135 lines
2.9 KiB
C++
135 lines
2.9 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1994.
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//
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// File: asyncapi.cxx
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//
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// Contents: APIs for async docfiles
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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: 19-Dec-95 PhilipLa Created
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//
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//----------------------------------------------------------------------------
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#include "astghead.cxx"
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#pragma hdrstop
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#include "asyncapi.hxx"
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#include "filllkb.hxx"
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#include "filelkb.hxx"
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#include "stgwrap.hxx"
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#if DBG == 1
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DECLARE_INFOLEVEL(astg);
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#endif
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HRESULT StgOpenAsyncDocfileOnIFillLockBytes( IFillLockBytes *pflb,
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DWORD grfMode,
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DWORD asyncFlags,
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IStorage **ppstgOpen)
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{
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HRESULT hr;
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ILockBytes *pilb;
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IStorage *pstg;
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hr = pflb->QueryInterface(IID_ILockBytes, (void **)&pilb);
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if (FAILED(hr))
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{
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return hr;
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}
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hr = StgOpenStorageOnILockBytes(pilb,
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NULL,
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grfMode,
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NULL,
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0,
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&pstg);
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pilb->Release();
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if (FAILED(hr))
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{
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return hr;
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}
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*ppstgOpen = new CAsyncRootStorage(pstg,(CFillLockBytes *) pflb);
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if (*ppstgOpen == NULL)
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{
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return STG_E_INSUFFICIENTMEMORY;
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}
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return NOERROR;
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}
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HRESULT StgGetIFillLockBytesOnILockBytes( ILockBytes *pilb,
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IFillLockBytes **ppflb)
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{
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SCODE sc = S_OK;
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CFillLockBytes *pflb = NULL;
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pflb = new CFillLockBytes(pilb);
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if (pflb == NULL)
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{
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return STG_E_INSUFFICIENTMEMORY;
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}
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sc = pflb->Init();
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if (FAILED(sc))
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{
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*ppflb = NULL;
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return sc;
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}
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*ppflb = pflb;
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return NOERROR;
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}
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HRESULT StgGetIFillLockBytesOnFile(OLECHAR const *pwcsName,
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IFillLockBytes **ppflb)
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{
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SCODE sc;
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CFileLockBytes *pflb = NULL;
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pflb = new CFileLockBytes;
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if (pflb == NULL)
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{
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return STG_E_INSUFFICIENTMEMORY;
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}
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sc = pflb->Init(pwcsName);
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if (SUCCEEDED(sc))
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{
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sc = StgGetIFillLockBytesOnILockBytes(pflb, ppflb);
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}
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return sc;
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}
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#if DBG == 1
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HRESULT StgGetDebugFileLockBytes(OLECHAR const *pwcsName, ILockBytes **ppilb)
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{
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SCODE sc;
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CFileLockBytes *pflb;
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*ppilb = NULL;
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pflb = new CFileLockBytes;
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if (pflb == NULL)
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{
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return STG_E_INSUFFICIENTMEMORY;
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}
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sc = pflb->Init(pwcsName);
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if (FAILED(sc))
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{
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delete pflb;
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pflb = NULL;
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}
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*ppilb = pflb;
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return sc;
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}
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#endif
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