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How to work with drivers

Posted on 2006-03-26
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Hi, I have been wondering how software houses create programs that can communicate with drivers in windows. Like a hardware that can take pictures, we can create a program that can ask the hardware to take pictures in different time intervals, change settings for it etc.  
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Question by:jaxrpc
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Fernando Soto earned 2000 total points
ID: 16293920
Hi jaxrpc;

The hardware manufacture develops the driver that will interface to its hardware. When they do this they implement such functions, from your example, to take pictures in different time intervals, change settings for it etc. Sometimes the manufacture will publish the function calls and sometimes they do not. The drivers are written in C / C++ and they will provide a C header file defining any data structures and function call that they will allow you to use.

I hope that this has answered you question.

Fernando
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by:jaxrpc
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What if they do not publish the function calls....how to work around it?
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by:Fernando Soto
ID: 16293982
It's called reveres engineering of the driver program. You could attempt to contact the company and see if they have published these function calls.
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by:jaxrpc
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I see...thanks for the answer.....
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