TrackedTypeTraitsBase< T, TTT > Struct Template Reference

A base class template for type traits for objects tracked by a ServiceTracker instance. More...

Inheritance diagram for TrackedTypeTraitsBase< T, TTT >:

Public Types
typedef T	TrackedType

Static Public Member Functions
static TrackedType	ConvertToTrackedType (const InterfaceMap &)
static TrackedType	ConvertToTrackedType (void *)

Detailed Description

template<class T, class TTT>
struct TrackedTypeTraitsBase< T, TTT >

A base class template for type traits for objects tracked by a ServiceTracker instance.

It provides the TrackedType typedef and two dummy method definitions.

Tracked type traits (TTT) classes must additionally provide the following methods:

• static bool IsValid(const TrackedType& t) Returns true if t is a valid object, false otherwise.
• static void Dispose(TrackedType& t) Clears any resources held by the tracked object t.
• static TrackedType DefaultValue() Returns the default value for newly created tracked objects.

Template Parameters

T	The type of the tracked object.
TTT	The tracked type traits class deriving from this class.

See Also

ServiceTracker

Member Typedef Documentation

template<class T, class TTT>

typedef T TrackedTypeTraitsBase< T, TTT >::TrackedType

Member Function Documentation

template<class T, class TTT>

static TrackedType TrackedTypeTraitsBase< T, TTT >::ConvertToTrackedType ( const InterfaceMap &  )

inlinestatic

template<class T, class TTT>

static TrackedType TrackedTypeTraitsBase< T, TTT >::ConvertToTrackedType ( void *  )

inlinestatic