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Q129954: DOCERR: ICM_DECOMPRESSEX_QUERY dwParam1 and dwParam2 Incorrect

Article: Q129954
Product(s): Microsoft Windows Software Development Kit
Version(s): WINDOWS:3.1; :1.1
Operating System(s): 
Keyword(s): 
Last Modified: 12-NOV-1999

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The information in this article applies to:

- Microsoft Windows Software Development Kit (SDK) 3.1 
- Microsoft Video for Windows Development Kit, version 1.1 
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SUMMARY
=======

The online help (DK_DOC.HLP or DK_DOC.MVB) in the Microsoft Video for Windows DK
incorrectly documents the ICM_DECOMPRESSEX_QUERY message. The incorrect
documentation states the following:

  dwParam1 - Specifies a far pointer to an ICDECOMPRESSEX data structure
  describing the input format.

  dwParam2 - Specifies zero or a far pointer to an ICDECOMPRESSEX data
  structure used to return the output format. Zero indicates that any output
  format is acceptable.

The correct documentation for this message is listed below:

  dwParam1 - Specifies zero or a far pointer to an ICDECOMPRESSEX data
  structure used to return the output format. Zero indicates that any output
  format is acceptable.

  dwParam2 - Contains the size in bytes of the structure pointed to by
  dwParam1.

The ICSAMPLE sample code from the Microsoft Video for Windows DK correctly
handles the ICM_DECOMPRESSEX_QUERY message.

NOTE: The similarly named ICM_DECOMPRESS_QUERY message is documented correctly.

Additional query words: 3.10 1.10 installable compression manager ICM codec compressor decompressor VfWDK

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Keywords          :  
Technology        : kbAudDeveloper kbWin3xSearch kbVideoSearch kbSDKSearch kbWinSDKSearch kbWinSDK310 kbVideoDK110
Version           : WINDOWS:3.1; :1.1

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