The event handler receives an argument of type RequestedImageUpdatedEventArgs containing data related to this event. The following RequestedImageUpdatedEventArgs properties provide information specific to this event.
Property | Description |
---|---|
Cell | Gets the cell into which the image is inserted. |
InstanceInformation | Gets or sets the DICOM instance information about the image |
SubCellIndex | Gets the sub cell index for the requested image. |
This event is raised each time after the Leadtools.MedicalViewer.MedicalViewer control requests an image for display and the image has been sent to the control.
using LeadtoolsExamples.Common;
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Dicom;
using Leadtools.MedicalViewer;
using Leadtools.Dicom.Scu.Common;
using Leadtools.ImageProcessing;
using Leadtools.Dicom.AddIn.Common;
using Leadtools.Dicom.Scu;
using Leadtools.Medical.Workstation.Client;
using Leadtools.Medical.Workstation.Client.Pacs;
using Leadtools.Medical.Workstation.Loader;
MedicalViewer viewer = new MedicalViewer();
public void LoadSeries()
{
Leadtools.Examples.Support.SetLicense();
AeInfo clientInfo = new AeInfo();
clientInfo.Address = Dns.GetHostName();
clientInfo.Port = 1000;
clientInfo.AETitle = "TEST_CLIENT";
DicomScp serverInfo = new DicomScp();
serverInfo.AETitle = "LEAD_SERVER";
serverInfo.Port = 104;
serverInfo.PeerAddress = GetLocalServerAddress();
serverInfo.Timeout = 30;
PacsQueryClient queryClient = new PacsQueryClient(clientInfo, serverInfo);
DicomDataSet[] queryResult = queryClient.FindSeries(new FindQuery());
if (queryResult.Length > 0)
{
PacsRetrieveClient retrieveClient = new PacsRetrieveClient(clientInfo, serverInfo);
//make sure you have configured the workstation database correctly for the PacsRetrieveClient to store the images.
retrieveClient.StoreRetrievedImages = true; //we want to store the images locally so we can view them later.
MedicalViewerLoader loader = new MedicalViewerLoader(retrieveClient);
loader.ViewerControl = viewer;
loader.Layout.Auto = true;
loader.LazyLoading = true; //this will cause to load the images for displayed sub-cells only
loader.ViewerPreLoadedImages = 1; //this will allow to load 1 image after and before the displayed sub-cell for fast scrolling.
loader.ProgressState += new ProgressEventHandler(loader_ProgressState);
loader.RequestedImageUpdated += new EventHandler<RequestedImageUpdatedEventArgs>(loader_RequestedImageUpdated);
string studyInstanceUID = queryResult[0].GetValue<string>(DicomTag.StudyInstanceUID, string.Empty);
string seriesInstanceUID = queryResult[0].GetValue<string>(DicomTag.SeriesInstanceUID, string.Empty);
if (loader.LoadSeries(studyInstanceUID, seriesInstanceUID))
{
Console.WriteLine("Number of viewer cells: {0}", viewer.Cells.Count);
Console.WriteLine("Number of loader created cells: {0}", loader.SeriesCells.Length);
foreach (MedicalViewerMultiCell cell in loader.FindSeriesCells(seriesInstanceUID))
{
string sopInstanceUID = loader.FindDisplayedCellInstanceInformation(cell, 0).SOPInstanceUID;
Console.WriteLine("Cell #{0} has first image with SOPInstanceUID={1}", viewer.Cells.IndexOf(cell), sopInstanceUID);
DicomDataSet ds = loader.GetDicom(sopInstanceUID);
DicomElement imageElement = ds.FindFirstElement(null, DicomTag.PixelData, true);
if (null != imageElement && imageElement.Length > 0)
{
using (RasterCodecs codec = new RasterCodecs())
{
using (RasterImage image = ds.GetImage(imageElement, 0, 24, RasterByteOrder.Gray, DicomGetImageFlags.AutoApplyModalityLut | DicomGetImageFlags.AutoApplyVoiLut))
{
codec.Save(image, Path.Combine(LEAD_VARS.ImagesDir, sopInstanceUID), RasterImageFormat.Jpeg, image.BitsPerPixel);
Console.WriteLine("Image with SOPInstanceUID={0} saved to {1}", sopInstanceUID, Path.Combine(LEAD_VARS.ImagesDir, sopInstanceUID));
}
}
}
string[] imagesPath = loader.GetSeriesImages(cell);
Console.WriteLine("Cell #{0} is loaded from {1} file(s):", viewer.Cells.IndexOf(cell), imagesPath.Length);
foreach (string imagePath in imagesPath)
{
Console.WriteLine(imagesPath);
}
}
}
loader.Close();
}
}
void loader_RequestedImageUpdated(object sender, RequestedImageUpdatedEventArgs e)
{
Console.WriteLine("Image streamer for cell {0}, sub-cell {1}", viewer.Cells.IndexOf(e.Cell), e.SubCellIndex);
}
void loader_ProgressState(object sender, ProgressEventArgs e)
{
Console.WriteLine(e.Message);
}
public IPAddress GetLocalServerAddress()
{
IPAddress[] addresses;
//you can use any IP address which a DICOM server is listening to.
addresses = Dns.GetHostAddresses(Dns.GetHostName());
foreach (IPAddress address in addresses)
{
if (address.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
return address;
}
}
throw new InvalidOperationException("No IP Address V4 found for this machine.");
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}