Пример #1
0
        void Initialize()
        {
            if (firstActive)
            {
                throw new VideoGrabberException("已經呼叫過 BeginGrabber() 方法了!");
            }
            firstActive = true;

            if (!DsUtils.IsCorrectDirectXVersion())
            {
                EndGrabber();
                throw new VideoGrabberException("系統未安裝 DirectX 8.1 以後的版本!");
            }

            /*
             * //if( ! DsDevice.GetDevicesOfCat( FilterCategory.VideoInputDevice, out capDevices ) )
             * if( (capDevices = DsDevice.GetDevicesOfCat( FilterCategory.VideoInputDevice )) == null )
             * {
             *      EndGrabber();
             *      throw new VideoGrabberException("未偵測到視訊裝置!");
             * }
             *
             * DsDevice dev = null;
             * if( capDevices.Length == 1 )
             *      dev = capDevices[0] as DsDevice;
             * else
             * {
             *      DeviceSelector selector = new DeviceSelector( capDevices );
             *      selector.ShowDialog( this );
             *      dev = selector.SelectedDevice;
             * }
             */

            if (capDevice == null)
            {
                DeviceSelector selector = new DeviceSelector( );
                if (selector.Devices.Length > 1)
                {
                    selector.ShowDialog(this);
                }

                capDevice = selector.SelectedDevice;

                if (capDevice == null)
                {
                    EndGrabber();
                    throw new VideoGrabberException("無法取得視訊裝置!");
                }
            }

            if (!StartupVideo(capDevice.Mon))
            {
                EndPreview();
                EndGrabber();
                throw new VideoGrabberException("無法初始化設定視訊裝置!");
            }
        }
Пример #2
0
        void Initialize()
        {
            if (firstActive)
            {
                throw new VideoGrabberException("已經呼叫過 BeginGrabber() 方法了!");
            }
            firstActive = true;

            if (!DsUtils.IsCorrectDirectXVersion())
            {
                EndGrabber();
                throw new VideoGrabberException("系統未安裝 DirectX 8.1 以後的版本!");
            }

            if (capDevice == null)
            {
                if ((capDevices = DsDevice.GetDevicesOfCat(FilterCategory.VideoInputDevice)) == null)
                {
                    EndGrabber();
                    throw new VideoGrabberException("未偵測到視訊裝置!");
                }

                if (capDevices.Length >= 1)
                {
                    capDevice = capDevices[0] as DsDevice;
                }
                else
                {
                    DeviceSelector selector = new DeviceSelector();
                    selector.ShowDialog(this);
                    capDevice = selector.SelectedDevice;
                }
            }

            if (capDevice == null)
            {
                EndGrabber();
                throw new VideoGrabberException("無法取得視訊裝置!");
            }

            if (!StartupVideo(capDevice.Mon))
            {
                EndGrabber();
                throw new VideoGrabberException("無法初始化設定視訊裝置!");
            }

            grabberThread = new Thread(new ThreadStart(Processing));
        }