EnterEdit Method

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public virtual void EnterEdit()

'Declaration
 
Public Overridable Sub EnterEdit()

'Usage
 
Dim instance As CaptureCtrl
 
instance.EnterEdit()

public virtual void EnterEdit()

 function Leadtools.Multimedia.CaptureCtrl.EnterEdit()

public:
virtual void EnterEdit();

EnterEdit and LeaveEdit help speed up application startup.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Public _result As Boolean = False
      Public _form As CaptureCtrlForm = New CaptureCtrlForm()
      Public Sub EnterEditExample()
         ' reference the capture control
         Dim capturectrl As CaptureCtrl = _form.CaptureCtrl

         ' output file names
         Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_EnterEditExample.mpg")

         Try
            ' enter edit mode so that all graph changes will be 
            ' made at one time (after the LeaveEdit call later)
            capturectrl.EnterEdit()

            ' set the source video device, select using your device name here
            If capturectrl.VideoDevices("USB") Is Nothing Then
               Throw New Exception("No USB video device available")
            End If

            capturectrl.VideoDevices("USB").Selected = True

            ' select a video compressor
            capturectrl.VideoCompressors.Mpeg4.Selected = True

            ' set the target file
            capturectrl.TargetFile = outFile

            capturectrl.FrameRate = 5 ' 5 frames per second
            capturectrl.UseFrameRate = True
            capturectrl.TimeLimit = 10 ' just 10 seconds of capture time
            capturectrl.UseTimeLimit = True

            ' apply the graph changes now
            capturectrl.LeaveEdit()

            ' run the capture
            capturectrl.StartCapture(CaptureMode.Video)

            ' set the result
            _result = True
         Catch e1 As Exception
            _result = False
         End Try

         ' 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 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();
      public void EnterEditExample()
      {
         // reference the capture control
         CaptureCtrl capturectrl = _form.CaptureCtrl;

         // output file names
         string outFile = Path.Combine(LEAD_VARS.MediaDir,"CaptureCtrl_EnterEditExample.mpg");

         try
         {
            // enter edit mode so that all graph changes will be 
            // made at one time (after the LeaveEdit call later)
            capturectrl.EnterEdit();

            // set the source video device. use. your device's name here
            if (capturectrl.VideoDevices["USB"] == null)
               throw new Exception("No USB video device available");

            capturectrl.VideoDevices["USB"].Selected = true;

            // select a video compressor
            capturectrl.VideoCompressors.Mpeg4.Selected = true;

            // set the target file
            capturectrl.TargetFile = outFile;

            capturectrl.FrameRate = 5;       // 5 frames per second 
            capturectrl.UseFrameRate = true;
            capturectrl.TimeLimit = 10;      // just 10 seconds of capture time
            capturectrl.UseTimeLimit = true;

            // apply the graph changes now
            capturectrl.LeaveEdit();

            // run the capture
            capturectrl.StartCapture(CaptureMode.Video);

            // set the result
            _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:\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

Reference

CaptureCtrl Class
CaptureCtrl Members