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MemoryMappedFile.CreateViewStream Method

.NET Framework 4.5

Other Versions

.NET Framework 4

Creates a stream that maps to a view of the memory-mapped file.

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

Syntax

C++

public MemoryMappedViewStream CreateViewStream()

Return Value

Type: System.IO.MemoryMappedFiles.MemoryMappedViewStream
A stream of memory.

Exceptions

Exception	Condition
UnauthorizedAccessException	Access to the memory-mapped file is unauthorized.

Remarks

You can use the stream returned by this method for sequential access to a memory-mapped file, such as for inter-process communications.

Examples

The following example creates a stream and writes a value to it. This code example is part of a larger example provided for the CreateNew method.

using (MemoryMappedViewStream stream = mmf.CreateViewStream())
{
    BinaryWriter writer = new BinaryWriter(stream);
    writer.Write(1);
}

Version Information

.NET Framework

Supported in: 4.5, 4

.NET Framework Client Profile

Supported in: 4

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

Reference

MemoryMappedFile Class

CreateViewStream Overload

System.IO.MemoryMappedFiles Namespace

Other Resources

Memory-Mapped Files

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