GetMerit Method

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public int GetMerit( 
   string Name
)

'Declaration
 
Public Function GetMerit( _
   ByVal Name As String _
) As Integer

'Usage
 
Dim instance As FilterEnum
Dim Name As String
Dim value As Integer
 
value = instance.GetMerit(Name)

public int GetMerit( 
   string Name
)

 function Leadtools.Multimedia.FilterEnum.GetMerit( 
   Name 
)

public:
int GetMerit( 
   String^ Name
)

Parameters

Name: String used as the Display Name or Friendly Name of the filter. It is best to use the "Display Name" since it is unique and no two filters can have the same Display Name. On the contrary, two or more filters can have the same Friendly Name. If two or more filters have the same Friendly Name, this function works on the first filter it internally enumerates with the specified friendly name.

Return Value

An integer value that represents the merit of a DirectShow filter.

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 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 one or more filters can have 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"

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

Copy 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

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 whether the value has been set correctly
      _result = (currentMerit == newMerit) ? true : false;
   }
   catch (Exception)
   {
      _result = false;
   }
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

FilterEnum Class
FilterEnum Members