JetCreateIndex2W

// ESENT.dll  (Unicode / -W)
#include <windows.h>

INT JetCreateIndex2W(
    JET_SESID sesid,
    JET_TABLEID tableid,
    JET_INDEXCREATE_W* pindexcreate,
    DWORD cIndexCreate
);

<DllImport("ESENT.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function JetCreateIndex2W(
    sesid As UIntPtr,   ' JET_SESID
    tableid As UIntPtr,   ' JET_TABLEID
    pindexcreate As IntPtr,   ' JET_INDEXCREATE_W*
    cIndexCreate As UInteger   ' DWORD
) As Integer
End Function

' sesid : JET_SESID
' tableid : JET_TABLEID
' pindexcreate : JET_INDEXCREATE_W*
' cIndexCreate : DWORD
Declare PtrSafe Function JetCreateIndex2W Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal tableid As LongPtr, _
    ByVal pindexcreate As LongPtr, _
    ByVal cIndexCreate As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

JetCreateIndex2W = ctypes.windll.esent.JetCreateIndex2W
JetCreateIndex2W.restype = ctypes.c_int
JetCreateIndex2W.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    ctypes.c_size_t,  # tableid : JET_TABLEID
    ctypes.c_void_p,  # pindexcreate : JET_INDEXCREATE_W*
    wintypes.DWORD,  # cIndexCreate : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetCreateIndex2W = Fiddle::Function.new(
  lib['JetCreateIndex2W'],
  [
    Fiddle::TYPE_UINTPTR_T,  # sesid : JET_SESID
    Fiddle::TYPE_UINTPTR_T,  # tableid : JET_TABLEID
    Fiddle::TYPE_VOIDP,  # pindexcreate : JET_INDEXCREATE_W*
    -Fiddle::TYPE_INT,  # cIndexCreate : DWORD
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "esent")]
extern "system" {
    fn JetCreateIndex2W(
        sesid: usize,  // JET_SESID
        tableid: usize,  // JET_TABLEID
        pindexcreate: *mut JET_INDEXCREATE_W,  // JET_INDEXCREATE_W*
        cIndexCreate: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll", CharSet = CharSet.Unicode)]
public static extern int JetCreateIndex2W(UIntPtr sesid, UIntPtr tableid, IntPtr pindexcreate, uint cIndexCreate);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetCreateIndex2W' -Namespace Win32 -PassThru
# $api::JetCreateIndex2W(sesid, tableid, pindexcreate, cIndexCreate)

#uselib "ESENT.dll"
#func global JetCreateIndex2W "JetCreateIndex2W" wptr, wptr, wptr, wptr
; JetCreateIndex2W sesid, tableid, varptr(pindexcreate), cIndexCreate   ; 戻り値は stat
; sesid : JET_SESID -> "wptr"
; tableid : JET_TABLEID -> "wptr"
; pindexcreate : JET_INDEXCREATE_W* -> "wptr"
; cIndexCreate : DWORD -> "wptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "ESENT.dll"
#cfunc global JetCreateIndex2W "JetCreateIndex2W" sptr, sptr, var, int
; res = JetCreateIndex2W(sesid, tableid, pindexcreate, cIndexCreate)
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; pindexcreate : JET_INDEXCREATE_W* -> "var"
; cIndexCreate : DWORD -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; INT JetCreateIndex2W(JET_SESID sesid, JET_TABLEID tableid, JET_INDEXCREATE_W* pindexcreate, DWORD cIndexCreate)
#uselib "ESENT.dll"
#cfunc global JetCreateIndex2W "JetCreateIndex2W" intptr, intptr, var, int
; res = JetCreateIndex2W(sesid, tableid, pindexcreate, cIndexCreate)
; sesid : JET_SESID -> "intptr"
; tableid : JET_TABLEID -> "intptr"
; pindexcreate : JET_INDEXCREATE_W* -> "var"
; cIndexCreate : DWORD -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	esent = windows.NewLazySystemDLL("ESENT.dll")
	procJetCreateIndex2W = esent.NewProc("JetCreateIndex2W")
)

// sesid (JET_SESID), tableid (JET_TABLEID), pindexcreate (JET_INDEXCREATE_W*), cIndexCreate (DWORD)
r1, _, err := procJetCreateIndex2W.Call(
	uintptr(sesid),
	uintptr(tableid),
	uintptr(pindexcreate),
	uintptr(cIndexCreate),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetCreateIndex2W(
  sesid: NativeUInt;   // JET_SESID
  tableid: NativeUInt;   // JET_TABLEID
  pindexcreate: Pointer;   // JET_INDEXCREATE_W*
  cIndexCreate: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetCreateIndex2W';

result := DllCall("ESENT\JetCreateIndex2W"
    , "UPtr", sesid   ; JET_SESID
    , "UPtr", tableid   ; JET_TABLEID
    , "Ptr", pindexcreate   ; JET_INDEXCREATE_W*
    , "UInt", cIndexCreate   ; DWORD
    , "Int")   ; return: INT

●JetCreateIndex2W(sesid, tableid, pindexcreate, cIndexCreate) = DLL("ESENT.dll", "int JetCreateIndex2W(int, int, void*, dword)")
# 呼び出し: JetCreateIndex2W(sesid, tableid, pindexcreate, cIndexCreate)
# sesid : JET_SESID -> "int"
# tableid : JET_TABLEID -> "int"
# pindexcreate : JET_INDEXCREATE_W* -> "void*"
# cIndexCreate : DWORD -> "dword"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。