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程序中判断是否有管理员权限 #C#
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| using Microsoft.Win32; | |
| using System; | |
| using System.Collections.Generic; | |
| using System.Diagnostics; | |
| using System.Linq; | |
| using System.Runtime.InteropServices; | |
| using System.Security.Principal; | |
| using System.Text; | |
| using System.Threading.Tasks; | |
| namespace ToolsHelp | |
| { | |
| public static class UacHelper | |
| { | |
| private const string uacRegistryKey = "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System"; | |
| private const string uacRegistryValue = "EnableLUA"; | |
| private static uint STANDARD_RIGHTS_READ = 0x00020000; | |
| private static uint TOKEN_QUERY = 0x0008; | |
| private static uint TOKEN_READ = (STANDARD_RIGHTS_READ | TOKEN_QUERY); | |
| [DllImport("advapi32.dll", SetLastError = true)] | |
| [return: MarshalAs(UnmanagedType.Bool)] | |
| static extern bool OpenProcessToken(IntPtr ProcessHandle, UInt32 DesiredAccess, out IntPtr TokenHandle); | |
| [DllImport("advapi32.dll", SetLastError = true)] | |
| public static extern bool GetTokenInformation(IntPtr TokenHandle, TOKEN_INFORMATION_CLASS TokenInformationClass, IntPtr TokenInformation, uint TokenInformationLength, out uint ReturnLength); | |
| public enum TOKEN_INFORMATION_CLASS | |
| { | |
| TokenUser = 1, | |
| TokenGroups, | |
| TokenPrivileges, | |
| TokenOwner, | |
| TokenPrimaryGroup, | |
| TokenDefaultDacl, | |
| TokenSource, | |
| TokenType, | |
| TokenImpersonationLevel, | |
| TokenStatistics, | |
| TokenRestrictedSids, | |
| TokenSessionId, | |
| TokenGroupsAndPrivileges, | |
| TokenSessionReference, | |
| TokenSandBoxInert, | |
| TokenAuditPolicy, | |
| TokenOrigin, | |
| TokenElevationType, | |
| TokenLinkedToken, | |
| TokenElevation, | |
| TokenHasRestrictions, | |
| TokenAccessInformation, | |
| TokenVirtualizationAllowed, | |
| TokenVirtualizationEnabled, | |
| TokenIntegrityLevel, | |
| TokenUIAccess, | |
| TokenMandatoryPolicy, | |
| TokenLogonSid, | |
| MaxTokenInfoClass | |
| } | |
| public enum TOKEN_ELEVATION_TYPE | |
| { | |
| TokenElevationTypeDefault = 1, | |
| TokenElevationTypeFull, | |
| TokenElevationTypeLimited | |
| } | |
| public static bool IsUacEnabled | |
| { | |
| get | |
| { | |
| var uacKey = Registry.LocalMachine.OpenSubKey(uacRegistryKey, false); | |
| var result = uacKey.GetValue(uacRegistryValue).Equals(1); | |
| return result; | |
| } | |
| } | |
| public static bool IsProcessElevated | |
| { | |
| get | |
| { | |
| if (IsUacEnabled) | |
| { | |
| IntPtr tokenHandle; | |
| if (!OpenProcessToken(Process.GetCurrentProcess().Handle, TOKEN_READ, out tokenHandle)) | |
| { | |
| throw new ApplicationException("Could not get process token. Win32 Error Code: " + Marshal.GetLastWin32Error()); | |
| } | |
| var elevationResult = TOKEN_ELEVATION_TYPE.TokenElevationTypeDefault; | |
| var elevationResultSize = Marshal.SizeOf((int)elevationResult); | |
| uint returnedSize = 0; | |
| var elevationTypePtr = Marshal.AllocHGlobal(elevationResultSize); | |
| var success = GetTokenInformation(tokenHandle, TOKEN_INFORMATION_CLASS.TokenElevationType, elevationTypePtr, (uint)elevationResultSize, | |
| out returnedSize); | |
| if (success) | |
| { | |
| elevationResult = (TOKEN_ELEVATION_TYPE)Marshal.ReadInt32(elevationTypePtr); | |
| var isProcessAdmin = elevationResult == TOKEN_ELEVATION_TYPE.TokenElevationTypeFull; | |
| return isProcessAdmin; | |
| } | |
| throw new ApplicationException("Unable to determine the current elevation."); | |
| } | |
| var identity = WindowsIdentity.GetCurrent(); | |
| var principal = new WindowsPrincipal(identity); | |
| var result = principal.IsInRole(WindowsBuiltInRole.Administrator); | |
| return result; | |
| } | |
| } | |
| } | |
| } |
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