Casio DT-X8 Series Manual de usuario Pagina 78

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3.54 SysUpdateLED
This function turns on the LED. With SysSetLED function, it takes about 130 milliseconds before
turning on the LED. This is due to the hardware specifications. However, using the function and
SysPrepareLED function together will immediately turn it on. See also "How to Use the
Function" below.
Calling Sequences
[C++]
DWORD SysUpdateLED(
DWORD dwLEDMode
)
[Visual Basic]
Public Shared Function SysUpdateLED( _
ByVal dwLEDMode As Int32 _
) As Int32
[C#]
public static Int32 SysUpdateLED(
Int32 dwLEDMode
);
Parameters
dwLEDMode
This parameter is for specifying turning on or off the LED selecting one of the values listed
below.
LED_OFF : Turns off the LED.
LED_GREEN : Turns on the LED in green with current value set in the parameter.
LED_RED : Turns on the LED in red with current value set in the parameter.
LED_ORANGE : Turns on the LED in orange with current value set in the parameter.
Return Values
TRUE : Normal end
FALSE : Abnormal end
FUNCTION_UNSUPPORT : Unsupported error
How to Use the Function
Before turning on the LED, set the preparation by carrying out SysPrepareLED function.
Then carry out SysUpdateLED function to turn it on under conditions preset with
SysPrepareLED function. If SysUpdateLED function is carried out, allow a time
period of 130 milliseconds or more to elapse after carrying out SysPrepareLED function
and then proceed to turning on the LED.
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