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LoadSettingsFromFile Method

Summary

Loads some or all of the play object settings from a file.

Syntax

C++/CLI

public virtual void LoadSettingsFromFile( 
   string sourceFile, 
   PlaySettings flags 
)

public: 
virtual void LoadSettingsFromFile(  
   String^ sourceFile, 
   PlaySettings flags 
)

Parameters

sourceFile
The file from which settings will be loaded.

flags
The PlaySettings enumeration values specifying which settings to load.

Remarks

This reconstructs the play configuration using the settings found in the file. The play object settings can be saved to a file by calling SaveSettingsToFile, or to a stream by calling SaveSettingsToStream. If either PlayCtrl.SaveSettingsToFile or PlayCtrl.SaveSettingsToStream is called for settings that cannot be saved, the save method will fail. Call CanSaveObjectSettings before calling the save methods to make sure the settings can be saved. Saved settings can be loaded using the LoadSettingsFromStream method.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public PlayCtrlForm _form = new PlayCtrlForm(); 
public PlayCtrl _playctrl; 
 
public string _streamSettings = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_ObjectSettingsExample_Stream.xml"); 
public string _fileSettings = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_ObjectSettingsExample.xml"); 
 
public void ObjectSettingsExample() 
{ 
   // reference the play control 
   _playctrl = _form.PlayCtrl; 
 
   // input files 
   string inFile = Path.Combine(LEAD_VARS.MediaDir, "PlayCtrl_Source.avi"); 
 
   try 
   { 
      Processor pVideoDizzy = _playctrl.VideoProcessors.EFXDizzy; 
      // set a video processor 
      _playctrl.SelectedVideoProcessors.Add(pVideoDizzy); 
 
      // save the settings to a file 
      if (SaveFileSettings()) 
      { 
         // now clear the selected processors again 
         _playctrl.SelectedVideoProcessors.Clear(); 
 
         // check whether a 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 = _playctrl.SelectedVideoProcessors.Contains(pVideoDizzy); 
         } 
      } 
 
      // save the settings to a stream 
      if (SaveStreamSettings()) 
      { 
         // now clear the selected processors again 
         _playctrl.SelectedVideoProcessors.Clear(); 
 
         // check whether a 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 &= _playctrl.SelectedVideoProcessors.Contains(pVideoDizzy); 
         } 
      } 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
} 
 
private void LoadFileSettings() 
{ 
   _playctrl.LoadSettingsFromFile(_fileSettings, PlaySettings.Processors); 
} 
 
private bool SaveFileSettings() 
{ 
   //  check whether we can save the processors settings 
   if (_playctrl.CanSaveObjectSettings(PlaySettings.Processors)) 
   { 
      _playctrl.SaveSettingsToFile(_fileSettings, PlaySettings.Processors); 
      return true; 
   } 
   return false; 
} 
 
private void LoadStreamSettings() 
{ 
   Stream settings = new StreamReader(_streamSettings).BaseStream; 
   _playctrl.LoadSettingsFromStream(settings, PlaySettings.Processors); 
   settings.Close(); 
} 
 
private bool SaveStreamSettings() 
{ 
   //  check whether we can save the processors settings 
   if (_playctrl.CanSaveObjectSettings(PlaySettings.Processors)) 
   { 
      Stream settings = new StreamWriter(_streamSettings, false).BaseStream; 
      _playctrl.SaveSettingsToStream(settings, PlaySettings.Processors); 
      settings.Close(); 
      return true; 
   } 
   return false; 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS22\Media"; 
}

Requirements

Target Platforms

Reference

PlayCtrl Class

PlayCtrl Members

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Help Version 22.0.2022.12.7

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies