void SetOverlayActive(boolean);
boolean GetOverlayActive();
void SetDrawDeactivationMask(int);
void SetOverlayActive(boolean);
boolean GetOverlayActive();
void SetDrawDeactivationMask(int);
void InitJoysticks();
boolean ReadJoystick(int, int *, int *, boolean *, boolean *);
boolean CheckJoystickOpened(int);
void InitJoysticks();
boolean ReadJoystick(int, int *, int *, boolean *, boolean *);
boolean CheckJoystickOpened(int);