ITCGetScreenBrightnessAcDc

This function is supported by all computers with a backlit LCD screen. See the computer user manual for more information on its backlight capability.

Returns the current LCD brightness level associated with the specified power source (AC or Battery/DC).

Syntax

HRESULT ITCGetScreenBrightnessAcDc(
DWORD dwPowerSelect,
DWORD* pdwBrightness
)

Parameters

dwPowerSelect
[in] 0xAC: AC power supply.
[in] 0xDC: Battery or DC power supply.

pdwBrightness
[out] Returns a value representing the current brightness level. The supported brightness range is from 1 to the value set by ITCGetMaxScreenBrightness.

Return Values

HRESULT indicating success or failure. Honeywell recommends using the result-code macros to evaluate the return code.

If your computer does not have a backlit screen, this function returns ITC_ERROR_FUNCTION_NOT_SUPPORTED.

Header and Library Files

Header File: ITC50.H

Library: ITC50.LIB

More Information

Light Control Functions