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 state of the backlight.
HRESULT ITCGetScreenLight(
BOOL* pfON_OFF,
)
pfON_OFF
[out] TRUE if backlight is on.
[out] FALSE if backlight is off.
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 File: ITC50.H
Library: ITC50.LIB