I am writing a program to work with a network scanner through WIA. Everything works fine when scanning only one page. When I turn on the feeder:
foreach (WIA.Property deviceProperty in wia.Properties)
{
if (deviceProperty.Name == "Document Handling Select")
{
int value = duplex ? 0x004 : 0x001;
deviceProperty.set_Value(value);
}
}
the program receives a scan, the signal that there are still documents in the feeder and falls off with com error (scanner continues to scan). Here's the code check the pages in the feeder:
//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;
Getting the picture code:
imgFile = (ImageFile)WiaCommonDialog.ShowTransfer(item, wiaFormatJPEG, false);
Unfortunately could not find an example of using WIA WSD. Perhaps there are some settings to get multiple images through WSD.