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T O P I C R E V I E W
brandonbrown	Posted - Dec 29 2021 : 11:44:55 This was really weird and I'm not sure what to do exactly. I am getting an Unhandled Exception in the debug (or actually the EXE also) of a longtime working app all of a sudden when doing this call on the form startup: If (multiScan.ImageList.TWainParams.Sources().Count < 1) Then <or> multiScan.ImageList.TWainParams.SelectSourceByName(strScanner) I put in some test code to create a multi object before that with no issue: Dim multi As New HiComponents.IEvolution.IEMulti multi.ImageList.LoadImages("C:\test\test.tif") multi.Dispose() The exact error, which doesn't give much detail is: System.AccessViolationException: 'Attempted to read or write protected memory. This is often an indication that other memory is corrupt.' No other details here. I reinstalled IEvolution, removed the iecore.dll from SYSWOW64 and System32. I don't remember putting them there? Older versions of the build EXE work fine so I don't think the TWAIN libraries are corrupt. Other scanning apps work fine. Suggestions?
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xequte	Posted - Jan 01 2022 : 14:11:20 Hi Are any of these invalid at the time of your call? multiScan ImageList TwainParams Sources? If you delay the call (e.g. till the form is shown) do you still get the error? Nigel Xequte Software www.imageen.com