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Windows XP "Capture Pictures from Video"

Posted on 2005-04-22
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Last Modified: 2013-11-13
When I go to Import Image in any image editing program, I can import from any TWAIN device. If I select to import from my webcam, a window appears titled ""Capture Pictures from Video".

In this box there is a webcam preview on the left, and on the right, thumbnails of previously captured images.

I would like to know how to clear the thumbnails, as they are building up.

Thanks,

Jon
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Question by:GeForce7777
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29 Comments
 
LVL 69

Expert Comment

by:Callandor
ID: 13845357
Not exactly a hardware question; perhaps you want to move this to Multimedia Applications?
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Author Comment

by:GeForce7777
ID: 13846614
Hi Callandor,

I agree with you and I apologise for posting in the incorrect place. I am happy for this to be moved.

Jon
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LVL 69

Expert Comment

by:Callandor
ID: 13846684
Ok, I've notified Community Support.
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LVL 13

Expert Comment

by:Watzman
ID: 13847276
In the meantime, in most programs if you simply right-click on the thumbnail, "delete" will usually be one of the choices.
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Author Comment

by:GeForce7777
ID: 13849008
Netminder: Thank you very much

Watzman: I have tried this and the option is not available. Selecting the thumbnails and pressing the Del key on the keyboard does not work either.

Any other ideas?
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LVL 18

Expert Comment

by:crissand
ID: 13850083
Have you searched your profile? Go to My Documents and see if you have a My Pictures or other subfolder, where the captured pictures can be.
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Author Comment

by:GeForce7777
ID: 13850731
Crissand:

Yes, I have done this and found nothing. Thanks for the suggestion anyway.

Jon
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LVL 18

Expert Comment

by:crissand
ID: 13854284
Is there a posibility that the webcam to have its own memory? Maybe the captured images are there and not in the computer's harddisk.
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LVL 13

Expert Comment

by:Watzman
ID: 13854557
The are probably stored in "my pictures".

But here's a way to find out:  Take a picture (still picture).  Then immediately do:

Start / Find (or search) and look for *.JPG (any JPEG file (assuming that it stores them as a JPEG)), and use the "time" qualifier to find only files created in the past 24 hours.  The file found should be the picture that you just saved (of course, if you know the actual filename, that's even better).  Once the image is found, you can see where it is, and it's highly likely that all of your images will be in the same place.
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Author Comment

by:GeForce7777
ID: 13854735
Crissand: I had not thought of that, but I have checked and this particular webcam does not have any memory.

Watzman: A very good idea and I tried it. I took a picture of a battery and then searched for all GIFs, JPEGs and PNGs created within the last day. None of them were my pic of my battery.

So thanks very much both of you, but still no solution!

Jon
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LVL 13

Expert Comment

by:Watzman
ID: 13854806

That's surprising.  Either it's being stored in a format other than JPEG (very uncommon these days), or perhaps it is indeed in the camera and not on the computer.
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LVL 69

Expert Comment

by:Callandor
ID: 13855247
Which exact extensions did you search for?  JPG is the actual extension for JPEGs.
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Author Comment

by:GeForce7777
ID: 13856410
Callandor: I did four seperate searches for *.jpg, *.JPG, *.jpeg and *.JPEG.

Thanks,

Jon
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LVL 18

Expert Comment

by:crissand
ID: 13856710
What webcam do you have, and how is connected to computer?
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Author Comment

by:GeForce7777
ID: 13864401
The Webcam is a Logitech Quickcam Express, connected via USB.

Thanks,

Jon
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LVL 18

Expert Comment

by:crissand
ID: 13865875
In the folder %WINDIR%\twain_32\DEVICE must be one or some image files. My camera creates a file called preview.bmp there.

DEVICE must be replaced with the name of the device, explore the folder %WINDIR%\twain_32\ to see.
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Author Comment

by:GeForce7777
ID: 13867977
Hi,

In the folder C:\WINDOWS\twain_32\QuickCam the following files appear AFTER I have taken some previews that appear in the "Capture Pictures from Video" box:

click.wav
HPortal.dll
HVideoS.exe
HVideoSP.dll
LHPortal.dll
LQCTwn32.dll
QCTwn32.ds

There are no pictures files. This is Windows XP Professional in case you need to know.

Thanks again,

Jon
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LVL 18

Expert Comment

by:crissand
ID: 13868117
The webcam can save a lot of picture format, but, usually, the previews are in bmp form. As far as I know, can be tiff, gif, png.

What else can I say: do a search for all formats that camera can save: BMP, TIF, JPEG, PCX, PNG, TGA, PSD.
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LVL 13

Expert Comment

by:Watzman
ID: 13868585
That helps a lot, since I have a Logitech quickcam also.

The photos are not stored in the camera.  For sure.

On my system, they are stored in "My Pictures\My Logitech Pictures\Pictures and Videos"

With my version of the logitech software (8.30), I have full access if, from the main software window, I select "My Logitech Pictures" on the right side of the application Window.  I can easily delete them from that window.

My camera is a Quickcam Zoom, the older white model (the later ones, which are not as good in my experience, are chome-plated).  But I think that all of the cameras, including your express, can use the same software, so you may want to get the latest software from the logitech web site.

My pictures are stored as JPEGs (*.jpg).
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Author Comment

by:GeForce7777
ID: 13877485
crissand: Thanks, but still nothing!

Watzman: I do indeed have the lastest version software available for this particular camera.

Thanks,

Jon
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LVL 13

Expert Comment

by:Watzman
ID: 13877665
Do a search for a folder(s) with "Logitech" in the name, and look in those folders.
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Author Comment

by:GeForce7777
ID: 13879301
Hi,

I have done as you said. There were only two folders appear:

C:\Documents and Settings\All Users\Start Menu\Programs\Logitech
C:\Program Files\Logitech

I have had a look around in both and none have any previews in them.

Thanks again,

Jon
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LVL 13

Expert Comment

by:Watzman
ID: 13879478

????

Ok, remember the previous suggest, where we did a capture and then looked for it?  [without success]

Let's try the same thing again, only this time look for *.* (any file), but use the date option in the search (find) function to limit the search to today (last 24 hours in some versions of Windows), and then use the "detail" view to sort the list of files found in date/time order.  The picture that you just created is going to be at the "most recent" end of those files.
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Author Comment

by:GeForce7777
ID: 13903715
Watzman: Sorry for the late reply, I've been busy the last few days.

I did however do as you suggested, with the same results. The only pictures that came up were ones I had transferred onto the computer from my digicam earlier.

Thanks again,

Jon
0
 
LVL 13

Expert Comment

by:Watzman
ID: 13904506

Something is wrong here, because the logitech quickcams have no internal storage at all, the picture is stored on the hard drive, and yet you are saying that when you search the entire computer for any new file (*.*, with any filetype) immediately after taking a picture, you are not finding anything.  It has to be on the drive somewhere, something is wrong with the search.
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Author Comment

by:GeForce7777
ID: 13905522
Watzman: I entirely agree with you! I cannot see what is happening here but I assure you the search turned up nothing at all of interest.

Jon
0
 

Author Comment

by:GeForce7777
ID: 14020068
I've sorted this out myself by just using a different TWAIN driver. Thanks for all your help.

Jon
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LVL 18

Expert Comment

by:crissand
ID: 14030315
ok.
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