private void InitializeWia()
{
if (_mySettings._settings.wiaVersion == 0)
{
return;
}
_wiaVersion = (WiaVersion)_mySettings._settings.wiaVersion;
_wiaAvailable = WiaSession.IsAvailable(_wiaVersion);
if (_wiaAvailable)
{
_wiaSession = new WiaSession();
_wiaSession.Startup(_wiaVersion);
_miWiaSelectSource.Enabled = true;
// Set the default acquire path for file transfer to My Documents folder.
string myDocumentsPath;
HelperFunctions.GetFormatFilterAndExtension();
myDocumentsPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
_wiaAcquireOptions.FileName = string.Format("{0}{1}{2}", myDocumentsPath, "\\WiaTest.", HelperFunctions.Extension);
if (_wiaProperties.DataTransfer.TransferMode == WiaTransferMode.None) // GetProperties() method not called yet.
{
_wiatransferMode = WiaTransferMode.Memory;
}
else
{
_wiatransferMode = _wiaProperties.DataTransfer.TransferMode;
}
_wiaSession.AcquireEvent += new EventHandler <WiaAcquireEventArgs>(_wiaSession_AcquireEvent);
}
else
{
_miWiaSelectSource.Enabled = false;
}
_wiaerrorList = new ArrayList();
_enumeratedItemsList = new ArrayList();
_capabilitiesList = new ArrayList();
_formatsList = new ArrayList();
_flagValuesStrings = new ArrayList();
_wiaSourceSelected = _mySettings._settings.wiaSelectedDevice != null;
if (_wiaSourceSelected)
{
try
{
_wiaSession.SelectDevice(_mySettings._settings.wiaSelectedDevice);
}
catch
{
_wiaSourceSelected = false;
}
}
}
void _wiaSession_EnumFormatsEvent(object sender, Leadtools.Wia.WiaEnumFormatsEventArgs e)
{
if (e.FormatsCount > 0)
{
MyFormat myFormat = MyFormat.Empty;
myFormat.Format = WiaSession.GetFormatGuid(e.Format);
myFormat.FormatCLSID = myFormat.Format.ToString();
myFormat.FormatName = e.Format.ToString();
myFormat.TransferMode = e.TransferMode;
myFormat.TransferModeString = e.TransferMode.ToString();
FrmMain._formatsList.Add(myFormat);
}
}
public static int GetFormatNameString(System.Guid guidFormat)
{
foreach (WiaSupportedFormatsInfo i in _wiaFormatsInfo)
{
Guid formatGuid = WiaSession.GetFormatGuid(i.Format);
if (formatGuid == guidFormat)
{
_formatName = i.Format.ToString();
return(1);
}
}
return(0);
}
public static void FindRelevantPropName(WiaPropertyId propertyId, object value)
{
if (propertyId == WiaPropertyId.ScannerDeviceDocumentHandlingSelect)
{
UInt32 val = Convert.ToUInt32(value);
if ((val & (int)WiaScanningModeFlags.Feeder) == (int)WiaScanningModeFlags.Feeder ||
(val & (int)WiaScanningModeFlags.Flatbed) == (int)WiaScanningModeFlags.Flatbed)
{
_propertyName = "Paper Source";
}
}
else
{
_propertyName = WiaSession.GetPropertyIdString(propertyId);
}
}
public static int GetFormatNameString(System.Guid guidFormat)
{
foreach (WiaSupportedFormatsInfo i in _wiaFormatsInfo)
{
Guid formatGuid = Guid.Empty;
#if !LEADTOOLS_V17_OR_LATER
WiaSession.GetFormatGuid(i.Format);
formatGuid = WiaSession.FormatGuid;
#else
formatGuid = WiaSession.GetFormatGuid(i.Format);
#endif //#if !LEADTOOLS_V17_OR_LATER
if (formatGuid == guidFormat)
{
_formatName = i.Format.ToString();
return(1);
}
}
return(0);
}
private void MainForm_Load(object sender, System.EventArgs e)
{
// initialize the codecs object
_codecs = new RasterCodecs();
_wiaAvailable = WiaSession.IsAvailable(_wiaVersion);
if (_wiaAvailable)
{
_wiaSession = new WiaSession();
_wiaSession.Startup(_wiaVersion);
_miWiaSelectSource.Enabled = true;
// Set the default acquire path for file transfer to My Documents folder.
string myDocumentsPath;
HelperFunctions.GetFormatFilterAndExtension();
myDocumentsPath = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
_wiaAcquireOptions.FileName = string.Format("{0}{1}{2}", myDocumentsPath, "\\" + DemosGlobalization.GetResxString(GetType(), "Resx_WiaTest") + ".", HelperFunctions.Extension);
if (_wiaProperties.DataTransfer.TransferMode == WiaTransferMode.None) // GetProperties() method not called yet.
{
_transferMode = WiaTransferMode.Memory;
}
else
{
_transferMode = _wiaProperties.DataTransfer.TransferMode;
}
_wiaSession.AcquireEvent += new EventHandler <WiaAcquireEventArgs>(_wiaSession_AcquireEvent);
}
else
{
_miWiaSelectSource.Enabled = false;
}
EnableMenuItems(false);
_errorList = new ArrayList();
_capabilitiesList = new ArrayList();
_formatsList = new ArrayList();
_flagValuesStrings = new ArrayList();
}
void _wiaSession_EnumFormatsEvent(object sender, Leadtools.Wia.WiaEnumFormatsEventArgs e)
{
if (e.FormatsCount > 0)
{
MyFormat myFormat = MyFormat.Empty;
#if !LEADTOOLS_V17_OR_LATER
WiaSession.GetFormatGuid(e.Format);
myFormat.Format = WiaSession.FormatGuid;
myFormat.FormatCLSID = WiaSession.FormatGuid.ToString();
#else
myFormat.Format = WiaSession.GetFormatGuid(e.Format);
myFormat.FormatCLSID = myFormat.Format.ToString();
#endif //#if !LEADTOOLS_V17_OR_LATER
myFormat.FormatName = e.Format.ToString();
myFormat.TransferMode = e.TransferMode;
myFormat.TransferModeString = e.TransferMode.ToString();
MainForm._formatsList.Add(myFormat);
}
}
private DialogResult SelectAcquireSource()
{
if (_wiaSession.SelectedDeviceType == WiaDeviceType.Scanner)
{
Object rootItem = _wiaSession.GetRootItem(null);
if (_wiaVersion == WiaVersion.Version1)
{
int longValue = _wiaSession.GetPropertyLong(rootItem, null, WiaPropertyId.ScannerDeviceDocumentHandlingCapabilities);
if (((longValue & (int)WiaDocumentHandlingCapabilitiesFlags.Feeder) == (int)WiaDocumentHandlingCapabilitiesFlags.Feeder) &&
((longValue & (int)WiaDocumentHandlingCapabilitiesFlags.Flatbed) == (int)WiaDocumentHandlingCapabilitiesFlags.Flatbed)) // scanner with multiple sources.
{
using (AcquireSourceForm AcquireSourceDlg = new AcquireSourceForm())
{
if (AcquireSourceDlg.ShowDialog() != DialogResult.OK)
{
return(DialogResult.Cancel);
}
}
if (_acquireFromFeeder)
{
longValue = (int)WiaScanningModeFlags.Feeder;
}
else
{
longValue = (int)WiaScanningModeFlags.Flatbed;
}
_wiaSession.SetPropertyLong(rootItem, null, WiaPropertyId.ScannerDeviceDocumentHandlingSelect, longValue);
}
}
else
{
// Enable the enumerate items event.
_wiaSession.EnumItemsEvent += new EventHandler <WiaEnumItemsEventArgs>(_wiaSession_EnumItemsEvent);
_wiaSession.EnumChildItems(rootItem);
// Disable the enumerate items event.
_wiaSession.EnumItemsEvent -= new EventHandler <WiaEnumItemsEventArgs>(_wiaSession_EnumItemsEvent);
if (_enumeratedItemsList.Count > 1) // scanner with multiple sources.
{
using (AcquireSourceForm AcquireSourceDlg = new AcquireSourceForm())
{
if (AcquireSourceDlg.ShowDialog() != DialogResult.OK)
{
_enumeratedItemsList.Clear();
return(DialogResult.Cancel);
}
}
if (_acquireFromFeeder)
{
foreach (object item in _enumeratedItemsList)
{
Guid guidCategory = FrmMain._wiaSession.GetPropertyGuid(item, null, WiaPropertyId.ItemCategory);
Guid guidValue = WiaSession.GetCategoryGuid(WiaCategories.Feeder);
if (guidValue == guidCategory)
{
_sourceItem = item;
break;
}
guidValue = WiaSession.GetCategoryGuid(WiaCategories.FeederBack);
if (guidValue == guidCategory)
{
_sourceItem = item;
break;
}
guidValue = WiaSession.GetCategoryGuid(WiaCategories.FeederFront);
if (guidValue == guidCategory)
{
_sourceItem = item;
break;
}
}
}
else
{
foreach (object item in _enumeratedItemsList)
{
Guid guidValue = FrmMain._wiaSession.GetPropertyGuid(item, null, WiaPropertyId.ItemCategory);
Guid guidCategory = WiaSession.GetCategoryGuid(WiaCategories.Flatbed);
if (guidValue == guidCategory)
{
_sourceItem = item;
break;
}
}
}
if (_enumeratedItemsList.Count > 0)
{
_enumeratedItemsList.Clear();
}
}
}
}
return(DialogResult.OK);
}
