87 lines
2.1 KiB
C++
87 lines
2.1 KiB
C++
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// identity.cpp
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//
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// A dummy class whose sole purpose is to say, "Yes, I am BrowseUI"
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#include "priv.h"
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#include "sccls.h"
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class CBrowseuiIdentity : public IUnknown
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{
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public:
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STDMETHOD ( QueryInterface ) ( REFIID riid, LPVOID * ppvObj );
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STDMETHOD_( ULONG, AddRef ) ();
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STDMETHOD_( ULONG, Release ) ();
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protected:
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friend HRESULT CBrowseuiIdentity_CreateInstance(IUnknown* pUnkOuter, IUnknown** ppunk, LPCOBJECTINFO poi);
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CBrowseuiIdentity();
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~CBrowseuiIdentity();
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LONG m_cRef;
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};
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STDAPI CBrowseuiIdentity_CreateInstance(IUnknown* pUnkOuter, IUnknown** ppunk, LPCOBJECTINFO poi)
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{
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// class factory should've done these
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ASSERT(pUnkOuter == NULL);
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ASSERT(*ppunk == NULL);
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CBrowseuiIdentity* pid = new CBrowseuiIdentity();
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if (pid)
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{
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*ppunk = SAFECAST(pid, IUnknown*);
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return S_OK;
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}
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else
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{
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return E_OUTOFMEMORY;
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}
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////
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CBrowseuiIdentity::CBrowseuiIdentity() : m_cRef(1)
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{
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////
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CBrowseuiIdentity::~CBrowseuiIdentity()
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{
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP CBrowseuiIdentity::QueryInterface ( REFIID riid, LPVOID * ppvObj )
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{
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if ( riid == IID_IUnknown )
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{
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*ppvObj = SAFECAST( this, IUnknown *);
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AddRef();
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}
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else
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{
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return E_NOINTERFACE;
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}
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return NOERROR;
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_( ULONG ) CBrowseuiIdentity:: AddRef ()
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{
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InterlockedIncrement( &m_cRef );
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return m_cRef;
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}
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/////////////////////////////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP_( ULONG ) CBrowseuiIdentity:: Release ()
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{
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if ( InterlockedDecrement( &m_cRef ) == 0 )
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{
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delete this;
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return 0;
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}
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return m_cRef;
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}
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