How to: Program Applications to Turn the Smartphone Backlight Off and On

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An application should always explicitly turn off the backlight as soon as it is no longer needed. You use the Windows CE ReleasePowerRequirement function to turn off the backlight, as shown in the following code:

ReleasePowerRequirement(hPwrReq);

You use the Windows CE SetPowerRequirement function to turn on the backlight, as shown in the following code example:

See Also

How to: Determine Battery Status

How to: Prevent Automatic Power Down

How to: Suspend the Device

Memory and Power Management

Last updated on Friday, April 22, 2005

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