如何从[C＃WP8.1 WRT / SL]项目中调用[Unmanaged C ++ DLL func](How to Call [Unmanaged C++ DLL func] from [C# WP8.1 WRT/SL] project)

 这不是“如何从C＃调用C ++函数”的重复 
 
 我知道如何为普通的PC应用程序做到这一点，我尝试过，它的工作原理： 
 
 这称为P / Invoke 
 
1.
Create a C++ dll project,
but you can't add the C++ dll project as a reference to the C# project.
Copy the dll from C++, and paste the dll to the C# exe folder

2.
in C#  use [DllImport...] 
in C++ use extern "C" __declspec(dllexport) ...
 
 但是当我在WindowsPhone上这样做时，失败了。 
 
 有2种类型的非托管c + +原生dll项目的Windows Phone，我都尝试过 
 
DLL (Windows Phone) <- WRT DLL 8.1
DLL (Windows Phone Silverlight 8.1)
 
 我不知道在哪里放置dll文件。 因为最后的exe是一个包。 我不能将dll放在与包相同的文件夹中。 作为软件包的一部分，该DLL应该位于软件包中。 
 
 所以我试图在C＃WP8.1 SL项目中添加dll作为resorce文件。 
 
 但函数调用失败。 
 
 所以我想知道的是，如何放置dll，如何使用WP8.1 SL项目来连接dll？ 
 
 有没有人尝试过吗？ 
 
 谢谢你们的答案。 
 
 // ------------------------------------------------ ------------ 
 
 所以正确的方法是对于[C＃WP8.1 SL]项目，我需要 
 
create a [C++ Runtime Component DLL] <- as bridge
create a [C++ Native WP SL DLL] <- real dll

Add the [C++ Runtime Component DLL] as a reference to [C# WP8.1 SL]
And the [C++ Native WP SL DLL] as a reference to [C++ Runtime Component DLL]

This is not a duplicate of "how to call C++ function from C#"
 
I know how to do it for regular PC app and I tried and it works:
 
This is called P/Invoke
 
1.
Create a C++ dll project,
but you can't add the C++ dll project as a reference to the C# project.
Copy the dll from C++, and paste the dll to the C# exe folder

2.
in C#  use [DllImport...] 
in C++ use extern "C" __declspec(dllexport) ...
 
But when I do this on WindowsPhone, failed.
 
There are 2 type of unmanaged c++ native dll project for windows phone, I tried both
 
DLL (Windows Phone) <- WRT DLL 8.1
DLL (Windows Phone Silverlight 8.1)
 
I don't know where to place the dll file. Because the finally exe is a package. I can't place the dll in the same folder with the package. The dll should be in the package, as a part of the package.
 
So I tried to add the dll as a resorce file in the C# WP8.1 SL project.
 
But the function call failed.
 
So what I want to know is, how to place the dll, how to hook up the dll with the WP8.1 SL project?
 
Is there any one try that before?
 
Thank you guys for the answer.
 
//------------------------------------------------------------
 
So the correct way is For a [C# WP8.1 SL] project, I need to
 
create a [C++ Runtime Component DLL] <- as bridge
create a [C++ Native WP SL DLL] <- real dll

Add the [C++ Runtime Component DLL] as a reference to [C# WP8.1 SL]
And the [C++ Native WP SL DLL] as a reference to [C++ Runtime Component DLL]

原文：https://stackoverflow.com/questions/29761538