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;
}
void CSocketSelectDlg::DeviceListUpdate( )
{
LRESULT lCount;
LRESULT lData;
VCIDEVICEINFO sInfo;
//
// remove all unavailable devices from the device list
//
lCount = SendItemMessage(IDC_DEVLIST, LB_GETCOUNT, 0, 0);
for (LRESULT lIndex = 0; lIndex < lCount; lIndex++)
{
lData = SendItemMessage(IDC_DEVLIST, LB_GETITEMDATA, lIndex, 0);
if ((lData != LB_ERR) &&
(vciDeviceGetInfo((HANDLE) lData, &sInfo) != VCI_OK))
{
vciDeviceClose((HANDLE) lData);
SendItemMessage(IDC_DEVLIST, LB_DELETESTRING, lIndex, 0);
}
}
//
// The selection may change because the currently selected
// item is deleted.
//
DeviceListSelect();
//
// enumerate all devices
//
if (m_hDevEnu != NULL)
{
vciEnumDeviceReset(m_hDevEnu);
while (vciEnumDeviceNext(m_hDevEnu, &sInfo) == VCI_OK)
DeviceListInsert(sInfo.VciObjectId);
}
}
