Communicate with linksprite camera

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after sending the "take picture" command ,
How to get back the bytes that represent the image and store them in a memory stream ?

Posted 10-Nov-12 10:15am

Kushina

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Pepin z Hane 10-Nov-12 16:49pm

Which library do you use? takePicture is a method of which class of which library?

Kushina 12-Nov-12 11:16am

thank you ( Pepin z Hane) for your useful reply , this camera has its own commands and this is the manual http://www.mediafire.com/view/?ec79xt02620zil5[^] I dont know at the moment if the code you mentioned in your reply can be applied to this camera because i have not got the camera with me now .

we are trying now to write 2 functions ::

1- TakePicture
2- ReadJpegFileContents

we are finding difficulties in writting the 2 functions because we are a beginners
in c# and we didnt study it in our course .

we will upload the code that we wrote later on !! .

we will appreciate any help in this feild or any references that might help

thank you

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Pepin z Hane · Accepted Answer · 2012-11-10T11:07:00

I don't know what library do you use and even I don't know what linksprite camera means, but try this framework for working with cameras or video cameras: http://www.aforgenet.com/framework/[^]

I was working with video cameras, try this:

C#

public class CameraImaging
    {
        // enumerate video devices
        public FilterInfoCollection videoDevices = new FilterInfoCollection(FilterCategory.VideoInputDevice );
        //camera
        private VideoCaptureDevice _videoSource;
        public Bitmap bitmap = new Bitmap(10, 10);
        public VideoCaptureDevice videoSource
        {
            get
            {
                return _videoSource;
            }
            set
            {
                _videoSource = value;
                // set NewFrame event handler
                _videoSource.NewFrame +=new NewFrameEventHandler(videoSource_NewFrame);
            }
        }
        //screen shot
        
        public CameraImaging(VideoCaptureDevice videoDevice)
        {
            // create video source
            VideoCaptureDevice videoSource = videoDevice;
        }
        public CameraImaging()
        {

        }
        private void videoSource_NewFrame( object sender, NewFrameEventArgs eventArgs )
        {
            // get new frame
            lock (bitmap)
            {
                bitmap = (Bitmap)eventArgs.Frame.Clone();
                // process the frame
            }
            
        }
    }

and run the video in MainForm... this will make one image (bitmap):

C#

camImg.videoSource.Start();
lock (mImageLock)
{
    Bitmap tmp = (Bitmap)camImg.bitmap.Clone();

    if (InvokeRequired)
    {
        BeginInvoke(new MethodInvoker(() =>
        {
            pictureBox1.Image = tmp;
            pictureBox1.Invalidate();
        }));
    }
    else
    {
        pictureBox1.Image = tmp;
        pictureBox1.Invalidate();
    }
}
camImg.Video.Stop();