You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
3.2 KiB
74 lines
3.2 KiB
// --------------------------------------------------------------------------------
|
|
// Privunk.h
|
|
// Copyright (c)1993-1995 Microsoft Corporation, All Rights Reserved
|
|
// --------------------------------------------------------------------------------
|
|
#ifndef __PRIVUNK_H
|
|
#define __PRIVUNK_H
|
|
|
|
// --------------------------------------------------------------------------------
|
|
// CPrivateUnknown
|
|
// --------------------------------------------------------------------------------
|
|
class CPrivateUnknown : public IUnknown
|
|
{
|
|
private:
|
|
// ----------------------------------------------------------------------------
|
|
// Embed default IUnknown handler
|
|
// ----------------------------------------------------------------------------
|
|
class CUnkInner : public IUnknown
|
|
{
|
|
private:
|
|
LONG m_cRef; // Private Ref Count
|
|
|
|
public:
|
|
// Construction
|
|
CUnkInner(void) { m_cRef = 1; }
|
|
|
|
// IUnknown Members
|
|
virtual STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj);
|
|
virtual STDMETHODIMP_(ULONG) AddRef(void) ;
|
|
virtual STDMETHODIMP_(ULONG) Release(void);
|
|
};
|
|
|
|
friend class CUnkInner;
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Private Data
|
|
// ----------------------------------------------------------------------------
|
|
CUnkInner m_cUnkInner; // Private Inner
|
|
IUnknown *m_pUnkOuter; // points to _cUnkInner or aggregating IUnknown
|
|
|
|
protected:
|
|
// ----------------------------------------------------------------------------
|
|
// Construction
|
|
// ----------------------------------------------------------------------------
|
|
CPrivateUnknown(IUnknown *pUnkOuter);
|
|
virtual ~CPrivateUnknown(void) {};
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// This is the QueryInterface the aggregator implements
|
|
// ----------------------------------------------------------------------------
|
|
virtual HRESULT PrivateQueryInterface(REFIID riid, LPVOID * ppvObj) = 0;
|
|
|
|
public:
|
|
// ----------------------------------------------------------------------------
|
|
// This is the IUnknown that subclasses returns from their CreateInstance func
|
|
// ----------------------------------------------------------------------------
|
|
IUnknown* GetInner() { return &m_cUnkInner; }
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// IUnknown Members
|
|
// ----------------------------------------------------------------------------
|
|
inline virtual STDMETHODIMP QueryInterface(REFIID riid, LPVOID * ppvObj) {
|
|
return m_pUnkOuter->QueryInterface(riid, ppvObj); }
|
|
inline virtual STDMETHODIMP_(ULONG) AddRef(void) {
|
|
return m_pUnkOuter->AddRef(); }
|
|
inline virtual STDMETHODIMP_(ULONG) Release(void) {
|
|
return m_pUnkOuter->Release(); }
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// Public Utilities
|
|
// ----------------------------------------------------------------------------
|
|
void SetOuter(IUnknown *pUnkOuter);
|
|
};
|
|
|
|
#endif // __PRIVUNK_H
|