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Archived:Modifying notification light settings using Symbian C++

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Archived.pngArchived: This article is archived because it is not considered relevant for third-party developers creating commercial solutions today. If you think this article is still relevant, let us know by adding the template {{ReviewForRemovalFromArchive|user=~~~~|write your reason here}}.

Article Metadata
Created: User:Nokia Developer KB (22 Aug 2011)
Last edited: hamishwillee (01 Aug 2012)
Article Metadata
Tested with
Devices(s): Nokia E52
Nokia E75
Nokia 5800 XpressMusic
Nokia N8-00
Platform(s): S60 3rd Edition, FP2
S60 5th Edition
S60 5th Edition
S60 3rd Edition FP2
Created: (22 Aug 2010)
Last edited: hamishwillee (01 Aug 2012)

Note.pngNote: The required header, blinklightinternalcrkeys.h, is not available in the Symbian^3 SDK.


This article gives an overview of modifying the notification light settings associated with E-series and 5th Edition devices.


The following code snippet is used for modifying the settings. The code snippet makes use of CRKeys. Headers

#include <blinklightinternalcrkeys.h>

Code for modifying the Blink light time

 TInt value = -1;
CRepository* CRep = CRepository::NewL( KCRUidNotificationLightSettings );
TInt err = CRep->Set( KNotificationLightNotificationTime, value ) ;

value can be either -1(no limit), 5, 30, or 60 min.

Code for enabling/disabling the events to be notified The notification light feature is available for events like new message, new e-mail, and missed call. Depending on the requirement the events to be notified can be enabled/disabled.

 TInt value = 1;//0 for diabling the notification
CRepository* CRep = CRepository::NewL( (KCRUidNotificationLightSettings) );
TInt err = CRep->Set( KNLBlinkForMissedCall, value ) ;
KNLBlinkForMissedCall - for missed call
KNLBlinkForMessages   - for messages
KNLBlinkForEmail      - for e-mail

Code for setting the visibility of the event The event to be notified can be made visible/hidden. The corresponding CR keys include:

KNLCCallSettingVisible - for missed call setting
KNLMessageSettingVisible - for message setting
KNLEmailSettingVisible - for mail setting
 TInt value = 0;//1 for making the message setting visible
CRepository* CRep = CRepository::NewL( (KCRUidNotificationLightSettings) );
err = CRep->Set( KNLMessageSettingVisible, value ) ;

Code for Symbian^3 Corresponding CR keys are used to get the blinking time duration. The duration will be copied in check.

CRepository *light;
TInt check;
TInt errCode = light->Get(KNotificationLightNotificationTime,check);
delete light;
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