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143 lines
3.6 KiB
143 lines
3.6 KiB
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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//
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// Copyright (C) Microsoft Corporation, 1999 - 1999
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//
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// File: ByteBuffer.h
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//
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//--------------------------------------------------------------------------
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// ByteBuffer.h : Declaration of the CByteBuffer
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#ifndef __BYTEBUFFER_H_
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#define __BYTEBUFFER_H_
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#include "resource.h" // main symbols
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/////////////////////////////////////////////////////////////////////////////
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// CByteBuffer
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class ATL_NO_VTABLE CByteBuffer :
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public CComObjectRootEx<CComMultiThreadModel>,
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public CComCoClass<CByteBuffer, &CLSID_CByteBuffer>,
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public IDispatchImpl<IByteBuffer, &IID_IByteBuffer, &LIBID_SCARDSSPLib>
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{
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public:
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CByteBuffer()
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{
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m_pUnkMarshaler = NULL;
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m_pStreamBuf = NULL;
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}
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DECLARE_REGISTRY_RESOURCEID(IDR_BYTEBUFFER)
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DECLARE_GET_CONTROLLING_UNKNOWN()
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DECLARE_PROTECT_FINAL_CONSTRUCT()
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BEGIN_COM_MAP(CByteBuffer)
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COM_INTERFACE_ENTRY(IByteBuffer)
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COM_INTERFACE_ENTRY(IDispatch)
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COM_INTERFACE_ENTRY_AGGREGATE(IID_IMarshal, m_pUnkMarshaler.p)
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END_COM_MAP()
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HRESULT FinalConstruct()
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{
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return CoCreateFreeThreadedMarshaler(
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GetControllingUnknown(), &m_pUnkMarshaler.p);
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}
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void FinalRelease()
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{
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m_pUnkMarshaler.Release();
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if (NULL != m_pStreamBuf)
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m_pStreamBuf->Release();
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}
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LPSTREAM Stream(void)
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{
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if (NULL == m_pStreamBuf)
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{
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HRESULT hr;
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hr = CreateStreamOnHGlobal(NULL, TRUE, &m_pStreamBuf);
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if (FAILED(hr))
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throw hr;
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}
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return m_pStreamBuf;
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}
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CComPtr<IUnknown> m_pUnkMarshaler;
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// IByteBuffer
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public:
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STDMETHOD(get_Stream)(
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/* [retval][out] */ LPSTREAM __RPC_FAR *ppStream);
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STDMETHOD(put_Stream)(
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/* [in] */ LPSTREAM pStream);
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STDMETHOD(Clone)(
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/* [out][in] */ LPBYTEBUFFER __RPC_FAR *ppByteBuffer);
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STDMETHOD(Commit)(
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/* [in] */ LONG grfCommitFlags);
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STDMETHOD(CopyTo)(
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/* [out][in] */ LPBYTEBUFFER __RPC_FAR *ppByteBuffer,
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/* [in] */ LONG cb,
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/* [defaultvalue][out][in] */ LONG __RPC_FAR *pcbRead = 0,
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/* [defaultvalue][out][in] */ LONG __RPC_FAR *pcbWritten = 0);
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STDMETHOD(Initialize)(
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/* [defaultvalue][in] */ LONG lSize = 1,
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/* [defaultvalue][in] */ BYTE __RPC_FAR *pData = 0);
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STDMETHOD(LockRegion)(
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/* [in] */ LONG libOffset,
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/* [in] */ LONG cb,
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/* [in] */ LONG dwLockType);
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STDMETHOD(Read)(
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/* [out][in] */ BYTE __RPC_FAR *pByte,
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/* [in] */ LONG cb,
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/* [defaultvalue][out][in] */ LONG __RPC_FAR *pcbRead = 0);
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STDMETHOD(Revert)(void);
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STDMETHOD(Seek)(
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/* [in] */ LONG dLibMove,
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/* [in] */ LONG dwOrigin,
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/* [defaultvalue][out][in] */ LONG __RPC_FAR *pLibnewPosition = 0);
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STDMETHOD(SetSize)(
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/* [in] */ LONG libNewSize);
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STDMETHOD(Stat)(
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/* [out][in] */ LPSTATSTRUCT pstatstg,
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/* [in] */ LONG grfStatFlag);
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STDMETHOD(UnlockRegion)(
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/* [in] */ LONG libOffset,
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/* [in] */ LONG cb,
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/* [in] */ LONG dwLockType);
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STDMETHOD(Write)(
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/* [out][in] */ BYTE __RPC_FAR *pByte,
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/* [in] */ LONG cb,
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/* [out][in] */ LONG __RPC_FAR *pcbWritten);
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protected:
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LPSTREAM m_pStreamBuf;
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};
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inline CByteBuffer *
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NewByteBuffer(
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void)
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{
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return (CByteBuffer *)NewObject(CLSID_CByteBuffer, IID_IByteBuffer);
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}
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#endif //__BYTEBUFFER_H_
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