没有功能在C＃DLL与RGiesecke.DllExport [英] No functions in C# DLL with RGiesecke.DllExport

问题描述

我试图在C＃中使用一些其他语言的DLL。我发现了RGiesecke的DllExport，但似乎没有起作用。它建立得很好，并且建立一个dll，但是当我在Dependency Walker中打开它时，它不显示任何功能，我的调用代码也找不到它们。

I am trying to make a DLL in C# for use in a couple other languages. I found RGiesecke's DllExport but it doesn't seem to work. It builds just fine and makes a dll, but when I open it in Dependency Walker it doesn't show any functions, and my calling code can't find them either.

我创建了一个新的类库项目（VS 2013），然后从NuGet安装了Unmanaged Exports（DllExport for .Net）。是否有任何需要的项目设置？

I created a new "Class Library" project (VS 2013) and then installed "Unmanaged Exports (DllExport for .Net)" from NuGet. Are there any project settings I need?

这是我的代码。

using System;
using System.Collections.Generic;
using System.Text;
using RGiesecke.DllExport;

namespace ToolServiceDLL
{
    public class Class1
    {
      [DllExport("addUp", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
      public static double addUp(double num1, double num2)
      {
        return num1 + num2;
      }

      [DllExport("get5", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
      public static int get5()
      {
        return 5;
      }
    }
}

推荐答案

我发现问题。它在RGiesecke文档中有，但我错过了。在项目设置 - >构建 - >平台目标：您不能将其设置为任何CPU。您必须将其设置为x64或x86，具体取决于是否要在64位或32位应用程序中使用它。

I found the problem. It has it in the RGiesecke Documentation, but I missed it. In the project settings->Build->Platform target: you can not have it set to "Any CPU". You must have it set to x64 or x86 depending on if you want to use it in a a 64 or 32 bit application.

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