The Perforce Windows GUI has a few neat tricks.

1. If you click on a folder/file in the depot view of the Perforce Windows GUI and do a copy (Ctrl+C), then if you do a paste in another application it will paste the complete depot path to that folder/file.
2. If you copy the Windows path to a folder/file in your work space and then do a paste in the depot view the Perforce Windows GUI will reveal where in the depot the folder/file is located.