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DataProviderRequest Class

Definition

Important

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An object of this type is passed to the DataProviderHandler delegate.

public ref class DataProviderRequest sealed
/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
class DataProviderRequest final
[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
public sealed class DataProviderRequest
Public NotInheritable Class DataProviderRequest
Inheritance
Object Platform::Object IInspectable DataProviderRequest
Attributes

Windows requirements

Requirements Description
Device family
Windows 10 (introduced in 10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced in v1.0)

Examples

async void OnDeferredImageRequestedHandler(DataProviderRequest request)
{
 // Provide updated bitmap data using delayed rendering.
 if (this.imageStream != null)
 {
 DataProviderDeferral deferral = request.GetDeferral();
 InMemoryRandomAccessStream inMemoryStream = new InMemoryRandomAccessStream();

 // Decode the image.
 BitmapDecoder imageDecoder = await BitmapDecoder.CreateAsync(this.imageStream);

 // Re-encode the image at 50% width and height.
 BitmapEncoder imageEncoder = await BitmapEncoder.CreateForTranscodingAsync(inMemoryStream, imageDecoder);
 imageEncoder.BitmapTransform.ScaledWidth = (uint)(imageDecoder.OrientedPixelHeight * 0.5);
 imageEncoder.BitmapTransform.ScaledHeight = (uint)(imageDecoder.OrientedPixelHeight * 0.5);
 await imageEncoder.FlushAsync();

 request.SetData(RandomAccessStreamReference.CreateFromStream(inMemoryStream));
 deferral.Complete();
 }
}

Remarks

Use this object when you need to delay, or defer, a share for a few milliseconds. To learn more, check out How to delay sharing.

Properties

Name Description
Deadline

Gets the deadline for finishing a delayed rendering operation. If execution goes beyond that deadline, the results of delayed rendering are ignored.
FormatId

Specifies the format id.

Methods

Name Description
GetDeferral()

Returns a DataProviderDeferral object.
SetData(Object)

Sets the content of the DataPackage to be shared with a target app.

Applies to

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