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WMRMHeader.ContentID

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WMRMHeader.ContentID

The ContentID property specifies and retrieves the ID of the encrypted content.

Syntax

  WMRMHeader
  .ContentID
  
  =
  
  String
String
  
  =
  
  ContentID

Parameters

This property takes no parameters.

Return Values

If the property succeeds, it returns a String containing the content ID. If it fails, it returns a number in the error object.

Return code Description
0x80004005 An unspecified error occurred.
0x80070057 The specified parameter is not valid.

Remarks

The content ID is optional but recommended. It is also recommended that you use WMRMKeys.GenerateKeyID to create a globally unique identifier (GUID) to ensure that the content ID is unique. You can also use the GenerateKeyID method to create a standard key ID. The content ID is not required by Windows Media Rights Manager.

Example Code

      Dim sKID, sCID, sSeed, sKey, sHeader
    Dim sPrivKey, sPubKey
    Dim HeaderObj
    Dim KeysObj
    Dim ProtectObj

' Create objects.

    Set HeaderObj = Server.CreateObject("Wmrmobjs.WMRMHeader")
    Set KeysObj = Server.CreateObject("Wmrmobjs.WMRMKeys")
    Set ProtectObj = Server.CreateObject("Wmrmobjs.WMRMProtect")




















' Require individualization version 2.2.
' Version numbers change. Verify number before using.

.IndividualizedVersion="2.2"
















HeaderObj.SetCheckSum(sKey)

' Replace XXX with the packaging server's private key. 

    = "XXX"

' Sign the header.



' Retrieve the string containing the header.

    sHeader = HeaderObj.Header

' Set the header string into the WMRMProtect object.

    ProtectObj.Header = sHeader

' Set the key into the WMRMProtect object.

    ProtectObj.Key = sKey

' Specify the name of the file to be protected.

    ProtectObj.InputFile = "c:\input_file.wmv"

' Generate a protected file.

    ProtectObj.ProtectFile("c:\output_file_1.wmv")

Requirements

Version: Windows Media Rights Manager 7 SDK or later

Reference: wmrmobjs 1.0 Type Library

Library: wmrmobjs.dll

Platform: Windows Server 2003

See Also

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