StreamedFileDataRequest StreamedFileDataRequest StreamedFileDataRequest StreamedFileDataRequest StreamedFileDataRequest Class


Represents a sequential-access output stream that indicates a request for the data stream of a StorageFile that was created by calling CreateStreamedFileAsync or ReplaceWithStreamedFileAsync.

public : sealed class StreamedFileDataRequest : IClosable, IStreamedFileDataRequest, IOutputStream
struct winrt::Windows::Storage::StreamedFileDataRequest : IClosable, IStreamedFileDataRequest, IOutputStream
public sealed class StreamedFileDataRequest : IDisposable, IStreamedFileDataRequest, IOutputStream
Public NotInheritable Class StreamedFileDataRequest Implements IDisposable, IStreamedFileDataRequest, IOutputStream
// This class does not provide a public constructor.
Windows 10 requirements
Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)


This object is passed to the app's StreamedFileDataRequestedHandler function when a stream that is represented by a StorageFile is accessed. Define the StreamedFileDataRequestedHandler function if you use CreateStreamedFileAsync or ReplaceWithStreamedFileAsync to get a StorageFile that represents the stream.


Close() Close() Close() Close() Close()

Releases system resources that are exposed by the current stream indicating that the data request is complete.

Dispose() Dispose() Dispose() Dispose() Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

FailAndClose(StreamedFileFailureMode) FailAndClose(StreamedFileFailureMode) FailAndClose(StreamedFileFailureMode) FailAndClose(StreamedFileFailureMode) FailAndClose(StreamedFileFailureMode)

Indicates that the data can't be streamed and releases system resources that are exposed by the current stream indicating that the data request is complete.

FlushAsync() FlushAsync() FlushAsync() FlushAsync() FlushAsync()

Flushes the data in the current stream.

WriteAsync(IBuffer) WriteAsync(IBuffer) WriteAsync(IBuffer) WriteAsync(IBuffer) WriteAsync(IBuffer)

Writes data from a buffer to the current stream.