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‎Example/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=v4.5.2" />
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</startup>
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</configuration>

‎Example/Example.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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<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
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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>{B38BB1AE-DE16-41F1-926F-A1DA233B0A30}</ProjectGuid>
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<OutputType>Exe</OutputType>
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<AppDesignerFolder>Properties</AppDesignerFolder>
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<RootNamespace>Example</RootNamespace>
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<AssemblyName>Example</AssemblyName>
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<TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
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<FileAlignment>512</FileAlignment>
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<AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
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<PlatformTarget>AnyCPU</PlatformTarget>
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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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<PlatformTarget>AnyCPU</PlatformTarget>
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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="dnlib">
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<HintPath>..\dnlib.dll</HintPath>
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</Reference>
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<Reference Include="System" />
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<Reference Include="System.Core" />
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<Reference Include="System.Xml.Linq" />
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<Reference Include="System.Data.DataSetExtensions" />
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<Reference Include="Microsoft.CSharp" />
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<Reference Include="System.Data" />
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<Reference Include="System.Net.Http" />
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<Reference Include="System.Xml" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="Program.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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</ItemGroup>
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<ItemGroup>
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<None Include="App.config" />
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</ItemGroup>
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<ItemGroup>
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<ProjectReference Include="..\dnpatch\dnpatch.csproj">
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<Project>{14ca7a28-7fa8-40a0-abc6-81e9f36318de}</Project>
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<Name>dnpatch</Name>
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</ProjectReference>
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</ItemGroup>
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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>

‎Example/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.Text;
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using System.Threading.Tasks;
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using dnlib.DotNet;
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using dnlib.DotNet.Emit;
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using dnpatch;
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namespace Example
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{
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class Program
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{
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static void Main(string[] args)
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{
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/*
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* Replaces all instructions with your own body
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*/
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Patcher p = new Patcher("Test.exe");
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Instruction[] opcodesConsoleWriteLine = {
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Instruction.Create(OpCodes.Ldstr, "Hello Sir"), // String to print
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Instruction.Create(OpCodes.Call, p.BuildMemberRef("System", "Console", "WriteLine")), // Console.WriteLine call
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Instruction.Create(OpCodes.Ret) // Alaway return smth
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};
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Target target = new Target()
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{
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Namespace = "Test",
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Class = "Program",
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Method = "Print",
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Instructions = opcodesConsoleWriteLine
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};
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p.Patch(target);
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p.Save("Test1.exe");
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/*
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* Replaces the instructions at the given index
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*/
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p = new Patcher("Test.exe");
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Instruction[] opCodesManipulateOffset = {
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Instruction.Create(OpCodes.Ldstr, "Place easter egg here 1"),
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Instruction.Create(OpCodes.Ldstr, "Place easter egg here 2")
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};
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int[] indexes = {
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4,
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8
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};
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target = new Target()
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{
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Namespace = "Test",
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Class = "Program",
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Method = "PrintAlot",
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Instructions = opCodesManipulateOffset,
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Indexes = indexes
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};
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p.Patch(target);
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p.Save("Test2.exe");
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/*
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* Replaces the instructions at the given index in a nested class
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*/
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p = new Patcher("Test.exe");
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Instruction opCodeManipulateOffsetNestedClass = Instruction.Create(OpCodes.Ldstr, "FooBarCode");
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int index = 0;
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string nestedClass = "Bar";
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target = new Target()
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{
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Namespace = "Test",
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Class = "Foo",
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NestedClass = nestedClass,
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Method = "NestedPrint",
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Instruction = opCodeManipulateOffsetNestedClass,
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Index = index
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};
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p.Patch(target);
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p.Save("Test3.exe");
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/*
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* Replaces the instructions at the given index in a big nested class
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*/
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p = new Patcher("Test.exe");
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Instruction opCodeManipulateOffsetNestedClasses = Instruction.Create(OpCodes.Ldstr, "Eat fruits");
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index = 0;
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string[] nestedClasses = {
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"Am",
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"A",
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"Burger"
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};
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target = new Target()
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{
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Namespace = "Test",
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Class = "I",
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NestedClasses = nestedClasses,
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Method = "Eat",
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Instruction = opCodeManipulateOffsetNestedClasses,
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Index = index
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};
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p.Patch(target);
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p.Save(true);
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}
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}
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}

‎Example/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("Example")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("Example")]
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[assembly: AssemblyCopyright("Copyright © 2016")]
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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("b38bb1ae-de16-41f1-926f-a1da233b0a30")]
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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")]

‎Test/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=v4.5.2" />
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</startup>
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</configuration>

‎Test/Foo.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.Text;
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using System.Threading.Tasks;
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namespace Test
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{
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class Foo
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{
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public class Bar
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{
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public void NestedPrint()
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{
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Console.WriteLine("Coded with Swag");
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}
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}
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}
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}

‎Test/I.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.Text;
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using System.Threading.Tasks;
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namespace Test
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{
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class I
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{
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public class Am
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{
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public class A
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{
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public class Burger
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{
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public void Eat()
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{
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Console.WriteLine("Eating... Hold on.");
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}
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}
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}
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}
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}
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}

‎Test/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.Text;
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using System.Threading.Tasks;
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namespace Test
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{
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class Program
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{
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static void Main(string[] args)
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{
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Print();
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Check(10);
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PrintAlot();
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Foo.Bar foobar = new Foo.Bar();
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foobar.NestedPrint();
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I.Am.A.Burger burger = new I.Am.A.Burger();
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burger.Eat();
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Console.Read();
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}
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static void Print()
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{
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Console.WriteLine("Hello");
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}
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static void Check(int i)
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{
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Console.WriteLine(i > 0 ? "Error" : "Secret Key Here");
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}
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static void PrintAlot()
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{
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Console.WriteLine("Hello");
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Console.WriteLine("Hello");
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Console.WriteLine("Hello");
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Console.WriteLine("Hello");
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Console.WriteLine("Hello");
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Console.WriteLine("Hello");
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Console.WriteLine("Hello");
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Console.WriteLine("Hello");
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}
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}
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}

‎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("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("Test")]
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[assembly: AssemblyCopyright("Copyright © 2016")]
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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("773f8b20-46d8-4dcc-a146-92e92e8b76f5")]
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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")]

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