pRecord (PRECORDCORE)

      Pointer to the RECORDCORE structure that is to be collapsed.

      If this is NULL, all expanded parent items are collapsed.

      Note: If the CCS_MINIRECORDCORE style bit is specified when a container is created, then MINIRECORDCORE should be used instead of RECORDCORE and PMINIRECORDCORE should be used instead of PRECORDCORE in all applicable data structures and messages.

    ulReserved (ULONG)

      Reserved value, should be 0.

    rc (BOOL)

      Success indicator.

      TRUE

        The item was successfully collapsed.
      FALSE
        An error occurred. The WinGetLastError function may return the following error:
          PMERR_INVALID_PARAMETERS.

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