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In Our Project we are playing the video. While playing video the black screen is coming after 1 min of
duration as we set the screentimeout as 1 min. but once i touch again
the screen or Keypad then its goes off and again able to see the screen.
We want the black screen is not come even though the screen timeout is set as 1 min.
For this we are using IBacklight Interface. We are Using the
IBACKLIGHT_Enable(po) for not going in
back-light off mode. Any solution to keep backlight on for long time?

IBacklight methods enables/disables backlight but it doesn't let
applications decide how long a backlight will stay enabled and doesn't
protect backlight enabled by one application from being disabled by
another application.
With IBacklight_Enable() you can turn on the backlight but it
doesn't keep it on for unlimited time. It gets turned off after native
app (device settings where you set backlight time as 1 minute) disables
it after one minute.
To keep backlight on for long time, you may call IBacklight_Enable() periodically; may be after every 1 minute.This may affect performance though.
 
Generally backlight goes off after some specified time in all devices,
user has to touch the screen or press any key to activate backlight. So I
don't think there is a need to pro-grammatically keep it on always.

IBacklight methods enables/disables backlight but it doesn't let
applications decide how long a backlight will stay enabled and doesn't
protect backlight enabled by one application from being disabled by
another application.
With IBacklight_Enable() you can turn on the backlight but it
doesn't keep it on for unlimited time. It gets turned off after native
app (device settings where you set backlight time as 1 minute) disables
it after one minute.
To keep backlight on for long time, you may call IBacklight_Enable() periodically; may be after every 1 minute.This may affect performance though.
 
Generally backlight goes off after some specified time in all devices,
user has to touch the screen or press any key to activate backlight. So I
don't think there is a need to pro-grammatically keep it on always.