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LoadSettingsFromStream Method

Summary

Loads some or all of the convert object settings from a stream.

Syntax

C++/CLI

public virtual void LoadSettingsFromStream( 
   Stream sourceStream, 
   ConvertSettings flags 
)

public: 
virtual void LoadSettingsFromStream(  
   Stream^ sourceStream, 
   ConvertSettings flags 
)

Parameters

sourceStream
The Stream from which settings will be loaded.

flags
The settings flags specifying which settings to load. See the ConvertSettings enumeration for settings options.

Remarks

Loads some or all of the convert object settings from a stream. This reconstructs the conversion configuration based on the settings saved to the stream. The convert object's settings can be saved to a stream by calling SaveSettingsToStream. Settings can be saved to a file by calling SaveSettingsToFile. Settings saved to a file can be loaded using LoadSettingsFromFile.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public ConvertCtrlForm _form = new ConvertCtrlForm(); 
public ConvertCtrl _convertctrl; 
 
public string _streamSettings = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ObjectSettingsExample_Stream.xml"); 
public string _fileSettings = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ObjectSettingsExample.xml"); 
 
public void ObjectSettingsExample() 
{ 
   // reference the play control 
   _convertctrl = _form.ConvertCtrl; 
 
   // input and output files 
   string inFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi"); 
   string outFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ObjectSettingsExample.avi"); 
 
   try 
   { 
      Processor pVideoDizzy = _convertctrl.VideoProcessors.EFXDizzy; 
      // set a video processor 
      _convertctrl.SelectedVideoProcessors.Add(pVideoDizzy); 
 
      // save the settings to a file 
      if (SaveFileSettings()) 
      { 
         // now clear the selected processors again 
         _convertctrl.SelectedVideoProcessors.Clear(); 
 
         // check whether stream file exists 
         if (File.Exists(_fileSettings)) 
         { 
            // load the saved settings from a file 
            // and check whether the processor is selected again 
            LoadFileSettings(); 
 
            // set the result  
            _result = _convertctrl.SelectedVideoProcessors.Contains(pVideoDizzy); 
         } 
      } 
 
      // save the settings to a stream 
      if (SaveStreamSettings()) 
      { 
         // now clear the selected processors again 
         _convertctrl.SelectedVideoProcessors.Clear(); 
 
         // check whether the stream file exists 
         if (File.Exists(_streamSettings)) 
         { 
            // load the saved settings from a stream  
            // and check whether the processor is selected again 
            LoadStreamSettings(); 
 
            // set the result  
            _result &= _convertctrl.SelectedVideoProcessors.Contains(pVideoDizzy); 
         } 
      } 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
 
private void LoadFileSettings() 
{ 
   _convertctrl.LoadSettingsFromFile(_fileSettings, ConvertSettings.Processors); 
} 
 
private bool SaveFileSettings() 
{ 
   //  check whether we can save the processors settings 
   if (_convertctrl.CanSaveObjectSettings(ConvertSettings.Processors)) 
   { 
      _convertctrl.SaveSettingsToFile(_fileSettings, ConvertSettings.Processors); 
      return true; 
   } 
   return false; 
} 
 
private void LoadStreamSettings() 
{ 
   Stream settings = new StreamReader(_streamSettings).BaseStream; 
   _convertctrl.LoadSettingsFromStream(settings, ConvertSettings.Processors); 
   settings.Close(); 
} 
 
private bool SaveStreamSettings() 
{ 
   //  check whether we can save the processors settings 
   if (_convertctrl.CanSaveObjectSettings(ConvertSettings.Processors)) 
   { 
      Stream settings = new StreamWriter(_streamSettings, false).BaseStream; 
      _convertctrl.SaveSettingsToStream(settings, ConvertSettings.Processors); 
      settings.Close(); 
      return true; 
   } 
   return false; 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
}

Requirements

Target Platforms

Reference

ConvertCtrl Class

ConvertCtrl Members

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Help Version 23.0.2024.2.29

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies