http://forums.techarena.in/software-development/1099472.htm
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Diagnostics;
namespace ShowHideDesktop
{
public partial class Form1 : Form
{
//[DllImport("user32.dll", EntryPoint = "FindWindowA")]
//private static extern long FindWindow(string lpClassName, string lpWindowName);
//[DllImport("user32.dll")]
//private static extern long GetWindow(long hwnd, long wCmd);
//[DllImport("user32.dll")]
//private static extern long ShowWindow(long hwnd, long nCmdShow);
////[DllImport("user32.dll")]
////private static extern long EnableWindow(long hwnd, long fEnable);
//[DllImport("user32", EntryPoint = "FindWindowExA", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
//public static extern long FindWindowEx(long hWnd1, long hWnd2, string lpsz1, string lpsz2);
//[DllImport("user32", CharSet = CharSet.Ansi, SetLastError = true, ExactSpelling = true)]
//public static extern long SetWindowPos(long hWnd, long hWndInsertAfter, long X, long Y, long cx, long cy, long wFlags);
//[DllImport("User32.dll")]
//public static extern int MessageBox(int h, string m, string c, int type);
[DllImport("User32.dll")]
public static extern int FindWindow(string lpClassName, string lpWindowName);
[DllImport("User32.dll")]
public static extern Int32 SendMessage(int hWnd, int Msg, int wParam, int lParam);
[DllImport("user32.dll")]
static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
[DllImport("user32.dll", SetLastError = true)]
static extern IntPtr FindWindowEx(IntPtr hwndParent, IntPtr hwndChildAfter, string lpszClass, string lpszWindow);
void ShowDesktopIcons(bool show)
{
IntPtr hWnd = FindWindowEx(IntPtr.Zero, IntPtr.Zero, "Progman", null);
if (show)
ShowWindow(hWnd, 5);
else
ShowWindow(hWnd, 0);
}
public Form1()
{
InitializeComponent();
}
private void showIconcheckBox_CheckedChanged(object sender, EventArgs e)
{
if (showIconcheckBox.Checked)
{
// ShowHideDesktopIcons(true);
ShowDesktopIcons(true);
}
else
ShowDesktopIcons(false);
}
private void Form1_Load(object sender, EventArgs e)
{
Process p = new Process();
p.StartInfo.WorkingDirectory = Environment.GetFolderPath(Environment.SpecialFolder.System);
p.StartInfo.FileName = "taskmgr.exe";
p.StartInfo.CreateNoWindow = true;
p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
p.Start();
}
private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{
const int WM_CLOSE = 0x0010;
int taskManager = FindWindow("#32770", "Windows Task Manager");
SendMessage(taskManager, WM_CLOSE, 0, 0);
}
//void ShowDesktopIcons(bool bVisible)
//{
// ShowWindow(GetWindow(FindWindow("Progman", "Program Manager"), GW_CHILD),
// (bVisible ? SW_SHOW : SW_HIDE));
//}
/////
///// method for handling the showing/hiding of the desktop icons
/////
/////
condition: show or hide
/////
//public bool ShowHideDesktopIcons(bool show)
//{
// try
// {
// //get a handle to the desktop ("Progman")
// long winHandle = FindWindowEx(0, 0, "Progman", null);
// //determine if we're showing or hiding
// switch (show)
// {
// case true:
// ShowWindow(winHandle, 0);
// break;
// case false:
// ShowWindow(winHandle, 5);
// break;
// }
// return true;
// }
// catch (Win32Exception ex)
// {
// // MessageBox.Show(ex.ToString());
// return false;
// }
//}
}
}
Disable network...
1. http://www.eggheadcafe.com/community/aspnet/2/10068229/how-to-disconnect-the-int.aspx
2. http://lamahashim.blogspot.com/2010/03/disabling-network-using-c.html
3. http://www.codeguru.com/forum/showthread.php?t=328228&highlight=internethangup
4. http://www.debugging.com/bug/4715
