From the NDI / Desktop Capture tab, a tab called Local Desktop Capture can be selected to capture the screen or window from the same computer.
This enables high performance full frame rate capture of any active window, including windows hidden behind vMix or running on a separate display.
This is great for capturing programs like Skype.
Windows 7 Note: "Aero" theme must be enabled in order to capture individual windows.
Windows 8 or higher will always work when capturing individual windows regardless of theme.