private void RenderBox_MouseUp(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { m_GameEngine.OnLeftMouseUp((uint)e.X, (uint)e.Y); } else if (e.Button == MouseButtons.Right) { m_GameEngine.OnRightMouseUp((uint)e.X, (uint)e.Y); } else if (e.Button == MouseButtons.Middle) { m_GameEngine.OnMiddleMouseUp((uint)e.X, (uint)e.Y); } }