How can I make the camera index display

[msching]

I have noticed that the camera index can be displayed on the camera screen when using the OptiTrack Point Cloud Calibration Tool. But I can't make them display in my own program using OptiTrack SDK?
What should I do?

[beckdo]

Use INPCamera->SetOption() using:

NP_OPTION_NUMERIC_DISPLAY_ON,
NP_OPTION_NUMERIC_DISPLAY_OFF,

[msching]

Thanks a lot.