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The SAMPR_ENUMERATION_BUFFER structure holds an array of SAMPR_RID_ENUMERATION elements.

 typedef struct _SAMPR_ENUMERATION_BUFFER {
   unsigned long EntriesRead;
   [size_is(EntriesRead)] PSAMPR_RID_ENUMERATION Buffer;
 } SAMPR_ENUMERATION_BUFFER,
  *PSAMPR_ENUMERATION_BUFFER;

EntriesRead: The number of elements in Buffer. If zero, Buffer MUST be ignored. If nonzero, Buffer MUST point to at least EntriesRead * sizeof(SAMPR_RID_ENUMERATION) bytes of memory.

Buffer: An array of SAMPR_RID_ENUMERATION elements.