windows-server-2003/admin/wmi/wbem/winmgmt/stdprov/cvariant.h

/*++

Copyright (C) 1995-2001 Microsoft Corporation

Module Name:

    CVARIANT.H

Abstract:

	Declares the CVariantClass

History:

	a-davj  9-27-95   Created.

--*/

#ifndef _CVARIANT_H_
#define _CVARIANT_H_

#include "stdprov.h"

//***************************************************************************
//
//  CLASS NAME:
//
//  CVariant
//
//  DESCRIPTION:
//
//  A wrapper around the VARIANT stucture.  
//
//***************************************************************************

class CVariant : public CObject {
    public:

    CVariant();
    CVariant(LPWSTR pwcStr);
    SCODE SetData(void * pData, VARTYPE vt, int iSize = -1);
    SCODE GetData(void ** pData, DWORD dwRegType, DWORD * pdwSize);
    SCODE DoPut(long lFlags,IWbemClassObject FAR *,BSTR PropName, CVariant * pVar);
    ~CVariant();
    void SetType(VARTYPE vtNew){var.vt =  vtNew;};
    VARTYPE GetType(){return var.vt;};
    void * GetDataPtr(){return (void *)&var.lVal;};
    VARIANT * GetVarPtr(){return &var;};
    BSTR GetBstr(){return var.bstrVal;};
    BOOL bGetBOOL(){return var.boolVal;};
    DWORD GetNumElements(void);
    BOOL IsArray(void){return var.vt & VT_ARRAY;};
    SCODE ChangeType(VARTYPE vtNew);    
    void Clear(void);
    
    private:
    VARIANT var;
    int CalcNumStrings(TCHAR *pTest);
    SCODE SetArrayData(void * pData,VARTYPE vtSimple, int iSize);
    SCODE GetArrayData(void ** pData,  DWORD * pdwSize);

};

#endif