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UnmanagedMemoryStream Class

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Provides access to unmanaged blocks of memory from managed code.

System.Object
  System.IO.Stream
    System.IO.UnmanagedMemoryStream

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

public class UnmanagedMemoryStream : Stream

The UnmanagedMemoryStream type exposes the following members.

  NameDescription
Public propertyCanReadInfrastructure. Gets a value indicating whether a stream supports reading. (Overrides Stream.CanRead.)
Public propertyCanSeekInfrastructure. Gets a value indicating whether a stream supports seeking. (Overrides Stream.CanSeek.)
Public propertyCanTimeoutGets a value that determines whether the current stream can time out. (Inherited from Stream.)
Public propertyCanWriteInfrastructure. Gets a value indicating whether a stream supports writing. (Overrides Stream.CanWrite.)
Public propertyCapacityInfrastructure. Gets the stream length (size) or the total amount of memory assigned to a stream (capacity).
Public propertyLengthInfrastructure. Gets the length of the data in a stream. (Overrides Stream.Length.)
Public propertyPositionInfrastructure. Gets or sets the current position in a stream. (Overrides Stream.Position.)
Public propertyPositionPointerInfrastructure. Gets or sets a byte pointer to a stream based on the current position in the stream.
Public propertyReadTimeoutGets or sets a value, in miliseconds, that determines how long the stream will attempt to read before timing out. (Inherited from Stream.)
Public propertyWriteTimeoutGets or sets a value, in miliseconds, that determines how long the stream will attempt to write before timing out. (Inherited from Stream.)
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  NameDescription
Public methodBeginReadBegins an asynchronous read operation. (Inherited from Stream.)
Public methodBeginWriteBegins an asynchronous write operation. (Inherited from Stream.)
Public methodCloseCloses the current stream and releases any resources (such as sockets and file handles) associated with the current stream. (Inherited from Stream.)
Public methodCopyTo(Stream)Reads all the bytes from the current stream and writes them to the destination stream. (Inherited from Stream.)
Public methodCopyTo(Stream, Int32)Reads all the bytes from the current stream and writes them to a destination stream, using a specified buffer size. (Inherited from Stream.)
Public methodCopyToAsync(Stream)Asynchronously reads the bytes from the current stream and writes them to another stream. (Inherited from Stream.)
Public methodCopyToAsync(Stream, Int32)Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified buffer size. (Inherited from Stream.)
Public methodCopyToAsync(Stream, Int32, CancellationToken)Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified buffer size and cancellation token. (Inherited from Stream.)
Public methodDispose()Releases all resources used by the Stream. (Inherited from Stream.)
Protected methodDispose(Boolean)Infrastructure. Releases the unmanaged resources used by the UnmanagedMemoryStream and optionally releases the managed resources. (Overrides Stream.Dispose(Boolean).)
Public methodEndReadWaits for the pending asynchronous read to complete. (Inherited from Stream.)
Public methodEndWriteEnds an asynchronous write operation. (Inherited from Stream.)
Public methodEquals(Object)Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodFlushInfrastructure. Overrides the Flush method so that no action is performed. (Overrides Stream.Flush().)
Public methodFlushAsync()Asynchronously clears all buffers for this stream and causes any buffered data to be written to the underlying device. (Inherited from Stream.)
Public methodFlushAsync(CancellationToken)Asynchronously clears all buffers for this stream, causes any buffered data to be written to the underlying device, and monitors cancellation requests. (Inherited from Stream.)
Public methodGetHashCodeServes as a hash function for a particular type. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodReadInfrastructure. Reads the specified number of bytes into the specified array. (Overrides Stream.Read(Byte[], Int32, Int32).)
Public methodReadAsync(Byte[], Int32, Int32)Asynchronously reads a sequence of bytes from the current stream and advances the position within the stream by the number of bytes read. (Inherited from Stream.)
Public methodReadAsync(Byte[], Int32, Int32, CancellationToken)Asynchronously reads a sequence of bytes from the current stream, advances the position within the stream by the number of bytes read, and monitors cancellation requests. (Inherited from Stream.)
Public methodReadByteInfrastructure. Reads a byte from a stream and advances the position within the stream by one byte, or returns -1 if at the end of the stream. (Overrides Stream.ReadByte().)
Public methodSeekInfrastructure. Sets the current position of the current stream to the given value. (Overrides Stream.Seek(Int64, SeekOrigin).)
Public methodSetLengthInfrastructure. Sets the length of a stream to a specified value. (Overrides Stream.SetLength(Int64).)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
Public methodWriteInfrastructure. Writes a block of bytes to the current stream using data from a buffer. (Overrides Stream.Write(Byte[], Int32, Int32).)
Public methodWriteAsync(Byte[], Int32, Int32)Asynchronously writes a sequence of bytes to the current stream and advances the current position within this stream by the number of bytes written. (Inherited from Stream.)
Public methodWriteAsync(Byte[], Int32, Int32, CancellationToken)Asynchronously writes a sequence of bytes to the current stream, advances the current position within this stream by the number of bytes written, and monitors cancellation requests. (Inherited from Stream.)
Public methodWriteByteInfrastructure. Writes a byte to the current position in the file stream. (Overrides Stream.WriteByte(Byte).)
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This class supports access to unmanaged memory using the existing stream-based model and does not require that the contents in the unmanaged memory be copied to the heap.

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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