To turn on the backlight and keep it turned on, a timer can be used that fires every ten seconds. When the timer fires a raw event is simulated, which keeps the backlight turned on.
The following example code illustrates this.
void CStreamingClientAppUi::ConstructL()
{
......
iTimer=CPeriodic::NewL(CActive::EPriorityStandard); // CPeriodic *iTimer;
iTimer->Start(KTimerTick,KTimerTick,TCallBack(Tick,this));//const TInt KTimerTick = 10 * 1000 * 1000;
......
}
CStreamingClientAppUi::~CStreamingClientAppUi()
{
iTimer->Cancel();
delete iTimer;
}
//This method should be declared as static
// static TInt Tick(TAny* /*aAny*/);
TInt CStreamingClientAppUi::Tick(TAny */*aObject*/)
{
User::ResetInactivityTime();
RWsSession session;
session.Connect();
TRawEvent event;
event.Set(TRawEvent::EActive);
session.SimulateRawEvent(event);
session.Flush();
session.Close();
return KErrNone; //Return that we want the timer to continue calling us.
}
