TTypeUid Class Reference

class TTypeUid : public TUid

Part of the object provider mechanism, this class encapsulates the Uid that identifies the type of object that an object provider is to get.

The class is also used to encapsulate a pointer to the object that the object provider has found.

An object that is intended to be capable of being retrieved by the object provider mechanism must include enum {ETypeId = 0xabcdefgh}; in its class definition, where 0xabcdefgh is the Uid value. The macro DECLARE_TYPE_ID can be used to do this.

An instance of this class is passed to the MObjectProvider::MopSupplyObject() function implemented by an object provider. A TTypeUid::Ptr is also returned by this function.

MObjectProvider

Inherits from

TTypeUid
- TUid

Nested Classes and Structures

TTypeUid::Ptr

Public Member Functions
	TTypeUid(TInt)
Ptr	MakePtr(T *)
Ptr	Null()

Inherited Functions
	TUid::Name()const
	TUid::Uid(TInt)
	TUid::operator!=(const TUid &)const
	TUid::operator==(const TUid &)const

Inherited Attributes
	TUid::iUid

Constructor & Destructor Documentation

TTypeUid(TInt)

TTypeUid

(

TInt

aUid

)

[inline]

Constructor that takes a Uid value.

Parameters

TInt aUid

The Uid value that defines the type of object that an object provider is to get.

Member Functions Documentation

MakePtr(T *)

Ptr

MakePtr

(

T *

)

const [inline]

Constructs a Ptr which encapsulates the specified object pointer.

The constructed Ptr object

Parameters

T * aT

A pointer to the object which is to be encapsulated.

Null()

Ptr

Null

(

)

[static, inline]

Constructs a Ptr which encapsulates a NULL pointer.

The constructed Ptr object