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Multi Page scan Cancel Started by Prabhu at 07-25-2007 10:44. Topic has 6 replies. LEAD Support Fo... » Developer » Scanning/Captur... » Multi Page scan Cancel

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07-25-2007, 10:44 Prabhu Joined on 07-25-2007 Posts 4 Multi Page scan Cancel I am using the leadtools for .NET and i have an autofeeding scanner. I start a scan using the twainsession.AcquireFast method and check the page in the AcquireMultiPage event. Based on what I find out about that page, I want to be able to continue scanning the rest of the pages in the hopper or cancel the scan completely. I know how to continue, but how do I cause the current scan to cancel? Thanks    Report

07-27-2007, 10:44 GregR Joined on 05-31-2006 In House Posts 1,717 Re: Multi Page scan Cancel Set the TwainAcquireMultiPageEventArgs.Cancel property to true. Greg Ross LEADTOOLS Technical Support    Report

06-10-2008, 6:19 pmarazzi@mutuionline.it Joined on 11-29-2004 Posts 20 Re: Multi Page scan Cancel ok but the feeder eat the second sheet and stops at half of the sheet. Is possible to acquire only 1 sheet in the feeder? I know at the beginning that surely I need to scan only one sheet. Basically, someone could tell me the sequence of instructions to acquire only 1 sheet from the ADF and leave the next sheets in the tray without eating the second one? Thanks    Report

06-10-2008, 6:32 pmarazzi@mutuionline.it Joined on 11-29-2004 Posts 20 Re: Multi Page scan Cancel I've tried doing this but it still doesn't work, the feeder eats all the sheets. ( I've set twnSession.MaxXferCount=1 ) "To control the number of pages, try to set the value of the twnSession.MaxXferCount Property before calling twnSession.Acquire. Most Twain drivers accept a value of -1 to indicate scanning all available sheets from the feeder."    Report

06-10-2008, 10:06 GregR Joined on 05-31-2006 In House Posts 1,717 Re: Multi Page scan Cancel As for the page scanning half way and then stopping, and for the TwainSession.MaxXferCount not working, this is likely a driver issue.  Try setting CAP_AUTOFEED to false by using SetCapability. Greg Ross LEADTOOLS Technical Support    Report

06-10-2008, 12:23 pmarazzi@mutuionline.it Joined on 11-29-2004 Posts 20 Re: Multi Page scan Cancel it still take the next pages. I've tried also setting CAP_AUTOSCAN to false but it didn't work. The scanner model is HP Scanjet 5590.    Report

06-10-2008, 16:18 GregR Joined on 05-31-2006 In House Posts 1,717 Re: Multi Page scan Cancel Does this occur with all scanners or only some? Also, what is the file version of Leadtools.dll that you are using? Greg Ross LEADTOOLS Technical Support    Report

LEAD Support Fo... » Developer » Scanning/Captur... » Multi Page scan Cancel

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