[EditorAttribute(System.Type, System.Type)]
public virtual TargetDevices TargetDevices { get; }
public:
virtual property TargetDevices^ TargetDevices {
TargetDevices^ get();
}
A TargetDevices object representing the capture output devices.
The TargetDevices object is used to enumerate and select capture output devices.
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
// capture control
CaptureCtrl capturectrl;
public void TargetDevicesExample()
{
// reference the capture control
capturectrl = _form.CaptureCtrl;
try
{
// try to find a USB camera
if (capturectrl.VideoDevices["USB"] == null)
{
throw new Exception("No USB video device available");
}
capturectrl.VideoDevices["USB"].Selected = true;
// try to find a USB audio device
if (capturectrl.AudioDevices["USB"] == null)
{
throw new Exception("No USB audio device available");
}
capturectrl.AudioDevices["USB"].Selected = true;
// set the target device, select the first target device
TargetDevices Devices = capturectrl.TargetDevices;
if (Devices[0] == null)
{
throw new Exception("No target device available");
}
Devices.Selection = 2;
// set MPEG2 as the video compressor
capturectrl.VideoCompressors.Mpeg2.Selected = true;
// set AC3 as the audio compressor
capturectrl.AudioCompressors.AC3.Selected = true;
// set the target output format
capturectrl.TargetFormat = TargetFormatType.AVI;
// check whether we can capture video
if (capturectrl.IsModeAvailable(CaptureMode.VideoAndAudio))
{
capturectrl.FrameRate = 5;
// 5 frames per second
capturectrl.UseFrameRate = true;
capturectrl.TimeLimit = 10;
// just 10 seconds of capture time
capturectrl.UseTimeLimit = true;
// subscribe to the compete event
capturectrl.Complete += new EventHandler(CaptureCtrl_Complete);
// 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();
}
}
}
catch (COMException)
{
_result = false;
}
catch (Exception)
{
_result = false;
}
}
public void CaptureCtrl_Complete(object sender, EventArgs e)
{
// set result
_result = true;
}
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
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Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document
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