Structure about trailing detection parameters.
struct{ NET_VCA_POLYGON struRegion; WORD wRes; BYTE bySensitivity; BYTE byRes[5]; }NET_VCA_TRAIL, *LPNET_VCA_TRAIL;
Coordinates of detection region, refer to the structure NET_VCA_POLYGON for details.
Reserved.
Sensitivity, range: [1,5]
Reserved, set to 0.