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6.4. LCD/Backlight related function
There are two backlight controls, screen backlight and keypad backlight. They are
controlled separately. For screen backlight, you can adjust brightness of backlight also.
6.4.1. Screen Backlight Control
Function Description:
This function turns screen backlight on or off.
Function call:
void
BacklightOn(BOOL
fON)
Parameter(Input)
fON: BOOL:
TRUE = turn on screen backlight.
FALSE= turn off backlight.
Return code:
6.4.2. Get Screen Backlight Status
Function Description:
This function returns the status of screen backlight.
Function call:
BOOL
GetBacklightStatus(void)
Return code:
TRUE = screen backlight is on.
FALSE = screen backlight is off.
6.4.3. Screen Backlight Brightness Control
Function Description:
This function adjusts screen backlight brightness.
Function call:
void
BrightnessUp(BOOL
fup)
Parameters(Input)
Fup: BOOL:
TRUE = adjust one step up.
FALSE = adjust one step down.
Return code:
