CComQIPtrElementTraits Class

Article
08/03/2021

This class provides methods, static functions, and typedefs useful when creating collections of COM interface pointers.

Syntax

template<typename I, const IID* piid=& __uuidof(I)>
class CComQIPtrElementTraits :
   public CDefaultElementTraits<ATL::CComQIPtr<I, piid>>

Parameters

I
A COM interface specifying the type of pointer to be stored.

piid
A pointer to the IID of I.

Members

Public Typedefs

Name	Description
CComQIPtrElementTraits::INARGTYPE	The data type to use for adding elements to the collection class object.

Remarks

This class derives methods and provides a typedef useful when creating a collection class of CComQIPtr COM interface pointer objects. This class is utilized by both the CInterfaceArray and CInterfaceList classes.

For more information, see ATL Collection Classes.

Inheritance Hierarchy

CDefaultCompareTraits

CDefaultHashTraits

CElementTraitsBase

CDefaultElementTraits

CComQIPtrElementTraits

Requirements

Header: atlcoll.h

CComQIPtrElementTraits::INARGTYPE

The data type to use for adding elements to the collection class object.

typedef I* INARGTYPE;