using System;
using System.Threading;

class MainClass
{
    public static void Main()
    {
        int firstInt = 25;
        int secondInt = 80;

        Console.WriteLine("firstInt initial value = {0}", firstInt);
        Console.WriteLine("secondInt initial value = {0}", secondInt);

        Interlocked.Decrement(ref firstInt);

        Console.WriteLine("firstInt after decrement = {0}", firstInt);


    }
}

    

   
 
using System;
using System.Runtime.InteropServices;
using System.Text;

class MainClass {
    [DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileString")]
    private static extern int GetPrivateProfileString(string lpAppName, string lpKeyName, string lpDefault, StringBuilder lpReturnedString, int nSize, string lpFileName);
    [DllImport("kernel32.dll", EntryPoint = "WritePrivateProfileString")]
    private static extern bool WritePrivateProfileString(string lpAppName, string lpKeyName, string lpString, string lpFileName);

    static void Main(string[] args) {
        string val;
        val = GetIniValue("A", "Key1", "initest.ini");
        Console.WriteLine(val);
        WriteIniValue("B", "Key1", "New Value", "initest.ini");

        val = GetIniValue("C", "Key1", "initest.ini");
        Console.WriteLine(val);

        WriteIniValue("D", "Key1", "Value1", "initest.ini");
    }

    public static string GetIniValue(string section, string key, string filename) {
        int chars = 256;
        StringBuilder buffer = new StringBuilder(chars);
        string sDefault = "";
        if (GetPrivateProfileString(section, key, sDefault,
          buffer, chars, filename) != 0) {
            return buffer.ToString();
        } else {
            return null;
        }
    }

    public static bool WriteIniValue(string section, string key, string value, string filename) {
        return WritePrivateProfileString(section, key, value, filename);
    }
}

    

using System;
using System.IO;
using System.Security;
using System.Security.Cryptography;

public class StoreCryptoStream : ICryptoStream {
static byte[] tag1 = {(byte)'[',(byte)'S',(byte)'a',(byte)'u' ,(byte)'d' ,(byte)'e',(byte)'s' ,(byte)']'};
static byte[] tag2 = {(byte)'[',(byte)'S',(byte)'a',(byte)'u' ,(byte)'r' ,(byte)'c',(byte)'2' ,(byte)']'};

FileStream fs;

public StoreCryptoStream(FileStream fout) {
fs = fout;
}

public virtual void CloseStream() { fs.Close(); }
public virtual void CloseStream(Object obj) { fs.Close(); }
public virtual void SetSink(ICryptoStream pstm) { }
public virtual void SetSource(CryptographicObject co) { }
public virtual ICryptoStream GetSink() { return null; }

public virtual void Write(byte[] bin) {
int len = bin.GetLength(0);
Write(bin, 0, len);
}

public virtual void Write(byte[] bin, int start, int len) {
fs.Write(bin, start, len);
}

}

public class MainClass {
static byte[] symKey;
static byte[] symIV;

private static bool GenerateKey(string password) {
int len;
char[] cp = password.ToCharArray();
len = cp.GetLength(0);
byte[] bt = new byte[len];

for (int i = 0; i < len; i++) { bt[i] = (byte)cp[i]; } symKey = new byte[8]; symIV = new byte[8]; SHA1_CSP sha = new SHA1_CSP(); sha.Write(bt); sha.CloseStream(); for (int i = 0; i < 8; i++) { symKey[i] = sha.Hash[i]; } for (int i = 8; i < 16; i++) { symIV[i - 8] = sha.Hash[i]; } return true; } private static void DecryptData(string infile, string outfile) { FileStream fin = new FileStream(infile, FileMode.Open, FileAccess.Read); FileStream fout = new FileStream(outfile, FileMode.OpenOrCreate, FileAccess.Write); fout.SetLength(0); byte[] bin = new byte[4096]; long totlen = fin.Length; long rdlen = 8; int len; SymmetricAlgorithm des = new DES_CSP(); StoreCryptoStream scs = new StoreCryptoStream(fout); SymmetricStreamDecryptor ssd = des.CreateDecryptor(symKey, symIV); ssd.SetSink(scs); scs.SetSource(ssd); while (rdlen < totlen) { len = fin.Read(bin, 0, 4096); ssd.Write(bin, 0, len); rdlen = rdlen + len; } ssd.CloseStream(); fin.Close(); fout.Close(); } public static void Main(string[] args) { GenerateKey(args[0]); DecryptData(args[1], args[2]); } } [/csharp]

using System;
using System.IO;
using System.Security;
using System.Security.Cryptography;

public class StoreCryptoStream : ICryptoStream {
static byte[] tag1 = {(byte)'[',(byte)'S',(byte)'a',(byte)'u' ,
(byte)'d' ,(byte)'e',(byte)'s' ,(byte)']'};
static byte[] tag2 = {(byte)'[',(byte)'S',(byte)'a',(byte)'u' ,
(byte)'r' ,(byte)'c',(byte)'2' ,(byte)']'};

FileStream fs;

public StoreCryptoStream(FileStream fout) {
fs = fout;
}
public virtual void CloseStream() { fs.Close(); }
public virtual void CloseStream(Object obj) { fs.Close(); }
public virtual void SetSink(ICryptoStream pstm) { }
public virtual void SetSource(CryptographicObject co) { }
public virtual ICryptoStream GetSink() { return null; }

public virtual void Write(byte[] bin) {
int len = bin.GetLength(0);
Write(bin, 0, len);
}

public virtual void Write(byte[] bin, int start, int len) {
fs.Write(bin, start, len);
}
}
public class MainClass {
static byte[] symKey;
static byte[] symIV;

private static bool GenerateKey(string password) {
try {

int len;
char[] cp = password.ToCharArray();
len = cp.GetLength(0);
byte[] bt = new byte[len];

for (int i = 0; i < len; i++) { bt[i] = (byte)cp[i]; } symKey = new byte[8]; symIV = new byte[8]; SHA1_CSP sha = new SHA1_CSP(); sha.Write(bt); sha.CloseStream(); for (int i = 0; i < 8; i++) { symKey[i] = sha.Hash[i]; } for (int i = 8; i < 16; i++) { symIV[i - 8] = sha.Hash[i]; } return true; } catch (Exception e) { Console.WriteLine("An Exception Occurred in Generating eys:" + e.ToString()); return false; } } private static void EncryptData(string infile, string outfile) { try { FileStream fin = new FileStream(infile, FileMode.Open, FileAccess.Read); FileStream fout = new FileStream(outfile, FileMode.OpenOrCreate, FileAccess.Write); fout.SetLength(0); byte[] bin = new byte[4096]; long totlen = fin.Length; long rdlen = 0; int len; SymmetricAlgorithm des = new DES_CSP(); StoreCryptoStream scs = new StoreCryptoStream(fout); SymmetricStreamEncryptor sse = des.CreateEncryptor(symKey, symIV); SHA1_CSP sha = new SHA1_CSP(); sse.SetSink(sha); sha.SetSource(sse); sha.SetSink(scs); scs.SetSource(sha); while (rdlen < totlen) { len = fin.Read(bin, 0, 4096); sse.Write(bin, 0, len); rdlen = rdlen + len; } sse.CloseStream(); fin.Close(); fout.Close(); } catch (Exception e) { Console.WriteLine("An exception occurred while encrypting :" + e.ToString()); } } public static void Main(string[] args) { GenerateKey(args[0]); EncryptData(args[1], args[2]); } } [/csharp]

   
 

using System;
using System.Threading;

public delegate int DelegateClass(out DateTime start,out DateTime stop);

public class Starter {

    public static void Main() {
        DelegateClass del = MethodA;
        DateTime start;
        DateTime stop;
        IAsyncResult ar = del.BeginInvoke(out start, out stop,null, null);
        ar.AsyncWaitHandle.WaitOne();

        int elapse = del.EndInvoke(out start, out stop, ar);
        Console.WriteLine("Start time: {0}", start.ToLongTimeString());
        Console.WriteLine("Stop time: {0}", stop.ToLongTimeString());
        Console.WriteLine("Elapse time: {0} seconds",elapse);
    }
    public static int MethodA(out DateTime start, out DateTime stop) {
        start = DateTime.Now;
        Thread.Sleep(5000);

        stop = DateTime.Now;
        return (stop - start).Seconds;
    }
}

    

   
 

using System;
using System.Threading;

public delegate void DelegateClass();

public class Starter {
    public static void Main() {
        Console.WriteLine("Running on primary thread");
        try {
            DelegateClass del = MethodA;
            IAsyncResult ar = del.BeginInvoke(null, null);
            del.EndInvoke(ar);
        } catch (Exception except) {
            Console.WriteLine("Running on primary thread");
            Console.WriteLine("Exception caught: " + except.Message);
        }
    }

    public static void MethodA() {
        if (Thread.CurrentThread.IsThreadPoolThread == true) {
            Console.WriteLine("Running on a thread pool thread");
        } else {
            Console.WriteLine("Running on primary thread");
        }
        throw new Exception("failure");
    }
}

    

   
 
///////////////////////////////////////////////////////////////////////////////////////////////
//
//    This File is Part of the CallButler Open Source PBX (http://www.codeplex.com/callbutler
//
//    Copyright (c) 2005-2008, Jim Heising
//    All rights reserved.
//
//    Redistribution and use in source and binary forms, with or without modification,
//    are permitted provided that the following conditions are met:
//
//    * Redistributions of source code must retain the above copyright notice,
//      this list of conditions and the following disclaimer.
//
//    * Redistributions in binary form must reproduce the above copyright notice,
//      this list of conditions and the following disclaimer in the documentation and/or
//      other materials provided with the distribution.
//
//    * Neither the name of Jim Heising nor the names of its contributors may be
//      used to endorse or promote products derived from this software without specific prior
//      written permission.
//
//    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
//    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
//    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
//    IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
//    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
//    NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
//    PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
//    WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
//    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//    POSSIBILITY OF SUCH DAMAGE.
//
///////////////////////////////////////////////////////////////////////////////////////////////

using System;
using System.Collections.Generic;
using System.Text;
using System.Globalization;

namespace WOSI.Utilities
{
    public class GlobalizationUtils
    {
        public static CultureInfo GetTopParentCulture(CultureInfo culture)
        {
            CultureInfo currentCulture = culture;

            while (currentCulture.Parent != System.Globalization.CultureInfo.InvariantCulture)
                currentCulture = currentCulture.Parent;

            return currentCulture;
        }
    }
}