// Acquire image.
private void AcquireImages(Device device)
{
    // open the device
    device.Open();
    // specify that application wants to acquire 1 image from device
    device.XferCount = 1;

    // subscribe to the device events
    device.ImageAcquired += new EventHandler<ImageAcquiredEventArgs>(device_ImageAcquired);
    device.ScanCompleted += new EventHandler(device_ScanCompleted);

    // start the asynchronous image acquisition process
    device.Acquire();
}

// Image is acquired.
private void device_ImageAcquired(object sender, ImageAcquiredEventArgs e)
{
    // save image to a JPEG file
    e.Image.Save(@"d:\image.jpg");

    // image will be disposed automatically when new image will be acquired or
    // device will be closed
}

// Acquire image.
private void AcquireImages(Device device)
{
    // open the device
    device.Open();
    // specify that application wants to acquire 1 images from device
    device.XferCount = 1;

    // subscribe to the device events
    device.ImageAcquired += new EventHandler<ImageAcquiredEventArgs>(device_ImageAcquired);
    device.ScanCompleted += new EventHandler(device_ScanCompleted);

    // start the asynchronous image acquisition process
    device.Acquire();
}

// Image is acquired.
private void device_ImageAcquired(object sender, ImageAcquiredEventArgs e)
{
    // save image to a JPEG file
    e.Image.Save(@"d:\image.jpg");

    // dispose the acquired image
    e.Image.Dispose();
}

// Acquire image.
private void AcquireImages(Device device)
{
    // specify that we want to store 20 images in internal image buffer of SDK
    device.AcquiredImages.Capacity = 20;    

    // open the device
    device.Open();
    // specify that application wants to acquire 20 images from device
    device.XferCount = 20;

    // subscribe to the device events
    device.ImageAcquired += new EventHandler<ImageAcquiredEventArgs>(device_ImageAcquired);
    device.ScanCompleted += new EventHandler(device_ScanCompleted);

    // start the asynchronous image acquisition process
    device.Acquire();
}

// Image is acquired.
private void device_ImageAcquired(object sender, ImageAcquiredEventArgs e)
{
    // nothing to do
    // image is automatically added to the internal image buffer of SDK
}

// Scan is completed.
private void device_ScanCompleted(object sender, EventArgs e)
{
    // get reference to the device
    Device device = (Device)sender;

    // specify TIFF encoder settings
    device.AcquiredImages.TiffMultiPage = true;
    device.AcquiredImages.TiffCompression = TiffCompression.Auto;


    // for each image in image collection
    for (int i = 0; i < device.AcquiredImages.Count; i++)
    {
        // add image to a multipage TIFF file
        device.AcquiredImages[i].Save(@"d:\document.tif");
    }

    // clear the image collection and dispose all images
    _images.Clear();
}

AcquiredImageCollection _images = new AcquiredImageCollection();

// Acquire image.
private void AcquireImages(Device device)
{



    // open the device
    device.Open();
    // specify that application wants to acquire 20 images from device
    device.XferCount = 20;

    // subscribe to the device events
    device.ImageAcquired += new EventHandler<ImageAcquiredEventArgs>(device_ImageAcquired);
    device.ScanCompleted += new EventHandler(device_ScanCompleted);

    // start the asynchronous image acquisition process
    device.Acquire();
}

// Image is acquired.
private void device_ImageAcquired(object sender, ImageAcquiredEventArgs e)
{
    // add acquired image to the image collection
    _images.Add(e.Image);
}

// Scan is completed.
private void device_ScanCompleted(object sender, EventArgs e)
{



    // specify TIFF encoder settings
    TwainTiffEncoderSettings tiffEncoderSettings = new TwainTiffEncoderSettings();
    tiffEncoderSettings.TiffMultiPage = true;
    tiffEncoderSettings.TiffCompression = TiffCompression.Auto;

    // for each image in image collection
    for (int i = 0; i < _images.Count; i++)
    {
        // add image to a multipage TIFF file
        _images[i].Save(@"d:\document.tif", tiffEncoderSettings);
    }

    // clear the image collection and dispose all images
    _images.ClearAndDisposeItems();
}