89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1995.
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//
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// File: CLOCKBYT.CXX
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//
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// Contents:
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//
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// Classes: Implements the ILockBytes base class.
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//
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// Functions:
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//
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// History: 12-01-95 JoeS (Joe Souza) Created
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//
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//----------------------------------------------------------------------------
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#include <urlint.h>
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#include <urlmon.hxx>
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#include "clockbyt.hxx"
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CLockBytes::CLockBytes() : _CRefs()
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{
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}
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STDMETHODIMP CLockBytes::QueryInterface
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(REFIID riid, LPVOID FAR* ppvObj)
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{
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VDATETHIS(this);
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UrlMkDebugOut((DEB_ILOCKBYTES, "%p IN CLockBytes::QueryInterface\n", this));
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HRESULT hresult = NOERROR;
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if ( IsEqualIID(riid, IID_IUnknown)
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|| IsEqualIID(riid, IID_ILockBytes)
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)
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{
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*ppvObj = this;
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}
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else
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{
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*ppvObj = NULL;
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hresult = E_NOINTERFACE;
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}
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if (*ppvObj)
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AddRef();
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UrlMkDebugOut((DEB_ILOCKBYTES, "%p OUT CLockBytes::QueryInterface\n", this));
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return hresult;
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}
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STDMETHODIMP_(ULONG) CLockBytes::AddRef(void)
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{
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VDATETHIS(this);
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UrlMkDebugOut((DEB_ILOCKBYTES, "%p IN CLockBytes::AddRef\n", this));
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LONG lRet = ++_CRefs;
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UrlMkDebugOut((DEB_ILOCKBYTES, "%p OUT CLockBytes::AddRef\n", this));
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return lRet;
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}
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HRESULT CLockBytes::Flush()
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{
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UrlMkDebugOut((DEB_ILOCKBYTES, "%p CLockBytes::Flush (NoOp)\n", this));
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return(NOERROR);
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}
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HRESULT CLockBytes::LockRegion(THIS_ ULARGE_INTEGER libOffset, ULARGE_INTEGER cb,
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DWORD dwLockType)
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{
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UrlMkDebugOut((DEB_ILOCKBYTES, "%p CLockBytes::LockRegion (NoOp)\n", this));
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return(NOERROR);
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}
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HRESULT CLockBytes::UnlockRegion(THIS_ ULARGE_INTEGER libOffset,
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ULARGE_INTEGER cb, DWORD dwLockType)
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{
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UrlMkDebugOut((DEB_ILOCKBYTES, "%p CLockBytes::UnlockRegion (NoOp)\n", this));
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return(NOERROR);
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}
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HRESULT CLockBytes::Stat(THIS_ STATSTG FAR *pStatStg, DWORD grfStatFlag)
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{
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UrlMkDebugOut((DEB_ILOCKBYTES, "%p CLockBytes::Stat (NoOp)\n", this));
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return(STG_E_UNKNOWN);
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}
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