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SetMerit Method
See Also 
Leadtools.Multimedia Namespace > FilterEnum Class : SetMerit Method



Name
string to the Display Name or Friendly Name of the filter. It is always preferred to use "Display Name" since it is unique and no two filters can have the same Display Name. On the contrary, two filters or more might have the same Friendly Name. In this case this function will work on the first filter it internally enumerate with the specified friendly name.
Value
A new merit value for the specified DirectShow filter.
Name
string to the Display Name or Friendly Name of the filter. It is always preferred to use "Display Name" since it is unique and no two filters can have the same Display Name. On the contrary, two filters or more might have the same Friendly Name. In this case this function will work on the first filter it internally enumerate with the specified friendly name.
Value
A new merit value for the specified DirectShow filter.
Sets DirectShow filter Merit.

Syntax

Visual Basic (Declaration) 
Public Sub SetMerit( _
   ByVal Name As String, _
   ByVal Value As Integer _
)
Visual Basic (Usage)Copy Code
Dim instance As FilterEnum
Dim Name As String
Dim Value As Integer
 
instance.SetMerit(Name, Value)
C# 
public void SetMerit( 
   string Name,
   int Value
)
C++/CLI 
public:
void SetMerit( 
   String^ Name,
   int Value
)

Parameters

Name
string to the Display Name or Friendly Name of the filter. It is always preferred to use "Display Name" since it is unique and no two filters can have the same Display Name. On the contrary, two filters or more might have the same Friendly Name. In this case this function will work on the first filter it internally enumerate with the specified friendly name.
Value
A new merit value for the specified DirectShow filter.

Example

Visual BasicCopy Code
Public _result As Boolean = False
Public _form As ConvertCtrlForm = New ConvertCtrlForm()
Public Sub FilterEnumMeritExample()
    Try
        ' Create an object instance of FilterEnum
        Dim filterEnum As FilterEnum = New FilterEnum

        ' Get LEAD H264 Decoder/Decompressor Merit
        Dim currentMerit As Integer = filterEnum.GetMerit(Leadtools.Multimedia.Constants.PreferredFilters.H264Decompressor)

        ' Increase the value by "one"
        Dim newMerit As Integer = currentMerit + 1

        ' Set the new merit value to LEAD H264 Decoder/Decompressor
        filterEnum.SetMerit(Leadtools.Multimedia.Constants.PreferredFilters.H264Decompressor, newMerit)

        ' Get the merit value again
        currentMerit = filterEnum.GetMerit(Leadtools.Multimedia.Constants.PreferredFilters.H264Decompressor)

        ' Check and see if the value has been set correctly
        If currentMerit = newMerit Then
            _result = True
        Else
            _result = False
        End If

    Catch e1 As Exception
        _result = False
    End Try
End Sub
C#Copy Code
public bool _result = false;
public ConvertCtrlForm _form = new ConvertCtrlForm();
public void FilterEnumMeritExample()
{
   FilterEnum filterEnum = new FilterEnum();

   try
   {
      // Get LEAD H264 Decoder/Decompressor Merit
      int currentMerit = filterEnum.GetMerit(Constants.PreferredFilters.H264Decompressor);

      // Increase the value by "one"
      int newMerit = currentMerit + 1;

      // Set the new merit value to LEAD H264 Decoder/Decompressor
      filterEnum.SetMerit(Constants.PreferredFilters.H264Decompressor, newMerit);

      // Get the merit value again
      currentMerit = filterEnum.GetMerit(Constants.PreferredFilters.H264Decompressor);

      // Check and see if the value has been set correctly
      _result = (currentMerit == newMerit) ? true : false;
   }
   catch (Exception)
   {
      _result = false;
   }
}

Remarks

For more information, refer to the Microsoft documentation for DirectShow Merits http://msdn.microsoft.com/en-us/library/dd390674(VS.85).aspx http://msdn.microsoft.com/en-us/library/aa920889.aspx http://msmvps.com/blogs/chrisl/articles/40395.aspx A Display Name uniquely identifies a Directshow filter (or any filter). Display names for a software filters have the following format: @device:sw:GUID\\GUID, example: Microsoft’s “MPEG-2 Splitter” display name is: @device:sw:{083863F1-70DE-11D0-BD40-00A0C911CE86}\\{3AE86B20-7BE8-11D1-ABE6-00A0C905F375}. A Friendly Name is not unique and there might be one or more filters with the same name. However, it is ideal for presenting a descriptive name in user interfaces. For example the Friendly Name for Microsoft’s MPEG-2 Splitter is "MPEG-2 Splitter"

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