“createinstance”的C ++ COM模糊性来自“ccomcoclass”和“stddispatchimpl”

问题描述

Sorry somehow some text is missing in my previous question. Thanks for bearing with me. Here is complete question-

Working on VS2013.

I have created a classs-

class ATL_NO_VTABLE CMyClass : 
	public CComObjectRootEx <<CComMultiThreadModel>>,
	public CComCoClass<<CMyClass, CLSID_MyClass&>>,
	public IDispatchImpl<<IMyInterface3, IID_IMyInterface3, LIBID_myLib,  1, 0>>,  
        public StdDispatchImpl<<CMyClass>>;

In another cpp file I'm creating instance as follows-

CMyClass::CreateInstance(_pMyClass);

<b>Here I get error, saying:  
error C2385: ambiguous access of 'CreateInstance'
          could be the 'CreateInstance' in base 'ATL::CComCoClass<<CMyClass, CLSID_MyClass>>'
or could be the 'CreateInstance' in base 'StdDispatchImpl<<CMyClass&>>
		  
I need all the base class to derive from for my development purpose.
Kindly advice how to resolve the ambiguity.

If I exclude last line from my class (i.e. public StdDispatchImpl <<CMyClass>>), Compiler will be very happy to compile it successfully.

note: I need to use CreateInstance  from StdDispatchImpl<<CMyClass&>>


Thanks,
Praveen

什么我试过了：



google ..



我需要所有的基类来源于我的发展目的。

请建议如何解决歧义。

注意：我需要使用 CreateInstance >'StdDispatchImpl<< CMyClass>>'

What I have tried:

google..

I need all the base class to derive from for my development purpose.
Kindly advice how to resolve the ambiguity.
note: I need to use "CreateInstance" from 'StdDispatchImpl<<CMyClass>>'

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