TTypeUid Class Reference

#include <mw/coemop.h>

class TTypeUid : public TUid

Inherits from

Nested Classes and Structures

Detailed Description

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.

See also: MObjectProvider

Constructor & Destructor Documentation

TTypeUid ( TInt )

TTypeUid(TIntaUid)[inline]

Constructor that takes a Uid value.

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

Member Function Documentation

MakePtr ( T * )

Ptr MakePtr(T *aT)const [inline]

Constructs a Ptr which encapsulates the specified object pointer.

Parameters
aTA pointer to the object which is to be encapsulated.
Return Value
The constructed Ptr object

Null ( )

Ptr Null()[static, inline]

Reimplemented from TUid::Null()

Constructs a Ptr which encapsulates a NULL pointer.

Return Value
The constructed Ptr object