ILMDSKernel2::UnlockModule

#include "ILMDSKernel2.h"
 

 

C Syntax

HRESULT ILMDSKernel2_UnlockModule(pDSKrn, Key, Flags, AppID)

C++ Syntax

HRESULT UnlockModule(BSTR Key, long Flags, BSTR AppID)

VB Syntax

object.UnlockModule(Key As String, Flags As Long, AppID As String) As Long

 

ILMDSKernel2 *pDSKrn;

/* pointer to an interface */

BSTR Key;

 /* serial number */

long Flags;

 /* flags */

BSTR AppID;

/* calling application ID */

Unlocks a specific module, or group of modules (depending on the serial number, or Key).

Parameter

Description

pDSKrn

Pointer to an ILMDSKernel2 interface.

Key

A string that represents the module serial number. This parameter cannot be NULL (empty).

Flags

One of the UnLockFlagsConstants2 enumeration values that specify the level at which the unlocking operation will be performed.

AppID

The application ID; a unique ID of the calling application. The caller is responsible for uniqueness of this ID. It is recommended to use a globally unique ID (GUID). This parameter cannot be NULL (empty).

Returns

S_OK

The function ran successfully.

<> S_OK

An error occurred. Refer to theError Codes  or the HRESULT error codes in the DirectShow documentation.

Comments

Use this function to change the state for the modules that are unlocked to Release. Please note the following:

The Key is a unique module serial number that must be purchased from LEAD.

It may be necessary to call the function several times to unlock several toolkits (or functionalities).

Each module has its own key, but some keys can unlock more than one filter/module.

The AppID is used to uniquely identify the calling application.

Required DLLs and Libraries

DSKernel2.dll

See Also

Elements:

ILMDSKernel2::LockModules

Example

For an example, refer to Using the DSKernel Object.