118 lines
2.9 KiB
C++
118 lines
2.9 KiB
C++
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//+------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1995 - 1998.
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//
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// File: oleprop.hxx
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//
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// Contents: OLE Property Manager. Handles access to property sets.
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//
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// Classes: COLEPropManager
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//
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// History: 13-Dec-95 dlee Created
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//
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//-------------------------------------------------------------------
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#pragma once
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extern BOOL IsNullPointerVariant( PROPVARIANT *ppv );
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//+---------------------------------------------------------------------------
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//
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// Class: COLEPropManager
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//
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// Purpose: Handles access to OLE Property sets
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//
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// History: 13-Dec-95 dlee Created
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//
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//----------------------------------------------------------------------------
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class COLEPropManager
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{
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public:
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COLEPropManager( ) : _ppsstg( 0 ),
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_fStgOpenAttempted( FALSE ),
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_fOfficeCustomPropsetOpen( FALSE ),
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_fSharingViolation( FALSE ),
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_aPropSets( 0 )
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{ }
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~COLEPropManager() { ReleasePSS(); }
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BOOL isOpen() { return ( 0 != _ppsstg ); }
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BOOL Open( const CFunnyPath & funnyPath );
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void Close() { ReleasePSS(); }
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void FetchProperty( GUID const & guidPS,
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PROPSPEC const & psProperty,
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PROPVARIANT * pbData,
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unsigned * pcb );
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BOOL ReadProperty( CFullPropSpec const & ps,
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PROPVARIANT & Var );
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private:
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void ReleasePSS()
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{
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_fStgOpenAttempted = FALSE;
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_fSharingViolation = FALSE;
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_fOfficeCustomPropsetOpen = FALSE;
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if ( 0 != _ppsstg )
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{
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_aPropSets.Clear();
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_ppsstg->Release();
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_ppsstg = 0;
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}
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}
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unsigned PropSetToOrdinal( GUID const & guidPS );
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//
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// Property set mapping.
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//
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class CPropSetMap
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{
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public:
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CPropSetMap()
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: _pstg( 0 ), _fOpenAttempted( FALSE ) {}
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CPropSetMap( GUID const & guidPS )
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: _pstg( 0 ), _fOpenAttempted( FALSE ), _guid( guidPS ) {}
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~CPropSetMap() { Close(); }
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GUID const & GetGuid() { return _guid; }
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void SetGuid( GUID const & guid ) { _guid = guid; }
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IPropertyStorage & GetPS() { return *_pstg; }
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BOOL isOpen( IPropertySetStorage * ppsstg );
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void Close();
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private:
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GUID _guid;
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IPropertyStorage * _pstg;
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BOOL _fOpenAttempted;
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};
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IPropertySetStorage * _ppsstg;
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BOOL _fStgOpenAttempted;
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BOOL _fOfficeCustomPropsetOpen;
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BOOL _fSharingViolation;
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CDynArrayInPlaceNST<CPropSetMap> _aPropSets;
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LONGLONG _llAlign;
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WCHAR _awcPath[ MAX_PATH + 1 ];
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};
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