| Tobii Pro SDK C API
    | 
| Data Fields | |
| int64_t | system_time_stamp | 
| TobiiResearchNotificationType | notification_type | 
| union { | |
| float output_frequency | |
| TobiiResearchDisplayArea display_area | |
| TobiiResearchNotificationString text | |
| } | value | 
Provides data for the tobii_research_notification_callback callback.
| TobiiResearchDisplayArea TobiiResearchNotification::display_area | 
The new display area if notification of type TOBII_RESEARCH_NOTIFICATION_DISPLAY_AREA_CHANGED
| TobiiResearchNotificationType TobiiResearchNotification::notification_type | 
The notification type.
| float TobiiResearchNotification::output_frequency | 
The new output frequency if notification of type TOBII_RESEARCH_NOTIFICATION_GAZE_OUTPUT_FREQUENCY_CHANGED
| int64_t TobiiResearchNotification::system_time_stamp | 
The time stamp according to the eye tracker's internal clock.
| TobiiResearchNotificationString TobiiResearchNotification::text | 
The new faults if notification of type TOBII_RESEARCH_NOTIFICATION_DEVICE_FAULTS. The new warnings if notification of type TOBII_RESEARCH_NOTIFICATION_DEVICE_WARNINGS. Contains a comma separated list of warnings or faults.
| union { ... } TobiiResearchNotification::value |