the blog posts.
