void SetLeftDown(bool down) { m_leftDown = down; }
void SetMiddleDown(bool down) { m_middleDown = down; }
void SetRightDown(bool down) { m_rightDown = down; }
void SetLeftDown(bool down) { m_leftDown = down; }
void SetMiddleDown(bool down) { m_middleDown = down; }
void SetRightDown(bool down) { m_rightDown = down; }