Capturing and Viewing Event Logs with ETW

This article describes using the Windows Device Portal to capture and view Vuforia Engine logs with Event Tracing for Windows (ETW).

For information about ETW and how it allows you to start and stop event tracing sessions, provide trace events, and consume trace events, refer to the Event Tracing article in the Windows Dev Center.

The following steps are specific to the HoloLens. The instructions and information about pages within the Device Portal are contained in the Using the Windows Device Portal. For details on setting up other devices, refer to the Setup section of the Windows Device Portal article, which provides an overview of configuring and managing your device and the diagnostic tools to troubleshoot and view events.

1. Set up HoloLens to use Windows Device Portal.
2. Connect the HoloLens over Wi-Fi or with a USB cable.
3. If you are connecting your HoloLens to the Device Portal for the first time, create a username and password.
4. Select the Logging page in the Device Portal sidebar menu, and locate the Custom Providers section.
5. In the GUID field, enter 21FCCDCF-70AC-54A6-8750-61D8F3C8F90A
   Note: Some ETW tools allow you to enter a ‘hashed name’. The above GUID comes from the name ‘VuforiaEngine’. If your tool supports hashed names, enter *VuforiaEngine.
6. In the drop-down menu, select the tracing level and click Enable.

In the Events section, the ETW events are displayed in real time. Click Save to File to export the currently collected ETW events to a CSV file.

Learn More

Getting Started with Vuforia Engine for Windows 10 Development

Developing Vuforia Engine Apps for HoloLens

Working with the HoloLens Sample in Unity

Troubleshooting your App