【C语言教程】关机功能详解

所需工具：

C++

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 文章源自灵鲨社区-https://www.0s52.com/bcjc/cyyjc/12512.html

教程如下

在网上找的一个在C#中实现关机的类，非常简单，就是一个winapi的封装。在这里记录一下，以备不时之需。文章源自灵鲨社区-https://www.0s52.com/bcjc/cyyjc/12512.html

[php]
public static class Shutdown
{
[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);文章源自灵鲨社区-https://www.0s52.com/bcjc/cyyjc/12512.html

[DllImport("user32.dll", ExactSpelling = true, SetLastError = true)]文章源自灵鲨社区-https://www.0s52.com/bcjc/cyyjc/12512.html

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;文章源自灵鲨社区-https://www.0s52.com/bcjc/cyyjc/12512.html

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);
}文章源自灵鲨社区-https://www.0s52.com/bcjc/cyyjc/12512.html

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);
}
}
[/php]