.Net Micro Framework Sample

using System;
using Microsoft.SPOT;
using Microsoft.SPOT.Hardware;
using Microsoft.SPOT.Presentation;
using Microsoft.SPOT.Presentation.Controls;

using GHIElectronics.NETMF.Hardware;
using Microsoft.SPOT.Presentation.Media;
using System.Threading;

namespace Playground
{
    public class Program
    {
        private static readonly int LCDHeight = SystemMetrics.ScreenHeight;
        private static readonly int LCDWidth = SystemMetrics.ScreenWidth;

        private static Bitmap LCD = new Bitmap(LCDWidth, LCDHeight);

        private static OutputPort led1 = new OutputPort((Cpu.Pin)ChipworkX.Pin.PC5, false);
        private static OutputPort led2 = new OutputPort((Cpu.Pin)ChipworkX.Pin.PC6, false);


        public static void Main()
        {
            Bitmap habr = Resources.GetBitmap(Resources.BitmapResources.Habr);

            LCD.Clear();
            LCD.DrawRectangle(Colors.White, 0, 0, 0, LCDWidth, LCDHeight, 0, 0, Colors.White, 0, 0, Colors.White, 0, 0, ushort.MaxValue);
            LCD.DrawImage((LCDWidth - habr.Width) / 2, (LCDHeight - habr.Height) / 2, habr, 0, 0, habr.Width, habr.Height);
            LCD.Flush();

            Cpu.GlitchFilterTime = new TimeSpan(0, 0, 0, 0, 50);
            InterruptPort btnUp = new InterruptPort((Cpu.Pin)23, true, Port.ResistorMode.PullUp, Port.InterruptMode.InterruptEdgeLow);
            InterruptPort btnSelect = new InterruptPort((Cpu.Pin)20, true, Port.ResistorMode.PullUp, Port.InterruptMode.InterruptEdgeLow);
            InterruptPort btnDown = new InterruptPort((Cpu.Pin)18, true, Port.ResistorMode.PullUp, Port.InterruptMode.InterruptEdgeLow);
            InterruptPort btnRight = new InterruptPort((Cpu.Pin)16, true, Port.ResistorMode.PullUp, Port.InterruptMode.InterruptEdgeLow);
            InterruptPort btnLeft = new InterruptPort((Cpu.Pin)25, true, Port.ResistorMode.PullUp, Port.InterruptMode.InterruptEdgeLow);

            NativeEventHandler btnPress = new NativeEventHandler(btnPress_OnInterrupt);
            btnUp.OnInterrupt += btnPress;
            btnDown.OnInterrupt += btnPress;
            btnLeft.OnInterrupt += btnPress;
            btnRight.OnInterrupt += btnPress;
            btnSelect.OnInterrupt += btnPress;


            Thread.Sleep(Timeout.Infinite);
        }

        static bool penDown = false;

        static int penX = LCDWidth / 2;
        static int penY = LCDHeight / 2;

        static void btnPress_OnInterrupt(uint data1, uint data2, DateTime time)
        {
            switch (data1)
            {
                case 20:
                    penDown = !penDown;
                    led1.Write(penDown);
                    break;
                case 25:
                    MovePen(-1, 0);
                    break;
                case 16:
                    MovePen(1, 0);
                    break;
                case 23:
                    MovePen(0, -1);
                    break;
                case 18:
                    MovePen(0, 1);
                    break;
            }
        }

        private static void MovePen(int incX, int incY)
        {
            int newX = penX + incX;
            int newY = penY + incY;
            if (newX <= 0 || newX >= LCDWidth)
                return;
            if (newY <= 0 || newY >= LCDHeight)
                return;
            if (penDown)
            {
                LCD.SetPixel(penX + incX, penY + incY, Colors.Red);
                LCD.Flush(penX, penY, 3, 3);
            }
            penX = newX;
            penY = newY;
        }
    }
}