109 lines
2.8 KiB
C++
109 lines
2.8 KiB
C++
//+--------------------------------------------------------------
|
|
//
|
|
// Microsoft Windows
|
|
// Copyright (C) Microsoft Corporation, 1991 - 1996.
|
|
//
|
|
// File: dfstream.cxx
|
|
//
|
|
// Contents: Implementations of CDocFile stream methods
|
|
//
|
|
//---------------------------------------------------------------
|
|
|
|
#include "dfhead.cxx"
|
|
#include "h/sstream.hxx"
|
|
|
|
//+--------------------------------------------------------------
|
|
//
|
|
// Method: CDocFile::CreateStream, public
|
|
//
|
|
// Synopsis: Creates a named stream in a DocFile
|
|
//
|
|
// Arguments: [pwcsName] - Name of the stream
|
|
// [df] - Transactioning flags
|
|
// [dlSet] - LUID to set or DF_NOLUID
|
|
// [ppstStream] - Pointer to storage for the stream pointer
|
|
//
|
|
// Returns: Appropriate error code
|
|
//
|
|
// Modifies: [ppstStream]
|
|
//
|
|
//---------------------------------------------------------------
|
|
|
|
|
|
SCODE CDocFile::CreateStream(CDfName const *pdfn,
|
|
DFLAGS const df,
|
|
DFLUID dlSet,
|
|
CDirectStream **ppstStream)
|
|
{
|
|
SCODE sc;
|
|
CDirectStream *pstm;
|
|
|
|
olDebugOut((DEB_ITRACE, "In CDocFile::CreateStream("
|
|
"%ws, %X, %lu, %p)\n",
|
|
pdfn, df, dlSet, ppstStream));
|
|
UNREFERENCED_PARM(df);
|
|
|
|
if (dlSet == DF_NOLUID)
|
|
dlSet = CDirectStream::GetNewLuid();
|
|
olMem(pstm = new CDirectStream(dlSet));
|
|
olChkTo(EH_pstm, pstm->Init(&_stgh, pdfn, TRUE));
|
|
|
|
*ppstStream = pstm;
|
|
olDebugOut((DEB_ITRACE, "Out CDocFile::CreateStream => %p\n",
|
|
*ppstStream));
|
|
return S_OK;
|
|
|
|
EH_pstm:
|
|
delete pstm;
|
|
EH_Err:
|
|
return sc;
|
|
}
|
|
|
|
//+--------------------------------------------------------------
|
|
//
|
|
// Method: CDocFile::GetStream, public
|
|
//
|
|
// Synopsis: Retrieves an existing stream from a DocFile
|
|
//
|
|
// Arguments: [pwcsName] - Name of the stream
|
|
// [df] - Transactioning flags
|
|
// [dwType] - Type of entry
|
|
// [ppstStream] - Pointer to storage for the stream pointer
|
|
//
|
|
// Returns: Appropriate error code
|
|
//
|
|
// Modifies: [ppstStream]
|
|
//
|
|
//---------------------------------------------------------------
|
|
|
|
|
|
|
|
SCODE CDocFile::GetStream(CDfName const *pdfn,
|
|
DFLAGS const df,
|
|
CDirectStream **ppstStream)
|
|
{
|
|
SCODE sc;
|
|
CDirectStream *pstm;
|
|
|
|
olDebugOut((DEB_ITRACE, "In CDocFile::GetStream(%ws, %X, %p)\n",
|
|
pdfn, df, ppstStream));
|
|
UNREFERENCED_PARM(df);
|
|
|
|
DFLUID dl = CDirectStream::GetNewLuid();
|
|
olMem(pstm = new CDirectStream(dl));
|
|
|
|
olChkTo(EH_pstm, pstm->Init(&_stgh, pdfn, FALSE));
|
|
*ppstStream = pstm;
|
|
olDebugOut((DEB_ITRACE, "Out CDocFile::GetStream => %p\n",
|
|
*ppstStream));
|
|
return S_OK;
|
|
|
|
EH_pstm:
|
|
delete pstm;
|
|
EH_Err:
|
|
return sc;
|
|
}
|
|
|
|
|
|
|