c# - loading VECTORPOLYLINE
Started by Smoke at 08-15-2008 3:59. Topic has 9 replies.
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 08-15-2008, 3:59
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Smoke
Joined on 03-23-2008
Posts 15
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Hi,
I have problems how to load VECTORPOLYLINE from c#. It works for me for all types of objects, except VECTORPOLYLINE. In this case I'm still receiving "AccessViolationException". I don't have any clue why, because VECTORPOLYLINE structure is pretty simple.
I attach my testing project with my testing file. I would very appreciate if you could point me what I'm doing wrong. I use LeadTools v15.
Thanks in advance for your help.
Smoke
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08-18-2008, 16:32
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jigar
 
Joined on 08-22-2007
Posts 480
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Re: c# - loading VECTORPOLYLINE
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I'm getting the same error. I'm still debugging it to figure out what is going on.
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08-20-2008, 18:02
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jigar
Joined on 08-22-2007
Posts 480
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Re: c# - loading VECTORPOLYLINE
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After trying a lot of things, I've come to the conclusion that it has to do with the VECTORPEN structure. The VECTORPEN struct is nested; it has a union inside it. In C# a union is treated as a struct with the explicit layout flag, but that still doesn't work. I use P/Invoke utility to generate the C# struct for it and that didn't work either. I'll confirm it with another struct that has a union in it and then maybe I can report it to the engineers.
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08-21-2008, 10:36
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Smoke
Joined on 03-23-2008
Posts 15
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Re: c# - loading VECTORPOLYLINE
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Thanks for your effort. Please, let me know when you will find the problem.
Thanks,
Smoke
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08-26-2008, 3:02
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Smoke
Joined on 03-23-2008
Posts 15
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Hi,
attached is my second test case: first attempt to load the file failed but the second attempt to load the same file is ok. Maybe there is a problem with an initialization of some internal structures?
Thanks,
Smoke
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09-03-2008, 12:19
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jigar
Joined on 08-22-2007
Posts 480
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Re: c# - loading VECTORPOLYLINE
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I'm getting something different. On the first LoadFile() call it succeeds, but on the second one I get System.ExecutionEngineException. I'm doing a windows update to make sure I have all the fixes. I'm running WinXP SP2, .NET 3.5 SP1, and VS2008 SP1.
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09-08-2008, 10:50
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Smoke
Joined on 03-23-2008
Posts 15
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Re: c# - loading VECTORPOLYLINE
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I'm running Vista SP1, VS 2008 SP1.
Do you have any advice for me, how to solve the issue? Or a workaround?
Thanks,
Smoke
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09-08-2008, 17:10
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jigar
Joined on 08-22-2007
Posts 480
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Re: c# - loading VECTORPOLYLINE
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I'm going to send this over to the engineers and see if they know of a solution. I've tried many different things but still no luck.
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09-09-2008, 10:29
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Smoke
Joined on 03-23-2008
Posts 15
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Re: c# - loading VECTORPOLYLINE
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Thanks.
We have bought license for LeadTools last week and integrated to our C# application. It is unpleasant for us that our application sometimes crashed.
Smoke
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09-12-2008, 14:52
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jigar
Joined on 08-22-2007
Posts 480
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Re: c# - loading VECTORPOLYLINE
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Yeah, I'm working on it in my free time also to see if something comes up.
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