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CanSaveObjectSettings Method

Summary

Determines whether the specified settings can be saved.

Syntax

C++/CLI

public virtual bool CanSaveObjectSettings( 
   CaptureSettings flags 
)

public: 
virtual bool CanSaveObjectSettings(  
   CaptureSettings flags 
)

Parameters

flags
A combination of CaptureSettings enumeration values.

Remarks

The capture object settings can be saved to a stream by calling SaveSettingsToStream. These settings can also be saved to a file by calling SaveSettingsToFile. Settings saved to a file can be loaded using LoadSettingsFromFile. Settings saved to a stream can be loaded using LoadSettingsFromStream. It may be helpful to call CanSaveObjectSettings before calling either SaveSettingsToFile or SaveSettingsToStream, to make sure the settings you want to save can be saved. If either SaveSettingsToFile or SaveSettingsToStream is called for settings that cannot be saved, the save function will fail. Multiple settings can be combined in the Flags parameter.

Note: If multiple settings are combined in the flags parameter, all those settings must be capable of being saved in order for this method to return true.

Example

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

Requirements

Target Platforms

Reference

CaptureCtrl Class

CaptureCtrl 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