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METHOD_PROLOGUE

 

Maintains the proper global state when calling methods of an exported interface.

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METHOD_PROLOGUE(
theClass
, 
localClass )

theClass

Specifies the name of the class whose interface map is being implemented.

localClass

Specifies the name of the local class that implements the interface map.

Typically, member functions of interfaces implemented by CCmdTarget-derived objects already use this macro to provide automatic initialization of the pThis pointer. For example:

C++
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class CMySink : public CCmdTarget
{
public:
   CMySink();
   ~CMySink() {};

protected:
   DECLARE_INTERFACE_MAP()

   // The following block declares an inner class called 'XSinky'
   BEGIN_INTERFACE_PART(Sinky, ISampleSink)
      STDMETHOD(SinkFunc)();
   END_INTERFACE_PART(Sinky)
};
C++
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STDMETHODIMP_(ULONG) CMySink::XSinky::AddRef()
{
   METHOD_PROLOGUE(CMySink, Sinky);
   return pThis->InternalAddRef();
}

Requirements

Header: afxwin.h

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