I have a WPF 4 application running on Windows XP. When I run Snoop, it picks up the application, however when I click on "Snoop this application" nothing happens. Also when I click on the magnifying glass nothing happens.
Any ideas?
I have had the same problem, but only with the msi (the installer). So, I downloaded the source code and rebuilt Snoop on my machine, and after this, it all works fine.
The latest and greatest version of Snoop is always available at http://snoopwpf.codeplex.com.
One thing to note is that the source code (available for download) is usually somewhat out of date ... as compared to the released bits which you can download an installer for. That is, I don't release Snoop for every fix/change I make.
For example, the currently released version is v2.6.0 ... but I have 9 work items marked for v2.6.1. Check out the Issue Tracker for more info on what is in each version.
The new version of Snoop supports WPF 4 (http://www.cplotts.com/2010/02/14/snoop-now-supports-wpf-4-0/).
Which version are you using?