简化相机逻辑，支持手动数据处理

C3032

2026-01-08 5ddadba291ea2d9dba78259973594a4664b94f57

 LB_VisionProcesses/Cameras/2DCameraForm.cs

@@ -253,15 +253,7 @@
                }

                IntPtr displayHandle = onlinePictureBox.Handle;
                if (brand == CameraBrand.LBCamera)
                {
                    onlinePictureBox.Visible = false;
                    displayHandle = this.panel_Picture.Handle;
                }
                else
                {
                    onlinePictureBox.Visible = true;
                }

                if (cmbSN.Items.Count > 0 && camera.InitDevice(cmbSN.Text.ToString(), displayHandle))
                {
@@ -402,18 +394,7 @@
        /// <param name="image"></param>
        private void GetImageBllComplete(object sender, CameraEventArgs e)
        {
            // 对于LBCamera（SDK自动显示模式），Bitmap为null，我们只需要统计
            if (camera.Brand == CameraBrand.LBCamera)
            {
                if (e is LBCameraEventArgs args && args.IsComplete)
                {
                    total.iImageCount++;
                    // 不需要更新onlinePictureBox.Image，SDK会自动显示
                }
                return;
            }

            // 对于2D相机（手动处理模式）
            // 对于2D相机（手动处理模式）和现在的LBCamera（手动处理模式）
            if (e.Bitmap == null)
                return;

@@ -466,54 +447,13 @@

                if (success)
                {
                    // 对于LBCamera（SDK自动显示模式），等待采集完成即可
                    // 对于2D相机，等待Bitmap事件
                    if (camera.Brand == CameraBrand.LBCamera)
                    {
                        // SDK自动显示模式下，等待采集完成
                        using (AutoResetEvent waitHandle = new AutoResetEvent(false))
                        {
                            bool captured = false;
                            EventHandler<CameraEventArgs> handler = (s, evt) =>
                            {
                                if (evt is LBCameraEventArgs args && args.IsComplete)
                                {
                                    captured = true;
                                    waitHandle.Set();
                                }
                            };

                            camera.ImageGrabbed += handler;
                            try
                            {
                                // 等待5秒超时
                                if (waitHandle.WaitOne(5000))
                                {
                                    // SDK自动显示模式，不返回Bitmap
                                    // 但采集已完成
                                }
                                this.BeginInvoke(new Action(() =>
                                {
                                    this.lblCapTime.Text = $"{(DateTime.Now - StartTime).TotalMilliseconds}ms";
                                }));
                            }
                            finally
                            {
                                camera.ImageGrabbed -= handler;
                                camera.StopGrabbing();
                            }
                        }
                    }
                    else
                    {
                        // 对于2D相机，等待图像数据
                    // 等待图像数据
                        using (AutoResetEvent waitHandle = new AutoResetEvent(false))
                        {
                            Bitmap captured = null;
                            EventHandler<CameraEventArgs> handler = (s, evt) =>
                            {
                                // 对于2D相机，直接接收图像
                                if (!(evt is LBCameraEventArgs) && evt.Bitmap != null)
                            if (evt.Bitmap != null)
                                {
                                    captured = evt.Bitmap.Clone() as Bitmap;
                                    waitHandle.Set();
@@ -548,7 +488,6 @@
                                this.lblCapTime.Text = "-1ms";
                            }
                        }));
                    }
                }
                else
                {