TwclGattClient Class
Bluetooth Low Energy GATT client.
type TwclGattClient = class(TwclBluetoothComponent) end;
The TwclGattClient type exposes the following members.
| Name | Description | |
|---|---|---|
 | Create(TComponent) | Creates new |
| Destroy | Frees the component. (Overrides TwclBluetoothComponent.Destroy.) |
| Name | Description | |
|---|---|---|
 | Address | Gets and sets a target Bluetooth device's MAC address. |
| ConnectOnRead | Gets and sets connection mode. |
| ForceNotifications | Gets and sets the notifications mode. |
| OnConnectionParamsChanged | The event fires when the connection parameters changed. |
| OnConnectionPhyChanged | The event fires when the connection PHY changed. |
| OnMaxPduSizeChanged | The event fires when the maximum PDU size changed. |
| Radio | Gets the Radio used for connection. |
| State | Gets the client state. |
| Name | Description | |
|---|---|---|
| Connect(TwclBluetoothRadio) | Connects to a remote Bluetooth LE device. |
| Disconnect | Disconnects from a remote device. |
 | DoCharacteristicChanged(Word,TwclGattCharacteristicValue) | Fires the |
| DoConnect(Integer) | Fires the |
| DoConnectionParamsChanged | Fires the |
| DoConnectionPhyChanged | Fires the |
| DoDisconnect(Integer) | Fires then |
| DoMaxPduSizeChanged | Fires the |
| Enter | Enters the Bluetooth component protection critical section. (Inherited from TwclBluetoothComponent.) |
| FindCharacteristic(TwclGattService,TwclGattUuid,TwclGattCharacteristic,TwclGattOperationFlag) | The method searches the characteristic in given service with the specified UUID. |
| FindService(TwclGattUuid,TwclGattService,TwclGattOperationFlag) | The method searches the service with specified UUID. |
| GetConnectionParams(TwclBluetoothLeConnectionParameters) | Gets the current connection parameters. |
| GetConnectionPhyInfo(TwclBluetoothLeConnectionPhy) | Reads the Bluetooth LE physical layer (PHY) information. |
| GetMaxPduSize(Word) | Reads the maximum PDU size for the current connection. |
| Leave | Leaves the Bluetooth component protection critical section. (Inherited from TwclBluetoothComponent.) |
| ReadCharacteristics(TwclGattService,TwclGattOperationFlag,TwclGattCharacteristics) | The method reads all the characteristics available for the specified service. |
| ReadCharacteristicValue(TwclGattCharacteristic,TwclGattOperationFlag,TwclGattCharacteristicValue,TwclGattProtectionLevel) | The method reads the value of the specified characteristic. |
| ReadDescriptors(TwclGattCharacteristic,TwclGattOperationFlag,TwclGattDescriptors) | The method reads all the descriptors available for the specified characteristic. |
| ReadDescriptorValue(TwclGattDescriptor,TwclGattOperationFlag,TwclGattDescriptorValue,TwclGattProtectionLevel) | The method reads the value of the specified descriptor. |
| ReadIncludedServices(TwclGattService,TwclGattOperationFlag,TwclGattServices) | The method reads all the included services available for a given service. |
| ReadServices(TwclGattOperationFlag,TwclGattServices) | Reads available services from a remote Bluetooth LE device. |
| SetConnectionParams(TwclBluetoothLeConnectionParametersType) | Overloaded. Request the connection parameters change to the specified preferred connection parameters. |
| SetConnectionParams(TwclBluetoothLeConnectionParametersValue) | Overloaded. Request the connection parameters change to the specified preferred connection parameters. |
| SetCopy(TwclCustomConnection) | The method sets new copy of the current connection. (Inherited from TwclBluetoothComponent.) |
| Subscribe(TwclGattCharacteristic,TwclGattSubscribeKind) | Subscribes for the characteristic changes notifications. |
| SubscribeForNotifications(TwclGattCharacteristic,TwclGattOperationFlag,TwclGattProtectionLevel,TwclGattSubscribeKind) | Subscribes for the characteristic changes notifications and writes the client configuration descriptor to the device. |
| Unsubscribe(TwclGattCharacteristic,TwclGattSubscribeKind) | Unsubscribes from the characteristic changes notifications. |
| UnsubscribeFromNotifications(TwclGattCharacteristic,TwclGattOperationFlag,TwclGattProtectionLevel,TwclGattSubscribeKind) | Unsubscribes from the characteristic changes notifications and writes the client configuration descriptor to the device. |
| WriteCharacteristicValue(TwclGattCharacteristic,TwclGattCharacteristicValue,TwclGattProtectionLevel,TwclGattWriteKind) | The method writes the specified characteristic value to the Bluetooth device. |
| WriteClientConfiguration(TwclGattCharacteristic,Boolean,TwclGattOperationFlag,TwclGattProtectionLevel,TwclGattSubscribeKind) | Writes the client configuration descriptor to the device. |
| WriteDescriptorValue(TwclGattDescriptor,TwclGattDescriptorValue,TwclGattProtectionLevel) | The method writes the specified descriptor value to the Bluetooth device. |
| Name | Description | |
|---|---|---|
 | OnCharacteristicChanged | The event fires when a subscribed characteristic value has been changed. |
| OnConnect | The event fires when a connection to a remote device has been established. |
| OnDisconnect | The even fires when a connection to a remote device has been closed. |
The TwclGattClient component enables an
application to connect to a Bluetooth Low Energy device and work
with GATT profiles.