# C, C++ codes in rails applications?

**URL:** <https://www.ruby-forum.com/t/c-c-codes-in-rails-applications/134369>\
**Category:** Rails\
**Created:** [April 10, 2008, 9:05am UTC](https://www.ruby-forum.com/t/c-c-codes-in-rails-applications/134369 "2008-04-10T09:05:14Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ratnavel](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/6f9a4e/32.png) [@ratnavel](https://www.ruby-forum.com/u/ratnavel)\
**Post date:** [April 10, 2008, 9:05am UTC](https://www.ruby-forum.com/t/c-c-codes-in-rails-applications/134369/1 "2008-04-10T09:05:14Z")

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Hi,

I need to use some C,C++ codes in my rails controller. How to do this.

I have a requirement to integrate a scanner or any twain compliant  
device to my application.

For this i found some dll’s and twain.h file…

I added that twain.h file to my project root folder

Now i need to access some methods of that file… is there any way…

Thanks,  
Ratnavel

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<div class="post-metadata">

**Author:** ![ratnavel](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/6f9a4e/32.png) [@ratnavel](https://www.ruby-forum.com/u/ratnavel)\
**Post date:** [April 10, 2008, 9:27am UTC](https://www.ruby-forum.com/t/c-c-codes-in-rails-applications/134369/2 "2008-04-10T09:27:17Z")

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Ratnavel S. wrote:

> Now i need to access some methods of that file… is there any way…

Don’t mean to sound like a broken record, but like i said last time  
you posted this question, you had some helpful answers on your other  
post at [How to access a dll file? - Ruby - Ruby-Forum](http://www.ruby-forum.com/topic/148554#new)

Fred