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Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here.


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Indicates where in a message thread a message belongs.

Header file:


Implemented by:


Called by:

Client applications and service providers

SCODE ScCreateConversationIndex(
  ULONG cbParent,
  LPBYTE lpbParent,
  ULONG FAR* lpcbIndex,
  LPBYTE FAR * lppbIndex


[in] Count of bytes in the parent conversation index.


[in] Pointer to bytes in the parent conversation index. This may be NULL if cbParent is zero.


[out] Pointer to the count of bytes in the new conversation index returned by the call.


[out] Pointer to a pointer to the new conversation index returned by the call.


The call succeeded and has returned the expected value or values.

© 2015 Microsoft