public int RandomReadOperations;

        public int RandomWriteOperations;

const int _O_RANDOM      = 0x0010;  /* file access is primarily random */

const int O_RANDOM      =  _O_RANDOM;

    public static PropertyKey PKEY_DrvPkg_BrandingIcon = new PropertyKey(0xcf73bb51, 0x3abf, 0x44a2, 0x85, 0xe0, 0x9a, 0x3d, 0xc7, 0xa1, 0x21, 0x32, 7);     // DEVPROP_TYPE_STRING_LIST

    public static PropertyKey WPD_RESOURCE_BRANDING_ART = new PropertyKey(0xB633B1AE, 0x6CAF, 0x4A87, 0x95, 0x89, 0x22, 0xDE, 0xD6, 0xDD, 0x58, 0x99, 0);

UInt32 STATUS_FLOAT_DENORMAL_OPERAND     = (UInt32)0xC000008DL;

private const uint FILE_FLAG_RANDOM_ACCESS       = 0x10000000;

        /// This object is not allowed to change its grandparent container. Moves are not forbidden on this object, but are restricted to sibling containers.

        public const int ERROR_DS_MODIFYDN_WRONG_GRANDPARENT = 8582;

'Prima mi creo da un vettore di caratteri una area di memoria non gestita con la stringa "Ciao" quindi la copio in un altra area non gestita con MemCpy, e quindi la ritrasformo in un vettore di caratteri, che posso quindi convertire in una stringa !!! Provato e testato. Funziona. Salute a tutti. Andrea Casagrande.

    rand() As Integer

Random.Next()

    srand(ByVal seed As Integer)

New Random(Seed As Integer)

    SystemProcessorBrandString = 0x0069,

    SystemLogicalProcessorAndGroupInformation = 0x006B,

    public void ClearAndSetEvent(IntPtr hEventOverlapped)

  deviceIoOverlapped.ClearAndSetEvent(hEvent.SafeWaitHandle.DangerousGetHandle());

    Dim expected As String = fFoldername + "\" + Left(fPrefix, 3)  'Only part of the expected answer. The other part is random.

Arguably one of the most frequently used and most important PInvokes used, this is the only way in .NET to get a high performance counter for measurement, unique seeding of Random Variables (although you could perhaps transfer a GUID to a numeric equivalent), and in general what this global consultant would consider a 'must include' in almost any application where Instrumentation is a must.

    RandomAccess = 0x10000000,

    public ushort          wRandomMinutesInterval;

    [MarshalAs(UnmanagedType.U2)] public ushort        wRandomMinutesInterval;

-- Jérémie Bertrand

CoCreateGuid generates random-looking GUIDs like these:

CoCreateGuid generates random-looking GUIDs like these:

        Random myRandom = new Random();

        MoveWindow(id, myRandom.Next(1024), myRandom.Next(768), Rect.right - Rect.left, Rect.bottom - Rect.top, true);

public static string GetActiveServerAndShare(string[] arguments)

        public int RandomReadOperations;

        public int RandomWriteOperations;

                         "GrandPrivilege failed. SecurityEntity: {0}",

    Boolean ClearAndSavelog (string logName, string savePath)

static extern bool CryptGenRandom(IntPtr hProv, uint dwLen, byte[] pbBuffer);

Declare Function CryptGenRandom Lib "advapi32.dll" (ByVal hProv As IntPtr, ByVal dwLen As Integer, ByVal pbBuffer As Byte()) As Boolean

byte[] newRandom = new byte[10];

if (!CryptGenRandom(hProv, (uint)(newRandom.Length), newRandom))

    FloatDenormalOperand = 0xc000008d,

        RASEO_UseCountrAndAreaCodes = 0x00000001,

public static extern int SHOpenFolderAndSelectItems(IntPtr pidlFolder, uint cidl, [In, MarshalAs(UnmanagedType.LPArray)] IntPtr[] apidl, uint dwFlags);

  Public Shared Function SHOpenFolderAndSelectItems(ByVal pidlFolder As IntPtr, ByVal cidl As UInteger, <MarshalAs(UnmanagedType.LPArray)> ByVal apidl() As IntPtr, ByVal dwFlags As UInteger) As Integer

    public static extern int SHOpenFolderAndSelectItems(IntPtr pidlFolder, uint cidl, [In, MarshalAs(UnmanagedType.LPArray)] IntPtr[] apidl, uint dwFlags);

    public static void OpenFolderAndSelectItem(string folderPath, string file)

        SHOpenFolderAndSelectItems(nativeFolder, (uint)fileArray.Length, fileArray, 0);

    SafeNativeMethods.SHOpenFolderAndSelectItems(pidlFolder, pidl.Length, pidl, 0)

    Public Shared Function SHOpenFolderAndSelectItems(ByVal pidlFolder As IntPtr, ByVal cidl As UInteger, <MarshalAs(UnmanagedType.LPArray)> ByVal apidl() As IntPtr, ByVal dwFlags As UInteger) As Integer

        IpSuffixOriginRandom,