我有一个应用程序需要检测是否正在升高的特权。我现在代码建立这样的:
函数功能 ： 是否是管理员
private static bool _isAdministrator(){ WindowsIdentity identity = WindowsIdentity.GetCurrent(); WindowsPrincipal principal = new WindowsPrincipal(identity); return principal.IsInRole (WindowsBuiltInRole.Administrator);
}
类主要功能：
1：UAC状态查询
2：用户状态查询
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 { RegistryKey uacKey = Registry.LocalMachine.OpenSubKey(uacRegistryKey, false ); bool 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()); } TOKEN_ELEVATION_TYPE elevationResult = TOKEN_ELEVATION_TYPE.TokenElevationTypeDefault; int elevationResultSize = Marshal.SizeOf(( int )elevationResult); uint returnedSize = 0 ; IntPtr elevationTypePtr = Marshal.AllocHGlobal(elevationResultSize); bool success = GetTokenInformation(tokenHandle, TOKEN_INFORMATION_CLASS.TokenElevationType, elevationTypePtr, ( uint )elevationResultSize, out returnedSize); if (success) { elevationResult = (TOKEN_ELEVATION_TYPE)Marshal.ReadInt32(elevationTypePtr); bool isProcessAdmin = elevationResult == TOKEN_ELEVATION_TYPE.TokenElevationTypeFull; return isProcessAdmin; } else { throw new ApplicationException( " Unable to determine the current elevation. " ); } } else { WindowsIdentity identity = WindowsIdentity.GetCurrent(); WindowsPrincipal principal = new WindowsPrincipal(identity); bool result = principal.IsInRole(WindowsBuiltInRole.Administrator); return result; } } }}
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