Casio IT-2000W Technical Reference Manual page 237

SetCommForYMODEM
This function is used to set up the communication parameters (baud rate, parity, and stop bit) to be
used by the YMODEM library.
Before this function is called, the COM port must have been opened by the OpenYMODEM
function.
SYNTAX
#include "ymodem.h"
short WINAPI _export SetCommForYMODEM( long lBaud, short iParity,
INPUT
lBaud = Select from 1200, 2400, 4800, 9600 (default),14400, 19200, 38400,
iParity
iStopBits = Select either ONESTOPBIT(Default) or TWOSTOPBITS.
OUTPUT
= 0
= Other Refer to the error code table.
Note:

NOPARITY/ODDPARITY/EVENPARITY/ONESTOPBIT/TWOSTOPBITS have been
defined in windows.h as the following values. If calling this library (DLL) from Visual Basic,
directly specify their values.
#define NOPARITY
#define ODDPARITY
#define EVENPARITY
#define ONESTOPBIT
#define TWOSTOPBITS 2

If a value not permitted for each parameter is specified, the default value of the item will be
used. If, for example, "123" is specified as the baud rate, it does not cause an error, but the
default value of 9600 bps is automatically used.
57600, and 115200 bps.
= Select from NOPARITY(default), ODDPARITY, and
EVENPARITY.
Normal termination
0
1
2
0
237
short iStopBits )