DLL导出数组引用C＃ [英] DLL export array reference to C#

问题描述

我正在尝试将c＃中的字符串数组传递给c ++并操纵该数组的数据。我怎样才能做到这一点？ （我是c ++ newb）


c ++

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解决方案

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感谢您的帖子，只是试一试，但仍然得到相同的结果：（

你确定一个String数组与LPCTSTR相同吗？


我怀疑互操作性规则导致了这一点。


我使用互操作性msdn字符串进行了Google高级搜索。并获得了很多热门歌曲。其中一个人说：

默认情况下，.NET字符串由COM Interop编写到C ++中的LPTSTR，反之亦然，所以你必须使用MarshalAs属性显式地将任何其他类型的非托管字符串（包括BSTR）编组到.NET字符串中。


继承IUnknown或IDispatch没有特别的问题但是如果从后者继承，则必须使用InterfaceType属性标记C＃接口声明。

我留给你研究这个。

I am trying to pass a string array from c# into c++ and manipulate the data of that array. How can I do this? (I am c++ newb)

c++

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解决方案

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Thanks for the post, just gave it a try but still getting the same results :(

Are you sure a String array is the same as an LPCTSTR?

I suspect interoperability rules are causing this.

I did a Google advanced search using "interoperability msdn String" and got a lot of hits. One of them said:

By default, .NET strings are marshalled by COM Interop to LPTSTR in C++ and, vice versa, and so you have to explicitly marshal any other type of unmanaged string (including BSTR) to and from a .NET string using the MarshalAs attribute.

There''s no particular problem in inheriting from IUnknown or IDispatch but, if you inherit from the latter, you have to mark the C# interface declaration with the InterfaceType attribute.

I am leaving it to you to research this.

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