public virtual void CopyTarget(
string fileName,
bool allowEscAbort
)
public:
virtual void CopyTarget(
String^ fileName,
bool allowEscAbort
)
fileName
Character string containing the destination filename.
allowEscAbort
Value indicating whether pressing the ESC key will abort the copy operation.
The new file will contain only valid data. As a result, the destination file can be much shorter than the target. Typically, you will always capture to the same huge pre-allocated target and use this method to copy the data you want to save from each capture to a new file. If the method fails, an error is raised. For more information, refer to the Error Codes.
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public void CopyTargetExample()
{
// reference the capture control
CaptureCtrl capturectrl = _form.CaptureCtrl;
// output file
string outFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_CopyTargetExampleTarget.avi");
string outCopyFile = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_CopyTargetExampleCopyTarget.avi");
try
{
// set the source video device, select using your device name here
if (capturectrl.VideoDevices["USB"] == null)
throw new Exception("No USB video device available");
capturectrl.VideoDevices["USB"].Selected = true;
// set the source video device, select using your device name here
if (capturectrl.AudioDevices["USB"] == null)
throw new Exception("No USB audio device available");
capturectrl.AudioDevices["USB"].Selected = true;
// set the video compressor to H264
capturectrl.VideoCompressors.H264.Selected = true;
// set the audio compressor to AC3
capturectrl.AudioCompressors.AC3.Selected = true;
// set the target files
capturectrl.TargetFile = outFile;
// check whether we can capture video
if (capturectrl.IsModeAvailable(CaptureMode.VideoAndAudio))
{
capturectrl.FrameDelay = .033; // 30 frames per second
capturectrl.TimeLimit = 10; // just 10 seconds of capture time
capturectrl.UseTimeLimit = true;
// start the capture process
capturectrl.StartCapture(CaptureMode.VideoAndAudio);
}
}
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();
try
{
// try to copy the target data to a new file
capturectrl.CopyTarget(outCopyFile, false);
}
catch (Exception)
{
_result = false;
}
// set the result to what we expect
_result = File.Exists(outCopyFile);
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\LEADTOOLS23\Media";
}
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
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Medical .NET | C API | C++ Class Library | HTML5 JavaScript
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Multimedia
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Imaging, Medical, and Document
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