UnmanagedMemoryStream::WriteAsync Method (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.

Available starting in .NET Framework 4.6

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

Syntax

C++

public:
[ComVisibleAttribute(false)]
[HostProtectionAttribute(SecurityAction::LinkDemand, ExternalThreading = true)]
virtual Task^ WriteAsync(
	array<unsigned char>^ buffer,
	int offset,
	int count,
	CancellationToken cancellationToken
) override

Parameters

buffer: Type: array<System::Byte>^
The buffer to write data from.

offset: Type: System::Int32
The zero-based byte offset in buffer from which to begin copying bytes to the stream.

count: Type: System::Int32
The maximum number of bytes to write.

cancellationToken: Type: System.Threading::CancellationToken
The token to monitor for cancellation requests. The default value is None.

Return Value

Type: System.Threading.Tasks::Task^

A task that represents the asynchronous write operation.

Remarks

If an exception occurs during the write operation, it will be set as the Task::Exception of the property of the returned task.

Version Information

Universal Windows Platform
Available since 10
.NET Framework
Available since 4.5.2