DECLARE_CLASSFACTORY_SINGLETON

Article
12/01/2015

Declares CComClassFactorySingleton to be the class factory.

Syntax

      DECLARE_CLASSFACTORY_SINGLETON( 
   obj  
)

Parameters

obj
[in] The name of your class object.

Remarks

CComCoClass includes the DECLARE_CLASSFACTORY macro, which specifies CComClassFactory as the default class factory. However, by including the DECLARE_CLASSFACTORY_SINGLETON macro in your object's class definition, you override this default.

Example

class ATL_NO_VTABLE CMySingletonClass :
   public CComObjectRootEx<CComSingleThreadModel>,
   public CComCoClass<CMySingletonClass, &CLSID_MySingletonClass>,
   public IMySingletonClass
{
public:
   DECLARE_CLASSFACTORY_SINGLETON(CMySingletonClass)

   // Remainder of class declaration omitted.

Requirements

Header: atlcom.h