writing video filter driver?

NTDEV
1

hi all,

I need to control open access of webcam from desktop applications at driver level.
which kind of driver i should write?
and please provide some references.

thanks

2

xxxxx@gmail.com wrote:

I need to control open access of webcam from desktop applications at driver level.
which kind of driver i should write?
and please provide some references.

You need to be a little more explicit about what you plan to do. There
are ways to do what you describe without involving a driver at all.

–
Tim Roberts, xxxxx@probo.com
Providenza & Boekelheide, Inc.

3

Thanks,

I need a simple callback msg that some user application is trying to access webcam, at that point
i must be able to control allow or deny access (according to user input) to a webcam from that same user application.

4

xxxxx@gmail.com wrote:

I need a simple callback msg that some user application is trying to access webcam, at that point
i must be able to control allow or deny access (according to user input) to a webcam from that same user application.

Without writing any kernel code at all, you could write a tool to
“enable all cameras” and “disable all cameras”, to allow the user to
turn the objects on and off.

You can certainly install a class upper filter driver for the Images
install class. You would have to figure out how to register your
controlling application with this driver. And, of course, you’re
assuming that those capture applications will all wait for your approval
process.

–
Tim Roberts, xxxxx@probo.com
Providenza & Boekelheide, Inc.