MXSIO_OpenCommport

This function opens the local COM port of the host computer with communication parameters.

C/C++

int MXSIO_OpenCommport(char * szCommport,

DWORD dwBaudrate,

BYTE bytDataFormat,

DWORD dwTimeout,

Int * hCommport);

Visual Basic

Declare Function MXSIO_OpenCommport Lib "MXIO.dll" (ByVal sCommport As String, ByVal nBaudrate As Long, ByVal bytDataFormat As Byte, ByVal nTimeout As Long, hCommport As Long) As Long

Arguments:

szCommport	Name of the common port. I.E., COM3.
dwBaudrate	Baud rate value. E.g. 1200, 9600, 19200.
bytDataFormat	Transmission data format.
dwTimeout	Time out value for serial adapter communication. The unit is in milliseconds.
hCommport	Handle of the opened COM port.

bytDataFormat:

bit_cnt (bit 0, 1)	0x00 = bit_5 0x01 = bit_6 0x02 = bit_7 0x03 = bit_8
stop_bit (bit 2)	0x00 = stop_1 0x04 = stop_2
parity (bit 3,4 5)	0x00 = none 0x08 = odd 0x18 = even 0x28 = mark 0x38 = space

Return Value:

Succeed	MXIO_OK
Fail	Refer to Return Codes.