internal override Bitmap TakePicture()
{
Bitmap result = null;
// take a picture
WIA.Device device = m_deviceInfo.Connect();
WIA.Item item = device.ExecuteCommand(WIA.CommandID.wiaCommandTakePicture);
foreach (string format in item.Formats)
{
// transfer
WIA.ImageFile imageFile = item.Transfer(format) as WIA.ImageFile;
// save
string tempFile = System.IO.Path.GetTempFileName();
File.Delete(tempFile);
imageFile.SaveFile(tempFile);
// delete from cam
DeleteItem(device.Items, item.ItemID);
// return image
MemoryStream ms = new MemoryStream(File.ReadAllBytes(tempFile));
File.Delete(tempFile);
result = (Bitmap)Bitmap.FromStream(ms);
break;
}
return(result);
}
private void Scan(object sender, RoutedEventArgs e)
{
try
{
AppBarButton button = sender as AppBarButton;
// hmmm, reusing the device doesn't work because it somehow resets itself to capture higher resolution images.
bool hasDevice = false; // device != null;
GetScannerAsync(new Action(() =>
{
WIA.ImageFile imageFile = null;
if (!hasDevice)
{
imageFile = globalDialog.ShowAcquireImage(DeviceType: WIA.WiaDeviceType.ScannerDeviceType,
Bias: WIA.WiaImageBias.MinimizeSize, Intent: WIA.WiaImageIntent.TextIntent, AlwaysSelectDevice: false);
}
else
{
WIA.Item scannerItem = device.Items[1];
const string wiaFormatPNG = "{B96B3CAF-0728-11D3-9D7B-0000F81EF32E}";
object scanResult = globalDialog.ShowTransfer(scannerItem, wiaFormatPNG, false);
imageFile = (WIA.ImageFile)scanResult;
}
if (imageFile != null)
{
string temp = System.IO.Path.GetTempFileName();
if (File.Exists(temp))
{
File.Delete(temp);
}
imageFile.SaveFile(temp);
TempFilesManager.AddTempFile(temp);
AttachmentDialogImageItem image = new AttachmentDialogImageItem(temp);
AddItem(image);
LayoutContent();
SelectItem(image);
AutoCrop(image);
}
}));
}
catch (Exception ex)
{
device = null;
string message = GetWiaErrorMessage(ex);
MessageBox.Show(this, message, "Scan Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
public ScanResult Scan(Control owner, string fileName)
{
ScanResult result;
WIA.CommonDialogClass cdc = new WIA.CommonDialogClass();
WIA.ImageFile imageFile = null;
try
{
imageFile = cdc.ShowAcquireImage(WIA.WiaDeviceType.UnspecifiedDeviceType,
WIA.WiaImageIntent.UnspecifiedIntent,
WIA.WiaImageBias.MaximizeQuality,
"{00000000-0000-0000-0000-000000000000}",
true,
true,
false);
Marshal.ReleaseComObject(cdc);
cdc = null;
}
catch (System.Runtime.InteropServices.COMException)
{
result = ScanResult.DeviceBusy;
imageFile = null;
}
if (imageFile != null)
{
imageFile.SaveFile(fileName);
result = ScanResult.Success;
}
else
{
result = ScanResult.UserCancelled;
}
return(result);
}
/// <summary>
/// Use scanner to scan an image (scanner is selected by its unique id).
/// </summary>
/// <param name="scannerName"></param>
/// <returns>Scanned images.</returns>
public static List <Image> Scan(string scannerId)
{
List <Image> images = new List <Image>();
bool hasMorePages = true;
while (hasMorePages)
{
// select the correct scanner using the provided scannerId parameter
WIA.DeviceManager manager = new WIA.DeviceManager();
WIA.Device device = null;
foreach (WIA.DeviceInfo info in manager.DeviceInfos)
{
if (info.DeviceID == scannerId)
{
// connect to scanner
device = info.Connect();
break;
}
}
// device was not found
if (device == null)
{
// enumerate available devices
string availableDevices = "";
foreach (WIA.DeviceInfo info in manager.DeviceInfos)
{
availableDevices += info.DeviceID + "\n";
}
// show error with available devices
throw new Exception("The device with provided ID could not be found. Available Devices:\n" + availableDevices);
}
WIA.Item item = device.Items[1] as WIA.Item;
try
{
// scan image
WIA.ICommonDialog wiaCommonDialog = new WIA.CommonDialog();
WIA.ImageFile image = (WIA.ImageFile)wiaCommonDialog.ShowTransfer(item, wiaFormatBMP, false);
// save to temp file
string fileName = Path.GetTempFileName();
File.Delete(fileName);
image.SaveFile(fileName);
image = null;
// add file to output list
images.Add(Image.FromFile(fileName));
}
catch (Exception exc)
{
throw exc;
}
finally
{
item = null;
//determine if there are any more pages waiting
WIA.Property documentHandlingSelect = null;
WIA.Property documentHandlingStatus = null;
foreach (WIA.Property prop in device.Properties)
{
if (prop.PropertyID == WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_SELECT)
{
documentHandlingSelect = prop;
}
if (prop.PropertyID == WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_STATUS)
{
documentHandlingStatus = prop;
}
}
// assume there are no more pages
hasMorePages = false;
// may not exist on flatbed scanner but required for feeder
if (documentHandlingSelect != null)
{
// check for document feeder
if ((Convert.ToUInt32(documentHandlingSelect.get_Value()) & WIA_DPS_DOCUMENT_HANDLING_SELECT.FEEDER) != 0)
{
hasMorePages = ((Convert.ToUInt32(documentHandlingStatus.get_Value()) & WIA_DPS_DOCUMENT_HANDLING_STATUS.FEED_READY) != 0);
}
}
}
}
return(images);
}
public void Scan(WiaDocumentHandlingType handlingType = WiaDocumentHandlingType.Feeder,
WiaDocumentHandlingType?duplexOrOtherMode = null,
List <string> imagesFromScanner = null)
{
if (imagesFromScanner == null)
{
imagesFromScanner = new List <string>();
}
SelectDevice();
if (SelectedDevice == null)
{
return;
}
bool hasMorePages = true;
// select the correct scanner using the provided scannerId parameter
WIA.DeviceManager manager = new WIA.DeviceManager();
WIA.Device device = null;
try
{
if (manager.DeviceInfos == null || manager.DeviceInfos.Count < 1)
{
throw new WiaScannerDeviceNotFoundException((string)Application.Current.FindResource("NemaDostupnihSkeneraUzvicnik"));
}
foreach (WIA.DeviceInfo info in manager.DeviceInfos)
{
if (info.DeviceID == SelectedDevice.DeviceID)
{
// connect to scanner
device = info.Connect();
break;
}
}
if (handlingType == WiaDocumentHandlingType.Feeder)
{
if (duplexOrOtherMode != null)
{
SetProperty(device.Properties, (uint)WiaProperty.DocumentHandlingSelect, (uint)(handlingType | duplexOrOtherMode));
}
else
{
SetProperty(device.Properties, (uint)WiaProperty.DocumentHandlingSelect, (uint)handlingType);
}
}
}
catch (Exception ex)
{
device = null;
}
while (hasMorePages)
{
// device was not found
if (device == null)
{
throw new WiaScannerDeviceNotFoundException((string)Application.Current.FindResource("OdabraniSkenerNijeDostupanUzvicnik"));
}
WIA.Item item = device.Items[1] as WIA.Item;
try
{
PreviousPropertyValues.Clear();
foreach (var property in PropertyValues)
{
WIA.Property prop = GetProperty(item.Properties, property.Key);
PreviousPropertyValues.Add(property.Key, prop?.get_Value());
var supported = prop.SubTypeValues;
SetProperty(item.Properties, property.Key, property.Value);
}
// scan image
WIA.ICommonDialog wiaCommonDialog = new WIA.CommonDialog();
WIA.ImageFile image = (WIA.ImageFile)wiaCommonDialog.ShowTransfer(item, wiaFormatBMP, true);
WIA.ImageFile duplexImage = null;
if (duplexOrOtherMode == WiaDocumentHandlingType.Duplex)
{
Thread.Sleep(100);
duplexImage = (WIA.ImageFile)wiaCommonDialog.ShowTransfer(item, wiaFormatBMP, true);
}
// save to temp file
string fileName = Path.GetTempFileName();
if (image != null)
{
File.Delete(fileName);
image.SaveFile(fileName);
Marshal.FinalReleaseComObject(image);
image = null;
// add file to output list
imagesFromScanner.Add(fileName);
}
if (duplexImage != null)
{
string duplexFileName = Path.GetTempFileName();
File.Delete(duplexFileName);
duplexImage.SaveFile(duplexFileName);
Marshal.FinalReleaseComObject(duplexImage);
duplexImage = null;
// add file to output list
imagesFromScanner.Add(duplexFileName);
}
item = null;
WIA.Property documentHandlingSelect = null;
WIA.Property documentHandlingStatus = null;
foreach (WIA.Property prop in device.Properties)
{
if (prop.PropertyID == (uint)WiaProperty.DocumentHandlingSelect)
{
documentHandlingSelect = prop;
}
if (prop.PropertyID == (uint)WiaProperty.DocumentHandlingStatus)
{
documentHandlingStatus = prop;
}
}
hasMorePages = false;
if (documentHandlingSelect != null)
{
var propId = documentHandlingSelect.PropertyID;
var propValue = documentHandlingSelect.get_Value();
var propValueBitCheck = (propValue & ((uint)WiaDocumentHandlingType.Feeder));
if (propValueBitCheck != 0)
{
var statusId = documentHandlingStatus.PropertyID;
var statusValue = documentHandlingStatus.get_Value();
var statusValueBitCheck = (statusValue & WIA_DPS_DOCUMENT_HANDLING_STATUS.FEED_READY);
hasMorePages = (statusValueBitCheck != 0);
}
}
//Thread.Sleep(500);
}
catch (WiaScannerDeviceNotFoundException exc)
{
throw exc;
}
catch (IOException exc)
{
throw exc;
}
catch (COMException exc)
{
if (imagesFromScanner?.Count() < 1)
{
if ((uint)exc.ErrorCode == 0x80210003)
{
throw new WiaScannerInsertPaperException(exc.Message);
}
else
{
throw exc;
}
}
else // U slucaju da su pokupljene slike, kad dodje do poruke o poslednjoj skeniranoj prekidamo izvrsavanje
{
return;
}
}
catch (Exception exc)
{
throw exc;
}
}
}
public static List <Image> Scan(string scannerName)
{
List <Image> images = new List <Image>();
bool hasMorePages = true;
bool paperEmpty = false;
while (hasMorePages)
{
Dictionary <string, string> devices = WiaScanner.GetDevices();
var scannerId = devices.FirstOrDefault(x => x.Value == scannerName).Key;
WIA.DeviceManager manager = new WIA.DeviceManager();
WIA.Device device = null;
// select the correct scanner using the provided scannerId parameter
foreach (WIA.DeviceInfo info in manager.DeviceInfos)
{
if (info.DeviceID == scannerId && info.Type == WIA.WiaDeviceType.ScannerDeviceType)
{
// connect to scanner
device = info.Connect();
break;
}
}
// device was not found
if (device == null)
{
// enumerate available devices
string availableDevices = "";
foreach (var d in devices)
{
availableDevices += d.Value + "\n";
}
// show error with available devices
throw new Exception("The device with provided ID could not be found. Available Devices:\n" + availableDevices);
}
WIA.Item item = SetPaperSetting(device);
try
{
// scan image
WIA.ICommonDialog wiaCommonDialog = new WIA.CommonDialog();
WIA.ImageFile image = (WIA.ImageFile)wiaCommonDialog.ShowTransfer(item, wiaFormatJPEG, true);
//WIA.ImageProcess imp = new WIA.ImageProcess(); // use to compress jpeg.
//imp.Filters.Add(imp.FilterInfos["Convert"].FilterID);
////imp.Filters[1].Properties["FormatID"].set_Value(wiaFormatJPEG);
//imp.Filters[1].Properties["FormatID"].set_Value(wiaFormatJPEG);
//imp.Filters[1].Properties["Quality"].set_Value(80); // 1 = low quality, 100 = best
//image = imp.Apply(image); // apply the filters
// get a tempfile path
string fileName = Path.GetTempFileName();
// delete any existing file first
File.Delete(fileName);
// save to temp file
image.SaveFile(fileName);
// make the original (wia) image null
image = null;
// get system.drawing image from temporary file and add file to output list
images.Add(Image.FromFile(fileName, true));
//var imageBytes = (byte[])image.FileData.get_BinaryData();
//var stream = new MemoryStream(imageBytes);
//images.Add(Image.FromStream(stream));
}
catch (System.Runtime.InteropServices.COMException cx)
{
string ex = string.Empty;
int comErrorCode = GetWIAErrorCode(cx);
if (comErrorCode > 0)
{
ex = GetErrorCodeDescription(comErrorCode);
}
if (comErrorCode == 3 && images.Count == 0)
{
throw new Exception(ex);
}
else if (comErrorCode == 3 && images.Count > 0)
{
paperEmpty = true;
}
}
finally
{
item = null;
// assume there are no more pages
hasMorePages = false;
if (!paperEmpty)
{
//determine if there are any more pages waiting
WIA.Property documentHandlingSelect = null;
WIA.Property documentHandlingStatus = null;
foreach (WIA.Property prop in device.Properties)
{
if (prop.PropertyID == WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_SELECT)
{
documentHandlingSelect = prop;
}
if (prop.PropertyID == WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_STATUS)
{
documentHandlingStatus = prop;
}
}
// may not exist on flatbed scanner but required for feeder
if (documentHandlingSelect != null)
{
// check for document feeder
if ((Convert.ToUInt32(documentHandlingSelect.get_Value()) & WIA_DPS_DOCUMENT_HANDLING_SELECT.FEEDER) != 0)
{
hasMorePages = ((Convert.ToUInt32(documentHandlingStatus.get_Value()) & WIA_DPS_DOCUMENT_HANDLING_STATUS.FEED_READY) != 0);
}
}
}
}
}
return(images);
}
private void Button1_Click(object sender, EventArgs e)
{
try
{
// parametros de scanner
int resolucion = 150;
int anchoImagen = 1200;
int altoImagen = 1500;
int modoColor = 1;
// la mas importante
bool HayMasPaginas = true; // tiene mas paginas :)
// ruta principal donde se guardan los archivos
string rutaBase = string.Format("{0}\\{1}", Application.StartupPath, DateTime.Now.ToString("yyyMMddhhmmss"));
Directory.CreateDirectory(rutaBase);
// elegir escanner
WIA.CommonDialog dialogoSeleccionaEscanner = new WIA.CommonDialog();
WIA.Device escaner = dialogoSeleccionaEscanner.ShowSelectDevice(WIA.WiaDeviceType.ScannerDeviceType, true, false);
if (escaner != null)
{
idEscaner = escaner.DeviceID;
}
else
{
MessageBox.Show("No se eligió Escaner");
return;
}
int x = 0;
int numeroPaginas = 0;
while (HayMasPaginas)
{
// mientras la bandera de mas paginas este activa
// conectar escaner
// mostrando avance de escaneo
WIA.CommonDialog dialogoEscaneo = new WIA.CommonDialogClass();
WIA.DeviceManager manager = new WIA.DeviceManagerClass();
WIA.Device dispoWIA = null;
// cargando el dispositivo
foreach (WIA.DeviceInfo scannerInfo in manager.DeviceInfos)
{
if (scannerInfo.DeviceID == idEscaner)
{
WIA.Properties infoprop = null;
infoprop = scannerInfo.Properties;
dispoWIA = scannerInfo.Connect();
break;
}
}
// inicia escaneo
WIA.ImageFile imgEscaneo = null;
WIA.Item escanerItem = dispoWIA.Items[1] as WIA.Item;
AdjustScannerSettings(escanerItem, resolucion, 0, 0, anchoImagen, altoImagen, 0, 0, modoColor);
// tomando la imagen
imgEscaneo = (WIA.ImageFile)dialogoEscaneo.ShowTransfer(escanerItem, WIA.FormatID.wiaFormatPNG, false);
string RutaNombreEscaneo = String.Format("{0}\\{1}.png", rutaBase, x.ToString());
if (File.Exists(RutaNombreEscaneo))
{
//file exists, delete it
File.Delete(RutaNombreEscaneo);
}
imgEscaneo.SaveFile(RutaNombreEscaneo);
numeroPaginas++;
x++;
imgEscaneo = null;
// preguntar si hay mas documentos pendientes de escaneo
if (MessageBox.Show("¿Deseas escanear otro documento?. Antes de seleccionar 'Yes' Por favor introduzca el documento a escanear.", "Escaner", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No)
{
HayMasPaginas = false;
}
}
// una vez escaneado los dosucmentos, se hace un pdf con ellos para despues hacerlo zip
// rutaBase es el nombre de la variable de la carpeta
MessageBox.Show("Escaneo finalizado. Armando archivo pdf");
string nombreArchivoPdf = string.Format("{0}\\{1}.pdf", rutaBase, DateTime.Now.ToString("yyyMMddhhmmss"));
Document pdfDoc = new Document(PageSize.LETTER, 2, 2, 2, 2);
PdfWriter writer = PdfWriter.GetInstance(pdfDoc, new FileStream(nombreArchivoPdf, FileMode.CreateNew));
pdfDoc.Open();
// tomar las imagenes del escaneo
for (int i = 0; i < x; i++)
{
// tomar la imagen
string rutaImagen = String.Format("{0}\\{1}.png", rutaBase, i.ToString());
PdfContentByte cb = writer.DirectContent;
using (FileStream fsSource = new FileStream(rutaImagen, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
Image img = Image.GetInstance(fsSource);
img.ScaleToFit(pdfDoc.PageSize.Width, pdfDoc.PageSize.Height);
pdfDoc.Add(img);
}
}
pdfDoc.Close();
MessageBox.Show("Archivo pdf generado. Generando archivo zip");
// comprimir
FileInfo pdfFileInfo = new FileInfo(nombreArchivoPdf);
string nombreArchivoZip = string.Format("{0}\\{1}.zip", rutaBase, DateTime.Now.ToString("yyyMMddhhmmss"));
ZipOutputStream zipStream = new ZipOutputStream(File.Create(nombreArchivoZip));
zipStream.SetLevel(6);
// abrir el archivo para escribirlo
FileStream pdfFile = File.OpenRead(nombreArchivoPdf);
byte[] buffer = new byte[pdfFile.Length];
pdfFile.Read(buffer, 0, buffer.Length);
// agregando el archivo a la carpeta comprimida
ZipEntry entry = new ZipEntry(Path.GetFileName(nombreArchivoPdf))
{
DateTime = pdfFileInfo.LastWriteTime,
Size = pdfFile.Length
};
pdfFile.Close();
Crc32 objCrc32 = new Crc32();
objCrc32.Reset();
objCrc32.Update(buffer);
entry.Crc = objCrc32.Value;
zipStream.PutNextEntry(entry);
zipStream.Write(buffer, 0, buffer.Length);
zipStream.Finish();
zipStream.Close();
MessageBox.Show("Archivo zip generado. Enviando archivo por FTP");
// enviar el documento en ftp
MessageBox.Show("proceso completo.");
}
catch (Exception ex)
{
// cachando errores com
if (ex is COMException)
{
// Convert the error code to UINT
uint errorCode = (uint)((COMException)ex).ErrorCode;
// See the error codes
if (errorCode == 0x80210006)
{
MessageBox.Show("The scanner is busy or isn't ready");
}
else if (errorCode == 0x80210064)
{
MessageBox.Show("The scanning process has been cancelled.");
}
else if (errorCode == 0x8021000C)
{
MessageBox.Show("There is an incorrect setting on the WIA device.");
}
else if (errorCode == 0x80210005)
{
MessageBox.Show("The device is offline. Make sure the device is powered on and connected to the PC.");
}
else if (errorCode == 0x80210001)
{
MessageBox.Show("An unknown error has occurred with the WIA device.");
}
}
else
{
MessageBox.Show("Error " + ex.Message);
}
}
}