How to use GUID_IO_VOLUME_MOUNT to monitor mount points
in [Visual C]
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From: Axter on 13 Jan 2007 12:31 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 ------------------------------------------------ |