C# 如何部署使用C++/CLI库

我有一个C#库，它使用AnyCPU构建，但依赖于一些C++/CLI库。我已经为x86和x64窗口编译了C++/CLI。似乎我只能向C#项目添加一个C++/CLI库的引用（否则文件会相互重写）。我认为有一个x86和x64文件夹是可能的，这两个库将分别位于其中。但当我尝试这个方法时，我会遇到运行时异常，即无法找到库

---

有没有办法将x86和x64都包含在我的AnyCpu库中，以便在部署时调用应用程序可以决定是要x86还是x64

基本上你需要做以下几点：

    public NativeLibraryLoader(string path32, string path64)
    {
        if (!File.Exists(path32))
            throw new FileNotFoundException("32-bit library not found.", path32);

        if (!File.Exists(path64))
            throw new FileNotFoundException("64-bit library not found.", path64);

        string path;

        switch (RuntimeInformation.ProcessArchitecture)
        {
            case Architecture.X86:
                path = path32;
                break;
            case Architecture.X64:
                path = path64;
                break;
            default:
                throw new PlatformNotSupportedException();
        }

        ...
    }

    /// <summary>
    ///     https://msdn.microsoft.com/en-us/library/windows/desktop/ms684175(v=vs.85).aspx
    /// </summary>
    /// <param name="lpLibFileName"></param>
    /// <returns></returns>
    [DllImport("kernel32.dll", EntryPoint = "LoadLibrary", SetLastError = true, CharSet = CharSet.Unicode)]
    public static extern IntPtr LoadLibrary(string lpLibFileName);

• 检测进程体系结构（x86或x64）
• 根据架构加载正确的库

根据流程架构获取要加载的库的路径：

    public NativeLibraryLoader(string path32, string path64)
    {
        if (!File.Exists(path32))
            throw new FileNotFoundException("32-bit library not found.", path32);

        if (!File.Exists(path64))
            throw new FileNotFoundException("64-bit library not found.", path64);

        string path;

        switch (RuntimeInformation.ProcessArchitecture)
        {
            case Architecture.X86:
                path = path32;
                break;
            case Architecture.X64:
                path = path64;
                break;
            default:
                throw new PlatformNotSupportedException();
        }

        ...
    }

    /// <summary>
    ///     https://msdn.microsoft.com/en-us/library/windows/desktop/ms684175(v=vs.85).aspx
    /// </summary>
    /// <param name="lpLibFileName"></param>
    /// <returns></returns>
    [DllImport("kernel32.dll", EntryPoint = "LoadLibrary", SetLastError = true, CharSet = CharSet.Unicode)]
    public static extern IntPtr LoadLibrary(string lpLibFileName);

使用

LoadLibrary

加载本机库：

    public NativeLibraryLoader(string path32, string path64)
    {
        if (!File.Exists(path32))
            throw new FileNotFoundException("32-bit library not found.", path32);

        if (!File.Exists(path64))
            throw new FileNotFoundException("64-bit library not found.", path64);

        string path;

        switch (RuntimeInformation.ProcessArchitecture)
        {
            case Architecture.X86:
                path = path32;
                break;
            case Architecture.X64:
                path = path64;
                break;
            default:
                throw new PlatformNotSupportedException();
        }

        ...
    }

    /// <summary>
    ///     https://msdn.microsoft.com/en-us/library/windows/desktop/ms684175(v=vs.85).aspx
    /// </summary>
    /// <param name="lpLibFileName"></param>
    /// <returns></returns>
    [DllImport("kernel32.dll", EntryPoint = "LoadLibrary", SetLastError = true, CharSet = CharSet.Unicode)]
    public static extern IntPtr LoadLibrary(string lpLibFileName);

//
///     https://msdn.microsoft.com/en-us/library/windows/desktop/ms684175（v=vs.85）.aspx
/// 
/// 
/// 
[DllImport（“kernel32.dll”，EntryPoint=“LoadLibrary”，SetLastError=true，CharSet=CharSet.Unicode）]
公共静态外部IntPtr加载库（字符串lpLibFileName）；

完整示例：

    public NativeLibraryLoader(string path32, string path64)
    {
        if (!File.Exists(path32))
            throw new FileNotFoundException("32-bit library not found.", path32);

        if (!File.Exists(path64))
            throw new FileNotFoundException("64-bit library not found.", path64);

        string path;

        switch (RuntimeInformation.ProcessArchitecture)
        {
            case Architecture.X86:
                path = path32;
                break;
            case Architecture.X64:
                path = path64;
                break;
            default:
                throw new PlatformNotSupportedException();
        }

        ...
    }

    /// <summary>
    ///     https://msdn.microsoft.com/en-us/library/windows/desktop/ms684175(v=vs.85).aspx
    /// </summary>
    /// <param name="lpLibFileName"></param>
    /// <returns></returns>
    [DllImport("kernel32.dll", EntryPoint = "LoadLibrary", SetLastError = true, CharSet = CharSet.Unicode)]
    public static extern IntPtr LoadLibrary(string lpLibFileName);

您可以查看，我为其编写的.NET包装器。它是一个

AnyCPU

程序集，将根据当前运行的体系结构加载

x86

或

x64

库

以下是您感兴趣的部分：

注意事项：

    public NativeLibraryLoader(string path32, string path64)
    {
        if (!File.Exists(path32))
            throw new FileNotFoundException("32-bit library not found.", path32);

        if (!File.Exists(path64))
            throw new FileNotFoundException("64-bit library not found.", path64);

        string path;

        switch (RuntimeInformation.ProcessArchitecture)
        {
            case Architecture.X86:
                path = path32;
                break;
            case Architecture.X64:
                path = path64;
                break;
            default:
                throw new PlatformNotSupportedException();
        }

        ...
    }

    /// <summary>
    ///     https://msdn.microsoft.com/en-us/library/windows/desktop/ms684175(v=vs.85).aspx
    /// </summary>
    /// <param name="lpLibFileName"></param>
    /// <returns></returns>
    [DllImport("kernel32.dll", EntryPoint = "LoadLibrary", SetLastError = true, CharSet = CharSet.Unicode)]
    public static extern IntPtr LoadLibrary(string lpLibFileName);

此方法说明如何加载本机库而不是托管库

---

正如@Flydog57所指出的，要加载托管程序集，请使用

assembly.load

。

@165plo：事实上，如果C++/CLI DLL是托管程序集（我就是这样理解这个问题的），那么您将希望使用

System.Reflection.assembly.load

或它的一个朋友。但是，逻辑是正确的。但是，从“引用的程序集”的角度来看，它对您没有帮助。如果您可以控制C++/CLI代码，那么这些类是否实现了您在通用AnyCPU程序集中定义的接口，您的代码和C++/CLI代码都引用了这些接口？这样做没有本机方法吗？我发现它不是本机库发现的一部分，这有点奇怪。你说的本机方式是什么意思？上面的解决方案在方法调用时被调用，对吗？我很惊讶IL解释器没有在应用程序启动时提供这样做的方法。我可能错了，但我认为所有DLL都是在应用程序启动时加载的。是的，但正如您所指出的，您只能向程序集添加一个引用，对于它的体系结构没有区别，也就是说，它希望您为您的项目添加正确的引用。现在实施起来并不难，