WriteAsync method
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IOutputStream.WriteAsync method

Writes data asynchronously in a sequential stream.

Syntax


IAsyncOperationWithProgress<UInt32, UInt32> WriteAsync(
  IBuffer buffer
)

Parameters

buffer

Type: IBuffer

A buffer that contains the data to be written.

Return value

Type: IAsyncOperationWithProgress<UInt32, UInt32>

The byte writer operation.

Remarks

Some stream implementations support queuing of write operations. In this case, the asynchronous execution of the WriteAsync method does not complete until the FlushAsync method has completed.

Requirements (Windows 10 device family)

Device family

Universal, introduced version 10.0.10240.0

API contract

Windows.Foundation.UniversalApiContract, introduced version 1.0

Namespace

Windows.Storage.Streams
Windows::Storage::Streams [C++]

Metadata

Windows.Foundation.UniversalApiContract.winmd

Requirements (Windows 8.x and Windows Phone 8.x)

Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Minimum supported phone

Windows Phone 8

Namespace

Windows.Storage.Streams
Windows::Storage::Streams [C++]

Metadata

Windows.winmd

See also

IOutputStream

 

 

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