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From: "Majo " <kosmodisk@post.sk>
Newsgroups: comp.soft-sys.matlab
Subject: imaqhwinfo cannot recognize USB webcam
Date: Wed, 6 Feb 2008 11:11:13 +0000 (UTC)
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(please appologise my english)

Hi,        
I'm trying to use my USB webcam in Matlab/Image Acquisition 
Toolbox. 
The webcam works with AMcap.exe utillity, so I was hoping 
it will also work in Matlab.
But when I use command "imaqhwinfo('winvideo')" I get this 
message:

-------
AdaptorDllName: 'C:\Program 
Files\MATLAB\R2007a\toolbox\imaq\imaqadaptors\win32\mwwinvideoimaq.dll'
AdaptorDllVersion: '2.1 (R2007a)'
AdaptorName: 'winvideo'
DeviceIDs: {1x0 cell}
DeviceInfo: [1x0 struct]
-------

"DeviceIDs" and "DeviceInfo" are empty. And after typing 
"vid = videoinput('winvideo')" an error occured

-------
??? Error using ==> videoinput.videoinput at 233
There are no devices installed for the specified 
ADAPTORNAME. See IMAQHWINFO.
-------

Is my webcam using another adaptor? 
(InstalledAdaptors: {'coreco'  'demo'  'winvideo'})

Is it possible that the webcam would by useless in Matlab 
even if it works with AMcap utillity? (in accordance with 
http://www.mathworks.com/products/imaq/
supportedio13875.html)

Thank you for any answer. Have a nice day.