CComClassFactoryAutoThread::CreateInstance

Creates an object of the specified CLSID and retrieves an interface pointer to this object.

STDMETHODIMP CreateInstance(
   LPUNKNOWN pUnkOuter,
   REFIID riid,
   void** ppvObj 
);

Parameters

• pUnkOuter
  [in] If the object is being created as part of an aggregate, then pUnkOuter must be the outer unknown. Otherwise, pUnkOuter must be NULL.

• riid
  [in] The IID of the requested interface. If pUnkOuter is non-NULL, riid must be IID_IUnknown.

• ppvObj
  [out] A pointer to the interface pointer identified by riid. If the object does not support this interface, ppvObj is set to NULL.

Return Value

A standard HRESULT value.

Remarks

If your module derives from CComAutoThreadModule, CreateInstance first selects a thread to create the object in the associated apartment.

Requirements

Header: atlcom.h

See Also

Concepts

CComClassFactoryAutoThread Class

CComClassFactoryAutoThread Members

CoCreateInstance

CoGetClassObject