Finding Window Titles You Cannot See
When automating a window you nearly always need its window title. The window title is usually displayed at the top of the window in the "title bar", but this isn't always the case, and some windows don't show the window title at all. This doesn't usually mean that the window doesn't have a title. It just isn't showing. You can still use the title. You just need to use the tools available in Macro Scheduler to find out what it is.
In this video Marcus demonstrates how to do exactly that: