BarcodeScannerFrameReader.TryAcquireLatestFrameAsync Method
Definition
Important
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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
A BarcodeScannerVideoFrame containing data for the latest video frame.
- Attributes
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.