从路径加载DLL在指定SetDllDirectory会在c＃ [英] Loading dlls from path specified in SetdllDirectory in c#

问题描述

我在dotnet.I是新有，通过使用加载 C DLL 的DllImport A DOTNET DLL。我希望把所有的DLL是从应用程序的位置不同势一个文件夹中。我不想修改环境变量。所以我用 SetDllDirectory会 API，并通过 Assembly.Loadfrom载入我的C＃程序集（..）。我检查了 SetDllDirectory会通过验证 GetDllDirectory的价值做工精细（..）。但它既不是加载C＃DLL也不c从该文件夹中的DLL。我能够通过specyfing在 Assembly.Loadfrom 的路径来加载 C＃ DLL。但无法加载C DLL。

I am new in dotnet.I have a dotnet dll that loads a c dll by using DllImport. I want to place all the dlls in a folder which is diffrent from the location of application. I dont want to modify environmental variables. So i used setdlldirectory API and load my c# assembly through Assembly.Loadfrom(..). I checked that SetdllDirectory is working fine by verifying the value of GetDllDirectory(..). But it is neither loading C# dll nor c dll from that folder. I am able to load C# dll by specyfing the path in Assembly.Loadfrom. But not able to load c dll.

在此先感谢！

推荐答案

我建议添加目录路径PATH环境变量在运行时，使用以下code：

I'd suggest adding the directory path to PATH env variable in runtime, using the following code:

var dllDirectory = @"C:/some/path";
Environment.SetEnvironmentVariable("PATH", Environment.GetEnvironmentVariable("PATH") + ";" + dllDirectory);

这样，变化只影响到正在运行的进程，退出时被丢弃。

That way, the change is only affecting the running process and is discarded when it exits.

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