ret = GetNamedSecurityInfo(_Path, SE_OBJECT_TYPE.SE_FILE_OBJECT, SECURITY_INFORMATION.DACL_SECURITY_INFORMATION, Nothing, Nothing, pDACL, Nothing, pSD)

    SE_OBJECT_TYPE ObjectType,

    ByVal ObjectType As SE_OBJECT_TYPE, _

SE_OBJECT_TYPE, SECURITY_INFORMATION

SE_OBJECT_TYPE ObjectType,

        ByRef ObjectType As SE_OBJECT_TYPE, _

        SE_OBJECT_TYPE         objectType,

    enum SE_OBJECT_TYPE

        returnValue = GetSecurityInfo(fileStream.Handle, SE_OBJECT_TYPE.SE_FILE_OBJECT, SECURITY_INFORMATION.OWNER_SECURITY_INFORMATION | SECURITY_INFORMATION.DACL_SECURITY_INFORMATION, out ownerSid, out groupSid, out dacl, out sacl, out securityDescriptor);          

    SE_OBJECT_TYPE ObjectType,

    ByVal ObjectType As SE_OBJECT_TYPE, _

SE_OBJECT_TYPE, SECURITY_INFORMATION

private static extern uint SetNamedSecurityInfoW(String pObjectName, SE_OBJECT_TYPE ObjectType, SECURITY_INFORMATION SecurityInfo, IntPtr psidOwner, IntPtr psidGroup, IntPtr pDacl, IntPtr pSacl);

private enum SE_OBJECT_TYPE

        SetNamedSecurityInfoW(UnicodeHeader+objectName, SE_OBJECT_TYPE.SE_FILE_OBJECT, sFlags,sidPtr , IntPtr.Zero, IntPtr.Zero, IntPtr.Zero);

     SE_OBJECT_TYPE.SE_FILE_OBJECT, _

static extern uint TreeSetNamedSecurityInfo(string pObjectName, SE_OBJECT_TYPE ObjectType, SecurityInformation SecurityInfo,

    protected enum SE_OBJECT_TYPE

    uint errorReturn = TreeSetNamedSecurityInfo(path, SE_OBJECT_TYPE.SE_FILE_OBJECT, si, pSidOwner, pSidGroup, pDacl, pSacl, TREE_SEC_INFO_SET, callback, PROGRESS_INVOKE_SETTING.ProgressInvokePrePostError, pArgs);

enum SE_OBJECT_TYPE

    Public Enum SE_OBJECT_TYPE