addEventListener()
is a common BrightSign method that is used to listen for an event.
target.addEventListener(type, listener); |
type
string: Specifies the type of event to listen for
listener
function: The object to be notified when the event (of the specified type
) happens
removeEventListener()
is a common BrightSign method that is used to remove an event listener.
target.removeEventListener(type, listener); |
type
string: Specifies the type of event to listen for
listener
function: The object to be notified when the event (of the specified type
) happens
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); |