Error occurred during acquisition status 30

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okinfo
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Joined: Thu Jul 26, 2012 4:00 pm

Error occurred during acquisition status 30

Post by okinfo » Thu Jul 26, 2012 4:20 pm

Hi Loic,

I have been trying the ASP.NET annotation demo and it is looking great!

I am facing one issue. Here are the steps to reproduce:
1. I click on "Acquire From TWAIN" menu
2. Then I select my web cam as the source and click "Select"
3. It then shows me the "Web cam Capture" window.
4. Here, if I click "Cancel", it shows me an error with below mentioned text:
"Error occurred during acquisition status 30 "

Could you please help

Regards
Leena

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Loïc
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Re: Error occurred during acquisition status 30

Post by Loïc » Thu Jul 26, 2012 5:02 pm

Hello,

Just modify the application code source to don't display the message. Or adjust the error message regarding the returned value of TwainUserClosedSource() & TwainLastXferFail() methods.

Hope this helps!

Kind regards,

Loïc

okinfo
Posts: 4
Joined: Thu Jul 26, 2012 4:00 pm

Re: Error occurred during acquisition status 30

Post by okinfo » Fri Jul 27, 2012 2:18 pm

Thanks for the quick response.
I can hide the message but once this error comes, I have to restart the browser. So is there better way to handle this or do you sample code demonstrating usage of the methods you have mentioned.

Thanks,
Leena

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Loïc
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Re: Error occurred during acquisition status 30

Post by Loïc » Fri Jul 27, 2012 2:41 pm

Hello,

Are you using the latest version ?

You should also add a call to TwainUnloadSourceManager_2 (0) to close the twain manager. We will add it in the next demo app.

Kind regards,

Loïc

okinfo
Posts: 4
Joined: Thu Jul 26, 2012 4:00 pm

Re: Error occurred during acquisition status 30

Post by okinfo » Fri Aug 03, 2012 4:39 pm

Hi Loic,

Thanks again for your response.

I tried a call to "TwainUnloadSourceManager_2 (0)" but no luck.

Could you please help.

Thanks,
Leena

okinfo
Posts: 4
Joined: Thu Jul 26, 2012 4:00 pm

Re: Error occurred during acquisition status 30

Post by okinfo » Sun Aug 12, 2012 6:52 pm

Hi Loic,

I have a question related to TWAIN acquisition using ASP.NET.
In your demo (GdPicture.NET 8\samples\AnyCPU\asp.net\annotation), if I scan a image and then again scan one more image, the earlier image gets overwritten.

Is there a way to append to the existing image?

Thanks,
Leena

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Loïc
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Re: Error occurred during acquisition status 30

Post by Loïc » Mon Aug 20, 2012 11:39 pm

Hello Leena,

Sorry for the delayed answer.

Please try to create a standalone ticket for any new issue. This will help us to provide more efficient support and to have a clearer knowledge base.

Thank you for your comprehension.

Kind regards,

Loïc

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