Archived:Querying Keypad status using GetIndicatorPayload() does not work with custom screensaver (Known Issue)

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Article Metadata

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Tested with

Devices(s): All S60 2nd Edition, S60 3rd Edition (initial release) and FP1 devices

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Compatibility

Platform(s): S60 2nd Edition, S60 3rd Edition, and S60 3rd Edition, FP1

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Article

Created: User:Technical writer 1 (22 Feb 2008)

Last edited: hamishwillee (19 Jun 2012)

Overview

MScreensaverPluginHost::GetIndicatorPayload(TScreensaverIndicatorIndex aIndex, TIndicatorPayload & aResult); with EScreensaverIndicatorIndexKeyGuardState as the first parameter always returns a non-zero value irrespective of the keypad status.

Description

To create a customized screensaver, MScreensaverPluginHost::GetIndicatorPayload() needs to be used to query the status of Keypad, missed calls, new messages, active profile, etc. Using this API for querying the keypad status does not work in any of the S60 2nd Edition, S60 3rd Edition, and S60 3rd Edition, FP1 devices.

How to reproduce

 TIndicatorPayload result;
 TInt status = MScreensaverPluginHost::GetIndicatorPayload (
                     EScreensaverIndicatorIndexKeyGuardState, result );
 
 // If result is other than '0', keylock is activated
 if (status == KErrNone && result.iInteger != 0)
{
      // Draw key symbol
}

Solution

A workaround is to query the keylock status with the RAknKeyLock method.

 RAknKeyLock keyLock;
 if (keyLock.Connect() == KErrNone)
     {
     TBool locked = keyLock.IsKeyLockEnabled();
     if (locked)
         {
         // Draw key symbol
         }
     keyLock.Close();
     }