LEADTOOLS Multimedia (Leadtools.Multimedia assembly) Send comments on this topic. | Back to Introduction | Help Version 17.0.3.22
LockModules Method
See Also 
Leadtools.Multimedia.Common Namespace > MultimediaSupport Class : LockModules Method



type
One of the LockType enumeration values that specify the level at which the locking operation will be performed. It should be the same value passed to MultimediaSupport.UnlockModule.
appId
If type is set to LockType.Application or LockType.Computer, appId should be the application ID; a unique ID of the calling application. The caller is responsible for uniqueness of this ID. It is recommended to use the full path of the application.

If type is set to LockType.ApplicationPath, appId should be the application full path of the application (the long version, not the short 8.3 version of the path).

This parameter cannot be NULL (empty).

type
One of the LockType enumeration values that specify the level at which the locking operation will be performed. It should be the same value passed to MultimediaSupport.UnlockModule.
appId
If type is set to LockType.Application or LockType.Computer, appId should be the application ID; a unique ID of the calling application. The caller is responsible for uniqueness of this ID. It is recommended to use the full path of the application.

If type is set to LockType.ApplicationPath, appId should be the application full path of the application (the long version, not the short 8.3 version of the path).

This parameter cannot be NULL (empty).

Locks all modules of the same appId that were unlocked using MultimediaSupport.UnlockModule.

Syntax

Visual Basic (Declaration) 
Public Shared Sub LockModules( _
   ByVal type As LockType, _
   ByVal appId As String _
) 
Visual Basic (Usage)Copy Code
Dim type As LockType
Dim appId As String
 
MultimediaSupport.LockModules(type, appId)
C# 
public static void LockModules( 
   LockType type,
   string appId
)
C++/CLI 
public:
static void LockModules( 
   LockType type,
   String^ appId
) 

Parameters

type
One of the LockType enumeration values that specify the level at which the locking operation will be performed. It should be the same value passed to MultimediaSupport.UnlockModule.
appId
If type is set to LockType.Application or LockType.Computer, appId should be the application ID; a unique ID of the calling application. The caller is responsible for uniqueness of this ID. It is recommended to use the full path of the application.

If type is set to LockType.ApplicationPath, appId should be the application full path of the application (the long version, not the short 8.3 version of the path).

This parameter cannot be NULL (empty).

Example

Visual BasicCopy Code
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.Multimedia.Common.MultimediaSupport.UnlockModule(pszKey, Leadtools.Multimedia.Common.LockType.Application, pszAppId)
   Catch
      Exit Sub
   End Try

   ' [use the multimedia feature here]

   ' lock the multimedia feature before exiting the app
   Try
      Leadtools.Multimedia.Common.MultimediaSupport.LockModules(Leadtools.Multimedia.Common.LockType.Application, pszAppId)
      _result = True
   Catch e1 As Exception
      _result = False
   End Try
End Sub
C#Copy Code
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.Multimedia.Common.MultimediaSupport.UnlockModule(pszKey, Leadtools.Multimedia.Common.LockType.Application, pszAppId);
   }
   catch
   {
      return;
   }

   // [use the multimedia feature here]

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

Remarks

You must call LockModules:

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