Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / BuildTasks / Microsoft / Build / Tasks / Windows / GetWinFXPath.cs / 1305600 / GetWinFXPath.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: Return the path for current WinFX runtime. // // // History: // 11/16/2005 weibz Created // //--------------------------------------------------------------------------- using System; using System.IO; using System.Collections; using System.Globalization; using System.Diagnostics; using System.Reflection; using System.Resources; using System.Runtime.InteropServices; using Microsoft.Build.Framework; using Microsoft.Build.Utilities; using MS.Utility; using MS.Internal.Tasks; // Since we disable PreSharp warnings in this file, PreSharp warning is unknown to C# compiler. // We first need to disable warnings about unknown message numbers and unknown pragmas. #pragma warning disable 1634, 1691 namespace Microsoft.Build.Tasks.Windows { #region GetWinFXPath Task class ////// Return the directory of current WinFX run time. /// public sealed class GetWinFXPath : Task { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Constrcutor /// public GetWinFXPath() : base(SR.ResourceManager) { } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- #region Public Methods ////// ITask Execute method /// ///public override bool Execute() { bool ret = true; try { TaskHelper.DisplayLogo(Log, SR.Get(SRID.GetWinFXPathTask)); bool isWow64; isWow64 = IsWow64CLRRun(); if (isWow64) { WinFXPath = WinFXWowPath; } else { WinFXPath = WinFXNativePath; } } catch (Exception e) { // PreSharp Complaint 6500 - do not handle null-ref or SEH exceptions. if (e is NullReferenceException || e is SEHException) { throw; } else { string message; string errorId; errorId = Log.ExtractMessageCode(e.Message, out message); if (String.IsNullOrEmpty(errorId)) { errorId = UnknownErrorID; message = SR.Get(SRID.UnknownBuildError, message); } Log.LogError(null, errorId, null, null, 0, 0, 0, 0, message, null); } ret = false; } #pragma warning disable 6500 catch // Non-CLS compliant errors { Log.LogErrorWithCodeFromResources(SRID.NonClsError); ret = false; } #pragma warning restore 6500 return ret; } #endregion Public Methods //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ #region Public Properties /// /// The path for native WinFX runtime. /// [Required] public string WinFXNativePath { get { return _winFXNativePath; } set { _winFXNativePath = value; } } ////// The path for WoW WinFX run time. /// [Required] public string WinFXWowPath { get { return _winFXWowPath; } set { _winFXWowPath = value; } } ////// The real path for the WinFX runtime /// [Output] public string WinFXPath { get { return _winFXPath; } set { _winFXPath = value; } } #endregion Public Properties //----------------------------------------------------- // // Private Methods // //------------------------------------------------------ #region Private Methods // PInvoke delegate for IsWow64Process [UnmanagedFunctionPointer(CallingConvention.Winapi)] private delegate bool IsWow64ProcessDelegate([In] IntPtr hProcess, [Out] out bool Wow64Process); [DllImport(Kernel32Dll, PreserveSig = true, CharSet = CharSet.Unicode)] private static extern IntPtr LoadLibrary(string fileName); [DllImport(Kernel32Dll, PreserveSig = true)] private static extern bool FreeLibrary([In] IntPtr module); [DllImport(Kernel32Dll, PreserveSig = true, CharSet = CharSet.Unicode)] private static extern IntPtr GetProcAddress(IntPtr module, string procName); [DllImport(Kernel32Dll, PreserveSig = true)] private static extern IntPtr GetCurrentProcess(); //// Detect if the msbuild is running under WOW64 environment. // static private bool IsWow64CLRRun() { bool isWow64 = false; IntPtr NullIntPtr = new IntPtr(0); IntPtr kernel32Dll = LoadLibrary(Kernel32Dll); if (kernel32Dll != NullIntPtr) { try { IntPtr isWow64ProcessHandle = GetProcAddress(kernel32Dll, IsWow64ProcessMethodName); // if the entry point is missing, it cannot be Wow64 if (isWow64ProcessHandle != NullIntPtr) { // entry point present, check if running in WOW64 IsWow64ProcessDelegate isWow64Process = (IsWow64ProcessDelegate)Marshal.GetDelegateForFunctionPointer(isWow64ProcessHandle, typeof(IsWow64ProcessDelegate)); isWow64Process(GetCurrentProcess(), out isWow64); } } finally { FreeLibrary(kernel32Dll); } } return isWow64; } #endregion Private Methods //----------------------------------------------------- // // Private Properties // //----------------------------------------------------- //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ #region Private Fields private string _winFXNativePath = string.Empty; private string _winFXWowPath = string.Empty; private string _winFXPath = string.Empty; private const string UnknownErrorID = "FX1000"; private const string Kernel32Dll = "kernel32.dll"; private const string IsWow64ProcessMethodName = "IsWow64Process"; #endregion Private Fields } #endregion GetWinFXPath Task class } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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