You can, in this view, see what is in front of or behind something else and that can help you resolve weird drawing issues and may help reveal how other applications achieve specific affects like the translucency seen in the Finders left hand navigation panes.ДЄs well in this view you can right click on any view and select the вЂњPrint description ofвЂќ menu item. There are scrollers on the bottom left to adjust the separation of the layers so its easier to see them. You can slick and drag in the view area and Xcode will reveal the various layers used to composite the image you see on screen. Once you do that you get what appears to be a 2-D wire frame drawing of the user interface views. Select Debug > View Debugging > Capture View Hierarchy. A small panel should appear and in here you can put the PID from Activity Monitor. Select Debug > Attach to Process by PID or Name. The number in that column is what you need. I happened to show the Memory usage but other views like CPU time also have a PID column. IвЂ™m going to select Xojo since everyone reading this should have a copy. Start Activity Monitor so you can get the the PID of your running application. Save that project in a new folder on your desktop since weвЂ™re going to throw it away when done. It doesnвЂ™t matter what you call it just that Xcode wont work for this without an open project. If youвЂ™re having issues getting things to appear correctly this can be very handy to know whats above or below what in the entire view hierarchy that macOS uses to create what you see on screen. In Cocoa every control is a kind of вЂњviewвЂќ and your entire UI is composed of multiple views one on top of the other and composited together.

Perhaps the handiest things Xcode can do is examine the view hierarchy of ANY application.

Select that template and edit and you have a plist ready to add to your Xojo project. If you start Xcode and select File > New > File and scroll down there is a section that lists various kinds of files that you can edit. Xcode has an excellent editor for plists. Since you can drop a plist into Xojo to supplement or replace certain keys at some point you may need to create one. I know a lot of you donвЂ™t want to mess with Xcode BUT there are some really handy things it can help you with and you donвЂ™t have to write any Swift or Objective-C code.

Xojo pass a control as a property