GattCharacteristic.ValueChanged 事件

定义

命名空间:

Windows.Devices.Bluetooth.GenericAttributeProfile

设置客户端特征配置描述符后，应用可以注册事件处理程序，以便在从设备收到通知或指示时接收事件。

// 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) 

事件类型

TypedEventHandler<GattCharacteristic,GattValueChangedEventArgs>

Windows 要求

应用功能

bluetooth

注解

GattValueChangedEventArgs 对象表示 ValueChanged 事件处理程序接收的参数，该事件处理程序用于处理由蓝牙 LE 设备发送的特征值更改通知和指示事件。

另请参阅

• GattValueChangedEventArgs