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| int ouvrirPort(int numport) { // Retourne 1 en cas de succès
//char szPort[16];
TCHAR szPort[15];
//sprintf(szPort, "\\\\.\\COM%d:", numport);//modifie pour prendre les port com>9
wsprintf(szPort, _T("COM%d:"), numport);
hPort = CreateFile(
(LPCTSTR)szPort, //Pointer to the name of the port
GENERIC_READ|GENERIC_WRITE, //accès en lecture ou en écriture
0, //Share mode
NULL, //Pointer to the security attribute
OPEN_EXISTING, //Cela indique que l'instance sera créée si que le port existe
FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED, //Port attributes
NULL);
if(hPort==INVALID_HANDLE_VALUE) {
return 0;
}
if(!m_Ov.hEvent)
m_Ov.hEvent=CreateEvent(NULL, // no security attributes
FALSE, // auto reset event
FALSE, // not signaled
NULL // no name
);
SetEvent(m_Ov.hEvent);
DCB PortDCB;
if (!GetCommState (hPort, &PortDCB)) { // Structure de configuration
return 0;
}
// mise à jour de la structure
PortDCB.DCBlength = sizeof (DCB);
PortDCB.BaudRate = 9600;
PortDCB.fBinary = TRUE;
PortDCB.fParity = TRUE;
PortDCB.fOutxCtsFlow = FALSE;
PortDCB.fOutxDsrFlow = FALSE;
PortDCB.fDtrControl = DTR_CONTROL_ENABLE;
PortDCB.fDsrSensitivity = FALSE;
PortDCB.fTXContinueOnXoff = TRUE;
PortDCB.fOutX = FALSE;
PortDCB.fInX = FALSE;
PortDCB.fErrorChar = FALSE;
PortDCB.fNull = FALSE;
PortDCB.fRtsControl = RTS_CONTROL_ENABLE;
PortDCB.fAbortOnError = FALSE;
PortDCB.ByteSize = 8;
PortDCB.Parity = NOPARITY;
PortDCB.StopBits = ONESTOPBIT;
//Renvoie des nouvelles informations dans le registre de votre port série
if (SetCommState (hPort, &PortDCB)) {
GetCommTimeouts(hPort,&m_ComTimeouts);
m_ComTimeouts.ReadIntervalTimeout = 0xFFFFFFFF;
m_ComTimeouts.ReadTotalTimeoutMultiplier = 0;
m_ComTimeouts.ReadTotalTimeoutConstant = 0;
m_ComTimeouts.WriteTotalTimeoutMultiplier = 0;
m_ComTimeouts.WriteTotalTimeoutConstant = 10000;
if (!SetCommTimeouts(hPort,&m_ComTimeouts))
return 0;
memset(&m_OverlappedRead,0,sizeof(OVERLAPPED));
m_OverlappedRead.hEvent = CreateEvent(NULL,TRUE,FALSE,NULL);
memset(&m_OverlappedWrite,0,sizeof(OVERLAPPED));
m_OverlappedWrite.hEvent = CreateEvent(NULL,TRUE,FALSE,NULL);
if (m_OverlappedRead.hEvent==NULL || m_OverlappedWrite.hEvent==NULL)
return 0;
if(m_OverlappedRead.hEvent!=NULL)
CloseHandle(m_OverlappedRead.hEvent);
if(m_OverlappedWrite.hEvent!=NULL)
CloseHandle(m_OverlappedWrite.hEvent);
// PRM2: Indique que l'on va détecter la réception (entrée de type DWORD)
SetCommMask(hPort,EV_RXCHAR); // définit les évènements pour lesquels ont va réagir par rapport à notre instance
return 1;
} else
return 0;
} |
