GattCharacteristic.ValueChanged Event
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
An App can register an event handler in order to receive events when notification or indications are received from a device, after setting the Client Characteristic Configuration Descriptor.
// Register
event_token ValueChanged(TypedEventHandler<GattCharacteristic, GattValueChangedEventArgs const&> const& handler) const;
// Revoke with event_token
void ValueChanged(event_token const* cookie) const;
// Revoke with event_revoker
GattCharacteristic::ValueChanged_revoker ValueChanged(auto_revoke_t, TypedEventHandler<GattCharacteristic, GattValueChangedEventArgs const&> const& handler) const;public event TypedEventHandler<GattCharacteristic,GattValueChangedEventArgs> ValueChanged;function onValueChanged(eventArgs) { /* Your code */ }
gattCharacteristic.addEventListener("valuechanged", onValueChanged);
gattCharacteristic.removeEventListener("valuechanged", onValueChanged);
- or -
gattCharacteristic.onvaluechanged = onValueChanged;Public Custom Event ValueChanged As TypedEventHandler(Of GattCharacteristic, GattValueChangedEventArgs) Event Type
Windows requirements
| App capabilities |
bluetooth
|
Remarks
The GattValueChangedEventArgs object represents the arguments received by a ValueChanged event handler used to process characteristic value change notification and indication events sent by a Bluetooth LE device.