2.5.1.2 DCB

Name

DCB

Description

Declaration

typedef struct _DCB {
    DWORD DCBlength;
    DWORD BaudRate;
    DWORD fBinary:1;
    DWORD fParity:1;
    DWORD fOutxCtsFlow:1;
    DWORD fOutxDsrFlow:1;
    DWORD fDtrControl:2;
    DWORD fDsrSensitivity:1;
    DWORD fTXContinueOnXoff:1;
    DWORD fOutX:1;
    DWORD fInX:1;
    DWORD fErrorChar:1;
    DWORD fNull:1;
    DWORD fRtsControl:2;
    DWORD fAbortOnError:1;
    DWORD fDummy2:17;
    WORD wReserved;
    WORD XonLim;
    WORD XoffLim;
    BYTE ByteSize;
    BYTE Parity;
    BYTE StopBits;
    char XonChar;
    char XoffChar;
    char ErrorChar;
    char EofChar;
    char EvtChar;
    WORD wReserved1;
} DCB, *LPDCB;

Members

DCBlength

sizeof(DCB)

BaudRate

Baudrate at which running

fBinary:1

Binary Mode (skip EOF check)

fParity:1

Enable parity checking

fOutxCtsFlow:1

CTS handshaking on output

fOutxDsrFlow:1

DSR handshaking on output

fDtrControl:2

DTR Flow control

fDsrSensitivity:1

DSR Sensitivity

fTXContinueOnXoff:1

Continue TX when Xoff sent

fOutX:1

Enable output X-ON/X-OFF

fInX:1

Enable input X-ON/X-OFF

fErrorChar:1

Enable Err Replacement

fNull:1

Enable Null stripping

fRtsControl:2

Rts Flow control

fAbortOnError:1

Abort all reads and writes on Error

fDummy2:17

Reserved

wReserved

Not currently used

XonLim

Transmit X-ON threshold

XoffLim

Transmit X-OFF threshold

ByteSize

Number of bits/byte, 4-8

Parity

0-4=None,Odd,Even,Mark,Space

StopBits

0,1,2 = 1, 1.5, 2

XonChar

Tx and Rx X-ON character

XoffChar

Tx and Rx X-OFF character

ErrorChar

Error replacement char

EofChar

End of Input character

EvtChar

Received Event character

wReserved1

Fill for now.

Remark

Examples

Header to Include

mscomm.h

See Also

Reference