Search found 5 matches

by Aaron Jones
Wed Oct 26, 2011 8:44 pm
Forum: VintaSoft Twain .NET SDK Discussions
Topic: Auto-detection Page Size Access Violation
Replies: 2
Views: 8021

Auto-detection Page Size Access Violation

When I scan a page using Page size auto detection, an AccessViolationException occurs after the scanner completes scanning the page. This happens with both Acquire and AcquireModal functions. I've made sure that I have the most recent scanner drivers for the scanners I am using. This happens with bo...
by Aaron Jones
Tue Oct 25, 2011 4:39 pm
Forum: VintaSoft Twain .NET SDK Discussions
Topic: VSTwain Source Error
Replies: 1
Views: 6147

Re: VSTwain Source Error

This was solved by updating the scanner drivers.
by Aaron Jones
Wed Oct 19, 2011 9:28 pm
Forum: VintaSoft Twain .NET SDK Discussions
Topic: VSTwain Source Error
Replies: 1
Views: 6147

VSTwain Source Error

When calling Device.open, I get a VSTwain Source Error. "General failure in response to DAT_CAPS. Bad protocol error." The program works fine on one computer, but on the Wyse R90L7 Thin Client running Windows Embedded Standard, I get the above error. What does this error mean and how do I get around...
by Aaron Jones
Thu Sep 08, 2011 5:44 pm
Forum: VintaSoft Twain .NET SDK Discussions
Topic: AcquireModal in a Thread
Replies: 2
Views: 7358

Re: AcquireModal in a Thread

Thanks.
I moved the device.open to the thread and now all works as it should.
by Aaron Jones
Wed Sep 07, 2011 6:21 pm
Forum: VintaSoft Twain .NET SDK Discussions
Topic: AcquireModal in a Thread
Replies: 2
Views: 7358

AcquireModal in a Thread

Scanner: Canon DR-2050C OS: Windows 7 64-bit I'm currently using the evaluation version of VintaSoftTwain.NET version 8.0.0.9 I am creating a thread with an AcqiureModal loop inside of that thread. The problem is that the first call to AcquireModal runs on the main thread despite being called from i...