Question : Problem: C++ access to windows webcam motion control driver

I am trying to control the motion of my sweex motion cam WC040. Sweex provides not support for this. So I started reading about COM programming and interacting with windows drivers. I found that the c:\windows\system32\drivers\Capt930b.sys is responsable for this webcam. I suppoe it must be possible to send a message to this driver so that windows moves the motion camera.

Where can I start? How does this work in C++? How do I find the list of messages that this driver accepts?

Answer : Problem: C++ access to windows webcam motion control driver

Without knowing the IOCTL codes and the corresponding buffer parameters , it will be impossible to talk to the driver, sorry...