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   源码介绍

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halcon basler相机  

private void OnImageReadyEventCallback()
        {
            if (InvokeRequired)
            {
                /* If called from a different thread, we must use the Invoke method to marshal the call to the proper thread. */
                BeginInvoke(new ImageProvider.ImageReadyEventHandler(OnImageReadyEventCallback));
                return;
            }

            try
            {
                /* Acquire the image from the image provider. Only show the latest image. The camera may acquire images faster than images can be displayed*/
                ImageProvider.Image image = m_imageProvider.GetLatestImage();

                /* Check if the image has been removed in the meantime. */
                if (image != null)
                {
                    /* Check if the image is compatible with the currently used bitmap. */
                    if (BitmapFactory.IsCompatible(m_bitmap, image.Width, image.Height, image.Color))
                    {
                        /* Update the bitmap with the image data. */
                        BitmapFactory.UpdateBitmap(m_bitmap, image.Buffer, image.Width, image.Height, image.Color);
                        /* To show the new image, request the display control to update itself. */

                    }
                    else /* A new bitmap is required. */
                    {
                        BitmapFactory.CreateBitmap(out m_bitmap, image.Width, image.Height, image.Color);
                        BitmapFactory.UpdateBitmap(m_bitmap, image.Buffer, image.Width, image.Height, image.Color);
                        /* We have to dispose the bitmap after assigning the new one to the display control. */
                        //Bitmap bitmap = pictureBox.Image as Bitmap;
                        /* Provide the display control with the new bitmap. This action automatically updates the display. */
                        //pictureBox.Image = m_bitmap;
                        //if (bitmap != null)
                        //{
                        /* Dispose the bitmap. */
                        //bitmap.Dispose();
                        //}
                    }
                    HObject theImage = null;
                    HOperatorSet.GenEmptyObj(out theImage);
                    theImage.Dispose();

                    HTuple width, height;

                    BitmapToHObject(m_bitmap, out theImage);

                    HOperatorSet.ClearWindow(hWindowControl1.HalconWindow);

                    HOperatorSet.GetImageSize(theImage, out width, out height);
                    HOperatorSet.SetPart(hWindowControl1.HalconWindow, 0, 0, height, width);
                    HOperatorSet.DispObj(theImage, hWindowControl1.HalconWindow);
                    if (isSave)
                    {
                        isSave = false;
                        ImageSave(theImage);
                    }

                    /* The processing of the image is done. Release the image buffer. */
                    m_imageProvider.ReleaseImage();
                    /* The buffer can be used for the next image grabs. */
                }
            }
            catch (Exception e)
            {
                ShowException(e, m_imageProvider.GetLastErrorMessage());
            }
        }