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MemoryMappedFileRights Enumeration
Visual Studio 2010
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.MemoryMappedFilesAssembly: System.Core (in System.Core.dll)
| Member name | Description | |
|---|---|---|
| CopyOnWrite | The right to read and write to a file with the restriction that write operations will not be seen by other processes. | |
| Write | The right to add data to a file or remove data from a file. | |
| Read | The right to open and copy a file as read-only. | |
| Execute | The right to run an application file. | |
| Delete | The right to delete a file. | |
| ReadPermissions | The 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. | |
| ChangePermissions | The right to change the security and audit rules associated with a file. | |
| TakeOwnership | The right to change the owner of a file. | |
| ReadWrite | The right to open and copy a file, and the right to add data to a file or remove data from a file. | |
| ReadExecute | The 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. | |
| ReadWriteExecute | The 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. | |
| FullControl | The 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. | |
| AccessSystemSecurity | The 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.
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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