82 lines
1.6 KiB
C
82 lines
1.6 KiB
C
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/*++
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<EFBFBD> 1998 Seagate Software, Inc. All rights reserved.
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Module Name:
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wsbvar.h
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Abstract:
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This class is a wrapper for the VARIANT structure, providing
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conversion and cleanup automatically. Current supported types
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for conversion are OLECHAR * (BSTR), IUnknown / IDispatch, and
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GUID. GUIDs are represented internally as strings.
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Author:
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Rohde Wakefield [rohde] 21-Jan-1997
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Revision History:
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--*/
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#ifndef _WSBVAR_
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#define _WSBVAR_
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class WSB_EXPORT CWsbVariant : public tagVARIANT
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{
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public:
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CWsbVariant ( ) { Init ( ); }
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~CWsbVariant ( ) { Clear ( ); }
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HRESULT Clear ( ) { return ( VariantClear ( this ) ); }
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void Init ( ) { VariantInit ( this ); }
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BOOL IsEmpty ( )
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{
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return ( VT_EMPTY == vt );
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}
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CWsbVariant & operator = ( const VARIANT & variant )
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{
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VariantCopy ( this, (VARIANT *)&variant );
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return ( *this );
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}
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BOOL IsBstr ( )
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{
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return ( VT_BSTR == vt );
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}
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CWsbVariant ( const OLECHAR * string );
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CWsbVariant & operator = ( const OLECHAR * string );
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operator OLECHAR * ( );
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BOOL IsInterface ( )
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{
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return ( ( VT_UNKNOWN == vt ) || ( VT_DISPATCH == vt ) );
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}
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BOOL IsDispatch ( )
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{
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return ( ( VT_DISPATCH == vt ) );
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}
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CWsbVariant ( IUnknown * );
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CWsbVariant ( IDispatch * );
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operator IUnknown * ( );
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operator IDispatch * ( );
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CWsbVariant & operator = ( IUnknown * pUnk );
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CWsbVariant & operator = ( IDispatch * pDisp );
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CWsbVariant ( REFGUID rguid );
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CWsbVariant & operator = ( REFGUID rguid );
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operator GUID ();
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};
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#endif
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