LockType Enumeration

C#
Visual Basic
Objective-C
Java
C++

public enum LockType : System.Enum, System.IComparable, System.IConvertible, System.IFormattable

'Declaration

Public Enum LockType 
   Inherits System.Enum
   Implements System.IComparable, System.IConvertible, System.IFormattable

'Usage

Dim instance As LockType

public enum class LockType : public System.Enum, System.IComparable, System.IConvertible, System.IFormattable

Value	Member	Description
0x00000001	Computer	Unlocks the module at the computer level. Unlocking at the computer level should be avoided because it can cause unexpected behavior in other applications.
0x00000002	Application	Unlocks the module for this instance of the application. This is the recommended value.
0x00000004	ApplicationPath	Unlocks the module for this particular application. Use this for unlocking support in a third party application (like Windows Media Player).

The MultimediaSupport.UnlockModule and MultimediaSupport.LockModules methods use a parameter of this type to indicate how to unlock or lock multimedia features.

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;
}

System.Object
   System.ValueType
      System.Enum
         Leadtools.MediaFoundation.Common.LockType

Target Platforms

Reference

Leadtools.MediaFoundation.Common Namespace