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Erick Asto Oblitas
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->Service NTP (Get CurrentDate) ->Basic Service Configuration
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‎.gitattributes‎

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###############################################################################
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# Set default behavior to automatically normalize line endings.
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###############################################################################
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* text=auto
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###############################################################################
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# Set default behavior for command prompt diff.
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#
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# This is need for earlier builds of msysgit that does not have it on by
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# default for csharp files.
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# Note: This is only used by command line
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###############################################################################
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#*.cs diff=csharp
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###############################################################################
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# Set the merge driver for project and solution files
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#
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# Merging from the command prompt will add diff markers to the files if there
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# are conflicts (Merging from VS is not affected by the settings below, in VS
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# the diff markers are never inserted). Diff markers may cause the following
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# file extensions to fail to load in VS. An alternative would be to treat
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# these files as binary and thus will always conflict and require user
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# intervention with every merge. To do so, just uncomment the entries below
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###############################################################################
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#*.sln merge=binary
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#*.csproj merge=binary
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#*.vbproj merge=binary
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#*.vcxproj merge=binary
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#*.vcproj merge=binary
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#*.dbproj merge=binary
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#*.fsproj merge=binary
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#*.lsproj merge=binary
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#*.wixproj merge=binary
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#*.modelproj merge=binary
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#*.sqlproj merge=binary
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#*.wwaproj merge=binary
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###############################################################################
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# behavior for image files
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#
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# image files are treated as binary by default.
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###############################################################################
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#*.jpg binary
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#*.png binary
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#*.gif binary
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###############################################################################
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# diff behavior for common document formats
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#
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# Convert binary document formats to text before diffing them. This feature
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# is only available from the command line. Turn it on by uncommenting the
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# entries below.
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###############################################################################
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#*.doc diff=astextplain
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#*.DOC diff=astextplain
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#*.docx diff=astextplain
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#*.DOCX diff=astextplain
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#*.dot diff=astextplain
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#*.DOT diff=astextplain
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#*.pdf diff=astextplain
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#*.PDF diff=astextplain
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#*.rtf diff=astextplain
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#*.RTF diff=astextplain

‎WindowsShutdown/WindowsShutDown.Service.Test/Properties/AssemblyInfo.cs‎

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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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// General Information about an assembly is controlled through the following
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// set of attributes. Change these attribute values to modify the information
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// associated with an assembly.
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[assembly: AssemblyTitle("WindowsShutDown.Service.Test")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("WindowsShutDown.Service.Test")]
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[assembly: AssemblyCopyright("Copyright © 2015")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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// Setting ComVisible to false makes the types in this assembly not visible
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// to COM components. If you need to access a type in this assembly from
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// COM, set the ComVisible attribute to true on that type.
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[assembly: ComVisible(false)]
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// The following GUID is for the ID of the typelib if this project is exposed to COM
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[assembly: Guid("afb54a8e-1c26-41ca-9b61-88d1fa43dcae")]
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// Version information for an assembly consists of the following four values:
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//
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// Major Version
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// Minor Version
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// Build Number
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// Revision
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//
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// You can specify all the values or you can default the Build and Revision Numbers
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// by using the '*' as shown below:
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// [assembly: AssemblyVersion("1.0.*")]
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[assembly: AssemblyVersion("1.0.0.0")]
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[assembly: AssemblyFileVersion("1.0.0.0")]

‎WindowsShutdown/WindowsShutDown.Service.Test/TestNTPService.cs‎

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using System;
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using Microsoft.VisualStudio.TestTools.UnitTesting;
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using WindowsShutdown.Service;
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namespace WindowsShutDown.Service.Test
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{
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[TestClass]
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public class TestNTPService
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{
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[TestMethod]
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public void GetCurrentDate()
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{
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DateTime expected = DateTime.Now;
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NTPService ntpService = new NTPService();
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var currentDate = ntpService.GetNetworkTime();
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Console.WriteLine($"Current: {expected.ToLocalTime()}");
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Console.WriteLine($"NTP: {currentDate.ToLocalTime()}");
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Assert.AreEqual(expected.Date, currentDate.Date);
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}
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}
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}

‎WindowsShutdown/WindowsShutDown.Service.Test/WindowsShutDown.Service.Test.csproj‎

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
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<ProjectGuid>{AFB54A8E-1C26-41CA-9B61-88D1FA43DCAE}</ProjectGuid>
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<OutputType>Library</OutputType>
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<AppDesignerFolder>Properties</AppDesignerFolder>
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<RootNamespace>WindowsShutDown.Service.Test</RootNamespace>
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<AssemblyName>WindowsShutDown.Service.Test</AssemblyName>
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<TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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<ProjectTypeGuids>{3AC096D0-A1C2-E12C-1390-A8335801FDAB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
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<VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
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<VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
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<ReferencePath>$(ProgramFiles)\Common Files\microsoft shared\VSTT\$(VisualStudioVersion)\UITestExtensionPackages</ReferencePath>
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<IsCodedUITest>False</IsCodedUITest>
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<TestProjectType>UnitTest</TestProjectType>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
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<DebugType>pdbonly</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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</ItemGroup>
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<Choose>
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<When Condition="('$(VisualStudioVersion)' == '10.0' or '$(VisualStudioVersion)' == '') and '$(TargetFrameworkVersion)' == 'v3.5'">
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<ItemGroup>
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<Reference Include="Microsoft.VisualStudio.QualityTools.UnitTestFramework, Version=10.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
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</ItemGroup>
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</When>
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<Otherwise>
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<ItemGroup>
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<Reference Include="Microsoft.VisualStudio.QualityTools.UnitTestFramework" />
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</ItemGroup>
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</Otherwise>
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</Choose>
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<ItemGroup>
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<Compile Include="TestNTPService.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\WindowsShutdown.Service\WindowsShutdown.Service.csproj">
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<Project>{fbf54003-68eb-4ffe-a36f-f006b63620f4}</Project>
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<Name>WindowsShutdown.Service</Name>
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</ProjectReference>
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</ItemGroup>
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<Choose>
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<When Condition="'$(VisualStudioVersion)' == '10.0' And '$(IsCodedUITest)' == 'True'">
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<ItemGroup>
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<Reference Include="Microsoft.VisualStudio.QualityTools.CodedUITestFramework, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
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<Private>False</Private>
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</Reference>
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<Reference Include="Microsoft.VisualStudio.TestTools.UITest.Common, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
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<Private>False</Private>
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</Reference>
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<Reference Include="Microsoft.VisualStudio.TestTools.UITest.Extension, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
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<Private>False</Private>
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</Reference>
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<Reference Include="Microsoft.VisualStudio.TestTools.UITesting, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
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<Private>False</Private>
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</Reference>
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</ItemGroup>
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</When>
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</Choose>
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<Import Project="$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets" Condition="Exists('$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets')" />
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
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Other similar extension points exist, see Microsoft.Common.targets.
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<Target Name="BeforeBuild">
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</Target>
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<Target Name="AfterBuild">
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</Target>
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-->
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</Project>

‎WindowsShutdown/WindowsShutdown.Service/App.config‎

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<?xml version="1.0" encoding="utf-8" ?>
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<configuration>
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<startup>
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<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
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</startup>
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</configuration>

‎WindowsShutdown/WindowsShutdown.Service/NTPService.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using System.Threading.Tasks;
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namespace WindowsShutdown.Service
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{
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public class NTPService
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{
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public DateTime GetNetworkTime()
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{
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const string ntpServer = "pool.ntp.org";
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var ntpData = new byte[48];
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ntpData[0] = 0x1B; //LeapIndicator = 0 (no warning), VersionNum = 3 (IPv4 only), Mode = 3 (Client Mode)
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var addresses = Dns.GetHostEntry(ntpServer).AddressList;
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var ipEndPoint = new IPEndPoint(addresses[0], 123);
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var socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
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socket.Connect(ipEndPoint);
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socket.Send(ntpData);
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socket.Receive(ntpData);
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socket.ReceiveTimeout = 3000;
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socket.Close();
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ulong intPart = (ulong)ntpData[40] << 24 | (ulong)ntpData[41] << 16 | (ulong)ntpData[42] << 8 | (ulong)ntpData[43];
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ulong fractPart = (ulong)ntpData[44] << 24 | (ulong)ntpData[45] << 16 | (ulong)ntpData[46] << 8 | (ulong)ntpData[47];
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var milliseconds = (intPart * 1000) + ((fractPart * 1000) / 0x100000000L);
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var networkDateTime = (new DateTime(1900, 1, 1)).AddMilliseconds((long)milliseconds);
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return networkDateTime;
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}
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}
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}

‎WindowsShutdown/WindowsShutdown.Service/Program.cs‎

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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.ServiceProcess;
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using System.Text;
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using System.Threading.Tasks;
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namespace WindowsShutdown.Service
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{
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static class Program
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{
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/// <summary>
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/// The main entry point for the application.
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/// </summary>
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static void Main()
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{
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ServiceBase[] ServicesToRun;
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ServicesToRun = new ServiceBase[]
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{
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new ShutdownService()
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};
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ServiceBase.Run(ServicesToRun);
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}
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}
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}

‎WindowsShutdown/WindowsShutdown.Service/Properties/AssemblyInfo.cs‎

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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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// General Information about an assembly is controlled through the following
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// set of attributes. Change these attribute values to modify the information
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// associated with an assembly.
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[assembly: AssemblyTitle("WindowsShutdown.Service")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("WindowsShutdown.Service")]
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[assembly: AssemblyCopyright("Copyright © 2015")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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// Setting ComVisible to false makes the types in this assembly not visible
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// to COM components. If you need to access a type in this assembly from
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// COM, set the ComVisible attribute to true on that type.
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[assembly: ComVisible(false)]
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// The following GUID is for the ID of the typelib if this project is exposed to COM
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[assembly: Guid("fbf54003-68eb-4ffe-a36f-f006b63620f4")]
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// Version information for an assembly consists of the following four values:
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//
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// Major Version
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// Minor Version
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// Build Number
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// Revision
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//
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// You can specify all the values or you can default the Build and Revision Numbers
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// by using the '*' as shown below:
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// [assembly: AssemblyVersion("1.0.*")]
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[assembly: AssemblyVersion("1.0.0.0")]
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[assembly: AssemblyFileVersion("1.0.0.0")]

‎WindowsShutdown/WindowsShutdown.Service/ShutdownService.Designer.cs‎

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