How to release the occupied USB ports programatically...?

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Hi friends,
I m working on one OCR Machine, i implemented it into my project.
Its working fine at first execution. Its read all the data correctly. But, when I tried it 2nd time, it is not working..

What will the problem..?
In sdk, there were stopRead() & Terminate().
Even I called both the functions as I finish the reading.

Thank you in advance.

Posted 1-Mar-12 19:56pm

Yogesh Sonar

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Aniket Yadav · Answer 1 · 2012-03-01T20:23:00

Solution 2

Check this links from codeproject

Eject USB disks using C#[^]

Detecting USB Drive Removal in a C# Program[^]

http://www.developerfusion.com/article/84338/making-usb-c-friendly/[^]

Hope they will help you

Posted 1-Mar-12 20:23pm

Aniket Yadav

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Maciej Los 3-Mar-12 13:14pm

Very good answer. My 5!

walterhevedeich · Answer 2 · 2012-03-01T20:08:00

Solution 1

Saying it is not working is not enough. You need to post the error messages as well. In addition, you also need to provide other details of what OCR machine and SDK you are working on. Anyway, even if you have posted it, its not a guarantee that your question will be answered right away because not many people may know about that SDK. If you have a website of the developers of the SDK, I suggest you contact them as well through their support page together with the details of your issue.

Posted 1-Mar-12 20:08pm

walterhevedeich

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Yogesh Sonar 2-Mar-12 2:15am

Thanx for the replay,
Sir, there is no any error message displays.

I tried to contact to the manufactured company of that device, but on website there is not any support or forums are there.

They provide the 3 dll files, in that all these functions are defined. But how to trace those function..?

In sdk, they provide only one pdf file, in which they just describe about the function i.e. terminate() will de-alocate the reader device, stopread() will stop the reading activity etc.

walterhevedeich 2-Mar-12 3:22am

We can probably help if you can click on Improve Question and post the error message that you are getting.