Mixed Reality Toolkit?

using Microsoft.MixedReality.Toolkit;
using Microsoft.MixedReality.Toolkit.Utilities;
using UnityEngine;

public class GetCoordHandler : MonoBehaviour
{
    private Vector3 gazePoint;

    private void Update()
    {
        // key z in editor, A button on xbox controller
        if (Input.GetKeyDown(KeyCode.Z) || Input.GetKeyDown(KeyCode.Joystick1Button0))
        {
            // make sure we have hit something
            if (CoreServices.InputSystem.GazeProvider.GazeTarget)
            {
                // grab where the gaze pointer is
                gazePoint = CoreServices.InputSystem.GazeProvider.HitInfo.point;
                // convert this position to screen coords and fire the method
                AddMarker(CameraCache.Main.WorldToScreenPoint(gazePoint));
        }
    }
}

private void AddMarker(Vector3 point)
{
    // Get the coordinates under the cursor.
    double lng, lat;
    // custom method that returns the coordinates
    OnlineMapsControlBase.instance.GetCoords_MRTK(point, out lng, out lat);

    // Create a label for the marker.
    string label = "Marker: " + (OnlineMapsMarkerManager.CountItems + 1);
    // Create a new marker.
    OnlineMapsMarkerManager.CreateItem(lng, lat, label);
 }
}

 public bool GetCoords_MRTK(Vector2 gazePosition, out double lng, out double lat)
 {
    return GetCoords(gazePosition, out lng, out lat);
 }