readScanData method
Reads the next chunk of available image data from an active job handle. A response indicating the outcome will be sent to the callback.
It is valid for a response to have result
OperationResult.SUCCESS with a zero-length
data member. This means the scanner is still working but
does not yet have additional data ready. The caller should wait a short
time and try again.
When the scan job completes, the response will have the result
OperationResult.EOF. This response may contain a final
non-zero data member.
|job| : Active job handle previously returned from
startScan.
|callback| : Called with the result.
Implementation
Future<ReadScanDataResponse> readScanData(String job) async {
var $res = await promiseToFuture<$js.ReadScanDataResponse>(
$js.chrome.documentScan.readScanData(job));
return ReadScanDataResponse.fromJS($res);
}