Webcam and MATLAB

Has anyone tried to use Creative webcams with MATLAB's image acquisition toolbox? I'm using the NX Ultra webcam. I am able to get pictures and videos, but I can't seem to adjust its properties such as zoom, pan, tilt. (I am able to do that with Logitech's webcams, so I know that my method for adjusting them is correct.)
Why doesn't it work?
Thanks

hey Nambiar,
uninstall both webcam and bluetooth drivers from device manager. let windows install its generic drivers.
once done, see if you're able to use it.
WW Social Media
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Internal Webcam and Microphone not working after Screen Fix

I own a HP Envy Spectre XT Ultrabook, and last week I tried to use the webcam and the microphone for the first time in a few months.
However I was shocked to find that Skype kept saying that the webcam was not detected. The microphone also could not register any sound.
Device Manager did not show any imaging devices or the webcamera, even after setting it to view non-present devices.
A check using msinfo32 did not review the webcamera either, and there were no problem devices.
Control Panel >> Sound showed that the Internal Microphone using IDT High Definition Audio Codec was enabled and working, however it could not detect any sound. All drivers are checked to be up-to-date.
I suspect this has something to do with the screen repair last month which a HP on-site technician came down to replace my screen, although I cannot be 100% sure. Although the screen is now working, the technician did not do a good job reassembling the screen - the bottom left corner of the screen cover has not be able to attach properly to the screen.
I have gone through my BIOS setup to make sure that there is no webcam disabled.
I have tried rolling-back and reinstalling the drivers for the microphone but it did not work.
I have tried uninstalling CyberLink YouCam (laptop preinstalled webcam software).
Please help, these two components are very important to me as I am going overseas soon. The laptop is still under warranty.

Hey ajun,
Thank you very much for the information!
For troubleshooting your Webcam, I would suggest taking a look at the document Webcam Troubleshooting (Windows 7). I would suggest the two options Video does not appear in your webcam software (such as YouCam, Skype, Messenger, ect.), and Webcam is not listed in Device Manager.
For your internal microphone not working either, please take a look at the document Resolving Microphone and Line-in Problems (Windows 7). From this document, I would suggest following the top two symptoms.
Please let me know the outcome of these troubleshooting steps.
Good luck, and have a great day!
I worked on behalf of HP

How do i use my webcam and photo on my dktp4/500

is there a cd or owners manul for my dktp hp 4/500, and if so where my i get it. i need to know how to use my webcam, and photos to put them on my comp.

If you want to connect and use an iPod on more than one computer you need to change the update preference in the iPod Summary tab to "Manually manage music and videos" and click Apply. In this mode you just drag and drop whatever you want to the iPod from either library. You can also access and play the songs on the iPod through the computer in manual mode so you don't need to have the songs physically on both machines (Note: iPod shuffles are only designed to be used with a single library or computer):
Using iPod with Multiple computers
Managing content manually on iPod
iPod 101: Fill 'er Up
Note: When changing from automatic to manual, check the "manually manage music and videos" box in Summary then press the Apply button. "Don't" uncheck Sync Music in the Music tab, it will be unchecked by default when you choose the manual setting, if you uncheck it without setting the iPod to manual first you'll erase all the songs from your iPod
Something else to be aware of when using an iPod in manual mode is that the "Do Not Disconnect" message will remain on the display until you physically eject the device. In that case use Safely Remove Hardware icon in the Windows system tray on your desktop or check this link: Safely Disconnect IPod

WebCAM and Fn+F5 or F6 does not work on T430 running Windows 8.1

I recently updated to Windows 8.1. I did not check the functionality of the Fn+F5 or F6 button back then. But I did run Skype two days ago with my webcam and that worked.
Then I ran windows and Lenovo system Update and updated all drivers except the Lenove Fingerprint, SHAREIT and the latest BIOS which are marked optional.
Now, no application can access my camera and the Fn+F6 does nothing.
I did go into the Windows privacy settings. Here Skype is on. there is no way to add apps, so e.g. I cannot add Teamviewer program or the Camera app.
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I tried the Lenovo PC-Settings app. From the screenshots I think it is the old one I am getting. I can choose btw. Pointer,Wireless Power and location. Nothing about the webcam.
I tried stating it via the Lenovo Companion. Same problem.
In the process overview (Procexp from MS) I see Cammute.exe used by numerous processes
So, what can I do now to get them back?

I can't reproduce your issue. Definitely that CPU hanging is abnormal. I'd assume the cause is driver but you reinstalled that one. Perhaps some driver is located in the stack unproperly as there are too may components - system drivers, Lenovo PM driver, dependency settings, camera driver and settings, metro app... Also there is USB Composite controller the camera is attached to.
The only solution I see is ... delete everything I've mentioned above and reinstall them again using TVSU. Then install metro app.
Also in order to check USB driver influence I'd delete that driver too (delete USB composite controller in Device Manager). Reboot the system, Windows will find new component and install its driver. Do it before installation other components using TVSU.
Also try to connect USB devices (flash drives as an example) to every USB port and look at their behaviour.
x220 | i5-2520m | Intel ssd 320 series | Gobi 2000 3G GPS | WiFi
x220 | i5-2520m | hdd 320 | Intel msata ssd 310 series | 3G GPS | WiFi
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How do I record a video on my macBook Pro's webcam and upload it to YouTube?

How do I record a video on my macBook Pro's webcam and upload it to YouTube?
Many thanks.

Your posted info shows you are using Mac OS X (10.5.8). With this Mac OS, you can use iMovie, Photo Booth, or optional QuickTime 7 Pro to record and save a QuickTime video. (Be sure to save in a YouTube Supported file format.)
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Message was edited by: EZ Jim
Mac OSX 10.8.4

Webcam and bluetooth not working in my G570 on Win7 ultimate

Webcam and bluetooth not working in my G570 on Win7 ultimate.Reinstalled the drivers.No avail.Web cam icon is not visible anywhere in the system.Only proof i have is there is a cam looking at me on the lid on top.Tried Fn+esc .did not work.Please help.......

hey Nambiar,
uninstall both webcam and bluetooth drivers from device manager. let windows install its generic drivers.
once done, see if you're able to use it.
WW Social Media
Important Note: If you need help, post your question in the forum, and include your system type, model number and OS. Do not post your serial number.
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!
Follow @LenovoForums on Twitter!
Have you checked out the Community Knowledgebase yet?!
How to send a private message? --> Check out this article.

I want to connect a logitech webcam and make it my default cam

i want to connect a logitech webcam and make it my default cam

Hello
Page 91 of the English PDF User's Guide we may read:
+• To paste a copy of a formula in a different cell and use the same cell references in both+
+formulas, place a dollar sign ($) in front of column and row identifiers (=$A$1). This+
+technique creates what’s called an absolute cell reference.+
+For example, if the formula =A1 appears in cell D1 and you want to paste a copy of the+
+formula in cell E1, change the formula to =$A$1, select D1, copy it, and paste the copy+
+into E1. The formula $A$1 is copied into cell E1. If you didn’t change the formula to use+
+an absolute cell reference the formula in E1 would be =B1.+
This is a very old scheme and the User's guide is not complete
We may use two other kind of cells reference:
=$A1
the column would be fixed but the row num would adjust
=A$1
the row num would be fixed but the column would adjust
Yvan KOENIG (from FRANCE mardi 15 janvier 2008 08:52:47)

Uninstalling Touchsmart--will webcam and dvd player still work?

I want to uninstall the touchsmart features on my 610 running Windows 7 Professional. I do not use touchsmart and the touch capability causes problems--for example, my screen can be messed up, I assume by staic electricit, if a piece of paper is moved near it.
My question is this: Will the webcam and dvd player still work after the touchsmart programs are removed.
Thanks to anyone who can help.

Hi,
You can disable it using the following methods. Others will stay and work:
http://www.ehow.com/how_7499070_disable-hp-6001050-touchsmart-tutorial.html
Regards.
BH
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Microsoft NX-6000 Webcam and Arch Linux

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Hmmmm ... I've been trying other things and I get a really interesting message from fswebcam ...
[max@pwn ~]$ fswebcam | xsel -i
--- Opening /dev/video0...
Trying source module v4l2...
/dev/video0 opened.
No input was specified, using the first.
Adjusting resolution from 384x288 to 352x288.
--- Capturing frame...
gd-jpeg: JPEG library reports unrecoverable error: Not a JPEG file: starts with 0x02 0x8a
Captured frame in 0.00 seconds.
--- Processing captured image...
There are unsaved changes to the image.
Not a JPEG file?

Using and Troubleshooting the Dell Webcam and Dell Webcam Central Software

Please read the information at...
Using and Troubleshooting the Dell Webcam and Dell Webcam Central Software
Locate the execute file (WebcamDell2.exe) buried in...
C:\Program Files (x86)\Dell Webcam\Dell Webcam Central
Right clicked on it, then left click properties, then clicked on the compatibility tab, then changed compatibility from windows XP to Windows Vista SP 2 (the latest one they had).
If your operating system was upgraded to Windows 7, did you install the drivers in the correct order? How to Download and Install Drivers in the Correct Order
Shutdown the computer. Unplug the computer from the wall. Now remove the battery. Press and hold the power button for 30 seconds. Put the
battery back in and start the computer. Did the webcam come back?
If no, start, control panel, devices and printers. Click on add device. Is the webcam listed there?
If you recently reinstalled the operating system, did you use the preferred method? Restoring Your Computer´s Software to the Factory Settings or Restoring Your Dell Computer to Original Factory Installation with Dell DataSafe Local Backup 2.0
Please use Internet Explorer(32-bit) when navigating to My Dell Downloads :: Login. Use the same email address and password you use here. Click on add system.
***Systems purchased befor April 1, 2010 might NOT register with Dell My Downloads***
If system does NOT register after 5 minutes, then contact Dell Tech Support.
If you have XP or a system that will not register, then try using this version of Dell Webcam Central. Once it's installed, then open it, click on the ? , check for software update
Open Dell Webcam Central. In the bottom right corner, make sure the webcam is on Capture mode.
Rick

Hello Rick,
Thanks for trying to help.
Here is the info as requested:-
Host Name: DELLLAPTOP
OS Name: Microsoft Windows 7 Home Premium
OS Version: 6.1.7601 Service Pack 1 Build 7601
OS Manufacturer: Microsoft Corporation
OS Configuration: Standalone Workstation
OS Build Type: Multiprocessor Free
Registered Owner: Trevor
Registered Organization: Microsoft
Product ID: ?????
Original Install Date: 07/07/2010, 11:46:05
System Boot Time: 24/10/2011, 12:06:27
System Manufacturer: Dell Inc.
System Model: Inspiron 1570
System Type: x64-based PC
Processor(s): 1 Processor(s) Installed.
[01]: Intel64 Family 6 Model 23 Stepping 10 GenuineIntel ~793 Mhz
BIOS Version: Dell Inc. A05, 23/03/2011
Windows Directory: C:\Windows
System Directory: C:\Windows\system32
Boot Device: \Device\HarddiskVolume2
System Locale: en-gb;English (United Kingdom)
Input Locale: en-gb;English (United Kingdom)
Time Zone: (UTC) Dublin, Edinburgh, Lisbon, London
Total Physical Memory: 2,937 MB
Available Physical Memory: 1,399 MB
Virtual Memory: Max Size: 5,872 MB
Virtual Memory: Available: 4,244 MB
Virtual Memory: In Use: 1,628 MB
Page File Location(s): C:\pagefile.sys
Domain: WORKGROUP
Logon Server: \\DELLLAPTOP
Hotfix(s): 71 Hotfix(s) Installed.
[01]: 982861
[02]: KB971033
[03]: KB2305420
[04]: KB2393802
[05]: KB2425227
[06]: KB2475792
[07]: KB2476490
[08]: KB2478662
[09]: KB2479628
[10]: KB2479943
[11]: KB2484033
[12]: KB2485376
[13]: KB2487426
[14]: KB2488113
[15]: KB2491683
[16]: KB2492386
[17]: KB2503658
[18]: KB2503665
[19]: KB2505438
[20]: KB2506014
[21]: KB2506212
[22]: KB2506223
[23]: KB2506928
[24]: KB2507618
[25]: KB2507938
[26]: KB2508272
[27]: KB2508429
[28]: KB2509553
[29]: KB2511250
[30]: KB2511455
[31]: KB2515325
[32]: KB2518869
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[45]: KB2541014
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[48]: KB2547666
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[50]: KB2555917
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[53]: KB2560656
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[57]: KB2564958
[58]: KB2567053
[59]: KB2567680
[60]: KB2570791
[61]: KB2570947
[62]: KB2572077
[63]: KB2579686
[64]: KB2586448
[65]: KB2607712
[66]: KB2616676
[67]: KB958488
[68]: KB976002
[69]: KB976902
[70]: KB976932
[71]: KB982018
Network Card(s): 4 NIC(s) Installed.
[01]: Realtek PCIe GBE Family Controller
Connection Name: Local Area Connection
Status: Media disconnected
[02]: Intel(R) WiFi Link 5100 AGN
Connection Name: Wireless Network Connection
DHCP Enabled: Yes
DHCP Server: 192.168.1.254
IP address(es)
[01]: ????
[02]: ????
[03]: Microsoft Virtual WiFi Miniport Adapter
Connection Name: Wireless Network Connection 2
Status: Media disconnected
[04]: Cisco Systems VPN Adapter for 64-bit Windows
Connection Name: Local Area Connection 2
Status: Hardware not present
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Trevor

Same code gives different results in Matlab Script in Labview and Matlab

I am implemeting a Matlab code into a LabVIEW application using Matlab script. When I import the exactly same code to the Matlab Script in LabVIEW it gives a different result than it is in Matlab. This code is a simulation code including first kind bessel functions. Using LabVIEW 7.1 and Matlab R14 service pack 3.

Labview 8.5
Matlab R2009b
Attached are the graphs produced by matlab script in labview and in matlab.
The minimum of graph produced by matlab code is below 1 and that in labview is above 1.
Thanks a lot for your reply.
Sorry, I haven't quantified the "sometimes" yet.
Attachments:
matlabsResult.jpg ‏29 KB
LV.png ‏84 KB

Java API for webcams and Electrical Engineering

Hi,
Does anyone know of and API's that allow access to:
- Webcams, so that you are able to monitor a webcam and access the images etc etc
- Electronic circuit boards, e.g. monitor hardware, such as a processing plant whereby you can monitor output, input etc
Basically a java interface to hardware, i looked at the javacomm api, but this only allows basic functionality as far as i am aware.
Essentially, i need to monitor production faciltiies interfacing to a java environment so that hardware can be controlled and monitored.
Any suggestions people ?
Thanks
K

The Java Twain API from http://www.gnome.sk is designed to connect to a camera (or scanner) directly from the java application. You can comunicate with the camera, snap images, save them, ...
If you just want to see how Java Twain works:
- java (1.2 or higher) has to be installed on your computer
- a scanner or camera has to be installed on your computer
- download the trial package from http://www.gnome.sk
- unzipp it
- go to the examples directory of the unzipped package
- doubleclick the runExampleShow.bat (for Windows) or runExampleShow.sh (for MacOS) file
This will pop up the Twain Source Selection user interface. There, all your scanners and cameras which do have a twain driver should be listed. Select one of them. The user interface of the selected scanner (camera) will appear. Confirm the scanning (you can set the scanning parameters first). The scanned image will be displayed in a separate window. To end the application, close that window.
Running different examples, you can test scanning with hidden UI, saving the scanned image, using ADF, ...
If there are any problems, inquire at the technical support [email protected], I am a member :)
Erika

Webcam and Whiteboard not working with Adobe AIR with Adobe Flash Builder

Hi,
I am trying to build a simple chat service using Adobe Flash Builder target for desktop AIR( my final objective is to port it to android). My adobe AIR version is 2.5.0 and below is my source code:
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600" xmlns:rtc="http://ns.adobe.com/rtc">
<fx:Declarations>

<rtc:AdobeHSAuthenticator id="auth" userName="Yy" protocol="rtmfp"/>
</fx:Declarations>
<rtc:ConnectSessionContainer id="session" authenticator="{auth}" roomURL="https://collaboration.adobelivecycle.com/yytan1987/myfirstroom" width="100%" height="100%">
<mx:HBox width="100%" height="100%">
<mx:VBox width="25%" height="100%">
<rtc:WebCamera width="100%" height="50%"/>
<rtc:SimpleChat width="100%" height="50%"/>
</mx:VBox>
<rtc:SharedWhiteBoard width="75%" height="100%"/>
</mx:HBox>
</rtc:ConnectSessionContainer>
</s:WindowedApplication>
Basically when i debug it with AIR, the chat is working properly but the webcam and whiteboard just don't work....I really don't know what's wrong with it already...Appreciate it if anyone can help,thanks!!
Regards

Hi,
My take is , is your autopromote tuned on for the room. I mean whats
your user role when an user enters the room(who is not host), is it 10
or 50. If its 10 i.e. viewer , then he cant use his own cam etc. You
need to take a look at the logs when an user enters and if its 10 and
you want to give him these permissions, turn autopromote on from the
devconsole for the room to make his role 50 i.e. publisher.
I just now downloaded 2.5.1 AIR and created a new project with your
source and I am able to use everything.
Thanks
Hironmay Basu

Recording different scenario of WebCamera and AudioPublisher

Hi,
I do recording of WebCamera and AudioPublisher and found the following results.
1. Recording using RTMFP protocol with player 10.1 lccs.swc: (WebCamera and AudioPublisher are not working)
12:55:15 GMT+0600    RECEIVENODES UserManager
12:55:15 GMT+0600    receiveAllSynchData UserManager
12:55:15 GMT+0600    RECEIVENODES FileManager
12:55:15 GMT+0600    receiveAllSynchData FileManager
12:55:15 GMT+0600    checkManagerSync:[object FileManager]
12:55:15 GMT+0600    RECEIVENODES AVManager
12:55:15 GMT+0600    mainNetStatusHandler: NetGroup.Connect.Success
12:55:15 GMT+0600    NetGroup Creation Successful
12:55:15 GMT+0600    NetGroup Creation Successful
12:55:15 GMT+0600    receiveAllSynchData AVManager
12:55:15 GMT+0600    checkManagerSync:[object StreamManager]
12:55:15 GMT+0600    RECEIVENODES RoomManager
12:55:15 GMT+0600    mainNetStatusHandler: NetGroup.Connect.Success
12:55:15 GMT+0600    NetGroup Creation Successful
12:55:15 GMT+0600    NetGroup Creation Successful
12:55:15 GMT+0600    mainNetStatusHandler: NetGroup.Connect.Success
12:55:15 GMT+0600    NetGroup Creation Successful
12:55:15 GMT+0600    NetGroup Creation Successful
12:55:15 GMT+0600    receiveAllSynchData RoomManager
12:55:15 GMT+0600    checkManagerSync:[object RoomManager]
12:55:15 GMT+0600    checkManagerSync:[object UserManager]
12:55:16 GMT+0600    RECEIVENODES myCamera
12:55:16 GMT+0600    receiveAllSynchData myCamera
12:55:16 GMT+0600    mainNetStatusHandler: NetStream.Connect.Success
12:55:16 GMT+0600    mainNetStatusHandler: NetStream.Connect.Success
2. Recording using RTMFP protocol with player 10.1 lccs.swc: (WebCamera and AudioPublisher are working)
after ConnectSessionContainer creationComplete added the following line
cSession.streamManager.maxP2PStreamPublish = 0;
12:58:58 GMT+0600    RECEIVENODES UserManager
12:58:58 GMT+0600    receiveAllSynchData UserManager
12:58:58 GMT+0600    RECEIVENODES FileManager
12:58:58 GMT+0600    receiveAllSynchData FileManager
12:58:58 GMT+0600    checkManagerSync:[object FileManager]
12:58:58 GMT+0600    RECEIVENODES AVManager
12:58:58 GMT+0600    receiveAllSynchData AVManager
12:58:58 GMT+0600    checkManagerSync:[object StreamManager]
12:58:58 GMT+0600    RECEIVENODES RoomManager
12:58:58 GMT+0600    mainNetStatusHandler: NetGroup.Connect.Success
12:58:58 GMT+0600    NetGroup Creation Successful
12:58:58 GMT+0600    NetGroup Creation Successful
12:58:58 GMT+0600    mainNetStatusHandler: NetGroup.Connect.Success
12:58:58 GMT+0600    NetGroup Creation Successful
12:58:58 GMT+0600    NetGroup Creation Successful
12:58:58 GMT+0600    mainNetStatusHandler: NetGroup.Connect.Success
12:58:58 GMT+0600    NetGroup Creation Successful
12:58:58 GMT+0600    NetGroup Creation Successful
12:58:58 GMT+0600    receiveAllSynchData RoomManager
12:58:58 GMT+0600    checkManagerSync:[object RoomManager]
12:58:58 GMT+0600    checkManagerSync:[object UserManager]
12:58:59 GMT+0600    RECEIVENODES myCamera
12:58:59 GMT+0600    receiveAllSynchData myCamera
12:58:59 GMT+0600    The total stream limit for P2P streams have
3. Recording using RTMPS protocol with player 10.1 lccs.swc: (WebCamera and AudioPublisher are working)
13:03:14 GMT+0600    RECEIVENODES UserManager
13:03:14 GMT+0600    receiveAllSynchData UserManager
13:03:14 GMT+0600    Setting isPeer to false as connection is not RTMFP for User
13:03:14 GMT+0600    RECEIVENODES FileManager
13:03:14 GMT+0600    receiveAllSynchData FileManager
13:03:14 GMT+0600    checkManagerSync:[object FileManager]
13:03:14 GMT+0600    RECEIVENODES AVManager
13:03:14 GMT+0600    receiveAllSynchData AVManager
13:03:14 GMT+0600    checkManagerSync:[object StreamManager]
13:03:14 GMT+0600    RECEIVENODES RoomManager
13:03:15 GMT+0600    receiveAllSynchData RoomManager
13:03:15 GMT+0600    checkManagerSync:[object RoomManager]
13:03:15 GMT+0600    checkManagerSync:[object UserManager]
13:03:15 GMT+0600    RECEIVENODES myCamera
13:03:15 GMT+0600    receiveAllSynchData myCamera
Is there any issues for Recording using RTMFP protocol with player 10.1 lccs.swc?
Regards,
John

Hi,
I'm thinking you've posted to the wrong group here - have a look at the programming language you're using, (LabWindows\CVI or LabVIEW) or post to the Multi-function I/O group at http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RPAGEID=8&RFORMNUMBER=3&RHIDETAG=TRUE&UCATEGORY_0=_30&UCATEGORY_S=0
On a side note, I can't see why you shouldn't be able to set up this kind of measurement. The method you'll need depends on what speed you want to read those inputs at. You can set them up on a trigger, and then read the stored values, or you could just grab the analog followed by the counters, it depends on your required timing - simultaneously could be taken as zero time between each, but there'll always be some delay between the analog input channels, unless you
've got a simultaneous sampling board.
On the topic of mutlithreading, you don't say what you're refering to - LabVIEW and LabWindows\CVI can both handle multithreading, as can TestStand, although this requires a programming language to interface to the hardware. NI Hardware can handle calling from multiple threads, as long as the handles to the card are handled correctly - i.e. mutliple threads initialising the board at different times will over-write the previous threads setup - you need to create some sort of session manager within your program. (TestStand is designed as a test executive, and therefore used to bring together various hardware, and since it can go multithreaded for batch and parallel testing, TestStand 2.0.1f1 comes with it's own session manager)
Hope that helps
S.
// it takes almost no time to rate an answer

Logitech c270 webcam and OS X

I recently bought a Logitech c270 webcam with the understanding that it would work with my iMac. However the webcam does not seem to be recognised by my iMac.
When I connect the webcam it is not switching on, no green light on the webcam or anything to indicate any activity at all.
I read on the Logitech site that all the software needed was already in OS X. Am I missing something?
Any help most appreciated.

There are only certain Logitech Webcams that work with Macs and OS X.
According to Logitech the webcam you purchased DOES NOT work with Macs or OS X.
Here's the only Logitech Webcam that Logictech states that works with both Macs and PCs.
http://www.logitech.com/en-us/webcam-communications/webcams/hd-webcam-c615
I have this webcam and can confirm it works pretty well with Macs, but the Logitech software for Mac is more limited than the same software used on a PC.
Some of its stated functions only work on the PC side and not the Mac side.

Webcam and MATLAB

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