Virtual WebCam Driver

I want to build a virtual webcam driver.
Like a WebCam, but that capture screenshots...

I tried to make it basing no videocap sample that comes in WINDDK
[last version], but I didn't get sucess, because I don't know how to
communicate user-mode and kernel-mode.

Well, my question is:
Is it possible to make such driver only in USER-MODE? I want to
prevent kernel-mode...
How do I do that?
anybody has examples?

Thank you!

user mode driver kit

what kind of problem are you having and what are you trying to solve? Just
capture screen shots and send them somewhere or ....

More details on what your trynig to accomplish will help readers in this
group

"Wagner" <wagner.patriota DeleteThis @gmail.com> wrote in message
news:1185115241.797842.230570@g4g2000hsf.googlegroups.com...
>I want to build a virtual webcam driver.
> Like a WebCam, but that capture screenshots...
>
> I tried to make it basing no videocap sample that comes in WINDDK
> [last version], but I didn't get sucess, because I don't know how to
> communicate user-mode and kernel-mode.
>
> Well, my question is:
> Is it possible to make such driver only in USER-MODE? I want to
> prevent kernel-mode...
> How do I do that?
> anybody has examples?
>
> Thank you!
>