How can I detect if the webcam is active

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Ray - 28 Oct 2004 17:01 GMT

is there a way I can detect if the web cam is in use?
I have VB6

I am unable to get the WM_CAP_GET_STATUS to work.

I can get the WM_CAP_DRIVER_CONNECT to return a True/False but this brings
up a Video Source window if False, I just want I just want the value (T/F)

Thanks
Ray

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Ray - 28 Oct 2004 17:04 GMT

I want to check if the webcam is active on a remote computer...

Thanks
Ray..

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CajunCoiler (http://www.cajuncoiler.tk) - 28 Oct 2004 21:48 GMT

You could try sampling it's output in server mode. I would imagine that
would generate
a trappable error if it's not running, at which point, server informs client
of status.

> is there a way I can detect if the web cam is in use?
> I have VB6
[quoted text clipped - 6 lines]
> Thanks
> Ray

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Ray - 29 Oct 2004 05:26 GMT

I not sure how to use server/client at this time..I was hoping for something
simple...

Ray

> You could try sampling it's output in server mode. I would imagine that
> would generate
[quoted text clipped - 11 lines]
> > Thanks
> > Ray

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CajunCoiler (http://www.cajuncoiler.tk) - 29 Oct 2004 16:53 GMT

Ok, if you want simple, this may take longer, but
try it... download the current image, wait the
webcam's refresh time, and download another.
Then compare the two images. If they've changed,
the cam is running... if not, it's off.

Example:
If Image1.Picture = Image2.Picture Then
Debug.Print "Cam is off"
Else
Debug.Print "Cam is on"
End If

> I not sure how to use server/client at this time..I was hoping for something
> simple...
[quoted text clipped - 19 lines]
> > > Thanks
> > > Ray

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Ray - 30 Oct 2004 18:04 GMT

Hi CajunCoiler,

I tried your suggestion with no luck

I am unable to download the image without connecting to the device first.

Thanks

Ray

> Ok, if you want simple, this may take longer, but
> try it... download the current image, wait the
[quoted text clipped - 33 lines]
> > > > Thanks
> > > > Ray

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CajunCoiler (http://www.cajuncoiler.tk) - 30 Oct 2004 19:11 GMT

Then you must be referring to a webcam in the videoconferencing sense.
A standard webcam posts images to a file every X seconds.
In such case, you will be stuck with the server/client scenario.

> Hi CajunCoiler,
>
[quoted text clipped - 44 lines]
> > > > > Thanks
> > > > > Ray

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VB Forum / General 2 / October 2004

How can I detect if the webcam is active