How to use GUID_IO_VOLUME_MOUNT to monitor mount points

From:

=?Utf-8?B?QXh0ZXI=?= <Axter@discussions.microsoft.com>

Newsgroups:

microsoft.public.vc.language

Date:

Sat, 13 Jan 2007 09:31:00 -0800

Message-ID:

<6639C50E-37BC-4EA1-AA84-0A4654C81435@microsoft.com>

How can I use GUID_IO_VOLUME_MOUNT to detect when a mount point is created?

Is there any example code?
I've tried the following code, but I get error 1066 when calling
RegisterDeviceNotification.

BOOL RegisterDevBroadcastHandle(const std::string& VolumeName) //VolumeName
in following format \\.\C:
{
    SERVICE_STATUS_HANDLE &theServiceStatusHandle = serviceStatusHandle;
    HANDLE dbch_handle = CreateFileA(VolumeName.c_str(),
        GENERIC_READ,
        FILE_SHARE_READ | FILE_SHARE_WRITE,
        NULL,
        OPEN_EXISTING,
        FILE_FLAG_NO_BUFFERING | FILE_ATTRIBUTE_NORMAL | FILE_FLAG_SEQUENTIAL_SCAN,
        NULL);
    if (dbch_handle == INVALID_HANDLE_VALUE)
    {
        LogEvent("CreateFileA(%s) failed (hndl): %lu.", VolumeName.c_str(),
GetLastError());
        return FALSE;
    }
    DEV_BROADCAST_HANDLE NotificationFilter;
    ZeroMemory( &NotificationFilter, sizeof(NotificationFilter) );
    NotificationFilter.dbch_size = sizeof(NotificationFilter);
    NotificationFilter.dbch_devicetype = DBT_DEVTYP_HANDLE;
    NotificationFilter.dbch_eventguid = GUID_IO_VOLUME_MOUNT;
    NotificationFilter.dbch_handle = dbch_handle;

    //The following line produces error 1066
    HDEVNOTIFY hDevNotify = RegisterDeviceNotification( theServiceStatusHandle,
&NotificationFilter, DEVICE_NOTIFY_SERVICE_HANDLE |
DEVICE_NOTIFY_ALL_INTERFACE_CLASSES);

    if(!hDevNotify)
    {
        CloseHandle(dbch_handle);
        LogEvent("RegisterDeviceNotification failed (hndl): %lu; (%s), %i",
GetLastError(), VolumeName.c_str(), (glbl_currentServiceRunningState ==
SERVICE_RUNNING));
        return FALSE;
    }

    OpenVolumes[VolumeName] = dbch_handle;
    ArrayOfHdevnotify.push_back(hDevNotify);
    return TRUE;
}

Does anyone know how to get this to work?
--
-----------------------------------------------
Top Ten Expert in Experts-Exchange C++ and MFC topic area.
http://www.experts-exchange.com/Cplusplus
------------------------------------------------