BarcodeScannerFrameReader.TryAcquireLatestFrameAsync Method

Reference

Definition

Namespace:: Windows.Devices.PointOfService.Provider

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Edit

Acquires the latest available frame from the camera.

public:
 virtual IAsyncOperation<BarcodeScannerVideoFrame ^> ^ TryAcquireLatestFrameAsync() = TryAcquireLatestFrameAsync;

/// [Windows.Foundation.Metadata.RemoteAsync]
IAsyncOperation<BarcodeScannerVideoFrame> TryAcquireLatestFrameAsync();

[Windows.Foundation.Metadata.RemoteAsync]
public IAsyncOperation<BarcodeScannerVideoFrame> TryAcquireLatestFrameAsync();

function tryAcquireLatestFrameAsync()

Public Function TryAcquireLatestFrameAsync () As IAsyncOperation(Of BarcodeScannerVideoFrame)

Returns

IAsyncOperation<BarcodeScannerVideoFrame>

A BarcodeScannerVideoFrame containing data for the latest video frame.

Attributes: RemoteAsyncAttribute

Remarks

Only the first call to TryAcquireLatestFrameAsync will return data. Subsequent calls will return null until a new frame arrives. Subscribe to the FrameArrived event to be notified when new frames arrive.

Applies to

Share via