BOOL CEnumerateSerial::UsingSetupAPI2(CSimpleArray<UINT>& ports, CSimpleArray<CString>& friendlyNames)
#endif
{
//Make sure we clear out any elements which may already be in the array(s)
#if defined CENUMERATESERIAL_USE_STL
ports.clear();
friendlyNames.clear();
#else
ports.RemoveAll();
friendlyNames.RemoveAll();
#endif
//Get the function pointers to "SetupDiGetClassDevs", "SetupDiGetClassDevs", "SetupDiEnumDeviceInfo", "SetupDiOpenDevRegKey"
//and "SetupDiDestroyDeviceInfoList" in setupapi.dll
CAutoHModule setupAPI(LoadLibraryFromSystem32(_T("SETUPAPI.DLL")));
if (setupAPI == NULL)
return FALSE;
SETUPDIOPENDEVREGKEY* lpfnLPSETUPDIOPENDEVREGKEY = reinterpret_cast<SETUPDIOPENDEVREGKEY*>(GetProcAddress(setupAPI, "SetupDiOpenDevRegKey"));
#if defined _UNICODE
SETUPDICLASSGUIDSFROMNAME* lpfnSETUPDICLASSGUIDSFROMNAME = reinterpret_cast<SETUPDICLASSGUIDSFROMNAME*>(GetProcAddress(setupAPI, "SetupDiClassGuidsFromNameW"));
SETUPDIGETCLASSDEVS* lpfnSETUPDIGETCLASSDEVS = reinterpret_cast<SETUPDIGETCLASSDEVS*>(GetProcAddress(setupAPI, "SetupDiGetClassDevsW"));
SETUPDIGETDEVICEREGISTRYPROPERTY* lpfnSETUPDIGETDEVICEREGISTRYPROPERTY = reinterpret_cast<SETUPDIGETDEVICEREGISTRYPROPERTY*>(GetProcAddress(setupAPI, "SetupDiGetDeviceRegistryPropertyW"));
#else
SETUPDICLASSGUIDSFROMNAME* lpfnSETUPDICLASSGUIDSFROMNAME = reinterpret_cast<SETUPDICLASSGUIDSFROMNAME*>(GetProcAddress(setupAPI, "SetupDiClassGuidsFromNameA"));
SETUPDIGETCLASSDEVS* lpfnSETUPDIGETCLASSDEVS = reinterpret_cast<SETUPDIGETCLASSDEVS*>(GetProcAddress(setupAPI, "SetupDiGetClassDevsA"));
SETUPDIGETDEVICEREGISTRYPROPERTY* lpfnSETUPDIGETDEVICEREGISTRYPROPERTY = reinterpret_cast<SETUPDIGETDEVICEREGISTRYPROPERTY*>(GetProcAddress(setupAPI, "SetupDiGetDeviceRegistryPropertyA"));
#endif
SETUPDIDESTROYDEVICEINFOLIST* lpfnSETUPDIDESTROYDEVICEINFOLIST = reinterpret_cast<SETUPDIDESTROYDEVICEINFOLIST*>(GetProcAddress(setupAPI, "SetupDiDestroyDeviceInfoList"));
SETUPDIENUMDEVICEINFO* lpfnSETUPDIENUMDEVICEINFO = reinterpret_cast<SETUPDIENUMDEVICEINFO*>(GetProcAddress(setupAPI, "SetupDiEnumDeviceInfo"));
if ((lpfnLPSETUPDIOPENDEVREGKEY == NULL) || (lpfnSETUPDICLASSGUIDSFROMNAME == NULL) || (lpfnSETUPDIDESTROYDEVICEINFOLIST == NULL) ||
(lpfnSETUPDIENUMDEVICEINFO == NULL) || (lpfnSETUPDIGETCLASSDEVS == NULL) || (lpfnSETUPDIGETDEVICEREGISTRYPROPERTY == NULL))
{
//Set the error to report
setupAPI.m_dwError = ERROR_CALL_NOT_IMPLEMENTED;
return FALSE;
}
//First need to convert the name "Ports" to a GUID using SetupDiClassGuidsFromName
DWORD dwGuids = 0;
lpfnSETUPDICLASSGUIDSFROMNAME(_T("Ports"), NULL, 0, &dwGuids);
if (dwGuids == 0)
{
//Set the error to report
setupAPI.m_dwError = GetLastError();
return FALSE;
}
//Allocate the needed memory
ATL::CHeapPtr<GUID> pGuids;
if (!pGuids.Allocate(dwGuids))
{
//Set the error to report
setupAPI.m_dwError = ERROR_OUTOFMEMORY;
return FALSE;
}
//Call the function again
if (!lpfnSETUPDICLASSGUIDSFROMNAME(_T("Ports"), pGuids, dwGuids, &dwGuids))
{
//Set the error to report
setupAPI.m_dwError = GetLastError();
return FALSE;
}
//Now create a "device information set" which is required to enumerate all the ports
HDEVINFO hDevInfoSet = lpfnSETUPDIGETCLASSDEVS(pGuids, NULL, NULL, DIGCF_PRESENT);
if (hDevInfoSet == INVALID_HANDLE_VALUE)
{
//Set the error to report
setupAPI.m_dwError = GetLastError();
return FALSE;
}
//Finally do the enumeration
BOOL bMoreItems = TRUE;
int nIndex = 0;
SP_DEVINFO_DATA devInfo;
while (bMoreItems)
{
//Enumerate the current device
devInfo.cbSize = sizeof(SP_DEVINFO_DATA);
bMoreItems = lpfnSETUPDIENUMDEVICEINFO(hDevInfoSet, nIndex, &devInfo);
if (bMoreItems)
{
//Did we find a serial port for this device
BOOL bAdded = FALSE;
//Get the registry key which stores the ports settings
HKEY hDeviceKey = lpfnLPSETUPDIOPENDEVREGKEY(hDevInfoSet, &devInfo, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_QUERY_VALUE);
if (hDeviceKey)
{
int nPort = 0;
if (QueryRegistryPortName(hDeviceKey, nPort))
{
#if defined CENUMERATESERIAL_USE_STL
ports.push_back(nPort);
#else
ports.Add(nPort);
#endif
bAdded = TRUE;
}
//Close the key now that we are finished with it
RegCloseKey(hDeviceKey);
}
//If the port was a serial port, then also try to get its friendly name
if (bAdded)
{
TCHAR szFriendlyName[1024];
szFriendlyName[0] = _T('\0');
DWORD dwSize = sizeof(szFriendlyName);
DWORD dwType = 0;
if (lpfnSETUPDIGETDEVICEREGISTRYPROPERTY(hDevInfoSet, &devInfo, SPDRP_DEVICEDESC, &dwType, reinterpret_cast<PBYTE>(szFriendlyName), dwSize, &dwSize) && (dwType == REG_SZ))
{
#if defined CENUMERATESERIAL_USE_STL
friendlyNames.push_back(szFriendlyName);
#else
friendlyNames.Add(szFriendlyName);
#endif
}
else
{
#if defined CENUMERATESERIAL_USE_STL
friendlyNames.push_back(_T(""));
#else
friendlyNames.Add(_T(""));
#endif
}
}
}
++nIndex;
}
//Free up the "device information set" now that we are finished with it
lpfnSETUPDIDESTROYDEVICEINFOLIST(hDevInfoSet);
//Return the success indicator
return TRUE;
}
BOOL CEnumerateSerial::EnumeratePorts()
{
int SPDRPlist[] = {
SPDRP_DEVICEDESC, SPDRP_FRIENDLYNAME, SPDRP_MFG,
SPDRP_LOCATION_INFORMATION, SPDRP_PHYSICAL_DEVICE_OBJECT_NAME,
-1};
// Clear anything from previous enumerate...
ResetPortList();
// Dynamically get pointers to device installation library (setupapi.dll)
// in case it isn't installed...
// SetupDiOpenDevRegKey
// SetupDiEnumDeviceInfo
// SetupDiDestroyDeviceInfoList
// SetupDiGetClassDevs
// SetupDiClassGuidsFromName
// SetupDiGetDeviceRegistryProperty
CLoadLib setupAPI(_T("SETUPAPI.DLL"));
if (setupAPI == NULL) return FALSE;
#define SETUPPROC(x,y) x* lpfn##x = reinterpret_cast<x*>(GetProcAddress(setupAPI,y))
SETUPPROC(SETUPDIOPENDEVREGKEY,"SetupDiOpenDevRegKey");
SETUPPROC(SETUPDIENUMDEVICEINFO, "SetupDiEnumDeviceInfo");
SETUPPROC(SETUPDIDESTROYDEVICEINFOLIST, "SetupDiDestroyDeviceInfoList");
#if defined _UNICODE
SETUPPROC(SETUPDIGETCLASSDEVS, "SetupDiGetClassDevsW");
SETUPPROC(SETUPDICLASSGUIDSFROMNAME, "SetupDiClassGuidsFromNameW");
SETUPPROC(SETUPDIGETDEVICEREGISTRYPROPERTY, "SetupDiGetDeviceRegistryPropertyW");
#else
SETUPPROC(SETUPDIGETCLASSDEVS, "SetupDiGetClassDevsA");
SETUPPROC(SETUPDICLASSGUIDSFROMNAME, "SetupDiClassGuidsFromNameA");
SETUPPROC(SETUPDIGETDEVICEREGISTRYPROPERTY, "SetupDiGetDeviceRegistryPropertyA");
#endif
if ((lpfnSETUPDIOPENDEVREGKEY == NULL) ||
(lpfnSETUPDIENUMDEVICEINFO == NULL) ||
(lpfnSETUPDIGETDEVICEREGISTRYPROPERTY == NULL) ||
(lpfnSETUPDIGETCLASSDEVS == NULL) ||
(lpfnSETUPDICLASSGUIDSFROMNAME == NULL) ||
(lpfnSETUPDIDESTROYDEVICEINFOLIST == NULL))
{
SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE;
}
// First need to convert the name "Ports" to a GUID using SetupDiClassGuidsFromName...
DWORD dwGuids = 0;
lpfnSETUPDICLASSGUIDSFROMNAME(_T("Ports"), NULL, 0, &dwGuids);
if (dwGuids == 0) return FALSE;
// Allocate the needed memory...
CHeapPtr<GUID> GuidArray;
GUID *pGuids = (GUID*)GuidArray.Allocate(sizeof(GUID) * dwGuids);
if (pGuids==NULL) {
SetLastError(ERROR_OUTOFMEMORY);
return FALSE;
}
// Call the function again...
if (!lpfnSETUPDICLASSGUIDSFROMNAME(_T("Ports"), pGuids, dwGuids, &dwGuids))
return FALSE;
// Now create a "device information set" which is required to enumerate all the ports...
HDEVINFO hDevInfoSet = lpfnSETUPDIGETCLASSDEVS(pGuids, NULL, NULL, DIGCF_PRESENT);
if (hDevInfoSet == INVALID_HANDLE_VALUE)
return FALSE;
// Finally do the enumeration...
int nIndex = 0;
SP_DEVINFO_DATA devInfo;
CHeapPtr<TCHAR> tempstr(256);
CSerialPortInfo *portinfo = NULL;
// Enumerate the current device...
devInfo.cbSize = sizeof(SP_DEVINFO_DATA);
while (lpfnSETUPDIENUMDEVICEINFO(hDevInfoSet, nIndex, &devInfo))
{
portinfo = NULL;
// Get the registry key which stores the ports settings...
HKEY hDeviceKey = lpfnSETUPDIOPENDEVREGKEY(hDevInfoSet, &devInfo, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_QUERY_VALUE);
if (hDeviceKey) {
tempstr.FillZero();
DWORD dwSize = tempstr.SizeOf();
DWORD dwType = 0;
// Read name of port. If formatted as "COMxx" then allocate a port slot...
if ((RegQueryValueEx(hDeviceKey, _T("PortName"), NULL, &dwType, reinterpret_cast<LPBYTE>((TCHAR*)tempstr), &dwSize) == ERROR_SUCCESS) && (dwType == REG_SZ))
if (_tcslen(tempstr) > 3)
if ((_tcsnicmp(tempstr, _T("COM"), 3) == 0) && IsNumber(&(tempstr[3])))
portinfo = AddPort(_ttoi(&(tempstr[3])));
// Close the key now that we are finished with it...
RegCloseKey(hDeviceKey);
}
// If a serial port, then try getting additional useful descriptive info...
if (portinfo) {
for (int i=0; SPDRPlist[i]>=0; i++) {
tempstr.FillZero();
DWORD dwSize = tempstr.SizeOf();
DWORD dwType = 0;
if (lpfnSETUPDIGETDEVICEREGISTRYPROPERTY(hDevInfoSet, &devInfo, SPDRPlist[i], &dwType, reinterpret_cast<PBYTE>((TCHAR*)tempstr), dwSize, &dwSize) && (dwType == REG_SZ))
switch (SPDRPlist[i]) {
case SPDRP_MFG : portinfo->SetManufacturer(tempstr); break;
case SPDRP_DEVICEDESC : portinfo->SetDeviceDesc(tempstr); break;
case SPDRP_FRIENDLYNAME : portinfo->SetFriendlyName(tempstr); break;
case SPDRP_LOCATION_INFORMATION : portinfo->SetLocationInfo(tempstr); break;
case SPDRP_PHYSICAL_DEVICE_OBJECT_NAME : portinfo->SetPhysLocation(tempstr); break;
}
}
// Get COM port properties...
HANDLE hPort = ::CreateFile(portinfo->GetPortDeviceName(), GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
if (hPort != INVALID_HANDLE_VALUE) {
COMMPROP cp;
GetCommProperties(hPort, &cp);
portinfo->SetCommProp(cp);
TRACE ("Port %d: CommProp: maxbaud=%08x settablebaud=%08x\n",portinfo->GetPortNum(),cp.dwMaxBaud,cp.dwSettableBaud);
CloseHandle(hPort);
}
}
++nIndex;
}
// Free up the "device information set" now that we are finished with it
lpfnSETUPDIDESTROYDEVICEINFOLIST(hDevInfoSet);
// Return the success indicator
return TRUE;
}
