Tobii Pro SDK C API
TobiiResearchExternalSignalData Struct Reference

Data Fields

int64_t device_time_stamp
 
int64_t system_time_stamp
 
uint32_t value
 
TobiiResearchExternalSignalChangeType change_type
 

Detailed Description

Provides data for the tobii_research_external_signal_data_callback callback.

Examples:
external_signal.c.

Field Documentation

TobiiResearchExternalSignalChangeType TobiiResearchExternalSignalData::change_type
int64_t TobiiResearchExternalSignalData::device_time_stamp

The time stamp according to the eye tracker's internal clock.

Examples:
external_signal.c.
int64_t TobiiResearchExternalSignalData::system_time_stamp

The time stamp according to the computer's internal clock.

uint32_t TobiiResearchExternalSignalData::value

The value of the external signal port on the eye tracker.

Examples:
external_signal.c.