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MemoryMappedFileRights Enumeration

Specifies access rights to a memory-mapped file that is not associated with a file on disk.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

Namespace:  System.IO.MemoryMappedFiles
Assembly:  System.Core (in System.Core.dll)

[FlagsAttribute]
public enum MemoryMappedFileRights

Member nameDescription
CopyOnWriteThe right to read and write to a file with the restriction that write operations will not be seen by other processes.
WriteThe right to add data to a file or remove data from a file.
ReadThe right to open and copy a file as read-only.
ExecuteThe right to run an application file.
DeleteThe right to delete a file.
ReadPermissionsThe right to open and copy access and audit rules from a file. This does not include the right to read data, file system attributes, or extended file system attributes.
ChangePermissionsThe right to change the security and audit rules associated with a file.
TakeOwnershipThe right to change the owner of a file.
ReadWriteThe right to open and copy a file, and the right to add data to a file or remove data from a file.
ReadExecuteThe right to open and copy a folder or file as read-only, and to run application files. This right includes the Read right and the Execute right.
ReadWriteExecuteThe right to open and copy a file, the right to add data to a file or remove data from a file, and the right to run an application file.
FullControlThe right to exert full control over a file, and to modify access control and audit rules. This value represents the right to do anything with a file and is the combination of all rights in this enumeration.
AccessSystemSecurityThe right to get or set permissions on a file.

You can specify access rights when you use the MemoryMappedFile.OpenExisting method to open an existing memory-mapped file.

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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