Next Steps
If you are unable to use
IMAQdxTimestampHigh and
IMAQdxTimestampLow to get the camera timestamp, you can use the
IMAQ Get Custom Keys VI to see what custom keys you have access to:

Note: This image is a LabVIEW snippet, which includes LabVIEW code that you can reuse in your project. To use a snippet, right-click the image, save it to your computer, and drag the file onto your LabVIEW diagram.
If the
IMAQdxTimestampHigh and
IMAQdxTimestampLow keys aren't available, then its likely that the
IMAQdxReceiveTimestampHigh and
IMAQdxReceiveTimestampLow are available, which will give access to the system timestamp instead of the camera capture timestamp. Read
How Do I Acquire a Timestamp from my NI-IMAQdx Supported Camera? for more information.