public virtual bool ClosedCaptionAvailable { get; }
public:
virtual property bool ClosedCaptionAvailable {
bool get();
}
true if Closed Captioning is available; false, otherwise.
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public CaptureCtrl _capturectrl;
public void ClosedCaptioningExample()
{
// reference the capture control
_capturectrl = _form.CaptureCtrl;
// output file names
string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_ClosedCaptioningExample_DVD");
try
{
// try to find a Digital tuner, use your device name here
if (_capturectrl.VideoDevices["Analog"] == null)
throw new Exception("No Analog video device available");
_capturectrl.VideoDevices["Analog"].Selected = true;
// select video and audio compressors
_capturectrl.VideoCompressors.Mpeg2.Selected = true;
_capturectrl.AudioCompressors.AC3.Selected = true;
// set the target format to MPEG2 program
_capturectrl.TargetFormat = TargetFormatType.MPEG2Program;
if (_capturectrl.HasDialog(CaptureDlg.TargetFormat))
_capturectrl.ShowDialog(CaptureDlg.TargetFormat, _form);
// tune to a channel with closed captions
_capturectrl.TVTuner.SetChannel(28, -1, -1);
// set the target file
_capturectrl.TargetFile = outFile;
// enable the preview
_capturectrl.Preview = true;
// check whether closed captioning is enabled
if (_capturectrl.ClosedCaptionAvailable
&& _capturectrl.ClosedCaptioning == false)
{
// try to toggle closed captioning
_capturectrl.ToggleClosedCaptioning();
// set the result to what we expect
if (_capturectrl.ClosedCaptioning)
_result = true;
// get the previewing cc state
bool _previewCC = _capturectrl.PreviewingClosedCaption;
}
// check whether we can capture video
if (_capturectrl.IsModeAvailable(CaptureMode.VideoAndAudio))
{
_capturectrl.TimeLimit = 30; // just 30 seconds of capture time
_capturectrl.UseTimeLimit = true;
// start the capture process
_capturectrl.StartCapture(CaptureMode.VideoAndAudio);
// we'll loop on the state and pump messages for this example.
// but you should not need to if running from a Windows Forms application.
while (_capturectrl.State == CaptureState.Running)
Application.DoEvents();
_result = true;
}
}
catch (Exception)
{
_result = false;
}
// we'll loop on the state and pump messages for this example.
// but you should not need to if running from a Windows Forms application.
while (_capturectrl.State == CaptureState.Running)
Application.DoEvents();
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\LEADTOOLS23\Media";
}
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