/// <summary> Reads string value from the given characteristic. </summary>
/// <param name="Characteristic"> The GATT characteristic. </param>
/// <param name="Value"> If the method completed with success contains the read value. </param>
/// <returns> If the method completed with success the returning value is
/// <see cref="wclErrors.WCL_E_SUCCESS" />. If the method failed the returning value is
/// one of the Bluetooth Framework error code. </returns>
protected Int32 ReadStringValue(wclGattCharacteristic?Characteristic, out String Value)
{
Value = "";
if (!FConnected)
{
return(wclConnectionErrors.WCL_E_CONNECTION_NOT_ACTIVE);
}
if (Characteristic == null)
{
return(wclBluetoothErrors.WCL_E_BLUETOOTH_LE_ATTRIBUTE_NOT_FOUND);
}
Byte[] CharValue;
Int32 Res = FClient.ReadCharacteristicValue(Characteristic.Value, wclGattOperationFlag.goNone,
out CharValue);
if (Res == wclErrors.WCL_E_SUCCESS)
{
if (CharValue != null && CharValue.Length > 0)
{
Value = Encoding.UTF8.GetString(CharValue);
}
}
return(Res);
}