Search found 4 matches

by derek_k
Wed Jun 01, 2011 2:18 am
Forum: VintaSoft Twain .NET SDK Discussions
Topic: XferCount property not working
Replies: 3
Views: 8194

Re: XferCount property not working

Hi Alex, The problem is, whenever we try to disable the document feeder we get an exception: if (_device.FeederPresent) { _device.XferCount = 1; _device.DocumentFeeder.Enabled = false; // Vintasoft.Twain.TwainDeviceCapabilityException: Cannot set value of capability. } Again, this is on the HP 5000 ...
by derek_k
Fri May 27, 2011 2:33 am
Forum: VintaSoft Twain .NET SDK Discussions
Topic: XferCount property not working
Replies: 3
Views: 8194

XferCount property not working

I'm not sure when this stopped working (it did work at some point - maybe in version 6), but the XferCount property is no longer working. The scanner is always scanning ALL pages that are loaded, even though we only want to scan 1 document by setting the XferCount property = 1. This is happening wit...
by derek_k
Tue Jun 15, 2010 11:53 pm
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Error at opening the Data Source
Replies: 1
Views: 5577

Error at opening the Data Source

I've got a persistent problem that is happening on all my deployments (5 or 6) - random exceptions when attempting a scan: Vintasoft.Twain.TwainException: Error at opening the Data Source. at Vintasoft.Twain.VSTwain.OpenDataSource() I haven't been able to reproduce the problem, but it typically happ...
by derek_k
Wed May 12, 2010 2:16 am
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Duplex scanning not available
Replies: 1
Views: 5110

Duplex scanning not available

I can't seem to get duplex scanning working with HP Scanjet 5000 or 7000 devices. The capability is clearly there as I can do a duplex scan from the Windows image acquisition tool, but the VSTwain.Duplex property is always DuplexMode.None (using either the WIA or TWAIN device).

Any ideas?