using System;
namespace CSharpSampleStreams
{
class Program
{
static void Main(string[] args)
{
// create the interaction library
Tobii.InteractionLib.IInteractionLib intlib =
Tobii.InteractionLib.InteractionLibFactory.CreateInteractionLib(
Tobii.InteractionLib.FieldOfUse.Interactive);
// assume single screen with size 2560×1440 and use full screen (not window local) coordinates
const float width = 2560.0f;
const float height = 1440.0f;
const float offset = 0.0f;
intlib.CoordinateTransformAddOrUpdateDisplayArea(width, height);
intlib.CoordinateTransformSetOriginOffset(offset, offset);
// subscribe to gaze point data; print data to console when called
intlib.GazePointDataEvent += evt =>
{
Console.WriteLine(
“x: ” + evt.x
+ “, y: ” + evt.y
+ “, validity: ” + (evt.validity == Tobii.InteractionLib.Validity.Valid ? “valid” : “invalid”)
+ “, timestamp: ” + evt.timestamp_us + ” us”
);
};
Console.WriteLine(“Starting interaction library update loop.”);
// setup and maintain device connection, wait for device data between events and
// update interaction library to trigger all callbacks, stop after 200 cycles
const int max_cycles = 2000;
var cycle = 0;
while (cycle++ < max_cycles)
{
intlib.WaitAndUpdate();
}
// cleanup – here done explicitly with Dispose(). The alternative is to use a using statement,
// which implicitly disposes an instance when the scope is left.
intlib.Dispose();
}
}
}