MemoryStream Constructor (
Byte , Int32, Int32)
Initializes a new non-resizable instance of the
class based on the specified region (index) of a byte array. MemoryStream
Parameters buffer Type: System .Byte 
The array of unsigned bytes from which to create this stream.
index Type: System .Int32
The index into
buffer at which the stream begins. count Type: System .Int32
The length of the stream in bytes.
, CanRead , and CanSeek properties are all set to CanWrite , but the capacity cannot be changed. true is set to Capacity count.
The length of the stream cannot be set to a value greater than the initial length of the specified byte array; however, the stream can be truncated (see
This constructor does not expose the underlying stream.
throws GetBuffer . However, you can write to the stream. UnauthorizedAccessException .NET Framework
Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0
.NET Framework Client Profile
Supported in: 4, 3.5 SP1
Portable Class Library
Supported in: Portable Class Library
.NET for Windows Store apps
Supported in: Windows 8
Windows 8.1, Windows Server 2012 R2, 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.
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