Error -1074396024 occured in IMAQ USB init.vi, but cam works with skype

[doerigp]

Hello

When I try to integrate a Moticam 2000 into Labview 8.6.1 with Vision, it is recognized by the IMAQ USB driver, but error 1074396024 occurs. I downloaded a special DirectShow driver for this cam from the manufacturer here. The cam works fine with Skype, but Labview says something about invalid video settings.

However, a logitech webcam cooperated perfectly with IMAQ USB.

Any Ideas on this topic?

[laurentp]

Hello,

This error "1074396024 "is reported with non English operating system. I fear that you have to use an english windows instead to make this work.

I hope this helps.

Laurent P

AE NI Switzerland

[doerigp]

Thanks for the advice!

I heard of that problem,but wasn't sure whether it still applied for the actual version of the USB IMAQ. So is it possible that one camera works fine with the USB IMAQ, while the other doesn't because of the non-english operating system? Why is that?

Anyway, I will try to get an english windows and try again..

[laurentp]

Hello,

Sorry for the late answer, the problem is also applied for the  USB IMAQ. Don't you have any trouble anymore with an english OS?

Laurent P

AE NI Switzerland

[muks]

Have you seen this answer ?

[laurentp]

Yes  I've seen this link.

Is your camera Directshow Compliant? Have you tested it already on an english OS?

Regards,

LaurentP

[doerigp]

The camera is DirectShow compliant with the driver given me by the manufacturer. I have no insight into the driver, but Labview recognizes the cam as DS device. I set up everything on an English OS, with no difference, same error.

[doerigp]

I guess thats it for the moment, I dont want to write a capture vi based on dll calls. So maybe I look for an ActiveX solution (as IVision) or buy a TWAIN driver which is the better supported interface to that camera..

[andreca]

Have you solved your problem? I am using a Terratec Grabby(USB frame grabber) and have the same problem. I can view the video stream in Windows Movie Maker, but get the same errors in Vission Assistant and LabVIEW 8.6

regards

Andreas Carlsen 

[muks]

quoted from DJL's reply in the link

The NI-IMAQ for USB Cameras is a free software driver for acquiring images from any DirectShow imaging device into LabVIEW. If your USB TV Adapter is not DirectShow compliant, then the NI-IMAQ for USB driver will probably not be able to acquire images using it. Just because Windows can detect the USB camera, and the I-Vision software can acquire from it, does not mean that the NI-IMAQ for USB driver will be able to detect or acquire images from it.

The best way then to acquire images from a non-DirectShow USB "camera" is to use the DLL that comes with the hardware, and use the LabVIEW Call Library Function Node to access that DLL. This is kind of like making your own USB driver for the tv adapter. Most often, 3rd party DLL's will return the video data as a 2-D array of pixel data. You can then use the Vision Development Module function called IMAQ ArrayToImage.VI to convert the array of video data into an image data type to be used to display images in the Image Display.