LayoutFarm.Demo_Hinge.OnStartDemo C# (CSharp) Method

        protected override void OnStartDemo(SampleViewport viewport)
        {
            var comboBox1 = CreateComboBox(20, 20);
            viewport.AddContent(comboBox1);
            var comboBox2 = CreateComboBox(50, 50);
            viewport.AddContent(comboBox2);
            //------------
            var menuItem = CreateMenuItem(50, 100);
            var menuItem2 = CreateMenuItem(5, 5);
            menuItem.AddSubMenuItem(menuItem2);
            viewport.AddContent(menuItem);
        }
        static ImageBinder LoadImageBinder(string filename)