From Xojo Documentation
| This item was deprecated in version 2019r2.
Please use SerialConnection.ClearBreak as a replacement.
| This method is only available on macOS and Windows platforms.
For cross-platform compatibility, use ＃If...＃Endif with the Target... specifiers to make sure you will not attempt to use this method on an incompatible platform.
Clears the break signal on the control immediately, without the need to call the Reset method. Available on Windows and macOS.