Structure about question answer detection parameters.
struct{ NET_VCA_POLYGON struRegion; BYTE bySensitivity; BYTE byAlarmState; BYTE byZoomOver; BYTE byAnswerStudent; BYTE byRes[4]; }NET_VCA_ANSWER,*LPNET_VCA_ANSWER;
Coordinates of detection region, refer to the structure NET_VCA_POLYGON for details.
Sensitivity, range: [1,100]
Read-only field will not be displayed on the interface: 0- Reserved, 1- Alarm starts, 2- Alarm ends
0-reserved, 1-zoomed (3-close-up) (C-always set alarm to 0) (alarm is uploaded to education sharing system, which is for image switch).
Question answer status: 0-reserved, 1-no student answered, 2-a student answered, 3-multiple student answered (C-panorama).
Reserved, set to 0.