//using asprise_imaging_api;
Result result = new AspriseImaging().Scan(new Request()
   new RequestOutputItem(AspriseImaging.OUTPUT_RETURN_BASE64, AspriseImaging.FORMAT_JPG) // Output type and image format
 ), "select", true, true); // "select" a scanner or use "default" scanner without selection

List<Image> images = result == null ? null : result.GetImages(); // null when user cancels
// you may then display the images using PictureBox ...

// --- Alternatively, request can be specified using JSON ---
Result result = new AspriseImaging().Scan("{" +
  "  \"output_settings\" : [ {" +
  "    \"type\" : \"return-base64\"," +
  "    \"format\" : \"jpg\"" +
  "  } ]" +
  "}", "select", true, true);

Result result = new AspriseImaging().Scan(new Request().AddOutputItem(
  new RequestOutputItem(AspriseImaging.OUTPUT_UPLOAD, AspriseImaging.FORMAT_JPG).SetUploadSetting( // Upload
    new UploadSetting("http://asprise.com/scan/applet/upload.php?action=dump")
      .AddPostField("title", "Test scan"))) // Additional data to be passed to server: post fields, headers, etc.
 "select", true, true);

String response = result == null ? null : result.GetUploadResponse();
Console.WriteLine("From server: \n" + response);

// Alternatively, request can be specified using JSON
Result result = new AspriseImaging().Scan("{" +
  "  \"output_settings\" : [ {" +
  "    \"type\" : \"upload\"," +
  "    \"format\" : \"jpg\"," +
  "    \"upload_target\" : {" +
  "      \"url\" : \"http://asprise.com/scan/applet/upload.php?action=dump\"," +
  "      \"post_fields\" : {" +
  "        \"title\" : \"Test scan\"" +
  "      }" +
  "    }" +
  "  } ]" +
 "}", "select", true, true);

Result result = new AspriseImaging().Scan(new Request().AddOutputItem(
  new RequestOutputItem(AspriseImaging.OUTPUT_SAVE, AspriseImaging.FORMAT_PDF)
    .SetPdfTextLine("Scanned on ${DATETIME} by user X") // Optional text line at the bottom of the 1st page
    .AddExifTag("DocumentName", "Scan to PDF by Asprise") // Optional PDF doc properties (metadata)
    .SetSavePath(".\\${TMS}${EXT}")
  ).SetPromptScanMore(true) // whether to prompt user to scan more pages
 , "select", true, true);

string pdfFile = result == null ? null : result.GetPdfFile();
Console.WriteLine("Documents scanned as PDF: " + pdfFile);

// Alternatively, request can be specified using the following JSON:
{
  "output_settings" : [ {
    "type" : "save",
    "format" : "pdf",
    "pdf_text_line" : "Scanned on ${DATETIME} by user X",
    "pdf_owner_password" : "",
    "pdf_user_password" : "",
    "exif" : {
      "DocumentName" : "Scan to PDF by Asprise"    },
    "save_path" : ".\\${TMS}${EXT}"  } ],
  "prompt_scan_more" : true
}

Result result = new AspriseImaging().Scan(new Request().AddOutputItem(
  new RequestOutputItem(AspriseImaging.OUTPUT_SAVE, AspriseImaging.FORMAT_TIF)
    .SetTiffCompression(AspriseImaging.TIFF_COMPRESSION_CCITT_G4)// CCITT T.6 Compression
    .SetSavePath(".\\${TMS}${EXT}")
 ), "select", true, true);

string tiffFile = result == null ? null : result.GetTiffFile();
Console.WriteLine("Documents scanned as TIFF: " + tiffFile);

// Alternatively, request can be specified using the following JSON:
{
  "output_settings" : [ {
    "type" : "save",
    "format" : "tif",
    "tiff_compression": "G4",
    "save_path" : ".\\${TMS}${EXT}"  } ]
}

Result result = new AspriseImaging().Scan(new Request()
  .SetRecognizeBarcodes(true)
  .AddOutputItem(new RequestOutputItem(AspriseImaging.OUTPUT_SAVE, AspriseImaging.FORMAT_JPG).SetSavePath(".\\${TMS}${EXT}")),
 "select", true, true);

List<string> barcodes = result == null ? null : result.GetBarcodes();
Console.WriteLine("Barcodes: " + string.Join(";\n", barcodes == null ? new string[0] : barcodes.ToArray()));

// Alternatively, request can be specified using the following JSON:
{
   "recognize_barcodes" : true,
   "output_settings" : [ {
     "type" : "save",
     "format" : "jpg",
     "save_path" : ".\\${TMS}${EXT}"   } ]
 }

Result result = new AspriseImaging().Scan(new Request()
  .SetTwainCap(TwainConstants.CAP_FEEDERENABLED, true) // select feeder instead of flatbed
  .SetTwainCap(TwainConstants.CAP_AUTOFEED, true)
  .SetTwainCap(TwainConstants.CAP_DUPLEXENABLED, true)
  .SetDiscardBlankPages(true)
  .SetBlankPageThreshold(0.02m) // Discard pages with ink coverage < 2%
  .AddOutputItem(new RequestOutputItem(AspriseImaging.OUTPUT_SAVE, AspriseImaging.FORMAT_PDF).SetSavePath(".\\${TMS}${EXT}")),
 "select", true, true);

string pdfFile = result == null ? null : result.GetPdfFile();
Console.WriteLine("Documents scanned as PDF: " + pdfFile);

// Alternatively, request can be specified using the following JSON:
{
    "twain_cap_setting" : {
      "CAP_FEEDERENABLED" : true,
      "CAP_AUTOFEED" : true,
      "CAP_DUPLEXENABLED" : true
    },
    "discard_blank_pages" : true,
     // pages with ink coverage below the threshold will be discarded
    "blank_page_threshold" : "0.02", // default value is 0.02
    "output_settings" : [ {
      "type" : "save",
      "format" : "pdf",
      "save_path" : ".\\${TMS}${EXT}"    } ]
 }

AspriseImaging imaging = new AspriseImaging();
List<Source> sourcesNameOnly = imaging.ScanListSources(); // Names without capabilities

List<Source> sourcesFullDetails = imaging.ScanListSourcesWithFullDetails(); // with caps
foreach (Source source in sourcesFullDetails)
{
    Console.WriteLine(source.ProductName + ": pixel type = " +
        source.GetCap(TwainConstants.ICAP_PIXELTYPE).GetCurrentValue());
}

Source defaultSource = Source.GetDefaultSource(sourcesFullDetails);
Console.WriteLine("Default source is: " + defaultSource);