property InSize : Word
Default: 8192
Determines the size, in bytes, of Async Professional CLX's input buffer.
InSize should always be fairly large, perhaps 8192 or 16384. The larger this size, the less likely the driver loses data if an ill-behaved program takes control of foreground processing for an extended time.
The buffer size cannot be changed when the serial port is open. When InSize is changed for an open port, the port is closed and re-opened with the new size.