Missing WMCreateWriter in wmvcore.lib

HRESULT STDMETHODCALLTYPE WMCreateWriter( IUnknown* pUnkCert, IWMWriter **ppWriter ); 
, documented as such:
 
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wmform95/htm/wmcreatewriter.asp 
 
,and exported from wmvcore.dll:
Microsoft (R) COFF/PE Dumper Version 8.00.50727.42 Copyright (C) Microsoft Corporation. All rights reserved. Dump of file c:\winnt\system32\wmvcore.dll File Type: DLL Section contains the following exports for WMVCore.DLL ordinal hint RVA name 8 0 00021EEA DllRegisterServer 1 1 0002E9D1 WMCheckURLExtension 2 2 0002EA56 WMCheckURLScheme 9 3 000FB05E WMCreateBackupRestorer 3 4 000FAFEB WMCreateBackupRestorerPrivate 10 5 000F1A1B WMCreateEditor 11 6 000F8E32 WMCreateIndexer 4 7 000FB68F WMCreateLicenseRevocationAgentPrivate 12 8 000D5ED5 WMCreateProfileManager 13 9 00022DE8 WMCreateReader 14 A 00022D43 WMCreateReaderPriv 15 B 0002B562 WMCreateSyncReader 5 C 0002B501 WMCreateSyncReaderPriv 16 D 000854AD WMCreateWriter 17 E 0009F355 WMCreateWriterFileSink 18 F 000A1049 WMCreateWriterNetworkSink 19 10 00085457 WMCreateWriterPriv 20 11 000AAD51 WMCreateWriterPushSink 6 12 0003570F WMIsAvailableOffline 21 13 00023117 WMIsContentProtected 7 14 0002E925 WMValidateDataAnybody else cares to comment? 
A.M. at 2007-9-10 > 

I'm looking at the version of wmvcore.dll that comes with Windows Vista Beta 2, and I see that WMCreateWriter is exported from wmvcore.dll; it's ordinal 16.

I might recommend trying to build the various PSDK samples for wmvcore, such as wmvcopy; if that works and runs, then try to follow what it does in terms of linking. It's possible that you're just not linking in the right libs.

Hope that helps, and good luck!

Becky

BeckyWeiss-MSFT at 2007-9-10 >

Among the code samples that your SDK, you should see a sample called WMVCopy, and this one calls WMCreateWriter. Do you see it? If you do, can you try building it?

BeckyWeiss-MSFT at 2007-9-10 >

You're right, there is an old version of wmvcore.lib in the DirectShow samples directory (under Samples\Multimedia\DirectShow\Common). That version does not export WMCreateWriter.

Apparently that file was originally shipped in the DirectX SDK to make a couple of the DShow samples build without needing to install the Windows Media Format SDK. When DShow was moved to the PSDK, that file was carried over. But as far as I can tell, none of the DShow samples in the PSDK actually link to that file, so it should probably have been removed from the PSDK.

In any case, you can get the correct version of wmvcore.lib by installing the Format SDK 9.5 from http://msdn.microsoft.com/windowsmedia/downloads/.

Or you can install the Vista B2 PSDK, which has all of the latest Format SDK headers/libs.

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Mike Wasson, DirectShow SDK Documentation
This posting is provided "AS IS" with no warranties, and confers no rights. You assume all risk for your use.

(c) 2006 Microsoft Corporation. All rights reserved.

MikeWasson-MSFT at 2007-9-10 >

I just happen to know some of the convoluted history of the DShow SDK. :-)

I'm not sure about the Format SDK issue you're seeing, but I'll see if I can track down an answer.

-
Mike Wasson, DirectShow SDK Documentation
This posting is provided "AS IS" with no warranties, and confers no rights. You assume all risk for your use.

(c) 2006 Microsoft Corporation. All rights reserved.

MikeWasson-MSFT at 2007-9-10 >

I have code that was working and now it appears that there is no way to compile/link this code. Can you (i.e. MS) just post the import library for now, so that people like myself would be able to at least build our existing code until you sort out this issue?

BTW, this looks like a blunder on MS' part. How can one forget to ship a library?

A.M. at 2007-9-10 >