Unigine.WidgetSpinBox Class

// AppWorldLogic.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using Unigine;

namespace UnigineApp
{
	class AppWorldLogic : WorldLogic
	{
        // declaring a spinbox
        WidgetSpinBox spinbox;

        // callback to be fired on changing spinbox value
        void sbChanged(Widget widget) {
			WidgetSpinBox sb = WidgetSpinBox.cast(widget);

			// printing the current spinbox value to the console and 
			Log.message("Spinbox value changed: {0} \n", sb.getValue());
			sb.setFocus();
		}

    // Method creating a spinbox with specified parameters at the specified position
    WidgetSpinBox createSB(int x, int y, int min, int max, int value)
    {
        // creating a new edit line and adding it to the GUI
        WidgetEditLine new_el = new WidgetEditLine(Gui.get());
        Gui.get().addChild(new_el.getWidget(), Gui.ALIGN_OVERLAP);
        new_el.release();
        // setting widget's position
        new_el.setPosition(x, y);

        // creating a spinbox with the specified parameters and adding it to the GUI
        WidgetSpinBox new_sb = new WidgetSpinBox(Gui.get(), min, max);
        Gui.get().addChild(new_sb.getWidget(), Gui.ALIGN_OVERLAP);
        new_sb.release();

        // adding a callback to be fired on changing spinbox value
        new_sb.addCallback(Gui.CHANGED, sbChanged);
        new_sb.setOrder(1);

        // attaching the spinbox to the edit line
        new_el.addAttach(new_sb.getWidget());

        // setting initial spinbox value
        new_sb.setValue(value);

        return new_sb;
    }
    public AppWorldLogic()
		{
		}

		public override int init()
		{
            // creating a spinbox with values in [0, 10] range (current - 5) at position (100, 100)
            spinbox = createSB(100, 100, 0, 10, 5);

            return 1;
		}
		
		// ...
	}
}