Forums › TWAIN Classic › Scanner starts transfer when console gets closed (CITRIX)
Hi, we compiled & published the sample console (https://github.com/soukoku/ntwain/tree/v3/samples) from CITRIX environment. Did not get any errors but scanning is not happening but the scanner is pulling the paper when the console gets closed. Does anyone have any idea on this. But this is working fine from local machine.
Sorry, there are too many moving parts to be able to offer much help.
The TWAIN Working Group has no connection to that sample code, so the problem may be there. It’s also possible that the scanner driver is an issue, it may help to try a different scanner to see if the problem reproduces.
As for paper being pulled when the scanner closes, you may want to investigate if the MSG_XFERREADY message is being properly delivered. Again, this will likely depend on the specific scanner driver being used.
Finally, Citrix has two modes: the old mode used a driver proxy that marshalled commands across the network, the newer mode creates a USB connection across the network. You’ll want to understand which mode is is use as you investigate. You should also contact the scanner vendor to confirm that their scanner supports what is being attempted.
Thank you for sharing the details. If it is an issue with driver or scanner means it should not work with any other application. But we are able to scan it through Twacker (32 bit) application (CITRIX). So what would be difference between console application and Twacker (32 bit) application.