Interaktive Desktoptutorials

using System;
using System.Windows.Forms;
using System.Drawing;
using System.IO;
using System.Runtime.InteropServices;
using System.Threading;
using System.Timers;
using System.Diagnostics;
using Tim = System.Timers.Timer;


namespace Bildmaler
{
class Haupt
{
    [DllImport("user32.dll")]
    public static extern IntPtr GetDC(IntPtr hWnd);
    [DllImport("user32.dll")]
    public static extern short GetAsyncKeyState(int key);
    [DllImport("user32.dll")]
    public static extern bool InvalidateRect(IntPtr hwnd, IntPtr rect, bool erase);
    //Für Interaktiv später
    [DllImport("user32.dll")]
    static extern bool GetCursorPos(out Point lpPoint);


    public static short _ispressed(int key)
    {
        short a, k=0;
        a = GetAsyncKeyState(key);
        if (a == -32767) k = 1; //|| a == 1
        return k;
    }
    public static int ticks;
    public static void Main(string[] args)
    {
        string datei;
        if (args.Length < 1)
        {
            datei = "tut.bt1"; //Dann ist Debug
            if (!File.Exists(datei)) datei = "tut.bt2";
        }
        else
        {
            datei = args[0];
        }
        int sleep = 1;
        string title = "";


        string now = "";
        if (!File.Exists(datei))
        {
            MessageBox.Show("Textdatei konnte nicht gefunden werden!", "Fehler");
            return;
        }
        StreamReader file = new StreamReader(datei);
        IntPtr hwnd = FindWindow(title); //IntPtr.Zero;
        IntPtr dc = GetDC(hwnd);
        Graphics desk = Graphics.FromHdc(dc);
        Tim t = new Tim();
        t.Elapsed += new ElapsedEventHandler(up);
        int endit=0;
        Point mouse = new Point();
        int mode=0;
        int xx=-1, yy=-1, ww=-1, hh=-1;
        try
        {
            Image img;
            Point p;
            while (!file.EndOfStream)
            {
                now = file.ReadLine();
                string[] split = now.Split(',');
                if (split.Length < 4) throw new Exception("Die Zeile der Textdatei hat nicht genug Argumente!");
                if (split.Length > 4)
                {
                    if (split.Length < 9) throw new Exception("Anzahl der Parameter ungültig!");
                    mode = Convert.ToInt32(split[4]);
                    if (mode > 2) mode = 2;
                    xx = Convert.ToInt32(split[5]);
                    yy = Convert.ToInt32(split[6]);
                    ww = Convert.ToInt32(split[7]) + xx;
                    hh = Convert.ToInt32(split[8]) + yy;
                }
                else
                {
                    mode = 0;
                }
                if (!File.Exists(split[0])) throw new Exception("Bilddatei nicht gefunden!");
                img = Image.FromFile(split[0]);
                p = new Point(Convert.ToInt32(split[1]), Convert.ToInt32(split[2]));
                if (Convert.ToInt32(split[3]) != 0)
                {
                    t.Interval = Convert.ToInt32(split[3]);
                    t.Start();
                }
                while (_ispressed(27) == 0 && endit == 0)
                {
                    if (ticks == 1) endit = 1;
                    if (mode > 0)
                    {
                        GetCursorPos(out mouse);
                        if (mouse.X >= xx && mouse.Y >= yy && mouse.X <= ww && mouse.Y <= hh)
                        {
                            if (mode == 1) endit = 1;
                            if (mode == 2)
                            {
                                if (_ispressed(1) == 1) endit = 1;
                            }
                        }
                    }
                    desk.DrawImage(img, p);
                    Thread.Sleep(sleep);
                }
                endit = 0;
                ticks = 0;
                t.Stop();
                img.Dispose();
                InvalidateRect(IntPtr.Zero, IntPtr.Zero, true);
            }
        }
        catch (Exception e)
        {
            //Console.WriteLine("Fehler/Error: " + e.Message);
            MessageBox.Show(e.Message, "Fehler/Error");
        }
        file.Close();
        file.Dispose();
        desk.Dispose();
        t.Dispose();
    }
    public static void up(object sender, ElapsedEventArgs e)
    {
        ticks = 1;
    }


    public static IntPtr FindWindow(string title)
    {
        if (title == "") return IntPtr.Zero;
        Process[] tempProcesses;
        tempProcesses = Process.GetProcesses();
        foreach (Process proc in tempProcesses)
        {
            if (proc.MainWindowTitle == title)
            {
                return proc.MainWindowHandle;
            }
        }
        return IntPtr.Zero;
    }
}
}