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Programming language: C#
License: MIT License
Tags: Interoperability    
Latest version: v3.0.1.0

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README

LegacyWrapper

About

LegacyWrapper uses a wrapper process to call dlls from a process of the opposing architecture (X86 or AMD64).

Since you can't load a dll of another architecture directly, the wrapper utilizes a named pipe to abstract the call. You won't notice this though, because all the magic is hidden behind a single static method.

NuGet Package

There is a NuGet package available here: Codefoundry.LegacyWrapper @ nuget.org

Usage

If you want to compile the LegacyWrapper yourself, make sure to place both the wrapper executable, LegacyWrapperClient.dll and LegacyWrapper.Common.dll in your directory.

// Define a proxy interface with matching method names and signatures
// The interface must be derived from IDisposable!
[LegacyDllImport("User32.dll")]
public interface IUser32Dll : IDisposable
{
    [LegacyDllMethod(CallingConvention = CallingConvention.Winapi)]
    int GetSystemMetrics(int nIndex);
}

// Create configuration
IWrapperConfig configuration = WrapperConfigBuilder.Create()
        .TargetArchitecture(TargetArchitecture.X86)
        .Build();

// Create new Wrapper client providing the proxy interface
// Remember to ensure a call to the Dispose()-Method!
using (var client = WrapperProxyFactory<IUser32Dll>.GetInstance(configuration))
{
    // Make calls - it's that simple!
    int x = client.GetSystemMetrics(0);
    int y = client.GetSystemMetrics(1);
}

Please note that loading a 64bit dll will only work on 64bit operating systems.

Further reading

View this blog post to obtain a basic understanding of how the library works internally.

Contributing

Feel free to submit any suggestions/issues and contribute to LegacyWrapper.

License

Copyright (c) 2019, Franz Wimmer. (MIT License)

See LICENSE for more info.


*Note that all licence references and agreements mentioned in the LegacyWrapper README section above are relevant to that project's source code only.