CMPXPSKeyWatcher Class Reference

class CMPXPSKeyWatcher : public CActive

Publish and subscribe key watcher.

MPXCommon.lib

Inherits from

Constructor & Destructor Documentation

CMPXPSKeyWatcher(TUid, TInt, MMPXPSKeyObserver *)

CMPXPSKeyWatcher ( TUid aUid,
TInt aKey,
MMPXPSKeyObserver * aObserver
) [private]

Parameters

TUid aUid
TInt aKey
MMPXPSKeyObserver * aObserver

~CMPXPSKeyWatcher()

IMPORT_C ~CMPXPSKeyWatcher ( ) [virtual]

Member Functions Documentation

ConstructL()

void ConstructL ( ) [private]

DoCancel()

void DoCancel ( ) [protected, virtual]

Implements cancellation of an outstanding request.

This function is called as part of the active object's Cancel() .

It must call the appropriate cancel function offered by the active object's asynchronous service provider. The asynchronous service provider's cancel is expected to act immediately.

DoCancel() must not wait for event completion; this is handled by Cancel() .

CActive::Cancel

GetValue(TInt &)

IMPORT_C TInt GetValue ( TInt & aValue )

Parameters

TInt & aValue

GetValue(TDes8 &)

IMPORT_C TInt GetValue ( TDes8 & aValue )

Parameters

TDes8 & aValue

GetValue(TDes16 &)

IMPORT_C TInt GetValue ( TDes16 & aValue )

Parameters

TDes16 & aValue

NewL(TUid, TInt, MMPXPSKeyObserver *)

IMPORT_C CMPXPSKeyWatcher * NewL ( TUid aUid,
TInt aKey,
MMPXPSKeyObserver * aObserver
) [static]

Parameters

TUid aUid
TInt aKey
MMPXPSKeyObserver * aObserver

RunL()

void RunL ( ) [protected, virtual]

Handles an active object's request completion event.

A derived class must provide an implementation to handle the completed request. If appropriate, it may issue another request.

The function is called by the active scheduler when a request completion event occurs, i.e. after the active scheduler's WaitForAnyRequest() function completes.

Before calling this active object's RunL() function, the active scheduler has:

1. decided that this is the highest priority active object with a completed request

2. marked this active object's request as complete (i.e. the request is no longer outstanding)

RunL() runs under a trap harness in the active scheduler. If it leaves, then the active scheduler calls RunError() to handle the leave.

Note that once the active scheduler's Start() function has been called, all user code is run under one of the program's active object's RunL() or RunError() functions.

CActiveScheduler::Start CActiveScheduler::Error CActiveScheduler::WaitForAnyRequest TRAPD

SetValue(TInt)

IMPORT_C TInt SetValue ( TInt aValue )

Parameters

TInt aValue

SetValue(const TDesC8 &)

IMPORT_C TInt SetValue ( const TDesC8 & aValue )

Parameters

const TDesC8 & aValue

SetValue(const TDesC16 &)

IMPORT_C TInt SetValue ( const TDesC16 & aValue )

Parameters

const TDesC16 & aValue

Member Data Documentation

TInt iKey

TInt iKey [private]

MMPXPSKeyObserver * iObserver

MMPXPSKeyObserver * iObserver [private]

RProperty iProperty

RProperty iProperty [private]

TUid iUid

TUid iUid [private]