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SaveStillDIB Method

Summary

Saves a snapshot from the running stream to a file as a Device Independent Bitmap (DIB).

Syntax

C++

public virtual void SaveStillDIB( 
   string fileName, 
   int timeOut 
)

Public Overridable Sub SaveStillDIB( _ 
   ByVal fileName As String, _ 
   ByVal timeOut As Integer _ 
)

public: 
virtual void SaveStillDIB(  
   String^ fileName, 
   int timeOut 
)

Parameters

fileName
A string that represents the name to use when saving the snapshot.

timeOut
The timeout period, in milliseconds. This method will fail if it was not able to take a DIB in the specified time. Use -1 to wait indefinitely until a DIB is snapped.

Remarks

Saves a snapshot from the running stream to a file. The file is saved as a DIB using the specified filename and timeout period. This method blocks (does not return) until the timeout occurs or the DIB is snapped.

Example

using Leadtools; 
using Leadtools.MediaFoundation; 
using LeadtoolsMediaFoundationExamples.Fixtures; 
 
public PlayCtrlForm _form = new PlayCtrlForm(); 
public PlayCtrl _playctrl = null; 
 
public bool _result = false; 
string _inFile = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_Source.avi"); 
string _outFile = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_SaveStillDIB.dib"); 
 
public void SaveStillDIBExample() 
{ 
   // reference the play control 
   _playctrl = _form.PlayCtrl; 
 
   try 
   { 
      // set a timer on the form to make the still DIB 
      _form.TestTimer.Interval = 5000; 
      _form.TestTimer.Tick += new EventHandler(SaveStillDIB_Helper); 
 
      // set the source and target files 
      _playctrl.SourceFile = _inFile; 
 
      // now start the test timer for the still DIB capture 
      _form.TestTimer.Start(); 
   } 
   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 (_playctrl.State == PlayState.Running) 
      Application.DoEvents(); 
} 
 
public void SaveStillDIB_Helper(object sender, EventArgs e) 
{ 
   // cancel the timer 
   _form.TestTimer.Stop(); 
 
   // save the still DIB to a file 
   _playctrl.SaveStillDIB(_outFile, -1); 
 
   // check for the capture file and set the result 
   if (File.Exists(Path.Combine(Directory.GetCurrentDirectory(), _outFile))) 
      _result = true; 
 
   // stop playback 
   _playctrl.Stop(); 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 20\Media"; 
}

Imports Leadtools 
Imports Leadtools.MediaFoundation 
Imports LeadtoolsMediaFoundationExamples.Fixtures 
 
Public _form As PlayCtrlForm = New PlayCtrlForm() 
Public _playctrl As PlayCtrl = Nothing 
 
Public _result As Boolean = False 
Private _inFile As String = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_Source.avi") 
Private _outFile As String = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_SaveStillDIB.dib") 
 
Public Sub SaveStillDIBExample() 
   ' reference the play control 
   _playctrl = _form.PlayCtrl 
 
   Try 
      ' set a timer on the form to make the still DIB 
      _form.TestTimer.Interval = 5000 
      AddHandler _form.TestTimer.Tick, AddressOf SaveStillDIB_Helper 
 
      ' set the source and target files 
      _playctrl.SourceFile = _inFile 
 
      ' now start the test timer for the still DIB capture 
      _form.TestTimer.Start() 
   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 _playctrl.State = PlayState.Running 
      Application.DoEvents() 
   Loop 
End Sub 
 
Public Sub SaveStillDIB_Helper(ByVal sender As Object, ByVal e As EventArgs) 
   ' cancel the timer 
   _form.TestTimer.Stop() 
 
   ' save the still DIB to a file 
   _playctrl.SaveStillDIB(_outFile, -1) 
 
   ' check for the capture file and set the result 
   If File.Exists(Path.Combine(Directory.GetCurrentDirectory(), _outFile)) Then 
      _result = True 
   End If 
 
   ' stop playback 
   _playctrl.Stop() 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 20\Media" 
End Class

Requirements

Target Platforms

Reference

PlayCtrl Class

PlayCtrl Members

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Help Version 20.0.2020.4.2

Leadtools.MediaFoundation Assembly

Introduction

Getting Started

Namespaces

Leadtools.MediaFoundation Namespace

Leadtools.MediaFoundation.Common Namespace

Assemblies