How to tell what controls are firing events?

I’ve got an app which is firing a lot of PictureChanged and Shown events at certain times. I haven’t manually added those events to any of the images in the app, but I can see in the console all the events happening, There are many different sets of images in the app, so I don’t know which ones are firing the events. Is there any way to tell from the console data what underlying controls are doing it?

Put all the image wells in a control set, and you will be able to know which one fires, in the unique event handler for all of them.