Leadtools.Multimedia Namespace > CaptureCtrl Class : TargetFormat Property |
public virtual TargetFormatType TargetFormat {get; set;}
'Declaration Public Overridable Property TargetFormat As TargetFormatType
'Usage Dim instance As CaptureCtrl Dim value As TargetFormatType instance.TargetFormat = value value = instance.TargetFormat
public virtual TargetFormatType TargetFormat {get; set;}
get_TargetFormat();
set_TargetFormat(value);
public: virtual property TargetFormatType TargetFormat { TargetFormatType get(); void set ( TargetFormatType value); }
For more information, refer to the Error Codes.
Public _result As Boolean = False Public _form As CaptureCtrlForm = New CaptureCtrlForm() Public Sub TargetFormatExample() ' reference the capture control Dim capturectrl As CaptureCtrl = _form.CaptureCtrl ' output file for processor settings Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_TargetFormatExample.avi") Try ' try to find a USB camera If capturectrl.VideoDevices("USB") Is Nothing Then Throw New Exception("No USB video device available") End If capturectrl.VideoDevices("USB").Selected = True ' try to find a USB audio device If capturectrl.AudioDevices("USB") Is Nothing Then Throw New Exception("No USB audio device available") End If capturectrl.AudioDevices("USB").Selected = True ' 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 file capturectrl.TargetFile = outFile ' set the target output format capturectrl.TargetFormat = TargetFormatType.AVI ' check if we have can capture video If capturectrl.IsModeAvailable(CaptureMode.VideoAndAudio) Then 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 AddHandler capturectrl.Complete, AddressOf 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. Do While capturectrl.State = CaptureState.Running Application.DoEvents() Loop End If Catch e1 As Exception _result = False End Try End Sub Private Sub CaptureCtrl_Complete(ByVal sender As Object, ByVal e As EventArgs) _result = True End Sub Public NotInheritable Class LEAD_VARS Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media"; End Class
public bool _result = false; public CaptureCtrlForm _form = new CaptureCtrlForm(); // capture control CaptureCtrl capturectrl; // output file string outFile = Path.Combine(LEAD_VARS.MediaDir,"CaptureCtrl_TargetFormatExample.avi"); public void TargetFormatExample() { // reference the capture control capturectrl = _form.CaptureCtrl; 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 audio 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; // select a video compressor capturectrl.VideoCompressors.Mpeg2.Selected = true; // select an audio compressor capturectrl.AudioCompressors.AC3.Selected = true; // set the target output file capturectrl.TargetFile = outFile; // 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 System.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; } static class LEAD_VARS { public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media"; }
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2