- 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).
Visual Basic (Declaration) | |
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Public Shared Sub LockModules( _ ByVal type As LockType, _ ByVal appId As String _ ) |
Visual Basic (Usage) | Copy Code |
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Dim type As LockType Dim appId As String MultimediaSupport.LockModules(type, 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).
Visual Basic | Copy Code |
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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 |
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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; } |
- When the application terminates, if unlocking was performed at the application level using LockType.Application.
- When uninstalling the application, if unlocking was performed at the computer level using LockType.Computer or LockType.ApplicationPath.
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7