IDataHolderContext Struct Reference

Inheritance diagram for IDataHolderContext:

Public Member Functions
virtual signed int	AskInterface (const BGUID *piid, IRoot **ppr)=0
virtual signed int	DecRef ()=0
virtual signed int	IncRef ()=0
virtual signed int	RetrieveData (unsigned int id, void **ptr, signed int *size)=0
virtual signed int	StoreData (unsigned int id, void *ptr, signed int size)=0
Public Member Functions inherited from IRoot
template<class T >
signed int	AskInterface (T **pp)

Detailed Description

Deprecated:

Not currently in use.

Member Function Documentation

virtual signed int IDataHolderContext::AskInterface ( const BGUID *  piid, IRoot **  ppr  )

pure virtual

Queries this object to see if the interface piid is supported and returns the result in ppr.

Parameters

piid	The BGUID of the requested interface.
ppr	The address of an IRoot pointer which will receive the new interface.

Returns

S_OK if the interface is supported. E_FAIL if it is not.

Implements IRoot.

virtual signed int IDataHolderContext::DecRef ( )

pure virtual

Decreases the reference count on this object by 1. If the reference count reaches 0, the object is deallocated.

Implements IRoot.

virtual signed int IDataHolderContext::IncRef ( )

pure virtual

Increases the reference count on this object by 1. You do not need to call this after an object is first created. It is 1 by default.

Implements IRoot.