获取对象Functionallity出的C ++代码在C＃ [英] Getting Object Functionallity out of C++ code in C#

问题描述

我已经有一个函数在C ++调用在旧的lib某些功能写道。这个函数创建一些内存，使通话和破坏内存。为了优化这个我想创建一个对象，会继续分配，直到该对象被破坏的内存。但是我要被调用从C＃这个功能，不相信我可以导出类，只是函数或变量

I have have a function in wrote in C++ that calls some functions in a old lib. This function creates some memory makes the calls and destroys the memory. To optimize this I would create an object that would keep the memory allocated until the object was destroyed. However I'm going to be calling this function from C# and don't believe I can export a Class, just functions or variables.

我的想法是代替本;想想DLL作为一个阶级和使用本地变量的dll域内指向内存。然后有一个函数来创建存储，调用工人功能和另一个当与DLL进行破坏内存。

My idea is instead this; Think of the DLL as a class and the use local vars inside the scope of the dll to point to memory. Then have a function to create the memory, call the worker functions and another to destroy the memory when done with the DLL.

这是一个好方法？有没有更好的办法？

Is this a good approach? Is there a better way?

推荐答案

我喜欢写在C ++ / CLI（原托管C ++）托管的包装，因为它使得它更容易明确你要使用C ++侧管理/非托管的互操作性的东西，你的C＃没有得到污染带的p / Invoke样式代码。

I prefer to write a managed wrapper in C++/CLI (formerly Managed C++), as it makes it much easier to explicitly do what you want with managed/unmanaged interoperability on the C++ side, and your C# doesn't get polluted with P/Invoke style code.

修改只注意到你的评论的但是我将要调用从C＃这个功能，不相信我可以导出类，只是函数或变量。的

Edit Just noticed your comment "However I'm going to be calling this function from C# and don't believe I can export a Class, just functions or variables."

这是不完全正确 - C＃的可以导入全类从C ++ / CLI代码生成的汇编

That's not entirely true - C# can import full classes from an assembly generated from C++/CLI code.

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