93 lines
2.2 KiB
C++
93 lines
2.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2000, Microsoft Corp. All rights reserved.
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//
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// FILE
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//
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// dsobj.h
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//
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// SYNOPSIS
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//
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// Declares the class DataStoreObject.
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//
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// MODIFICATION HISTORY
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//
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// 02/12/2000 Original version.
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef DSOBJ_H
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#define DSOBJ_H
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#if _MSC_VER >= 1000
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#pragma once
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#endif
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#include <datastore2.h>
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_COM_SMARTPTR_TYPEDEF(IDataStoreObject, __uuidof(IDataStoreObject));
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_COM_SMARTPTR_TYPEDEF(IDataStoreContainer, __uuidof(IDataStoreContainer));
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_COM_SMARTPTR_TYPEDEF(IDataStoreProperty, __uuidof(IDataStoreProperty));
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///////////////////////////////////////////////////////////////////////////////
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//
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// CLASS
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//
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// DataStoreObject
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//
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// DESCRIPTION
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//
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// Provides a read-only wrapper around IDataStoreObject and
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// IDataStoreContainer.
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//
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///////////////////////////////////////////////////////////////////////////////
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class DataStoreObject
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{
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public:
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DataStoreObject() throw ();
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DataStoreObject(IUnknown* pUnk, PCWSTR path = NULL);
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~DataStoreObject() throw ();
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//////////
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// Methods for reading mandatory and optional properties.
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//////////
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void getValue(PCWSTR name, BSTR* value);
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void getValue(PCWSTR name, BSTR* value, BSTR defaultValue);
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void getValue(PCWSTR name, ULONG* value);
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void getValue(PCWSTR name, ULONG* value, ULONG defaultValue);
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void getValue(PCWSTR name, bool* value);
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void getValue(PCWSTR name, bool* value, bool defaultValue);
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//////////
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// Methods for iterating through the children.
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//////////
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LONG numChildren();
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bool nextChild(DataStoreObject& obj);
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// Returns true if the embedded in IDataStoreObject is NULL.
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bool empty() const throw ();
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private:
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void attach(IDataStoreObject* obj) throw ();
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bool getChild(PCWSTR name, DataStoreObject& obj);
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bool hasChildren();
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bool getValue(
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PCWSTR name,
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VARTYPE vt,
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VARIANT* value,
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bool mandatory
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);
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IDataStoreObjectPtr object;
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IDataStoreContainerPtr container;
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IEnumVARIANTPtr children;
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};
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#endif // DSOBJ_H
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