96 lines
2.2 KiB
C++
96 lines
2.2 KiB
C++
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//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1992.
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//
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// File: StgVarB.hxx - Storage Variant Base Class
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//
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// Contents: C++ Base wrapper for PROPVARIANT.
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//
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// History: 01-Aug-94 KyleP Created
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//
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//--------------------------------------------------------------------------
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#if !defined(__STGVARB_HXX__)
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#define __STGVARB_HXX__
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class PSerStream;
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class PDeSerStream;
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class PMemoryAllocator
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{
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public:
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virtual void *Allocate(ULONG cbSize) = 0;
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virtual void Free(void *pv) = 0;
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};
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#if defined(OFSDBG) || defined(CIDBG)
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#define DBGPROP (OFSDBG || DBG || CIDBG)
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#else
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#define DBGPROP DBG
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#endif
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#if DBGPROP
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#if !defined(_NTDLLBUILD_)
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#define ENABLE_DISPLAY_VARIANT
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#endif
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#endif
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#if defined(_NTDLLBUILD_) && defined(_CAIRO_)
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#define OLDSUMCATAPI
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#endif
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#if !defined(_NTDLLBUILD_) || defined(OLDSUMCATAPI)
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#define ENABLE_MARSHAL_VARIANT
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#endif
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//+-------------------------------------------------------------------------
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//
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// Class: CBaseStorageVariant
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//
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// Purpose: C++ wrapper for PROPVARIANT
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//
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// History: 01-Aug-94 KyleP Created
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//
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// Notes: Only contains a static method to unmarshal from a stream.
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//
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//--------------------------------------------------------------------------
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class CBaseStorageVariant: public /* VC 5 fix - Was "protected" */ tagPROPVARIANT
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{
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#if defined(OLDSUMCATAPI)
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friend void MarshallVariant(PSerStream &stm, PROPVARIANT &var);
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#endif
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public:
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CBaseStorageVariant() {}
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CBaseStorageVariant(PROPVARIANT& var): tagPROPVARIANT(var) {}
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#ifdef KERNEL
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static NTSTATUS UnmarshalledSize( PDeSerStream &stm, ULONG & cb );
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#endif
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static NTSTATUS Unmarshall(
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PDeSerStream &stm,
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PROPVARIANT &sv,
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PMemoryAllocator &ma);
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#ifdef ENABLE_MARSHAL_VARIANT
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void Marshall(PSerStream& stm) const;
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#endif
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#ifdef ENABLE_DISPLAY_VARIANT
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VOID DisplayVariant(ULONG ulLevel, USHORT CodePage) const;
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#endif
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};
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#if defined(OLDSUMCATAPI)
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extern void MarshallVariant(PSerStream &stm, PROPVARIANT &var);
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#endif
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#endif // __STGVARB_HXX__
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