如何在С#上的DLL和ATL项目之间进行传输 [英] How can I transfer between DLL on С# and ATL project

问题描述

我有一个用C#编写的DLL，这是我的常规应用程序-具有MFC支持的ATL项目. DLL使用string类型的数据，接受它们并将其传回.我应该使用哪种数据类型将string传输到DLL并从那里接收它们?我应该在DLL中使用"string"还是"ref string"来接收数据?我对LPCTSTR，TCHAR，BSTR，CHAR ...有点困惑. ......... DLL这样连接将托管代码导出为Unmanaged .

Hi, I have a DLL, written in C#, my general application - ATL project with MFC support. The DLL works with string type data, accepts them and transfers back. What data type should I use to transfer string into DLL and to receive them from there? Should I use "string" or "ref string" in DLL to receive data? I''m a little confused with LPCTSTR, TCHAR, BSTR, CHAR....
.........DLL connected like this Exporting Managed code as Unmanaged.

推荐答案

本文对此有很好的解释:

http://blogs.msdn.com/b/ericlippert/archive/2003/09/12/52976.aspx [ ^ ]

如果此问题对您有帮助，则将其标记为已回答.这样，其他人可能会参考这些答案.

This article has a great explanation for this:

http://blogs.msdn.com/b/ericlippert/archive/2003/09/12/52976.aspx[^]

Mark this question as answered if it helps you. This way other people may refer to this for their answers.

BSTR是最好的字符串类型.

BSTR is the best string type to use.

好，我使用了char*在非Unicode项目中.可以.

OK, I used char* in non Unicode project. It works OK.

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