21. High-level API Reference
YLightSensor
YLightSensor.FindLightSensor()
yFindLightSensor()
Retrieves a light sensor for a given identifier.
js
function yFindLightSensor(
func
)
cpp
YLightSensor* yFindLightSensor( string
func
)
m
+(YLightSensor*) FindLightSensor : (NSString*)
func
pas
function yFindLightSensor(
func
: string): TYLightSensor
vb
function yFindLightSensor( ByVal
func
As String) As YLightSensor
cs
YLightSensor FindLightSensor( string
func
)
java
YLightSensor FindLightSensor( String
func
)
uwp
YLightSensor FindLightSensor( string
func
)
py
def FindLightSensor(
func
)
php
function yFindLightSensor(
$func
)
es
function FindLightSensor(
func
)
The identifier can be specified using several formats:
FunctionLogicalName
●
ModuleSerialNumber.FunctionIdentifier
●
ModuleSerialNumber.FunctionLogicalName
●
ModuleLogicalName.FunctionIdentifier
●
ModuleLogicalName.FunctionLogicalName
●
This function does not require that the light sensor is online at the time it is invoked. The returned object
is nevertheless valid. Use the method
YLightSensor.isOnline()
to test if the light sensor is
indeed online at a given time. In case of ambiguity when looking for a light sensor by logical name, no
error is notified: the first instance found is returned. The search is performed first by hardware name,
then by logical name. If a call to this object's is_online() method returns FALSE although you are certain
that the matching device is plugged, make sure that you did call registerHub() at application initialization
time.
Parameters :
func
a string that uniquely characterizes the light sensor
Returns :
a
YLightSensor
object allowing you to drive the light sensor.
360
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