C# 快速關機代碼

原創

2020-02-22 06:03

今天用到這個，網上找個不錯的，保存下來。

注意：這個方法是快速關機，不會保存你的任何未保存信息。

// 這個結構體將會傳遞給API。使用StructLayout [StructLayout(LayoutKind.Sequential, Pack = 1)] internal struct TokPriv1Luid { public int Count; public long Luid; public int Attr; } // 導入的方法必須是static extern的，並且沒有方法體。調用這些方法就相當於調用Windows API。 [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 flg, int rea); // 以下定義了在調用WinAPI時需要的常數。這些常數通常可以從Platform SDK的包含文件（頭文件）中找到 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_SHUTDOWN = 0x00000001; //internal const int EWX_LOGOFF = 0x00000000; //internal const int EWX_REBOOT = 0x00000002; //internal const int EWX_FORCE = 0x00000004; //internal const int EWX_POWEROFF = 0x00000008; //internal const int EWX_FORCEIFHUNG = 0x00000010; // 通過調用WinAPI實現關機，主要代碼再最後一行ExitWindowsEx，這調用了同名的WinAPI，正好是關機用的。 private static void DoExitWin(int flg) { 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(flg, 0); } /// <summary> /// 關機按鈕 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void btnShutDown_Click(object sender, EventArgs e) { DialogResult dr = MessageBox.Show(@"確定要關機嗎？請保存信息後按'是'，不關機按'否'", "提示信息", MessageBoxButtons.YesNo, MessageBoxIcon.Information); if (dr == DialogResult.Yes) { CommonClass.DoExitWin(CommonClass.EWX_SHUTDOWN); } }

轉載自：http://hi.baidu.com/youzhch/blog/item/215a1e4a5ee56f2009f7efd9.html