windows-server-2003/admin/cys/servmgmt/auw/dll/wizchain/propitem.h

// PropItem.h : Declaration of the CPropertyItem

#ifndef __PROPERTYITEM_H_
#define __PROPERTYITEM_H_

#include "resource.h"       // main symbols

#include "pppbag.h"

/////////////////////////////////////////////////////////////////////////////
// CPropertyItem
class ATL_NO_VTABLE CPropertyItem : 
    public CComObjectRootEx<CComSingleThreadModel>,
    public IDispatchImpl<IPropertyItem, &IID_IPropertyItem, &LIBID_WIZCHAINLib>
{

private:
    VARIANT     m_var;
    PPPBAG_TYPE m_dwFlags;
    BSTR        m_bstrName;

public:
    CPropertyItem( )
    {
        VariantInit (&m_var);
        m_dwFlags  = PPPBAG_TYPE_UNINITIALIZED;
        m_bstrName = NULL;
    }

    HRESULT Initialize( BSTR bstrName, VARIANT * v, PPPBAG_TYPE dwFlags )
    {
        // should be called only once
        assert (m_bstrName == NULL);
        assert (m_var.vt   == VT_EMPTY);

        HRESULT hr = S_OK;

        m_dwFlags  = dwFlags;
        hr = VariantCopy( &m_var, v );

        if( hr == S_OK )
        {
           if( !(m_bstrName = SysAllocString (bstrName)) )
           {
               hr = E_OUTOFMEMORY;
           }
        }
        return hr;
    }

   ~CPropertyItem( )
    {
        VariantClear( &m_var );

        if( m_bstrName )
        {
            SysFreeString( m_bstrName );
        }
    }

DECLARE_PROTECT_FINAL_CONSTRUCT()

BEGIN_COM_MAP(CPropertyItem)
    COM_INTERFACE_ENTRY(IPropertyItem)
    COM_INTERFACE_ENTRY(IDispatch)
END_COM_MAP()

// IPropertyItem
public:
    virtual HRESULT STDMETHODCALLTYPE get_Value( /*[out, retval]*/ VARIANT *varValue );
    virtual HRESULT STDMETHODCALLTYPE get_Name ( /*[out, retval]*/ BSTR *strName );
    virtual HRESULT STDMETHODCALLTYPE get_Type ( /*[out, retval]*/ long *dwFlags );
};

#endif //__PROPERTYITEM_H_