gabonator/usb.cpp

## usb.cpp
#include "usb.h"

#ifndef DISABLE_USB

#pragma comment(lib, "setupapi.lib")

#include "SetupAPI.h"
#include "cfgmgr32.h"

#pragma pack(4)

DEFINE_GUID(GUID_DEVINTERFACE_VOLUME,
			00110   0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2, 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);


bool RemovableScanDisks(CArray <stDriveVolume, stDriveVolume> &arrDrives)
{
	WCHAR	caDrive[4] = _T("A:\\");
	WCHAR	volume[1024];
	DWORD	dwDriveMask;

	// Get all drives in the system.
	dwDriveMask = GetLogicalDrives();

	if(dwDriveMask == 0)
		return false;

	// Loop for all drives (MAX_DRIVES = 26)
	for(; dwDriveMask; dwDriveMask >>= 1, caDrive[0]++)
	{
		// if a drive is present,
		if(dwDriveMask & 1)
		{
			// If a drive is removable
			if(GetDriveType(caDrive) == DRIVE_REMOVABLE)
				//Get its volume info and store it in the global variable.
				if(GetVolumeNameForVolumeMountPoint(caDrive, volume, 1024))
					arrDrives.Add( stDriveVolume( caDrive[0], volume ));
		}
	}
	return true;
}

bool RemovableFillInfo( CArray <stDriveVolume, stDriveVolume> &arrDrives )
{
	HDEVINFO	hDevInfo;
	GUID		guid;
	BYTE		buffer[1024];
	DWORD		dwRequiredSize ;
	WCHAR		buf[1024];
	DEVINST		devInstParent;
	DWORD		dwIndex;
	WCHAR		volume[1024];
	int			nLength;

	SP_DEVICE_INTERFACE_DATA			devInterfaceData;
	SP_DEVINFO_DATA						devInfoData;
	PSP_DEVICE_INTERFACE_DETAIL_DATA	pDevDetail;

	// GUID_DEVINTERFACE_VOLUME is interface Guid for Volume class devices.
	guid = GUID_DEVINTERFACE_VOLUME;

	// Get device Information handle for Volume interface
	hDevInfo = SetupDiGetClassDevs(&guid, NULL, NULL,
		/*DIGCF_ALLCLASSES | */
		DIGCF_DEVICEINTERFACE |
		DIGCF_PRESENT);

	if(hDevInfo == INVALID_HANDLE_VALUE)
		return false;

	SP_DEVINFO_DATA* pspDevInfoData =
		(SP_DEVINFO_DATA*)HeapAlloc(GetProcessHeap(), 0, sizeof(SP_DEVINFO_DATA));
	pspDevInfoData->cbSize = sizeof(SP_DEVINFO_DATA);
/*
	for(int i=0; SetupDiEnumDeviceInfo(hDevInfo,i,pspDevInfoData); i++)
	{
		char buf[1024];
		DWORD nSize;
		if ( SetupDiGetDeviceInstanceIdA(hDevInfo, pspDevInfoData, buf, sizeof(buf), &nSize) )
		{
			DWORD DataT;
			if ( SetupDiGetDeviceRegistryPropertyA(hDevInfo, pspDevInfoData,
				SPDRP_FRIENDLYNAME, &DataT, (PBYTE)buf, sizeof(buf), &nSize) )
			{
				int f = 9;
				OutputDebugStringA( "friendlyname: " );
				OutputDebugStringA( buf );
				OutputDebugStringA( "\n" );
			}
			if ( SetupDiGetDeviceRegistryPropertyA(hDevInfo, pspDevInfoData,
				SPDRP_DEVICEDESC, &DataT, (PBYTE)buf, sizeof(buf), &nSize) )
			{
				OutputDebugStringA( "devicedesc: " );
				OutputDebugStringA( buf );
				OutputDebugStringA( "\n" );
			}
		}
	}
*/

	// Loop until device interfaces are found.
	for(dwIndex = 0; ; dwIndex ++)
	{
		ZeroMemory(&devInterfaceData, sizeof(devInterfaceData));
		devInterfaceData.cbSize = sizeof(devInterfaceData);

		// Get device Interface data.
		if(!SetupDiEnumDeviceInterfaces(hDevInfo, NULL, &guid, dwIndex, &devInterfaceData))
			break;

		ZeroMemory(&devInfoData, sizeof(devInfoData));
		devInfoData.cbSize = sizeof(devInfoData);

		pDevDetail			= (PSP_DEVICE_INTERFACE_DETAIL_DATA)buffer;
		pDevDetail->cbSize	= sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);

		// Get device interface detail data to get
		//	Device Instance from SP_DEVINFO_DATA and
		//  Device Path from SP_DEVICE_INTERFACE_DETAIL_DATA
		SetupDiGetDeviceInterfaceDetail(hDevInfo,
			&devInterfaceData,
			pDevDetail,			// SP_DEVICE_INTERFACE_DETAIL_DATA
			1024,
			&dwRequiredSize,
			&devInfoData);		// SP_DEVINFO_DATA

	/*
		char buf[1024];
		DWORD nSize;
		if ( SetupDiGetDeviceInstanceIdA(hDevInfo, &devInfoData, buf, sizeof(buf), &nSize) )
		{
			OutputDebugStringA( buf );
			OutputDebugStringA( " " );
			DWORD DataT;
			if ( SetupDiGetDeviceRegistryPropertyA(hDevInfo, &devInfoData,
				SPDRP_FRIENDLYNAME, &DataT, (PBYTE)buf, sizeof(buf), &nSize) )
			{
				OutputDebugStringA( buf );
				OutputDebugStringA( " " );
			} else if ( SetupDiGetDeviceRegistryPropertyA(hDevInfo, &devInfoData,
				SPDRP_DEVICEDESC, &DataT, (PBYTE)buf, sizeof(buf), &nSize) )
			{
				OutputDebugStringA( buf );
				OutputDebugStringA( " " );
			}
			OutputDebugStringA( "\n" );
		}
	*/

		// Get the device instance of parent. This points to USBSTOR.
		CM_Get_Parent(&devInstParent,devInfoData.DevInst, 0);
		// Get the device instance of grand parent. This points to USB root.
		CM_Get_Parent(&devInstParent,devInstParent, 0);
		// Get the device ID of the USB root.
		CM_Get_Device_ID(devInstParent, buf, 1024, 0);

		// If USB root device matches with the input device ID, it is the target
		// device.
		if( buf != NULL /*&& wcscmp(lpDevID,buf) == 0*/ )
		{
			// Append \ to the DevicePath of SP_DEVICE_INTERFACE_DETAIL_DATA
			nLength		=	(int)wcslen(pDevDetail->DevicePath);
			pDevDetail->DevicePath[nLength]		= '\\';
			pDevDetail->DevicePath[nLength+1]	= 0;

			// Get Volume mount point for the device path.
			if(GetVolumeNameForVolumeMountPoint(pDevDetail->DevicePath, volume, 1024))
			{
				// Compare volume mount point with the one stored earlier.
				// If both match, return the corresponding drive letter.

				for(int nLoopIndex=0; nLoopIndex < arrDrives.GetSize(); nLoopIndex++)
					if ( arrDrives[nLoopIndex].strFriendlyProduct.IsEmpty() )
						if(wcscmp(arrDrives[nLoopIndex].strVolume, volume)==0)
						{
							CString strBuffer( buf );
							int nVid = strBuffer.Find(_T("VID_"));
							int nPid = strBuffer.Find(_T("PID_"));
							if ( nVid == -1 || nPid == -1 )
								continue;

							int nVidE = strBuffer.Find(_T("&"), nVid);
							int nPidE = strBuffer.Find(_T("\\"), nPid);
							if ( nVidE == -1 || nPidE == -1 )
							{
								continue;
							}
							arrDrives[nLoopIndex].strFriendlyProduct = strBuffer.Mid(nVid+4, nVidE-nVid-4);
							arrDrives[nLoopIndex].strFriendlyVendor = strBuffer.Mid(nPid+4, nPidE-nPid-4);
							arrDrives[nLoopIndex].strDevicePath = CString(pDevDetail->DevicePath);
						}
			}
		}
	}

	SetupDiDestroyDeviceInfoList(hDevInfo);
	return true;
}

static const GUID guidDISK =
{
	0x53f56307, 0xb6bf, 0x11d0, { 0x94, 0xf2, 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b }
};

#include "fscommands.h"

// http://www.codeproject.com/KB/system/RemoveDriveByLetter.aspx

CString GetDevicePathByDeviceNumber(long DeviceNumber, UINT DriveType, char* szDosDeviceName)
{
	bool IsFloppy = (strstr(szDosDeviceName, "\\Floppy") != NULL); // is there a better way?

	GUID* guid;

	switch (DriveType) {
  case DRIVE_REMOVABLE:
	  if ( IsFloppy ) {
		  guid = (GUID*)&GUID_DEVINTERFACE_FLOPPY;
	  } else {
		  guid = (GUID*)&GUID_DEVINTERFACE_DISK;
	  }
	  break;
  case DRIVE_FIXED:
	  guid = (GUID*)&GUID_DEVINTERFACE_DISK;
	  break;
  case DRIVE_CDROM:
	  guid = (GUID*)&GUID_DEVINTERFACE_CDROM;
	  break;
  default:
	  return _T("");
	}

	// Get device interface info set handle
	// for all devices attached to system
	HDEVINFO hDevInfo = SetupDiGetClassDevs(guid, NULL, NULL,
		DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);

	if (hDevInfo == INVALID_HANDLE_VALUE)  {
		return _T("");
	}

	// Retrieve a context structure for a device interface
	// of a device information set.
	DWORD dwIndex = 0;
	BOOL bRet = FALSE;

	BYTE Buf[1024];
	PSP_DEVICE_INTERFACE_DETAIL_DATA pspdidd =
		(PSP_DEVICE_INTERFACE_DETAIL_DATA)Buf;
	SP_DEVICE_INTERFACE_DATA         spdid;
	SP_DEVINFO_DATA                  spdd;
	DWORD                            dwSize;

	spdid.cbSize = sizeof(spdid);

	while ( true )  {
		bRet = SetupDiEnumDeviceInterfaces(hDevInfo, NULL,
			guid, dwIndex, &spdid);
		if (!bRet) {
			break;
		}

		dwSize = 0;
		SetupDiGetDeviceInterfaceDetail(hDevInfo,
			&spdid, NULL, 0, &dwSize, NULL);

		if ( dwSize!=0 && dwSize<=sizeof(Buf) ) {
			pspdidd->cbSize = sizeof(*pspdidd); // 5 Bytes!

			ZeroMemory((PVOID)&spdd, sizeof(spdd));
			spdd.cbSize = sizeof(spdd);

			long res =
				SetupDiGetDeviceInterfaceDetail(hDevInfo, &

				spdid, pspdidd,
				dwSize, &dwSize,
				&spdd);
			if ( res ) {
				HANDLE hDrive = CreateFile(pspdidd->DevicePath,0,
					FILE_SHARE_READ | FILE_SHARE_WRITE,
					NULL, OPEN_EXISTING, NULL, NULL);
				if ( hDrive != INVALID_HANDLE_VALUE ) {
					STORAGE_DEVICE_NUMBER sdn;
					DWORD dwBytesReturned = 0;
					res = DeviceIoControl(hDrive,
						IOCTL_STORAGE_GET_DEVICE_NUMBER,
						NULL, 0, &sdn, sizeof(sdn),
						&dwBytesReturned, NULL);
					if ( res ) {
						if ( DeviceNumber == (long)sdn.DeviceNumber ) {
							CloseHandle(hDrive);
							SetupDiDestroyDeviceInfoList(hDevInfo);
							return CString(pspdidd->DevicePath);
						}
					}
					CloseHandle(hDrive);
				}
			}
		}
		dwIndex++;
	}

	SetupDiDestroyDeviceInfoList(hDevInfo);

	return _T("");
}


bool RemovableFriendlyName( stDriveVolume &volDrive )
{
	// "\\\\.\\X:"
	// "\\\\\?\\Volume{3dd04400-bdaa-11da-af8e-806d6172696f}"

	CString strDevice;
	strDevice.Format(_T("\\\\.\\%c:"), toupper(volDrive.chDrive));
	//strDevice = volDrive.strVolume.Left( volDrive.strVolume.GetLength()-1 );

	HANDLE hDevice = CreateFile(strDevice,
		GENERIC_READ | GENERIC_WRITE,
		FILE_SHARE_READ | FILE_SHARE_WRITE,
		NULL, OPEN_EXISTING, NULL, NULL);

	if ( hDevice == NULL || hDevice == INVALID_HANDLE_VALUE )
		return false;

	DWORD dwOutBytes = 0;
	STORAGE_PROPERTY_QUERY Query;

	Query.PropertyId = StorageDeviceProperty;
	Query.QueryType = PropertyStandardQuery;

	char Buf[1024] = {0};
	PSTORAGE_DEVICE_DESCRIPTOR pDevDesc = (PSTORAGE_DEVICE_DESCRIPTOR)Buf;
	pDevDesc->Size = sizeof(Buf);

	BOOL res = DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY, &Query,
		sizeof(STORAGE_PROPERTY_QUERY), pDevDesc, pDevDesc->Size, &dwOutBytes,  (LPOVERLAPPED)NULL);

	if (!res)
	{
		CloseHandle(hDevice);
		return false;
	}

	if (pDevDesc->VendorIdOffset != 0)
		volDrive.strFriendlyVendor = CString( (PCHAR)((PBYTE)pDevDesc + pDevDesc->VendorIdOffset) );
	if (pDevDesc->ProductIdOffset != 0)
		volDrive.strFriendlyProduct = CString( (PCHAR)((PBYTE)pDevDesc + pDevDesc->ProductIdOffset) );

	STORAGE_DEVICE_NUMBER deviceNumber;

	res = DeviceIoControl(hDevice, IOCTL_STORAGE_GET_DEVICE_NUMBER,
		NULL, 0, &deviceNumber, sizeof(deviceNumber), &dwOutBytes, (LPOVERLAPPED)NULL);

	CloseHandle(hDevice);

	if (!res)
		return false;

	char szDosDeviceName[MAX_PATH];
	char szDevicePath[] = "X:\\";
	szDevicePath[0] = toupper(volDrive.chDrive);
	UINT DriveType = GetDriveTypeA(szDevicePath);
	szDevicePath[2] = 0;

	res = QueryDosDeviceA(szDevicePath, szDosDeviceName, MAX_PATH);

	volDrive.strDevicePath = CString(szDosDeviceName);
	volDrive.strDevice = GetDevicePathByDeviceNumber(deviceNumber.DeviceNumber, DriveType, szDosDeviceName);
	//wprintf(_T("dev number = %d, drive type = %d, dos driver = %S\nDEVICE=%s\n"), deviceNumber.DeviceNumber, DriveType, szDosDeviceName, strDevPath);

	return true;
}


bool RemovableEnumerate(CArray <stDriveVolume, stDriveVolume> &arrDrives)
{
//	TCHAR strLabel[MAX_PATH] = {0};
//	TCHAR strDrive[4] = {'?', ':', '\\'};
//	DWORD dwSerial;

	if ( !RemovableScanDisks( arrDrives ) )
		return false;

	for (int i=0; i<arrDrives.GetSize(); i++)
//	{
		RemovableFriendlyName( arrDrives[i] );
//		strDrive[0] = tolower(arrDrives[i].chDrive);
//		if ( GetVolumeInformation(strDrive, strLabel, sizeof(strLabel), &dwSerial, NULL, NULL, NULL, 0) )
//			arrDrives[i].strLabel = CString( strLabel );
//	}

	// only XP compatible, catches problematic devices without VID/PID
	RemovableFillInfo( arrDrives );

	return true;

	for (int i=0; i<arrDrives.GetSize(); i++)
	{
		CString strDebug;
		strDebug.Format(_T("drive=%c:\nvolume=%s\ndevice=%s\nvendor=%s\nproduct=%s\ndevpath=%s\nlabel=%s"),
			arrDrives[i].chDrive,
			arrDrives[i].strVolume,
			arrDrives[i].strDevice,
			arrDrives[i].strFriendlyVendor,
			arrDrives[i].strFriendlyProduct,
			arrDrives[i].strDevicePath,
			arrDrives[i].strLabel);
		MessageBox( NULL, strDebug, _T("debug info"), 0 );
	}

	return true;
}
#else

bool RemovableEnumerate(CArray <stDriveVolume, stDriveVolume> &arrDrives)
{
	return false;
}

//}

#endif

## usb.h
//#define DISABLE_USB
#include "_mfc.h"

struct stDriveVolume
{
	stDriveVolume()
	{
	}
	stDriveVolume( WCHAR _chDrive, CString _strVolume )
	{
		chDrive = _chDrive;
		strVolume = _strVolume;
	}
	const stDriveVolume& operator=(const stDriveVolume& child)
	{
		chDrive = child.chDrive;
		strVolume = child.strVolume;
		strDevice = child.strDevice;
		strDevicePath = child.strDevicePath;
		strFriendlyVendor = child.strFriendlyVendor;
		strFriendlyProduct = child.strFriendlyProduct;
		strLabel = child.strLabel;

		return *this;
	}

	WCHAR chDrive;
	CString strVolume;
	CString strDevice;
	CString strFriendlyVendor;
	CString strFriendlyProduct;
	CString strDevicePath;
	CString strLabel;
};


bool RemovableEnumerate(CArray <stDriveVolume, stDriveVolume> &arrDrives);
	#include "usb.h"

	#ifndef DISABLE_USB

	#pragma comment(lib, "setupapi.lib")

	#include "SetupAPI.h"
	#include "cfgmgr32.h"

	#pragma pack(4)

	DEFINE_GUID(GUID_DEVINTERFACE_VOLUME,
	00110 0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2, 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);


	bool RemovableScanDisks(CArray <stDriveVolume, stDriveVolume> &arrDrives)
	{
	WCHAR caDrive[4] = _T("A:\\");
	WCHAR volume[1024];
	DWORD dwDriveMask;

	// Get all drives in the system.
	dwDriveMask = GetLogicalDrives();

	if(dwDriveMask == 0)
	return false;

	// Loop for all drives (MAX_DRIVES = 26)
	for(; dwDriveMask; dwDriveMask >>= 1, caDrive[0]++)
	{
	// if a drive is present,
	if(dwDriveMask & 1)
	{
	// If a drive is removable
	if(GetDriveType(caDrive) == DRIVE_REMOVABLE)
	//Get its volume info and store it in the global variable.
	if(GetVolumeNameForVolumeMountPoint(caDrive, volume, 1024))
	arrDrives.Add( stDriveVolume( caDrive[0], volume ));
	}
	}
	return true;
	}

	bool RemovableFillInfo( CArray <stDriveVolume, stDriveVolume> &arrDrives )
	{
	HDEVINFO hDevInfo;
	GUID guid;
	BYTE buffer[1024];
	DWORD dwRequiredSize ;
	WCHAR buf[1024];
	DEVINST devInstParent;
	DWORD dwIndex;
	WCHAR volume[1024];
	int nLength;

	SP_DEVICE_INTERFACE_DATA devInterfaceData;
	SP_DEVINFO_DATA devInfoData;
	PSP_DEVICE_INTERFACE_DETAIL_DATA pDevDetail;

	// GUID_DEVINTERFACE_VOLUME is interface Guid for Volume class devices.
	guid = GUID_DEVINTERFACE_VOLUME;

	// Get device Information handle for Volume interface
	hDevInfo = SetupDiGetClassDevs(&guid, NULL, NULL,
	/DIGCF_ALLCLASSES \| /
	DIGCF_DEVICEINTERFACE \|
	DIGCF_PRESENT);

	if(hDevInfo == INVALID_HANDLE_VALUE)
	return false;

	SP_DEVINFO_DATA* pspDevInfoData =
	(SP_DEVINFO_DATA*)HeapAlloc(GetProcessHeap(), 0, sizeof(SP_DEVINFO_DATA));
	pspDevInfoData->cbSize = sizeof(SP_DEVINFO_DATA);
	/*
	for(int i=0; SetupDiEnumDeviceInfo(hDevInfo,i,pspDevInfoData); i++)
	{
	char buf[1024];
	DWORD nSize;
	if ( SetupDiGetDeviceInstanceIdA(hDevInfo, pspDevInfoData, buf, sizeof(buf), &nSize) )
	{
	DWORD DataT;
	if ( SetupDiGetDeviceRegistryPropertyA(hDevInfo, pspDevInfoData,
	SPDRP_FRIENDLYNAME, &DataT, (PBYTE)buf, sizeof(buf), &nSize) )
	{
	int f = 9;
	OutputDebugStringA( "friendlyname: " );
	OutputDebugStringA( buf );
	OutputDebugStringA( "\n" );
	}
	if ( SetupDiGetDeviceRegistryPropertyA(hDevInfo, pspDevInfoData,
	SPDRP_DEVICEDESC, &DataT, (PBYTE)buf, sizeof(buf), &nSize) )
	{
	OutputDebugStringA( "devicedesc: " );
	OutputDebugStringA( buf );
	OutputDebugStringA( "\n" );
	}
	}
	}
	*/

	// Loop until device interfaces are found.
	for(dwIndex = 0; ; dwIndex ++)
	{
	ZeroMemory(&devInterfaceData, sizeof(devInterfaceData));
	devInterfaceData.cbSize = sizeof(devInterfaceData);

	// Get device Interface data.
	if(!SetupDiEnumDeviceInterfaces(hDevInfo, NULL, &guid, dwIndex, &devInterfaceData))
	break;

	ZeroMemory(&devInfoData, sizeof(devInfoData));
	devInfoData.cbSize = sizeof(devInfoData);

	pDevDetail = (PSP_DEVICE_INTERFACE_DETAIL_DATA)buffer;
	pDevDetail->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);

	// Get device interface detail data to get
	// Device Instance from SP_DEVINFO_DATA and
	// Device Path from SP_DEVICE_INTERFACE_DETAIL_DATA
	SetupDiGetDeviceInterfaceDetail(hDevInfo,
	&devInterfaceData,
	pDevDetail, // SP_DEVICE_INTERFACE_DETAIL_DATA
	1024,
	&dwRequiredSize,
	&devInfoData); // SP_DEVINFO_DATA

	/*
	char buf[1024];
	DWORD nSize;
	if ( SetupDiGetDeviceInstanceIdA(hDevInfo, &devInfoData, buf, sizeof(buf), &nSize) )
	{
	OutputDebugStringA( buf );
	OutputDebugStringA( " " );
	DWORD DataT;
	if ( SetupDiGetDeviceRegistryPropertyA(hDevInfo, &devInfoData,
	SPDRP_FRIENDLYNAME, &DataT, (PBYTE)buf, sizeof(buf), &nSize) )
	{
	OutputDebugStringA( buf );
	OutputDebugStringA( " " );
	} else if ( SetupDiGetDeviceRegistryPropertyA(hDevInfo, &devInfoData,
	SPDRP_DEVICEDESC, &DataT, (PBYTE)buf, sizeof(buf), &nSize) )
	{
	OutputDebugStringA( buf );
	OutputDebugStringA( " " );
	}
	OutputDebugStringA( "\n" );
	}
	*/

	// Get the device instance of parent. This points to USBSTOR.
	CM_Get_Parent(&devInstParent,devInfoData.DevInst, 0);
	// Get the device instance of grand parent. This points to USB root.
	CM_Get_Parent(&devInstParent,devInstParent, 0);
	// Get the device ID of the USB root.
	CM_Get_Device_ID(devInstParent, buf, 1024, 0);

	// If USB root device matches with the input device ID, it is the target
	// device.
	if( buf != NULL /&& wcscmp(lpDevID,buf) == 0/ )
	{
	// Append \ to the DevicePath of SP_DEVICE_INTERFACE_DETAIL_DATA
	nLength = (int)wcslen(pDevDetail->DevicePath);
	pDevDetail->DevicePath[nLength] = '\\';
	pDevDetail->DevicePath[nLength+1] = 0;

	// Get Volume mount point for the device path.
	if(GetVolumeNameForVolumeMountPoint(pDevDetail->DevicePath, volume, 1024))
	{
	// Compare volume mount point with the one stored earlier.
	// If both match, return the corresponding drive letter.

	for(int nLoopIndex=0; nLoopIndex < arrDrives.GetSize(); nLoopIndex++)
	if ( arrDrives[nLoopIndex].strFriendlyProduct.IsEmpty() )
	if(wcscmp(arrDrives[nLoopIndex].strVolume, volume)==0)
	{
	CString strBuffer( buf );
	int nVid = strBuffer.Find(_T("VID_"));
	int nPid = strBuffer.Find(_T("PID_"));
	if ( nVid == -1 \|\| nPid == -1 )
	continue;

	int nVidE = strBuffer.Find(_T("&"), nVid);
	int nPidE = strBuffer.Find(_T("\\"), nPid);
	if ( nVidE == -1 \|\| nPidE == -1 )
	{
	continue;
	}
	arrDrives[nLoopIndex].strFriendlyProduct = strBuffer.Mid(nVid+4, nVidE-nVid-4);
	arrDrives[nLoopIndex].strFriendlyVendor = strBuffer.Mid(nPid+4, nPidE-nPid-4);
	arrDrives[nLoopIndex].strDevicePath = CString(pDevDetail->DevicePath);
	}
	}
	}
	}

	SetupDiDestroyDeviceInfoList(hDevInfo);
	return true;
	}

	static const GUID guidDISK =
	{
	0x53f56307, 0xb6bf, 0x11d0, { 0x94, 0xf2, 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b }
	};

	#include "fscommands.h"

	// http://www.codeproject.com/KB/system/RemoveDriveByLetter.aspx

	CString GetDevicePathByDeviceNumber(long DeviceNumber, UINT DriveType, char* szDosDeviceName)
	{
	bool IsFloppy = (strstr(szDosDeviceName, "\\Floppy") != NULL); // is there a better way?

	GUID* guid;

	switch (DriveType) {
	case DRIVE_REMOVABLE:
	if ( IsFloppy ) {
	guid = (GUID*)&GUID_DEVINTERFACE_FLOPPY;
	} else {
	guid = (GUID*)&GUID_DEVINTERFACE_DISK;
	}
	break;
	case DRIVE_FIXED:
	guid = (GUID*)&GUID_DEVINTERFACE_DISK;
	break;
	case DRIVE_CDROM:
	guid = (GUID*)&GUID_DEVINTERFACE_CDROM;
	break;
	default:
	return _T("");
	}

	// Get device interface info set handle
	// for all devices attached to system
	HDEVINFO hDevInfo = SetupDiGetClassDevs(guid, NULL, NULL,
	DIGCF_PRESENT \| DIGCF_DEVICEINTERFACE);

	if (hDevInfo == INVALID_HANDLE_VALUE) {
	return _T("");
	}

	// Retrieve a context structure for a device interface
	// of a device information set.
	DWORD dwIndex = 0;
	BOOL bRet = FALSE;

	BYTE Buf[1024];
	PSP_DEVICE_INTERFACE_DETAIL_DATA pspdidd =
	(PSP_DEVICE_INTERFACE_DETAIL_DATA)Buf;
	SP_DEVICE_INTERFACE_DATA spdid;
	SP_DEVINFO_DATA spdd;
	DWORD dwSize;

	spdid.cbSize = sizeof(spdid);

	while ( true ) {
	bRet = SetupDiEnumDeviceInterfaces(hDevInfo, NULL,
	guid, dwIndex, &spdid);
	if (!bRet) {
	break;
	}

	dwSize = 0;
	SetupDiGetDeviceInterfaceDetail(hDevInfo,
	&spdid, NULL, 0, &dwSize, NULL);

	if ( dwSize!=0 && dwSize<=sizeof(Buf) ) {
	pspdidd->cbSize = sizeof(*pspdidd); // 5 Bytes!

	ZeroMemory((PVOID)&spdd, sizeof(spdd));
	spdd.cbSize = sizeof(spdd);

	long res =
	SetupDiGetDeviceInterfaceDetail(hDevInfo, &

	spdid, pspdidd,
	dwSize, &dwSize,
	&spdd);
	if ( res ) {
	HANDLE hDrive = CreateFile(pspdidd->DevicePath,0,
	FILE_SHARE_READ \| FILE_SHARE_WRITE,
	NULL, OPEN_EXISTING, NULL, NULL);
	if ( hDrive != INVALID_HANDLE_VALUE ) {
	STORAGE_DEVICE_NUMBER sdn;
	DWORD dwBytesReturned = 0;
	res = DeviceIoControl(hDrive,
	IOCTL_STORAGE_GET_DEVICE_NUMBER,
	NULL, 0, &sdn, sizeof(sdn),
	&dwBytesReturned, NULL);
	if ( res ) {
	if ( DeviceNumber == (long)sdn.DeviceNumber ) {
	CloseHandle(hDrive);
	SetupDiDestroyDeviceInfoList(hDevInfo);
	return CString(pspdidd->DevicePath);
	}
	}
	CloseHandle(hDrive);
	}
	}
	}
	dwIndex++;
	}

	SetupDiDestroyDeviceInfoList(hDevInfo);

	return _T("");
	}


	bool RemovableFriendlyName( stDriveVolume &volDrive )
	{
	// "\\\\.\\X:"
	// "\\\\\?\\Volume{3dd04400-bdaa-11da-af8e-806d6172696f}"

	CString strDevice;
	strDevice.Format(_T("\\\\.\\%c:"), toupper(volDrive.chDrive));
	//strDevice = volDrive.strVolume.Left( volDrive.strVolume.GetLength()-1 );

	HANDLE hDevice = CreateFile(strDevice,
	GENERIC_READ \| GENERIC_WRITE,
	FILE_SHARE_READ \| FILE_SHARE_WRITE,
	NULL, OPEN_EXISTING, NULL, NULL);

	if ( hDevice == NULL \|\| hDevice == INVALID_HANDLE_VALUE )
	return false;

	DWORD dwOutBytes = 0;
	STORAGE_PROPERTY_QUERY Query;

	Query.PropertyId = StorageDeviceProperty;
	Query.QueryType = PropertyStandardQuery;

	char Buf[1024] = {0};
	PSTORAGE_DEVICE_DESCRIPTOR pDevDesc = (PSTORAGE_DEVICE_DESCRIPTOR)Buf;
	pDevDesc->Size = sizeof(Buf);

	BOOL res = DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY, &Query,
	sizeof(STORAGE_PROPERTY_QUERY), pDevDesc, pDevDesc->Size, &dwOutBytes, (LPOVERLAPPED)NULL);

	if (!res)
	{
	CloseHandle(hDevice);
	return false;
	}

	if (pDevDesc->VendorIdOffset != 0)
	volDrive.strFriendlyVendor = CString( (PCHAR)((PBYTE)pDevDesc + pDevDesc->VendorIdOffset) );
	if (pDevDesc->ProductIdOffset != 0)
	volDrive.strFriendlyProduct = CString( (PCHAR)((PBYTE)pDevDesc + pDevDesc->ProductIdOffset) );

	STORAGE_DEVICE_NUMBER deviceNumber;

	res = DeviceIoControl(hDevice, IOCTL_STORAGE_GET_DEVICE_NUMBER,
	NULL, 0, &deviceNumber, sizeof(deviceNumber), &dwOutBytes, (LPOVERLAPPED)NULL);

	CloseHandle(hDevice);

	if (!res)
	return false;

	char szDosDeviceName[MAX_PATH];
	char szDevicePath[] = "X:\\";
	szDevicePath[0] = toupper(volDrive.chDrive);
	UINT DriveType = GetDriveTypeA(szDevicePath);
	szDevicePath[2] = 0;

	res = QueryDosDeviceA(szDevicePath, szDosDeviceName, MAX_PATH);

	volDrive.strDevicePath = CString(szDosDeviceName);
	volDrive.strDevice = GetDevicePathByDeviceNumber(deviceNumber.DeviceNumber, DriveType, szDosDeviceName);
	//wprintf(_T("dev number = %d, drive type = %d, dos driver = %S\nDEVICE=%s\n"), deviceNumber.DeviceNumber, DriveType, szDosDeviceName, strDevPath);

	return true;
	}


	bool RemovableEnumerate(CArray <stDriveVolume, stDriveVolume> &arrDrives)
	{
	// TCHAR strLabel[MAX_PATH] = {0};
	// TCHAR strDrive[4] = {'?', ':', '\\'};
	// DWORD dwSerial;

	if ( !RemovableScanDisks( arrDrives ) )
	return false;

	for (int i=0; i<arrDrives.GetSize(); i++)
	// {
	RemovableFriendlyName( arrDrives[i] );
	// strDrive[0] = tolower(arrDrives[i].chDrive);
	// if ( GetVolumeInformation(strDrive, strLabel, sizeof(strLabel), &dwSerial, NULL, NULL, NULL, 0) )
	// arrDrives[i].strLabel = CString( strLabel );
	// }

	// only XP compatible, catches problematic devices without VID/PID
	RemovableFillInfo( arrDrives );

	return true;

	for (int i=0; i<arrDrives.GetSize(); i++)
	{
	CString strDebug;
	strDebug.Format(_T("drive=%c:\nvolume=%s\ndevice=%s\nvendor=%s\nproduct=%s\ndevpath=%s\nlabel=%s"),
	arrDrives[i].chDrive,
	arrDrives[i].strVolume,
	arrDrives[i].strDevice,
	arrDrives[i].strFriendlyVendor,
	arrDrives[i].strFriendlyProduct,
	arrDrives[i].strDevicePath,
	arrDrives[i].strLabel);
	MessageBox( NULL, strDebug, _T("debug info"), 0 );
	}

	return true;
	}
	#else

	bool RemovableEnumerate(CArray <stDriveVolume, stDriveVolume> &arrDrives)
	{
	return false;
	}

	//}

	#endif
	//#define DISABLE_USB
	#include "_mfc.h"

	struct stDriveVolume
	{
	stDriveVolume()
	{
	}
	stDriveVolume( WCHAR _chDrive, CString _strVolume )
	{
	chDrive = _chDrive;
	strVolume = _strVolume;
	}
	const stDriveVolume& operator=(const stDriveVolume& child)
	{
	chDrive = child.chDrive;
	strVolume = child.strVolume;
	strDevice = child.strDevice;
	strDevicePath = child.strDevicePath;
	strFriendlyVendor = child.strFriendlyVendor;
	strFriendlyProduct = child.strFriendlyProduct;
	strLabel = child.strLabel;

	return *this;
	}

	WCHAR chDrive;
	CString strVolume;
	CString strDevice;
	CString strFriendlyVendor;
	CString strFriendlyProduct;
	CString strDevicePath;
	CString strLabel;
	};


	bool RemovableEnumerate(CArray <stDriveVolume, stDriveVolume> &arrDrives);