/// <summary>
///
/// </summary>
/// <param name="dispositivo"></param>
/// <param name="tipo"></param>
private static void ConfiguraTipoScan(ref Device dispositivo, TipoLeituraDocumento tipo)
{
//bool canDuplex = dispositivo.
//DeviceSettings.DocumentHandlingCapabilities.HasFlag(DocumentHandlingCapabilities.Dup)
int requested = (int)tipo;
int supported = (int)LePropriedade(ref dispositivo,
DEVICE_PROPERTY_DOCUMENT_HANDLING_CAPABILITIES_ID);
if (supported > WIA_DPS_DOCUMENT_HANDLING_SELECT.AUTO_ADVANCE && requested == (int)TipoLeituraDocumento.FeederDuplex) //Device doesn't support Feed/duplex
{
Mensagens.Add("Configuração de digitalização dupla face não é suportada pelo dispositivo");
requested = (int)TipoLeituraDocumento.Feeder;
}
if ((requested & supported) != 0)
{
if ((requested & (int)TipoLeituraDocumento.Feeder) != 0)
{
GravaPropriedade(ref dispositivo, DEVICE_PROPERTY_PAGES_ID, 1);
}
GravaPropriedade(ref dispositivo, DEVICE_PROPERTY_DOCUMENT_HANDLING_SELECT_ID, requested);
}
}
/// <summary>
///
/// </summary>
/// <param name="scannerId"></param>
/// <param name="qualidade"></param>
/// <param name="tamanho"></param>
/// <param name="tipo"></param>
/// <returns></returns>
private static List <KeyValuePair <string, Image> > DigitalizaItens(string scannerId, WIAScanQuality qualidade, WIAPageSize tamanho, TipoLeituraDocumento tipo)
{
List <KeyValuePair <string, Image> > images = new List <KeyValuePair <string, Image> >();
//Dictionary<string,Image> images = new Dictionary<string,Image>();
bool hasMorePages = true;
WIA.Item item;
Mensagens = new HashSet <string>();
while (hasMorePages)
{
// select the correct scanner using the provided scannerId parameter
WIA.Device device = LocalizaDispositio(scannerId);
try
{
//SetWIAProperty(device.Properties, WIA_DEVICE_PROPERTY_PAGES_ID, 1);
//Escolha da forma de scaneamento, Feeder ou Flatbad
ConfiguraTipoScan(ref device, tipo);
item = device.Items[1] as WIA.Item;
AjustaPropriedadesDispositivo(item, 0, 0, 0, 0, 1, qualidade, tamanho);
// scan image
WIA.ICommonDialog wiaCommonDialog = new WIA.CommonDialog();
WIA.ImageFile image = (WIA.ImageFile)wiaCommonDialog.ShowTransfer(item, WIA.FormatID.wiaFormatPNG, false);
if (image != null)
{
// save to file
string fileName = SalvarPNG(image);
images.Add(new KeyValuePair <string, Image>(fileName, Image.FromFile(fileName)));
}
//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);
}
}
}
catch (Exception exc)
{
int error = CodigoErroWIA(exc);
Mensagens.Add(DescricaoErro(exc));
if (error == WIA_ERROR_PAPER_EMPTY)
{
hasMorePages = false;
}
if (error == 0)
{
throw exc;
}
}
finally
{
item = null;
}
}
return(images);
}
/// <summary>
///
/// </summary>
/// <param name="scannerId"></param>
/// <param name="qualidade"></param>
/// <param name="tamanho"></param>
/// <param name="tipo"></param>
/// <returns></returns>
private static List <KeyValuePair <string, Image> > DigitalizaItensEspecifico(string scannerId, WIAScanQuality qualidade, WIAPageSize tamanho, TipoLeituraDocumento tipo)
{
List <KeyValuePair <string, Image> > images = new List <KeyValuePair <string, Image> >();
//Dictionary<string,Image> images = new Dictionary<string,Image>();
bool hasMorePages = true;
WIA.Item item;
Mensagens = new HashSet <string>();
// 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)
{
device = info.Connect();
//AcquireNormal(device);
Dispositivos[scannerId].Propriedades.Clear();
CarregaPropriedades(device, Dispositivos[scannerId].Propriedades);
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
Mensagens.Add("Não foi possível conectar-se ao o dispositivo especificado\n" + availableDevices);
}
ConfiguraTipoScan(ref device, tipo);
item = device.Items[1] as WIA.Item;
AjustaPropriedadesDispositivo(item, 0, 0, 0, 0, 1, qualidade, tamanho);
WIA.ICommonDialog wiaCommonDialog = new WIA.CommonDialog();
while (hasMorePages)
{
try
{
//Some scanner need WIA_DPS_PAGES to be set to 1, otherwise all pages are acquired but only one is returned as ImageFile
GravaPropriedade(ref device, DEVICE_PROPERTY_PAGES_ID, 1);
//Scan image
WIA.ImageFile image = (WIA.ImageFile)wiaCommonDialog.ShowTransfer(item, WIA.FormatID.wiaFormatPNG, false);
if (image != null)
{
// save to file
string fileName = SalvarPNG(image);
images.Add(new KeyValuePair <string, Image>(fileName, Image.FromFile(fileName)));
}
//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);
}
}
}
catch (Exception exc)
{
int error = CodigoErroWIA(exc);
Mensagens.Add(DescricaoErro(exc));
if (error == WIA_ERROR_PAPER_EMPTY)
{
hasMorePages = false;
}
if (error == 0)
{
throw exc;
}
}
}
device = null;
return(images);
}
/// <summary>
/// Inicia a digitalização dos documentos depositados no dispositivo selecionado
/// </summary>
/// <param name="scannerId"></param>
/// <param name="tamanho"></param>
/// <param name="tipoDigitalizacao"></param>
/// <returns></returns>
public static List <KeyValuePair <string, Image> > Scan(string scannerId, WIAPageSize tamanho, TipoLeituraDocumento tipoDigitalizacao)
{
WIA.Device device = LocalizaDispositio(scannerId);
String description = device.Properties["Name"].get_Value().ToString();
if (description.ToLower().Contains("brother") || description.Contains("Canon MF4500"))
{
return(DigitalizaItensEspecifico(scannerId, WIAScanQuality.Final, tamanho, tipoDigitalizacao));
}
else
{
return(DigitalizaItens(scannerId, WIAScanQuality.Final, tamanho, tipoDigitalizacao));
}
}
