Hello everyone.

We have decided to phase out the Mixed Reality Forums over the next few months in favor of other ways to connect with us.

The first way we want to connect with you is our mixed reality developer program, which you can sign up for at https://aka.ms/IWantMR.

The plan between now and the beginning of May is to clean up old, unanswered questions that are no longer relevant. The forums will remain open and usable.

On May 1st we will be locking the forums to new posts and replies. They will remain available for another three months for the purposes of searching them, and then they will be closed altogether on August 1st.

So, where does that leave our awesome community to ask questions? Well, there are a few places we want to engage with you. For technical questions, please use Stack Overflow, and tag your questions using either hololens or windows-mixed-reality. If you want to join in discussions, please do so in the HoloDevelopers Slack, which you can join by going to https://aka.ms/holodevelopers. And always feel free to hit us up on Twitter @MxdRealityDev.

How to write data into a file?


in my Hololens app i want to write data into a file which i can then view over the Device Portal. The Data contains just the time from one airtap on a special object to another airtap.
The problem ist that there will be no file created in the Device Portal under /LocalAppData/YourApp/LocalState

Thanks in advance


using UnityEngine;
using UnityEngine.XR.WSA.Input;
using System.Diagnostics;
using System;
using System.IO;

public class GazeGestureManager : MonoBehaviour
public static GazeGestureManager Instance { get; private set; }

public GameObject FocusedObject { get; private set; } // Represents the hologram that is currently being gazed at.
public Stopwatch time = new Stopwatch();
public string path;

GestureRecognizer recognizer;

// Use this for initialization
void Awake()
    Instance = this;

    // Set up a GestureRecognizer to detect Select gestures.
    recognizer = new GestureRecognizer();
    recognizer.Tapped += (args) =>
        // Send an OnSelect message to the focused object and its ancestors.
        if (FocusedObject.name == "Start")
            FocusedObject.SendMessageUpwards("OnSelectStart", SendMessageOptions.DontRequireReceiver);

            FocusedObject.SendMessageUpwards("OnSelectCube", SendMessageOptions.DontRequireReceiver);



public void StartTime()

public void StopTime()
    TimeSpan ts = time.Elapsed;
    path = Path.Combine(Application.persistentDataPath, "Messdaten.txt");
    using (TextWriter writer = File.CreateText(path))


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