/*************************************************************************
**
** Function : Display_Error
**
** Description : Display the CANline Error
** Parameters : HANDLE hResult
** Returnvalue : none
**
*************************************************************************/
void Display_Error(HRESULT hResult )
{
char szError[VCI_MAX_ERRSTRLEN];
if (hResult != NO_ERROR)
{
if (hResult == -1)
hResult = GetLastError();
szError[0] = 0;
vciFormatError(hResult, szError, sizeof(szError));
printf("Error Establishing CAN channel, Error Code: %s\n",szError);
}
}
int CANDriver::initialize()
{
CHAR errorBuffer[VCI_MAX_ERRSTRLEN];
HRESULT vciResult;
if ( (vciResult = vciInitialize()) != VCI_OK )
{
vciFormatError(vciResult, &errorBuffer[0], sizeof(errorBuffer));
emit errorOccured(errorBuffer);
return 1;
}
HANDLE hEnum;
if ( (vciResult = vciEnumDeviceOpen(&hEnum)) != VCI_OK )
{
vciFormatError(vciResult, &errorBuffer[0], sizeof(errorBuffer));
emit errorOccured(errorBuffer);
return 1;
}
vciEnum_ptr phEnum(&hEnum, vciEnumDeviceClose);
VCIDEVICEINFO deviceInfo;
if ( (vciResult = vciEnumDeviceNext(hEnum, &deviceInfo)) != VCI_OK )
{
vciFormatError(vciResult, &errorBuffer[0], sizeof(errorBuffer));
emit errorOccured(errorBuffer);
return 1;
}
HANDLE hDevice;
if ( (vciResult = vciDeviceOpen(deviceInfo.VciObjectId, &hDevice)) != VCI_OK )
{
vciFormatError(vciResult, &errorBuffer[0], sizeof(errorBuffer));
emit errorOccured(errorBuffer);
return 1;
}
vciDevice_ptr phDevice(&hDevice, vciDeviceClose);
return 0;
}
