/// <summary>
/// Use scanner provided scanner id to scan an image.
/// </summary>
/// <returns>Scanned images.</returns>
public static List<Image> Scan(String scannerId, ScanSettings settings)
{
// select the correct scanner using the provided scannerId parameter
DeviceManager manager = new DeviceManager();
Device device = null;
foreach (DeviceInfo info in manager.DeviceInfos)
{
if (info.DeviceID == scannerId)
{
try
{ //Check connection to scanner
device = info.Connect();
}
catch (Exception)
{
throw new Exception("Cannot connect to scanner, please check your device and try again.");
}
break;
}
}
// device was not found
if (device == null)
{
throw new Exception("The provided scanner device could not be found.");
}
return Acquire(device, settings);
}
/// <summary>
/// Use scanner to scan an image (scanner is selected by its unique id).
/// </summary>
/// <param name="scannerId"></param>
/// <returns>List of scanned images.</returns>
private static List <Bitmap> Acquire(Device device, ScanSettings settings)
{
String description = device.Properties["Name"].get_Value().ToString();
if (description.ToLower().Contains("brother") || description.Contains("Canon MF4500"))
{
Logger.Log("Starting acquisition (Brother)");
return(AcquireBrother(device, settings));
}
else
{
Logger.Log("Starting acquisition (Normal)");
return(AcquireNormal(device, settings));
}
}
public static List <Bitmap> StartScan()
{
List <Bitmap> result = new List <Bitmap>();
if (Program.config.SavePath == "")
{
Program.ShowError("Vui lòng chọn thư mục lưu kết quả");
return(result);
}
if (!PathWritable(Program.config.SavePath))
{
Program.ShowError("Thư mục lưu kết quả không được quyền ghi dữ liệu");
return(result);
}
if (Program.config.ScannerID == "")
{
Program.ShowError("Vui lòng chọn máy quét!");
return(result);
}
//Load settings
ScanSettings settings = new ScanSettings();
settings.color = Program.config.ScanColor;
settings.dpi = Program.config.ScanDpi;
settings.adf = Program.config.ScanADF;
settings.tryFlatbed = Program.config.ScanTryFlatbed;
try
{
result = WIAScanner.Scan(Program.config.ScannerID, settings);
//Call garbage collector
GC.Collect();
}
catch (Exception ex)
{
Program.ShowError(ex);
}
return(result);
}
/*===================
* Scanning routines
*===================*/
private static void SetDeviceHandling(ref Device device, ScanSettings settings)
{
Logger.Log("Setup device handling");
try
{ //Setup ADF vs Flatbed
if (settings.adf)
{
SetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_SELECT, WIA_DPS_DOCUMENT_HANDLING_SELECT.FEEDER);
}
else
{
SetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_SELECT, WIA_DPS_DOCUMENT_HANDLING_SELECT.FLATBED);
}
}
catch (Exception ex)
{
Logger.Log("Cannot configure scanner mode properly\n " + ex);
}
}
private static void SetDeviceProperties(ref Device device, ScanSettings settings)
{
Logger.Log("Setup device properties");
// configure scanning properties
Item scan = device.Items[1] as Item;
foreach (Property prop in scan.Properties)
{
switch (prop.PropertyID)
{
case 6146: //4 is Black-white, gray is 2, color 1
SetProperty(prop, settings.color);
break;
case 6147: //dots per inch/horizontal
SetProperty(prop, settings.dpi);
break;
case 6148: //dots per inch/vertical
SetProperty(prop, settings.dpi);
break;
case 6149: //x point where to start scan
SetProperty(prop, 0);
break;
case 6150: //y-point where to start scan
SetProperty(prop, 0);
break;
case 6151: //horizontal exent
SetProperty(prop, (int)2480);
break;
case 6152: //vertical extent
SetProperty(prop, (int)3507);
break;
}
}
}
public static void StartScan()
{
if (Program.config.SavePath == "")
{
Program.ShowError("Cannot start scanning, no save path defined");
return;
}
if (!PathWritable(Program.config.SavePath))
{
Program.ShowError("Provided path is not writable");
return;
}
if (Program.config.ScannerID == "")
{
Program.ShowError("Cannot start scanning, no scanner device selected.");
return;
}
//Load settings
ScanSettings settings = new ScanSettings();
settings.color = Program.config.ScanColor;
settings.dpi = Program.config.ScanDpi;
settings.adf = Program.config.ScanADF;
settings.tryFlatbed = Program.config.ScanTryFlatbed;
try
{
SaveImages(WIAScanner.Scan(Program.config.ScannerID, settings));
//Call garbage collector
GC.Collect();
}
catch (Exception ex)
{
Program.ShowError(ex);
}
}
/// <summary>
/// Use scanner to scan an image (with user selecting the scanner from a dialog).
/// </summary>
/// <returns>Scanned images.</returns>
public static List<Image> Scan(ScanSettings settings)
{
ICommonDialog dialog = new CommonDialog();
Device device = null;
try
{
device = dialog.ShowSelectDevice(WiaDeviceType.ScannerDeviceType, true, false);
}
catch (Exception)
{
throw new Exception("Cannot initialize scanner selection window. No WIA scanner installed?");
}
if (device != null)
{
return Acquire(device, settings);
}
else
{
throw new Exception("You must first select a WIA scanner.");
}
}
public static void StartScan()
{
if (Program.config.SavePath == "")
{
Program.ShowError("Cannot start scanning, no save path defined");
return;
}
if (!PathWritable(Program.config.SavePath))
{
Program.ShowError("Provided path is not writable");
return;
}
if (Program.config.ScannerID == "")
{
Program.ShowError("Cannot start scanning, no scanner device selected.");
return;
}
//Load settings
ScanSettings settings = new ScanSettings();
settings.color = Program.config.ScanColor;
settings.dpi = Program.config.ScanDpi;
settings.adf = Program.config.ScanADF;
settings.tryFlatbed = Program.config.ScanTryFlatbed;
try
{
SaveImages(WIAScanner.Scan(Program.config.ScannerID, settings));
//Call garbage collector
GC.Collect();
}
catch (Exception ex)
{
Program.ShowError(ex);
}
}
/// <summary>
/// Use scanner to scan an image (with user selecting the scanner from a dialog).
/// </summary>
/// <returns>Scanned images.</returns>
public static List <Bitmap> Scan(ScanSettings settings)
{
ICommonDialog dialog = new CommonDialog();
Device device = null;
try
{
device = dialog.ShowSelectDevice(WiaDeviceType.ScannerDeviceType, true, false);
}
catch (Exception)
{
throw new Exception("Không thể khởi tạo máy scan. Vui lòng kiểm tra lại!");
}
if (device != null)
{
return(Acquire(device, settings));
}
else
{
throw new Exception("Vui lòng chọn máy quét.");
}
}
/// <summary>
/// Use scanner to scan an image (with user selecting the scanner from a dialog).
/// </summary>
/// <returns>Scanned images.</returns>
public static List <Image> Scan(ScanSettings settings)
{
ICommonDialog dialog = new CommonDialog();
Device device = null;
try
{
device = dialog.ShowSelectDevice(WiaDeviceType.ScannerDeviceType, true, false);
}
catch (Exception)
{
throw new Exception("Cannot initialize scanner selection window. No WIA scanner installed?");
}
if (device != null)
{
return(Acquire(device, settings));
}
else
{
throw new Exception("You must first select a WIA scanner.");
}
}
private static List <Bitmap> AcquireNormal(Device device, ScanSettings settings)
{
DeviceManager manager = new DeviceManager();
List <Bitmap> images = new List <Bitmap>();
bool hasMorePages = true;
Item scan = null;
//Acquisition iteration
ICommonDialog wiaCommonDialog = new CommonDialog();
while (hasMorePages)
{
try
{ //Looks like these need to be done for each iteration
SetDeviceHandling(ref device, settings);
scan = device.Items[1] as Item;
SetDeviceProperties(ref device, settings);
}
catch (Exception)
{
throw new Exception("Cannot connect to scanner, please check your device and try again.");
}
Logger.Log("DEBUG: document handling " + GetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_SELECT));
Logger.Log("DEBUG: feeder status " + GetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_STATUS));
try
{
//Scan image
ImageFile image = (ImageFile)scan.Transfer(wiaFormatBMP);
if (image != null)
{
// convert to byte array
Byte[] imageBytes = (byte[])image.FileData.get_BinaryData();
// add file to output list
Bitmap bmp = new Bitmap(Image.FromStream(new MemoryStream(imageBytes)));
images.Add(bmp);
//Cleanup
image = null;
imageBytes = null;
}
else
{
Logger.Log("Scan cancelled");
break;
}
// assume there are no more pages
hasMorePages = false;
if (settings.adf)
{
try
{ //try to read feed ready property (some scanners report ready even if no more pages)
int status = GetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_STATUS);
hasMorePages = (status & WIA_DPS_DOCUMENT_HANDLING_STATUS.FEED_READY) != 0;
Logger.Log("ADF has more pages: " + (hasMorePages ? "Yes" : "No"));
}
catch { }
}
}
catch (System.Runtime.InteropServices.COMException ex)
{
switch ((uint)ex.ErrorCode)
{
case WIA_ERRORS.WIA_ERROR_PAPER_EMPTY:
Logger.Log("Paper feed empty");
if (images.Count == 0 && settings.adf && settings.tryFlatbed)
{ //if no page scanned try try flatbed
settings.adf = false;
}
else
{
hasMorePages = false;
}
break;
case WIA_ERRORS.WIA_ERROR_PAPER_JAM:
Program.ShowError("Paper jam inside the scanner feeder");
break;
case WIA_ERRORS.WIA_ERROR_BUSY:
Logger.Log("Device is busy, retrying in 2s...");
System.Threading.Thread.Sleep(2000);
break;
default:
break;
}
}
}
device = null;
return(images);
}
private static void SetDeviceProperties(ref Device device, ScanSettings settings)
{
Logger.Log("Setup device properties");
// configure scanning properties
Item scan = device.Items[1] as Item;
foreach (Property prop in scan.Properties)
{
switch (prop.PropertyID)
{
case 6146: //4 is Black-white, gray is 2, color 1
SetProperty(prop, settings.color);
break;
case 6147: //dots per inch/horizontal
SetProperty(prop, settings.dpi);
break;
case 6148: //dots per inch/vertical
SetProperty(prop, settings.dpi);
break;
case 6149: //x point where to start scan
SetProperty(prop, 0);
break;
case 6150: //y-point where to start scan
SetProperty(prop, 0);
break;
case 6151: //horizontal exent
SetProperty(prop, (int)(8.5 * settings.dpi));
break;
case 6152: //vertical extent
SetProperty(prop, 11 * settings.dpi);
break;
}
}
}
/*===================
* Scanning routines
*===================*/
private static void SetDeviceHandling(ref Device device, ScanSettings settings)
{
Logger.Log("Setup device handling");
try
{ //Setup ADF vs Flatbed
if (settings.adf)
SetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_SELECT, WIA_DPS_DOCUMENT_HANDLING_SELECT.FEEDER);
else
SetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_SELECT, WIA_DPS_DOCUMENT_HANDLING_SELECT.FLATBED);
}
catch (Exception ex)
{
Logger.Log("Cannot configure scanner mode properly\n " + ex);
}
}
private static List<Image> AcquireNormal(Device device, ScanSettings settings)
{
DeviceManager manager = new DeviceManager();
List<Image> images = new List<Image>();
bool hasMorePages = true;
Item scan = null;
//Acquisition iteration
ICommonDialog wiaCommonDialog = new CommonDialog();
while (hasMorePages)
{
try
{ //Looks like these need to be done for each iteration
SetDeviceHandling(ref device, settings);
scan = device.Items[1] as Item;
SetDeviceProperties(ref device, settings);
}
catch (Exception)
{
throw new Exception("Cannot connect to scanner, please check your device and try again.");
}
Logger.Log("DEBUG: document handling " + GetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_SELECT));
Logger.Log("DEBUG: feeder status " + GetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_STATUS));
try
{
//Scan image
ImageFile image = (ImageFile)wiaCommonDialog.ShowTransfer(scan, wiaFormatBMP, false);
if (image != null)
{
// convert to byte array
Byte[] imageBytes = (byte[])image.FileData.get_BinaryData();
// add file to output list
images.Add(Image.FromStream(new MemoryStream(imageBytes)));
//Cleanup
image = null;
imageBytes = null;
}
else
{
Logger.Log("Scan cancelled");
break;
}
// assume there are no more pages
hasMorePages = false;
if (settings.adf)
{
try
{ //try to read feed ready property (some scanners report ready even if no more pages)
int status = GetDeviceIntProperty(ref device, WIA_PROPERTIES.WIA_DPS_DOCUMENT_HANDLING_STATUS);
hasMorePages = (status & WIA_DPS_DOCUMENT_HANDLING_STATUS.FEED_READY) != 0;
Logger.Log("ADF has more pages: " + (hasMorePages ? "Yes" : "No"));
}
catch { }
}
}
catch (System.Runtime.InteropServices.COMException ex)
{
switch ((uint)ex.ErrorCode)
{
case WIA_ERRORS.WIA_ERROR_PAPER_EMPTY:
Logger.Log("Paper feed empty");
if (images.Count == 0 && settings.adf && settings.tryFlatbed)
{ //if no page scanned try try flatbed
settings.adf = false;
}
else
hasMorePages = false;
break;
case WIA_ERRORS.WIA_ERROR_PAPER_JAM:
Program.ShowError("Paper jam inside the scanner feeder");
break;
case WIA_ERRORS.WIA_ERROR_BUSY:
Logger.Log("Device is busy, retrying in 2s...");
System.Threading.Thread.Sleep(2000);
break;
default:
throw ex;
}
}
}
device = null;
return images;
}
/// <summary>
/// Use scanner to scan an image (scanner is selected by its unique id).
/// </summary>
/// <param name="scannerId"></param>
/// <returns>List of scanned images.</returns>
private static List<Image> Acquire(Device device, ScanSettings settings)
{
String description = device.Properties["Name"].get_Value().ToString();
if (description.ToLower().Contains("brother") || description.Contains("Canon MF4500"))
{
Logger.Log("Starting acquisition (Brother)");
return AcquireBrother(device, settings);
}
else
{
Logger.Log("Starting acquisition (Normal)");
return AcquireNormal(device, settings);
}
}
