121 lines
2.8 KiB
C++
121 lines
2.8 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: STGAPI.CXX
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//
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// Contents:
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//
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// Classes:
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//
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// Functions:
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//
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// History: 12-15-95 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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#include "casynclb.hxx"
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#include "filelb.hxx"
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#include "memlb.hxx"
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#include "stgapi.hxx"
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HRESULT StgGetFillLockByteOnMem(IFillLockBytes **pFLB)
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{
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DEBUG_ENTER_API((DBG_API,
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Hresult,
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"StgGetFillLockByteOnMem",
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"%#x",
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pFLB
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));
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HRESULT hresult = NOERROR;
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ILockBytes *pLB;
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*pFLB = NULL;
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if (!(pLB = new MemLockBytes))
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{
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DEBUG_LEAVE_API(E_OUTOFMEMORY);
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return(E_OUTOFMEMORY);
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}
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hresult = StgGetFillLockByteILockBytes(pLB, pFLB);
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if (hresult != NOERROR)
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delete pLB;
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DEBUG_LEAVE_API(hresult);
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return(hresult);
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}
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HRESULT StgGetFillLockByteOnFile(OLECHAR *pwcFileName, IFillLockBytes **pFLB)
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{
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DEBUG_ENTER_API((DBG_API,
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Hresult,
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"StgGetFillLockByteOnFile",
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"%#x, %#x",
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pwcFileName, pFLB
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));
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HRESULT hresult = NOERROR;
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ILockBytes *pLB;
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HANDLE fhandle;
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*pFLB = NULL;
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fhandle = CreateFileW(pwcFileName, GENERIC_READ | GENERIC_WRITE,
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FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, CREATE_ALWAYS,
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FILE_ATTRIBUTE_NORMAL, NULL);
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if (fhandle == INVALID_HANDLE_VALUE)
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{
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DEBUG_LEAVE_API(E_FAIL);
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return(E_FAIL);
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}
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if (!(pLB = new FileLockBytes(fhandle)))
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{
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CloseHandle(fhandle);
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DEBUG_LEAVE_API(E_OUTOFMEMORY);
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return(E_OUTOFMEMORY);
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}
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hresult = StgGetFillLockByteILockBytes(pLB, pFLB);
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if (hresult != NOERROR)
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delete pLB;
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DEBUG_LEAVE_API(hresult);
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return(hresult);
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}
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HRESULT StgGetFillLockByteILockBytes(ILockBytes *pLB, IFillLockBytes **pFLB)
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{
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DEBUG_ENTER_API((DBG_API,
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Hresult,
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"StgGetFillLockByteILockBytes",
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"%#x, %#x",
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pLB, pFLB
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));
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IFillLockBytes *flb;
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*pFLB = NULL;
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if (!(flb = new CAsyncLockBytes(pLB)))
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{
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DEBUG_LEAVE_API(E_OUTOFMEMORY);
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return(E_OUTOFMEMORY);
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}
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*pFLB = flb;
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DEBUG_LEAVE_API(NOERROR);
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return(NOERROR);
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}
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