We aren’t using another monitor. We are using a laptop screen of resolution 1920 x 1080. After installing the appropriate software for Tobii 4C, we followed the setup guide and used the in-built calibration tool to calibrate for our laptop screen.
The eye tracker is working properly for the in built game and the gaze stream feature which comes with the software. Using the Core SDK which we have installed using NuGet package manager for WPF applications, we are using this function – “gazePointDataStream.GazePoint((gazePointX, gazePointY, _))” which is not returning values between (0,0) and (1,1) but returning values that seem to be similar to the pixel locations on the screen which also are not that accurate.