Constants.PreferredFilters Class

The PreferredFilters static class contains constant string values for predefined values that can be used to identify preferred filters.

It contains the "Don't Care", "LEAD Default" strings as well as defines for the display names of the most common LEAD filters.

Object Model

Syntax

C#
Visual Basic
Objective-C
Java
C++

public static class Constants.PreferredFilters

'Declaration

Public MustInherit NotInheritable Class Constants.PreferredFilters

'Usage

Dim instance As Constants.PreferredFilters

public ref class Constants.PreferredFilters abstract sealed

Remarks

The constants in this class are designed to be used with the ConvertCtrl.SetPreferredFilter, ConvertCtrl.GetPreferredFilter, PlayCtrl.GetPreferredFilter and PlayCtrl.SetPreferredFilter methods.

Example

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures

Public _result As Boolean = False
Public _form As PlayCtrlForm = New PlayCtrlForm()
Public Sub PlayerPreferredFiltersExample()
   Try
      ' reference the forms capture control
      Dim playctrl As PlayCtrl = _form.PlayCtrl

      ' set the preferred mpeg2 decoder to the LEAD default (which is the LEAD MPEG2 Decoder)
      playctrl.SetPreferredFilter(PreferredFilter.MPEG2Decompressor, _
                                  Leadtools.Multimedia.Constants.PreferredFilters.LEADDefault)

      ' the default mpeg2 decoder should be the LEAD MPEG2 decoder now
      ' the filter names are not case sensitive, so do ignore the case in the compare
      _result = (String.Compare(playctrl.GetPreferredFilter(PreferredFilter.MPEG2Decompressor), _
                                Leadtools.Multimedia.Constants.PreferredFilters.MPEG2Decompressor, True) = 0)
   Catch e1 As Exception
      _result = False
   End Try
End Sub

using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;

public bool _result = false;
public PlayCtrlForm _form = new PlayCtrlForm();
public void PlayerPreferredFiltersExample()
{
   PlayCtrl playctrl = _form.PlayCtrl;

   try
   {
      // set the preferred mpeg2 decoder to the LEAD default (which is the LEAD MPEG2 Decoder)
      playctrl.SetPreferredFilter(PreferredFilter.MPEG2Decompressor, Constants.PreferredFilters.LEADDefault);

      // the default mpeg2 decoder should be the LEAD MPEG2 decoder now
      // the filter names are not case sensitive, so ignore case in the compare
      _result = (string.Compare(playctrl.GetPreferredFilter(PreferredFilter.MPEG2Decompressor),
                 Constants.PreferredFilters.MPEG2Decompressor, true) == 0);
   }
   catch (Exception)
   {
      _result = false;
   }
}

Requirements

Target Platforms

Reference

Constants.PreferredFilters Members
Leadtools.Multimedia Namespace
GetPreferredFilter Method
SetPreferredFilter Method
GetPreferredFilter Method
SetPreferredFilter Method