Thank you for contacting us. We are not familiar what exactly is Delphi application. Please elaborate a bit more on this.
Test Studio only supports WPF desktop app automation. Test Studio does not support testing against WinForms desktop applications, nor non-WPF components within a WPF app. It only works with:
- Web based HTML/ASP/ASP.NET/PHP applications
- Web based Silverlight applications
- Silverlight Out Of Browser applications
- WPF desktop applications
Hope this helps.