MemoryStream Constructor (Byte(), Int32, Int32, Boolean, Boolean)

July 28, 2014

Initializes a new instance of the MemoryStream class based on the specified region of a byte array, with the CanWrite property set as specified, and the ability to call GetBuffer set as specified.

Namespace:  System.IO
Assembly:  mscorlib (in mscorlib.dll)

'Declaration
Public Sub New ( _
	buffer As Byte(), _
	index As Integer, _
	count As Integer, _
	writable As Boolean, _
	publiclyVisible As Boolean _
)

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.
writable
Type: System.Boolean
The setting of the CanWrite property, which determines whether the stream supports writing.
publiclyVisible
Type: System.Boolean
true to enable GetBuffer, which returns the unsigned byte array from which the stream was created; otherwise, false.

ExceptionCondition
ArgumentNullException

buffer is Nothing.

ArgumentOutOfRangeException

index or count is negative.

ArgumentException

The buffer length minus index is less than count.

The CanRead and CanSeek properties are both set to true. Capacity is set to count.

The new stream instance can be written to, but the Capacity of the underlying byte array cannot be changed. 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 SetLength).

Version Notes

Windows Phone

 System.ArgumentNullException is thrown when trying to retrieve a MemoryStream object with a size of zero bytes from a resource file. On Windows, no exception is thrown when the length is equal to zero.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

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