void UpdateCursorPosition();
void SetCursorVisibility(bool s);
+
bool GetCursorVisibility();
void SetCursorColor(int r,int g, int b);
+ void SetCornerAnnotationVisibility(bool s);
+ bool GetCornerAnnotationVisibility();
+
void GetExtremasAroundMousePointer(double & min, double & max);
void UpdateLandmarks();