UnmanagedMemoryStream Class
This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Provides access to unmanaged blocks of memory from managed code.
Assembly: mscorlib (in mscorlib.dll)
The UnmanagedMemoryStream type exposes the following members.
| Name | Description | |
|---|---|---|
 | CanRead | Infrastructure. Gets a value indicating whether a stream supports reading. (Overrides Stream::CanRead.) |
| CanSeek | Infrastructure. Gets a value indicating whether a stream supports seeking. (Overrides Stream::CanSeek.) |
| CanTimeout | Gets a value that determines whether the current stream can time out. (Inherited from Stream.) |
| CanWrite | Infrastructure. Gets a value indicating whether a stream supports writing. (Overrides Stream::CanWrite.) |
| Capacity | Infrastructure. Gets the stream length (size) or the total amount of memory assigned to a stream (capacity). |
| Length | Infrastructure. Gets the length of the data in a stream. (Overrides Stream::Length.) |
| Position | Infrastructure. Gets or sets the current position in a stream. (Overrides Stream::Position.) |
| PositionPointer | Infrastructure. Gets or sets a byte pointer to a stream based on the current position in the stream. |
| ReadTimeout | Gets or sets a value, in miliseconds, that determines how long the stream will attempt to read before timing out. (Inherited from Stream.) |
| WriteTimeout | Gets or sets a value, in miliseconds, that determines how long the stream will attempt to write before timing out. (Inherited from Stream.) |
| Name | Description | |
|---|---|---|
 | BeginRead | Begins an asynchronous read operation. (Inherited from Stream.) |
| BeginWrite | Begins an asynchronous write operation. (Inherited from Stream.) |
| Close | Closes the current stream and releases any resources (such as sockets and file handles) associated with the current stream. (Inherited from Stream.) |
| CopyTo(Stream) | Reads all the bytes from the current stream and writes them to the destination stream. (Inherited from Stream.) |
| CopyTo(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.) |
| CopyToAsync(Stream) | Asynchronously reads the bytes from the current stream and writes them to another stream. (Inherited from Stream.) |
| CopyToAsync(Stream, Int32) | Asynchronously reads the bytes from the current stream and writes them to another stream, using a specified buffer size. (Inherited from Stream.) |
| CopyToAsync(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.) |
| Dispose() | Releases all resources used by the Stream. (Inherited from Stream.) |
 | Dispose(Boolean) | Infrastructure. Releases the unmanaged resources used by the UnmanagedMemoryStream and optionally releases the managed resources. (Overrides Stream::Dispose(Boolean).) |
| EndRead | Waits for the pending asynchronous read to complete. (Inherited from Stream.) |
| EndWrite | Ends an asynchronous write operation. (Inherited from Stream.) |
| Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| Flush | Infrastructure. Overrides the Flush method so that no action is performed. (Overrides Stream::Flush().) |
| FlushAsync() | Asynchronously clears all buffers for this stream and causes any buffered data to be written to the underlying device. (Inherited from Stream.) |
| FlushAsync(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.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| Read | Infrastructure. Reads the specified number of bytes into the specified array. (Overrides Stream::Read(array<Byte>, Int32, Int32).) |
| ReadAsync(array<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.) |
| ReadAsync(array<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.) |
| ReadByte | Infrastructure. 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().) |
| Seek | Infrastructure. Sets the current position of the current stream to the given value. (Overrides Stream::Seek(Int64, SeekOrigin).) |
| SetLength | Infrastructure. Sets the length of a stream to a specified value. (Overrides Stream::SetLength(Int64).) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Write | Infrastructure. Writes a block of bytes to the current stream using data from a buffer. (Overrides Stream::Write(array<Byte>, Int32, Int32).) |
| WriteAsync(array<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.) |
| WriteAsync(array<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.) |
| WriteByte | Infrastructure. Writes a byte to the current position in the file stream. (Overrides Stream::WriteByte(Byte).) |
| Name | Description | |
|---|---|---|
 | AsInputStream | (Defined by WindowsRuntimeStreamExtensions.) |
| AsOutputStream | (Defined by WindowsRuntimeStreamExtensions.) |
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