定时关机的小程序

  整理硬盘时,发现这个以前写的小程序,稍整理了一下放在这共享。

关键代码是调用API实现关机,借鉴了网上的程序代码,省了自己查windows API。如果侵犯版权, 请联系我
 
   
[StructLayout(LayoutKind.Sequential, Pack = 1 )]
internal struct TokPriv1Luid
{
public int Count;
public long Luid;
public int Attr;
}

[DllImport(
" kernel32.dll " , ExactSpelling = true )]
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 " , SetLastError = true )]
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 " , ExactSpelling = true , SetLastError = true )]
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 );
}
//重启
public static void Reboot()
{
DoExitWin(EWX_FORCE
| EWX_REBOOT);
}
//关机
public static void PowerOff()
{
DoExitWin(EWX_FORCE
| EWX_POWEROFF);
}
// 注销
public static void LogOff()
{
DoExitWin(EWX_FORCE
| EWX_LOGOFF);
}

关键是学习一下C# 如何使用非托管的 windows API。程序本身没什么技术含量。

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