WIA + Windows 7 + Network Scanner (WSD Device)

[EDN Admin]

Hello everyone. Is there some documentation or sample code how to get all scans from network scanner with feeder (and duplex)?
Here is my code:
<pre class="prettyprint WIA.CommonDialog WiaCommonDialog = new WIA.CommonDialog();

try
{
do
{
//Connect to Device
Device wia = Connect();
WIA.Item item = wia.Items[1] as WIA.Item;

//Setup ADF
if ((useAdf) || (duplex))
SetupADF(wia, duplex);

//Setup Page Size
SetupPageSize(wia, rotatePage, pageSize, DPI, item);

WIA.ImageFile imgFile = null;
WIA.ImageFile imgFile_duplex = null; //if duplex is setup, this will be back page

imgFile = (ImageFile)WiaCommonDialog.ShowTransfer(item, wiaFormatJPEG, false);

//If duplex page, get back page now.
if (duplex)
{
imgFile_duplex = (ImageFile)WiaCommonDialog.ShowTransfer(item, wiaFormatJPEG, false);
}

string varImageFileName = filepath + "\Scanned-" + pages.ToString() + ".jpg";
Delete_File(varImageFileName); //if file already exists. delete it.
imgFile.SaveFile(varImageFileName);

string varImageFileName_duplex;

if (duplex)
{
varImageFileName_duplex = filepath + "\Scanned-" + pages++.ToString() + ".jpg";
Delete_File(varImageFileName_duplex); //if file already exists. delete it.
imgFile_duplex.SaveFile(varImageFileName);
}

//Check with scanner to see if there are more pages.
if (useAdf || duplex)
{
hasMorePages = HasMorePages(wia);
pages++;
}

}
while (hasMorePages);
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message);
}[/code]
SetupADF Code :
<pre class="prettyprint private void SetupADF(Device wia, bool duplex)
{
foreach (WIA.Property deviceProperty in wia.Properties)
{
if (deviceProperty.Name == "Document Handling Select") //or PropertyID == 3088
{
int value = duplex ? 0x004 : 0x001;
deviceProperty.set_Value(value);
}

}

}[/code]
<br/>
HasMorePages Code:
<pre class="prettyprint private bool HasMorePages(Device wia)
{

//determine if there are any more pages waiting
Property documentHandlingSelect = null;
Property documentHandlingStatus = null;

foreach (Property prop in wia.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;
}

if ((Convert.ToUInt32(documentHandlingSelect.get_Value()) & 0x00000001) != 0)
{
return ((Convert.ToUInt32(documentHandlingStatus.get_Value()) & 0x00000001) != 0);
}

return false;

}[/code]
<br/>
All what i get is one page and exception. Scanner continues to scan. HasMorePages works fine, but i dont understand how to get other images?
Using windows device panel - all works: i can select simple scan, feeder, feeder with duplex and windows get all the pages.

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