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CanSaveObjectSettings Method
See Also 
Leadtools.Multimedia Namespace > ConvertCtrl Class : CanSaveObjectSettings Method



flags
A combination of ConvertSettings enumeration values.
flags
A combination of ConvertSettings enumeration values.
Determines whether the specified settings can be saved.

Syntax

Visual Basic (Declaration) 
Public Overridable Function CanSaveObjectSettings( _
   ByVal flags As ConvertSettings _
) As Boolean
Visual Basic (Usage)Copy Code
Dim instance As ConvertCtrl
Dim flags As ConvertSettings
Dim value As Boolean
 
value = instance.CanSaveObjectSettings(flags)
C# 
public virtual bool CanSaveObjectSettings( 
   ConvertSettings flags
)
C++/CLI 
public:
virtual bool CanSaveObjectSettings( 
   ConvertSettings flags
) 

Parameters

flags
A combination of ConvertSettings enumeration values.

Return Value

true if the specified Settings can be saved; false if one or more of the settings can not be saved.

Example

Visual BasicCopy Code
Public _result As Boolean = False
      Public _form As ConvertCtrlForm = New ConvertCtrlForm()
      Public _convertctrl As ConvertCtrl
      Public _streamSettings As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ObjectSettingsExample_Stream.xml")
      Public _fileSettings As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ObjectSettingsExample.xml")

      Public Sub ObjectSettingsExample()
         ' reference the play control
         _convertctrl = _form.ConvertCtrl

         ' input and output files
         Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")
         Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ObjectSettingsExample.avi")

         Try
            Dim pVideoDizzy As Processor = _convertctrl.VideoProcessors.EFXDizzy
            ' set a video processor
            _convertctrl.SelectedVideoProcessors.Add(pVideoDizzy)

            ' save the settings to a file
            If SaveFileSettings() Then
               ' now clear the selected processors again
               _convertctrl.SelectedVideoProcessors.Clear()

               ' check if stream file exists
               If File.Exists(_fileSettings) Then
                  ' load the saved settings from a file
                  ' and check if the processor is selected again
                  LoadFileSettings()

                  ' set the result 
                  _result = _convertctrl.SelectedVideoProcessors.Contains(pVideoDizzy)
               End If
            End If

            ' save the settings to a stream
            If SaveStreamSettings() Then
               ' now clear the selected processors again
               _convertctrl.SelectedVideoProcessors.Clear()

               ' check if stream file exists
               If File.Exists(_streamSettings) Then
                  ' load the saved settings from a stream 
                  ' and check if the processor is selected again
                  LoadStreamSettings()

                  ' set the result 
                  _result = _result And _convertctrl.SelectedVideoProcessors.Contains(pVideoDizzy)
               End If
            End If
         Catch e1 As Exception
            _result = False
         End Try
      End Sub

      Private Sub LoadFileSettings()
         _convertctrl.LoadSettingsFromFile(_fileSettings, ConvertSettings.Processors)
      End Sub

      Private Function SaveFileSettings() As Boolean
         '  check if we can save the processors settings
         If _convertctrl.CanSaveObjectSettings(ConvertSettings.Processors) Then
            _convertctrl.SaveSettingsToFile(_fileSettings, ConvertSettings.Processors)
            Return True
         End If
         Return False
      End Function

      Private Sub LoadStreamSettings()
         Dim settings As Stream = New StreamReader(_streamSettings).BaseStream
         _convertctrl.LoadSettingsFromStream(settings, ConvertSettings.Processors)
         settings.Close()
      End Sub

      Private Function SaveStreamSettings() As Boolean
         '  check if we can save the processors settings
         If _convertctrl.CanSaveObjectSettings(ConvertSettings.Processors) Then
            Dim settings As Stream = New StreamWriter(_streamSettings, False).BaseStream
            _convertctrl.SaveSettingsToStream(settings, ConvertSettings.Processors)
            settings.Close()
            Return True
         End If
         Return False
      End Function

Public NotInheritable Class LEAD_VARS
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media"
End Class
C#Copy Code
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 if stream file exists
               if (File.Exists(_fileSettings))
               {
                  // load the saved settings from a file
                  // and check if 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 if stream file exists
               if (File.Exists(_streamSettings))
               {
                  // load the saved settings from a stream 
                  // and check if 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 if 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 if 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:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media";
}

Remarks

The convert 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 using the OR operator.

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

Requirements

Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7

See Also