I'm battling with an issue where the ImageAdornerUi is not visible when viewing in a WPF window in a VSTO project. I can create a standalone WPF app and the adorner is visible, but in the VSTO project with the same code, it's not. I'm assuming that this is a resource resolution issue, but I coming up short on finding the actual problem.
I'm attaching two images that show the difference between the two project types, and also have a bare bones VSTO (Excel) project that I can send if that would be helpful.
I don't believe this is just an issue with ImageAdornerUi as other UI elements such as the Insert Hyperlink and Font dialogs also fail to appear.
Are you able to shed any light on what I'm doing wrong here please?