public void TwainImageReceived(RecoveryIndexImage image, byte[] thumbnail, string tempImageFilePath)
{
var scannedImage = new ScannedImage(image);
if (thumbnail != null)
{
scannedImage.SetThumbnail(new Bitmap(new MemoryStream(thumbnail)));
}
ImageCallback?.Invoke(scannedImage, tempImageFilePath);
}
public async Task <int> Scan(ScanProfile scanProfile, ScanParams scanParams)
{
if (scanProfile.DriverName == ProxiedScanDriver.DRIVER_NAME)
{
scanProfile.DriverName = scanProfile.ProxyDriverName;
}
if (scanProfile.TwainImpl == TwainImpl.Legacy)
{
scanProfile.TwainImpl = TwainImpl.OldDsm;
}
scanProfile.UseNativeUi = false;
var internalParams = new ScanParams
{
DetectPatchCodes = scanParams.DetectPatchCodes,
NoUi = true,
NoAutoSave = true,
DoOcr = false,
NoThumbnails = true,
SkipPostProcessing = true
};
var callback = OperationContext.Current.GetCallbackChannel <IScanCallback>();
var pages = 0;
await scanPerformer.PerformScan(scanProfile, internalParams, null, null, image =>
{
// TODO: Should stream this
// TODO: Also should think about avoiding the intermediate filesystem
using (image)
{
var indexImage = image.RecoveryIndexImage;
var imageBytes = File.ReadAllBytes(image.RecoveryFilePath);
var sanitizedIndexImage = new RecoveryIndexImage
{
FileName = Path.GetExtension(indexImage.FileName),
TransformList = indexImage.TransformList,
BitDepth = indexImage.BitDepth,
HighQuality = indexImage.HighQuality
};
callback.ImageReceived(imageBytes, sanitizedIndexImage);
pages++;
}
}, cancellation.Token);
return(pages);
}
public ScannedImage(RecoveryIndexImage recoveryIndexImage)
{
recoveryImage = RecoveryImage.LoadExisting(recoveryIndexImage);
transformList = recoveryImage.IndexImage.TransformList;
}
public void ImageReceived(byte[] imageData, RecoveryIndexImage indexImage)
{
ImageCallback?.Invoke(imageData, indexImage);
}
