Programming Forums > Application Development > Visual Basic

bigbondfan · Jun 1st, 2005, 12:02 PM

Is there any way to record from a webcam using vb6?

Rory · Jun 1st, 2005, 1:11 PM

Most probably dependent on the device drivers and the accompanying, if any, SDK. Microsoft did standardise this, so the best place to check would be MSDN: You would be using out-of-process components written in Asm so performance would not be an issue with VB or any other language.

shaneapp · Jun 2nd, 2005, 11:56 AM

Their most certainly is my freind

Here is a direct example which shows how to initalize and show webcam: Webcam Example. It also shows how to fit to size 'stretch'.

However you specificaly asked how to 'Record' from a webcam. For that you will also have to have a way to capture, record and save the file to hard drive.

Hope that helped mate.

shaneapp

Rory · Jun 3rd, 2005, 1:21 AM

The SDK you're interested in is the MS Video capture library (avicap32.dll) for which information is freely available on MSDN.

Thanks shaneapp

, but this particular code sample, as well as being bloated and confusing, doesn't use the full potential of this library: it has native support for capturing frames (stillls) and chunks (periods of video) yet an odd method of screenshotting to the clipboard is being used (which won't even work if you're using hardware accelerated surfaces).

I would recommend http://www.developerfusion.co.uk/show/1988/ as it's virtually the same code, but cleaner and more to the point - MSDN and googling normally come before psc 'cause the code there is normally bloated and pointlessly "show-offy" (ooh evil windows developers!).

Again shaneapp, no direct offence intended!

bigbondfan · Jun 3rd, 2005, 3:06 PM

Thanks for your help, i've used the code in my application

shaneapp · Jun 3rd, 2005, 5:43 PM

No problem Rory im no proffessional VB programmer so the best suggestion or answer to a question is best. I my self am not advanced enough to think up my own code, i continualy have to refer to psc for snippets of code, which isnt the best way to go about making a program (im using delphi at the moment). But its the only way i can think of to learn code specifics.

Rory · Jun 3rd, 2005, 11:47 PM

Quote:

Originally Posted by shaneapp

i continualy have to refer to psc for snippets of code

Yeah I used to do that a lot, but I found the code there to be "too complete" in that there's always a lot of code devoted to "polishing" the submission (adding gimmicky UI effects) that are usually just confusing. Having said that, the hall of fame winners are brilliant, but you can always get more from looking around a bit

Jun 1st, 2005, 12:02 PM	#1
bigbondfan Newbie Join Date: May 2005 Posts: 7 Rep Power: 0	recording from a webcam Is there any way to record from a webcam using vb6?

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Jun 1st, 2005, 1:11 PM	#2
Rory Expert Programmer Join Date: Jan 2005 Location: London Posts: 542 Rep Power: 4	Most probably dependent on the device drivers and the accompanying, if any, SDK. Microsoft did standardise this, so the best place to check would be MSDN: You would be using out-of-process components written in Asm so performance would not be an issue with VB or any other language.

Jun 2nd, 2005, 11:56 AM	#3
shaneapp Newbie Join Date: Jun 2005 Posts: 4 Rep Power: 0	Their most certainly is my freind Here is a direct example which shows how to initalize and show webcam: Webcam Example. It also shows how to fit to size 'stretch'. However you specificaly asked how to 'Record' from a webcam. For that you will also have to have a way to capture, record and save the file to hard drive. Hope that helped mate. shaneapp

Jun 3rd, 2005, 1:21 AM	#4
Rory Expert Programmer Join Date: Jan 2005 Location: London Posts: 542 Rep Power: 4	The SDK you're interested in is the MS Video capture library (avicap32.dll) for which information is freely available on MSDN. Thanks shaneapp , but this particular code sample, as well as being bloated and confusing, doesn't use the full potential of this library: it has native support for capturing frames (stillls) and chunks (periods of video) yet an odd method of screenshotting to the clipboard is being used (which won't even work if you're using hardware accelerated surfaces). I would recommend http://www.developerfusion.co.uk/show/1988/ as it's virtually the same code, but cleaner and more to the point - MSDN and googling normally come before psc 'cause the code there is normally bloated and pointlessly "show-offy" (ooh evil windows developers!). Again shaneapp, no direct offence intended!

Jun 3rd, 2005, 3:06 PM	#5
bigbondfan Newbie Join Date: May 2005 Posts: 7 Rep Power: 0	Thanks for your help, i've used the code in my application

Jun 3rd, 2005, 5:43 PM	#6
shaneapp Newbie Join Date: Jun 2005 Posts: 4 Rep Power: 0	No problem Rory im no proffessional VB programmer so the best suggestion or answer to a question is best. I my self am not advanced enough to think up my own code, i continualy have to refer to psc for snippets of code, which isnt the best way to go about making a program (im using delphi at the moment). But its the only way i can think of to learn code specifics.

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Programming Forums > Application Development > Visual Basic

recording from a webcam