NativeMethods.cs source code in C# .NET

                        Code:
                         / WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / infocard / Service / managed / Microsoft / InfoCards / NativeMethods.cs / 1 / NativeMethods.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace Microsoft.InfoCards 
{
    using System; 
    using System.Security; 
    using System.Text;
    using Microsoft.Win32.SafeHandles; 
    using System.Runtime.InteropServices;
    using System.Runtime.ConstrainedExecution;

 
    internal static unsafe  /*partial*/ class NativeMethods
    { 
 
        public const int E_BUSY = unchecked( (int)0x80070047 );
        public const int ERROR_ACCESS_DENIED  = 5; 

        public const int ERROR_NOT_ENOUGH_MEMORY  = 8;
        public const int ERROR_OUTOFMEMORY = 14;
 

        public const int E_NOTIMPL = unchecked( (int) 0x80004001 ); 
        public const int E_ACCESSDENIED = unchecked( (int)0x80070005 ); 

        public const int  COR_E_APPLICATION = unchecked((int)0x80131600); 
        public const int  COR_E_ARGUMENT = unchecked((int)0x80070057);

        public const int ERROR_INVALID_DATA = 13;
        public const int CRYPTPROTECT_LOCAL_MACHINE = 0x04; 
        public const int CRYPTPROTECT_UI_FORBIDDEN = 0x01;
        public const int CRYPTPROTECT_NO_RECOVERY = 0x20; 
        public const int CRYPTPROTECT_VERIFY_PROTECTION = 0x40; 
        public const int CRYPTPROTECT_AUDIT = 0x10;
        public const int CRYPTPROTECTMEMORY_SAME_PROCESS = 0x00; 
        public const int CRYPTPROTECTMEMORY_CROSS_PROCESS = 0x01;
        public const int CRYPTPROTECTMEMORY_SAME_LOGON = 0x02;

        public const int EVENT_MODIFY_STATE = 0x2; 
        public const int PROCESS_DUP_HANDLE = 0x0040;
        public const int TOKEN_QUERY        = 0x0008; 
        public const int TOKEN_IMPERSONATE  = 0x0004; 
        public const int TOKEN_DUPLICATE    = 0x0002;
        public const int TOKEN_ASSIGN_PRIMARY = 0x0001; 
        public const int TOKEN_ALL_ACCESS = 0x01ff;

        public const uint WAIT_TIMEOUT   = 258;
        public const uint WAIT_ABANDONED = 0x00000080; 
        public const uint WAIT_FAILED    = 0xffffffff;
 
        public const int CSIDL_LOCAL_APPDATA = 0x001c; 
        public const int SHGFP_TYPE_CURRENT = 0;
        public const int MAX_PATH          = 260; 

        public const int MUTEX_MODIFY_STATE = 0x0002;
        public const int SYNCHRONIZE        = 0x00100000;
 

        // 
        // Used for get volume information to detect ntfs / fat. 
        //
        public const int FILE_PERSISTENT_ACLS = 0x00000008; 

        public const int ERROR_CANCELLED = 1223;

        public const int SM_TABLETPC = 86; 

        [DllImport( "Crypt32.dll", 
                    EntryPoint      = "CryptProtectData", 
                    CharSet         = CharSet.Unicode,
                    ExactSpelling   = true, 
                    SetLastError    = true )]
        public static extern bool CryptProtectData(
            [In]
            IntPtr pDataIn, 
            [In, MarshalAs( UnmanagedType.LPWStr )]
            string szDataDescr, 
            [In] 
            IntPtr pOptionalEntropy,
            [In] 
            IntPtr pvReserved,
            [In]
            IntPtr pPromptStruct,
            [In, MarshalAs( UnmanagedType.I4 )] 
            int dwFlags,
            [In] 
            IntPtr pDataOut ); 

        [DllImport( "Crypt32.dll", 
                    EntryPoint      = "CryptUnprotectData",
                    CharSet         = CharSet.Unicode,
                    ExactSpelling   = true,
                    SetLastError    = true )] 
        public static extern bool CryptUnprotectData(
            [In] 
            IntPtr pDataIn, 
            [Out, MarshalAs( UnmanagedType.LPWStr )]
            System.Text.StringBuilder ppszDataDescr, 
            [In]
            IntPtr pOptionalEntropy,
            [In]
            IntPtr pvReserved, 
            [In]
            IntPtr pPromptStruct, 
            [In, MarshalAs( UnmanagedType.I4 )] 
            int dwFlags,
            [In] 
            IntPtr pDataOut );


        [DllImport( "Rpcrt4.dll", 
                    EntryPoint      = "RpcImpersonateClient",
                    CharSet         = CharSet.Unicode, 
                    ExactSpelling   = true, 
                    SetLastError    = false )]
        public static extern uint RpcImpersonateClient( 
            [In] IntPtr rpcBindingHandle );

        [DllImport( "Rpcrt4.dll",
                    EntryPoint      = "RpcRevertToSelfEx", 
                    CharSet         = CharSet.Unicode,
                    ExactSpelling   = true, 
                    SetLastError    = false )] 
        public static extern uint RpcRevertToSelfEx(
            [In] IntPtr rpcBindingHandle ); 

        [DllImport( "Rpcrt4.dll",
                    EntryPoint      = "I_RpcBindingInqLocalClientPID",
                    CharSet         = CharSet.Unicode, 
                    ExactSpelling   = true,
                    SetLastError    = false )] 
        public static extern uint I_RpcBindingInqLocalClientPID( 
            [In] IntPtr rpcBindingHandle,
            [Out] out uint pid ); 

        [DllImport( "advapi32.dll",
                    EntryPoint      = "RevertToSelf",
                    CharSet         = CharSet.Unicode, 
                    ExactSpelling   = true,
                    SetLastError    = true )] 
        public static extern bool RevertToSelf(); 

        [DllImport( "advapi32.dll", 
                    EntryPoint      = "ImpersonateLoggedOnUser",
                    CharSet         = CharSet.Unicode,
                    ExactSpelling   = true,
                    SetLastError    = true )] 
        public static extern bool ImpersonateLoggedOnUser( [In] IntPtr hToken );
 
        [DllImport( "kernel32.dll", 
                    EntryPoint      = "ProcessIdToSessionId",
                    CharSet         = CharSet.Unicode, 
                    ExactSpelling   = true,
                    SetLastError    = true )]
        public static extern bool ProcessIdToSessionId(
            [In] int pid, 
            [Out] out int tSSession
            ); 
 
        [DllImport( "kernel32.dll",
                EntryPoint      = "OpenProcess", 
                CharSet         = CharSet.Unicode,
                ExactSpelling   = true,
                SetLastError    = true )]
        public static extern SafeNativeHandle OpenProcess( 
            [In] int desiredAccess,
            [In] bool inheritHandle, 
            [In] int processId 
            );
 
        [DllImport( "kernel32.dll",
                EntryPoint      = "DuplicateHandle",
                CharSet         = CharSet.Unicode,
                ExactSpelling   = true, 
                SetLastError    = true )]
        public static extern bool DuplicateHandle( 
            [In] SafeNativeHandle sourceProcessHandle, 
            [In] SafeWaitHandle sourceHandle,
            [In] SafeNativeHandle targetProcessHandle, 
            [Out] out SafeWaitHandle targetHandle,
            [In] int desiredAccess,
            [In] bool inheritHandle,
            [In] int options 
                );
 
        [DllImport( "kernel32.dll", 
                EntryPoint      = "GetCurrentProcess",
                CharSet         = CharSet.Unicode, 
                ExactSpelling   = true,
                SetLastError    = true )]
        public static extern IntPtr GetCurrentProcess();
 
        public enum SecurityImpersonationLevel
        { 
            SecurityAnonymous, 
            SecurityIdentification,
            SecurityImpersonation, 
            SecurityDelegation
        };

        [DllImport( "Kernel32.dll", 
                EntryPoint      = "LocalFree",
                CharSet         = CharSet.Unicode, 
                ExactSpelling   = true, 
                SetLastError    = true ) ]
        public static extern IntPtr LocalFree( IntPtr hMem ); 

        [DllImport( "advapi32.dll",
                EntryPoint      ="CryptDecrypt",
                CharSet         = CharSet.Unicode, 
                ExactSpelling   = true,
                SetLastError    = true ) ] 
        public static extern bool CryptDecrypt( 
              [In] SafeCryptoKeyHandle hKey,
              [In] IntPtr hHash, 
              [In] UInt32 Final,
              [In] UInt32 Flags,
              [In] IntPtr data,
              [In,Out] ref UInt32 length ); 

        [DllImport( "advapi32.dll", 
                    EntryPoint      ="CryptEncrypt", 
                    CharSet         = CharSet.Unicode,
                    ExactSpelling   = true, 
                    SetLastError    = true ) ]
        public static extern bool CryptEncrypt(
              [In] SafeCryptoKeyHandle hKey,
              [In] IntPtr hHash, 
              [In] UInt32 Final,
              [In] UInt32 Flags, 
              [In] IntPtr data, 
              [In,Out] ref UInt32 length,
              [In] UInt32 bufLength ); 



 
        [DllImport("Kernel32.dll",
                    EntryPoint      ="RtlZeroMemory", 
                    CharSet         = CharSet.Unicode, 
                    ExactSpelling   = true,
                    SetLastError    = true ) ] 
        public static extern void ZeroMemory( [In] IntPtr dest, [In] Int32 size );


        // 
        // In order to support certs with unicode values, we explicitly specify the wide version of CertGetNameString.
        // CertGetNameStringW expects an ANSI string as input for pvTypePara when CERT_NAME_ATTR_TYPE is defined- 
        // marshal pvTypePara as an LPStr. 
        //
        [DllImport( "Crypt32.dll", 
                    EntryPoint      = "CertGetNameStringW",
                    CharSet         = CharSet.Unicode,
                    ExactSpelling   = true,
                    SetLastError    = false )] 
        public static extern int CertGetNameString(
            IntPtr pCertContext, 
            int dwType, 
            int dwFlags,
            [In, MarshalAs( UnmanagedType.LPStr ) ] 
            string pvTypePara,
            [Out]
            System.Text.StringBuilder pszNameString,
            int cchNameString 
        );
 
 
        [DllImport("Kernel32.dll",
                   EntryPoint   ="WTSGetActiveConsoleSessionId", 
                   CharSet = CharSet.Unicode,
                   ExactSpelling = true,
                   SetLastError = false )]
        public static extern int WTSGetActiveConsoleSessionId(); 

 
        [DllImport("user32.dll", 
                  EntryPoint ="GetSystemMetrics",
                  CharSet = CharSet.Unicode, 
                  ExactSpelling = true,
                  SetLastError = false )]
        public static extern int GetSystemMetrics( int nIndex );
 
        //
        // CloseHandle should only be called by SafeHandle classes to ensure we do not 
        // corrupt state of the IntPtr passed in 
        //
        public sealed class SafeHandleOnlyMethods 
        {
            private SafeHandleOnlyMethods()
            {
 
            }
 
            [DllImport( "Kernel32.dll", 
                 EntryPoint = "CloseHandle",
                 CharSet = CharSet.Unicode, 
                 ExactSpelling = true,
                 SetLastError = true )]
            [ReliabilityContract( Consistency.WillNotCorruptState, Cer.Success )]
            public static extern bool CloseHandle( [In] IntPtr handle ); 

        } 
 

    } 


}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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