导入C ++枚举到C＃ [英] Importing C++ enumerations into C#

问题描述

我目前正在创建一个需要与旧的C ++应用程序交互的新的C＃项目。目前已经存在的C ++应用程序，我需要在C＃应用程序使用了错误枚举。

的我不希望只是重新申报枚举在C＃中，因为这可能会导致同步问题的路线，如果文件没有一起更新的。

之所以这么说，我的问题是这样的：
有没有办法，我采取了一个枚举声明，像这样：

 的typedef枚举
 {
 eDEVICEINT_ERR_FATAL = 0x10001 
：
} eDeviceIntErrCodes; 
  

和使用它的C＃程序像这样：

  eDeviceIntErrCodes.eDEVICEINT_ERR_FATAL 
  

解决方案

退房的PInvoke互操作的助手工具的 http://www.codeplex.com/clrinterop/Release/ProjectReleases.aspx?ReleaseId=14120 。其产生的PInvoke签名本机方法的有用工具。

如果我给它的枚举它生成的代码。还有就是工具包含，所以你可能会建立一个自动化的过程，以保持枚举的C＃定义最新每当C ++版本变更的命令行版本。

  
公共枚举eDeviceIntErrCodes 
 {
 /// eDEVICEINT_ERR_FATAL  - > 0x10001 
 eDEVICEINT_ERR_FATAL = 65537，
} 
  

I'm currently working on creating a new C# project that needs to interact with an older C++ application. There is an error enumeration that already exists in the C++ app that I need to use in the C# app.

I don't want to just re declare the enumeration in C# because that could cause sync issues down the line if the files aren't updated together.

All that being said my question is this: Is there a way for me to taken an enumeration declared like so:

typedef enum
{
    eDEVICEINT_ERR_FATAL = 0x10001
    ...
} eDeviceIntErrCodes;

and use it in a C# program like so:

eDeviceIntErrCodes.eDEVICEINT_ERR_FATAL

解决方案

Check out the PInvoke Interop Assistant tool http://www.codeplex.com/clrinterop/Release/ProjectReleases.aspx?ReleaseId=14120. Its a useful tool for generating PInvoke signatures for native methods.

If I feed it your enum it generates this code. There is a command line version of the tool included so you could potentially build an automated process to keep the C# definition of the enum up to date whenever the C++ version changes.

    public enum eDeviceIntErrCodes 
    {
        /// eDEVICEINT_ERR_FATAL -> 0x10001
        eDEVICEINT_ERR_FATAL = 65537,
    }

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