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How to capture an image of a video connection

Hello everyone, I have an application that displays video from a webcam, and I know how to do to capture an image to an event x.
Thank you.

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Hi Xontrol,

 

I am trying to understand your post. 

 

You have a webcam and you know how to capture an image.  Are you telling people this so that you can offer help, or was it a typo and you are asking help on how to capture an image?

 

R

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Hello. It's a bit strange my question, I will explain in more detail the problem.
I am capturing video from a webcam and I want at any given time one frame is stored in memory, at what time?. I'm thinking that for example when changing a button or variable value is made the catch (catch the frame). Because I want to do this?. It happens that the video capture is not stable even though the scene is static most of the time.
I discarded the snapshot capture rate by the slow cooling of the webcam (it generates black image).
I hope I can help.
Thank you.

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Have a look at the following threads, which you can search by using keywords such as:  capture image using webcam  (you can try other similar searches)

 

 

http://forums.ni.com/t5/LabVIEW/multiple-USB-cameras-in-Labview/m-p/841648/highlight/true#M382013

 

 

 

Here is what Adnan mentions in this thread:http://forums.ni.com/t5/LabVIEW/USB-Webcam-Use/m-p/867579

 

"You just need this driver: NI-IMAQ for USB Cameras which is available for free and, although, it comes with documentation, it is not officially supported by NI.

 

There is a Vision Assistant express VI in the Vision Express palette in LabVIEW. Otherwise, if you open the NI Vision Assistant application in Windows, you can create a LabVIEW VI by navigating to Tools -> Create LabVIEW VI."

 

 

This one might be more interesting as it discusses capturing from webcam using avicap32.dll:

http://forums.ni.com/t5/LabVIEW/Capture-from-Webcam-using-avicap32-dll/m-p/547476

 

 

There are many more useful threads.  Try using the Search feature of the forum.

 

Here's a link to more results:

http://forums.ni.com/t5/forums/searchpage/tab/message?q=capture+image+from+webcam#message-list

 

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