MultimediaSupport Class

C#
Visual Basic
Objective-C
Java
C++

public static class MultimediaSupport

'Declaration

Public MustInherit NotInheritable Class MultimediaSupport

'Usage

Dim instance As MultimediaSupport

public ref class MultimediaSupport abstract sealed

This is a static class, so it does not need to be created.

This class is internally calling the DSKERNEL2.DLL ILMDSKernel2 interface. So you can either call the methods in this class or use the ILMDSKernel2 interface directly.

A typical use is to call UnlockModule when the application starts and LockModules at before the application exits.

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

Copy Code

Imports Leadtools
Imports Leadtools.MediaFoundation
Imports LeadtoolsMediaFoundationExamples.Fixtures

Public _result As Boolean = False
Public Sub MultimediaSupportExample()
       ' pszKey is a string containing the serial number. It is defined like this:
   ' Private pszKey As String = "MyString"
   Dim pszAppId As String = "My Test Application"

   Try
      ' unlock the multimedia feature
           Leadtools.MediaFoundation.Common.MultimediaSupport.UnlockModule(pszKey, _
                                                                      Leadtools.MediaFoundation.Common.LockType.Application, _
                                                                      pszAppId)
   Catch
      Exit Sub
   End Try

   ' [use the multimedia feature here]

   ' lock the multimedia feature before exiting the app
   Try
      Leadtools.MediaFoundation.Common.MultimediaSupport.LockModules(Leadtools.MediaFoundation.Common.LockType.Application, pszAppId)
      _result = True
   Catch e1 As Exception
      _result = False
   End Try
End Sub

using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;

public bool _result = false;
public void MultimediaSupportExample()
{
   // pszKey is a string containing the serial number. It is defined like this:
   // string pszKey = "MySerial";
   string pszAppId = "My Test Application";

   try
   {
      // unlock the multimedia feature
      Leadtools.MediaFoundation.Common.MultimediaSupport.UnlockModule(pszKey,
                                                                 Leadtools.MediaFoundation.Common.LockType.Application, 
                                                                 pszAppId);
   }
   catch
   {
      return;
   }

   // [use the multimedia feature here]

   // lock the multimedia feature before exiting the app
   try
   {
      Leadtools.MediaFoundation.Common.MultimediaSupport.LockModules(Leadtools.MediaFoundation.Common.LockType.Application, 
                                                                pszAppId);
   }
   catch
   {
      return;
   }
   _result = true;
}

Target Platforms

Reference

MultimediaSupport Members
Leadtools.MediaFoundation.Common Namespace