managed enum from C++/CLI to C#

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I have the following managed class

namespace Managed_DLL
{
public ref class AController
{    
public:        
       delegate void didChangeListenerStatus(tListenerStatus status);

....};

// header file
#if defined(_MANAGED)
namespace Managed_DLL
{
#define ENUMKEYWORD public enum
#else
#define ENUMKEYWORD typedef enum
#endif
ENUMKEYWORD tListenerStatus
{    
kListenerStopped,    
kListenerRunning,    
kListenerFailed} ;
}

I have defined the _MANAGED in the dll preprocessor defines
In C# app I have defined the didChangeListenerStatus in one of classes as

using Managed_DLL
....
public void didChangeListenerStatus(tListenerStatus status)        
{            
Console.WriteLine(" didChangeListnerStatus called");        
}

When I compile the C# app it gives the following error

Error   4   'tListenerStatus' is inaccessible due to its protection level   Error   3   Inconsistent accessibility: parameter type 'tListenerStatus' is less accessible than method 'ADemo.ViewController.didChangeListenerStatus(tListenerStatus)

Posted 23-Mar-11 6:53am

manumith

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Sergey Alexandrovich Kryukov · Answer 1 · 2011-03-23T09:25:00

Just locate the declaration of the type tListenerStatus and make it public.

(Remember: there is not inter-operation problems between C# and C++/CLI, the same stands for all .NET languages. However, there is one special feature of C++/CLI: the "value semantic" for reference types, which is not available in other languages. In other words, you can only use "^" reference types for inter-operation.)

—SA

Rick Shaub · Answer 2 · 2011-03-23T07:03:00

Solution 1

I don't think your preprocessor directive is working, and as was pointed out in the other answer, you don't need it for a purely managed class. Just make your header file declaration as follows:

namespace Managed_DLL
{
    public enum tListenerStatus
    {    
        kListenerStopped,
        kListenerRunning,
        kListenerFailed
    };
}

Posted 23-Mar-11 7:03am

Rick Shaub

Updated 23-Mar-11 9:52am

v3

Comments

Sergey Alexandrovich Kryukov 23-Mar-11 15:20pm

Please read carefully: OP does not use unmanaged at all. There is not problem.
--SA

Sergey Alexandrovich Kryukov 23-Mar-11 16:23pm

Now it's correct.
--SA