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Common BrightSign Methods:
AddEventListener
addEventListener()
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is a common BrightSign method that is used to listen for an event.
Syntax:
| Code Block | ||
|---|---|---|
| ||
target.addEventListener(type, listener |
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); |
type
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string
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: Specifies the type of event
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to listen for
listener
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function
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: The object to be notified when the event (of the specified
type) happens
RemoveEventListener
removeEventListener()
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is a common BrightSign method that is used to remove an event listener.
Syntax:
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Reserved for BrightSign Use Only:
checkPassword()
getDigestHash()
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| Code Block | ||
|---|---|---|
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target.removeEventListener(type, listener); |
typestring: Specifies the type of event to listen forlistenerfunction: The object to be notified when the event (of the specifiedtype) happens
Example
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|---|---|---|
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function GPIOcontrolDown(msg){
console.log(JSON.stringify(msg));
console.log(" GPIO : " + msg.detail)
}
// to add an event listener for the "controldown" GPIO event
control_port.addEventListener("controldown", GPIOcontrolDown);
// to remove the "controldown" GPIO event listener
control_port.removeEventListener("controldown", GPIOcontrolDown); |