GdPicture Imaging Forums

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

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

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

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

Hi Loic,

Thanks again for your response.

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

Could you please help.

Thanks,
Leena

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

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