0 [vfwcap @ 01c6d150] Driver 0 [vfwcap @ 01c6d150] Microsoft WDM Image Capture (Win32) [vfwcap @ 01c6d150] Version: 5.1.2600.5512 list: Input/output error $ ffmpeg -f v4l2 -list_formats all -i /dev/video0 …

In order to capture images from Web Camera (Webcam) I am making use of j Query Webcam plugin.

The images captured using Web Camera (Webcam) will be saved in folder and displayed in ASP. The HTML Markup consist of an HTML DIV for the Web Camera, an Image control for displaying the captured image, an HTML SPAN for displaying the status of the Web Camera and a Button for capturing the picture using the Web Camera. Net Question Answer site, specially started to allow visitors of this site ask their doubts and queries. Just click the Ask Now button and ask your question now.

Webcam captures samples-18

Cancel Then ‘ call system dialog Exit Sub End If str File Name = dlg File Save.

NET 2003 project I made that shows how to capture snapshots from a webcam using WIA (Windows Image Acquisition). Is there a new version of WIA that is needed (I didn't find any mention of that in msdn)? PM me and I will send the code (would post here but it's off topic).

Transfer(Format Format JPEG); // filename and saving image. It was able to implement video Capture Device class used in the sample project: Snapshot Maker example to quickly create a image capturing dialog.

Save File("Test.jpg"); the following exception: Null Reference Exception: Object reference not set to an instance of an object. It is a little slower than Direct Show Library-How to capture image using directshow library without showing the webcam live images on the Picture Box or Panel but it is stable and it is easy method for setting video and image resolutions from a supported device. Simulate Trigger() uses a bacjground thread to create an image from a video feed and returns the image on an event.

It detects the available device (tested with a Logitec Webcam), and allows you to grab an image. What it does NOT do is provide image preview, hence me lurking here. When I use Photoshop or other software with a WIA interface for cameras I find that the preview images that are saved when you press the "capture" button stay there between uses, even between closing and reopening Photoshop, even between different programs! I can't find any documentation for this little "feature" at all!

Being that it is a WIA Sample project, you have to use a WIA enabled device (usually if the device shows up in "Scanners & Cameras" in control panel, it should be WIA enabled). The funny part of the story is that: if I call an external exe, who only grab the picture from the camera with execute Command() ..... What if I want to clear the WIA preview image cache (or whatever they call it)? Thus, to capture from a device named To use one of these devices for capturing the user has to specify either the name of the device or the index shown in the device listing. [video4linux2,v4l2 @ 0xf07d80] Raw : yuyv422 : YUV 4:2:2 (YUYV) : 640x480 160x120 176x144 320x176 320x240 352x288 432x240 544x288 640x360 [video4linux2,v4l2 @ 0xf07d80] Compressed: mjpeg : MJPEG : 640x480 160x120 176x144 320x176 320x240 352x288 432x240 544x288 640x360 To use one of these devices for capturing the user has to specify either the name of the device or the index shown in the device listing.I think that both solution are causing problems because they can't find my camera, but I can use my camera in skype without any problems. Need to delegate method to prevent cross thread issues if you place the returned image on a winform control on the UI thread.Both are native APIs and you might have hard time to interface them directly from C# code, however with Direct Show. Get the source from Snapshot Maker project from source SVN link.The project so far is only for webcams, but can be extended to do similar things with digital cameras, camcorders, basically any supported WIA device. NET 1.1/C# 2.0 Blow your mind, smoke gunpowder Ashes to ashes, dust to dust If God won't have you, the devil will. Correct, but the 2.0 Library referenced in the project is only supported on Windows XP (at least in their documentation). However, I've been tring for a whole day to make this work. I really want to remove that restriction, but I don't have access to a machine with either of those OSs.