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CaptureStillDelay Property
See Also 
Leadtools.Multimedia Namespace > CaptureCtrl Class : CaptureStillDelay Property



Gets or sets the time delay, in milliseconds, before capturing a DIB or a Picture.

Syntax

Visual Basic (Declaration) 
Public Overridable Property CaptureStillDelay As Integer
Visual Basic (Usage)Copy Code
Dim instance As CaptureCtrl
Dim value As Integer
 
instance.CaptureStillDelay = value
 
value = instance.CaptureStillDelay
C# 
public virtual int CaptureStillDelay {get; set;}
C++/CLI 
public:
virtual property int CaptureStillDelay {
   int get();
   void set (    int value);
}

Property Value

A value representing the capture time delay in milliseconds.

Example

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

         ' output file
         Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_CaptureStillDelayExample.jpg")

         Try
            ' set the video capture device, use your capture 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

            ' set the still capture delay
            capturectrl.CaptureStillDelay = 1000

            ' set the capture mode to still and start
            capturectrl.StartCapture(CaptureMode.Still)

            ' get a still image
            Dim image As Image = capturectrl.CaptureImage()
            If Not image Is Nothing Then
               image.Save(outFile, ImageFormat.Jpeg)
            End If

            ' stop the capture
            capturectrl.StopCapture()

            ' check for the capture file and set the result
            If File.Exists(Path.Combine(Directory.GetCurrentDirectory(), outFile)) Then
               _result = True
            End If
         Catch e1 As Exception
            _result = False
         End Try
      End Sub

Public NotInheritable Class LEAD_VARS
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media"
End Class
C#Copy Code
public bool _result = false;
      public CaptureCtrlForm _form = new CaptureCtrlForm();
      public void CaptureStillDelayExample()
      {
         // reference the capture control
         CaptureCtrl capturectrl = _form.CaptureCtrl;

         // output file
         string outFile = Path.Combine(LEAD_VARS.MediaDir,"CaptureCtrl_CaptureStillDelayExample.jpg");

         try
         {
            // set the video capture device, use your capture device name here
            if (capturectrl.VideoDevices["USB"] == null)
               throw new Exception("No USB video device available");

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

            // set the still capture delay
            capturectrl.CaptureStillDelay = 1000;

            // set the capture mode to still and start
            capturectrl.StartCapture(CaptureMode.Still);

            // get a still image
            Image image = capturectrl.CaptureImage();
            if (image != null)
               image.Save(outFile, ImageFormat.Jpeg);

            // stop the capture
            capturectrl.StopCapture();

            // check for the capture file and set the result
            if (File.Exists(Path.Combine(Directory.GetCurrentDirectory(), outFile)))
               _result = true;
         }
         catch (Exception)
         {
            _result = false;
         }
      }

static class LEAD_VARS
{
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media";
}

Remarks

Call the CaptureDIB or CaptureImage methods to capture a still image using this capture time delay after the capture graph is started.

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also