LEADTOOLS Multimedia (Leadtools.Multimedia assembly)

SaveStillDIB Method (CaptureCtrl)

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Example 



A string that represents the filename to which to save the DIB.
The timeout period in milliseconds. This method fails if it is not able to take the DIB in the specified time. Use -1 to wait infinitely until a DIB is snapped.
Saves a snapshot from the running stream to a file as a device-independent bitmap(DIB).
Syntax
'Declaration
 
Public Overridable Sub SaveStillDIB( _
   ByVal fileName As String, _
   ByVal timeOut As Integer _
) 
'Usage
 
Dim instance As CaptureCtrl
Dim fileName As String
Dim timeOut As Integer
 
instance.SaveStillDIB(fileName, timeOut)
public virtual void SaveStillDIB( 
   string fileName,
   int timeOut
)
public:
virtual void SaveStillDIB( 
   String^ fileName,
   int timeOut
) 

Parameters

fileName
A string that represents the filename to which to save the DIB.
timeOut
The timeout period in milliseconds. This method fails if it is not able to take the DIB in the specified time. Use -1 to wait infinitely until a DIB is snapped.
Remarks
Saves a snapshot, as a DIB, from the running stream to the specified filename. This method will not return until the specified timeout occurs or the DIB is snapped.
Example
Copy Code  
Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures

Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public _capturectrl As CaptureCtrl = Nothing
Public _result As Boolean = False
Private _dibFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_SaveStillDIB.dib")

Public Sub SaveStillDIBExample()
   ' reference the capture control
   _capturectrl = _form.CaptureCtrl

   Try
      ' select a video capture device
      If _capturectrl.VideoDevices("USB") Is Nothing Then
         Throw New Exception("No USB video device available")
      End If

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

      ' set a video compressor for the capture file
      _capturectrl.VideoCompressors.Mpeg4.Selected = True

      ' start the capture
      _capturectrl.StartCapture(CaptureMode.Still)

      ' save the still DIB to a file
      _capturectrl.SaveStillDIB(_dibFile, -1)

      ' stop the capture
      _capturectrl.StopCapture()

      ' check for the capture file and set the result
      If File.Exists(Path.Combine(Directory.GetCurrentDirectory(), _dibFile)) 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 18\Media"
End Class
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;

public CaptureCtrlForm _form = new CaptureCtrlForm();
public CaptureCtrl _capturectrl = null;
public bool _result = false;
string _dibFile = Path.Combine(LEAD_VARS.MediaDir,"CaptureCtrl_SaveStillDIB.dib");

public void SaveStillDIBExample()
{
   // reference the capture control
   _capturectrl = _form.CaptureCtrl;

   try
   {
      // select a video capture device
      if (_capturectrl.VideoDevices["USB"] == null)
         throw new Exception("No USB video device available");

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

      // set a video compressor for the capture file
      _capturectrl.VideoCompressors.Mpeg4.Selected = true;

      // start the capture
      _capturectrl.StartCapture(CaptureMode.Still);

      // save the still DIB to a file
      _capturectrl.SaveStillDIB(_dibFile, -1);

      // stop the capture
      _capturectrl.StopCapture();

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

static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 18\Media";
}
Requirements

Target Platforms

See Also

Reference

CaptureCtrl Class
CaptureCtrl Members

 

 


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Leadtools.Multimedia requires a Multimedia or Multimedia Suite license and unlock key. For more information, refer to: LEADTOOLS Toolkit Features