JetSetColumns

// ESENT.dll
#include <windows.h>

INT JetSetColumns(
    JET_SESID sesid,
    JET_TABLEID tableid,
    JET_SETCOLUMN* psetcolumn,   // optional
    DWORD csetcolumn
);

<DllImport("ESENT.dll", ExactSpelling:=True)>
Public Shared Function JetSetColumns(
    sesid As UIntPtr,   ' JET_SESID
    tableid As UIntPtr,   ' JET_TABLEID
    psetcolumn As IntPtr,   ' JET_SETCOLUMN* optional
    csetcolumn As UInteger   ' DWORD
) As Integer
End Function

' sesid : JET_SESID
' tableid : JET_TABLEID
' psetcolumn : JET_SETCOLUMN* optional
' csetcolumn : DWORD
Declare PtrSafe Function JetSetColumns Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal tableid As LongPtr, _
    ByVal psetcolumn As LongPtr, _
    ByVal csetcolumn As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

JetSetColumns = ctypes.windll.esent.JetSetColumns
JetSetColumns.restype = ctypes.c_int
JetSetColumns.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    ctypes.c_size_t,  # tableid : JET_TABLEID
    ctypes.c_void_p,  # psetcolumn : JET_SETCOLUMN* optional
    wintypes.DWORD,  # csetcolumn : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetSetColumns = Fiddle::Function.new(
  lib['JetSetColumns'],
  [
    Fiddle::TYPE_UINTPTR_T,  # sesid : JET_SESID
    Fiddle::TYPE_UINTPTR_T,  # tableid : JET_TABLEID
    Fiddle::TYPE_VOIDP,  # psetcolumn : JET_SETCOLUMN* optional
    -Fiddle::TYPE_INT,  # csetcolumn : DWORD
  ],
  Fiddle::TYPE_INT)

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

$sig = @"
[DllImport("ESENT.dll")]
public static extern int JetSetColumns(UIntPtr sesid, UIntPtr tableid, IntPtr psetcolumn, uint csetcolumn);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetSetColumns' -Namespace Win32 -PassThru
# $api::JetSetColumns(sesid, tableid, psetcolumn, csetcolumn)

#uselib "ESENT.dll"
#func global JetSetColumns "JetSetColumns" sptr, sptr, sptr, sptr
; JetSetColumns sesid, tableid, varptr(psetcolumn), csetcolumn   ; 戻り値は stat
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; psetcolumn : JET_SETCOLUMN* optional -> "sptr"
; csetcolumn : DWORD -> "sptr"
; ※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 JetSetColumns "JetSetColumns" sptr, sptr, var, int
; res = JetSetColumns(sesid, tableid, psetcolumn, csetcolumn)
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; psetcolumn : JET_SETCOLUMN* optional -> "var"
; csetcolumn : 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 JetSetColumns(JET_SESID sesid, JET_TABLEID tableid, JET_SETCOLUMN* psetcolumn, DWORD csetcolumn)
#uselib "ESENT.dll"
#cfunc global JetSetColumns "JetSetColumns" intptr, intptr, var, int
; res = JetSetColumns(sesid, tableid, psetcolumn, csetcolumn)
; sesid : JET_SESID -> "intptr"
; tableid : JET_TABLEID -> "intptr"
; psetcolumn : JET_SETCOLUMN* optional -> "var"
; csetcolumn : 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")
	procJetSetColumns = esent.NewProc("JetSetColumns")
)

// sesid (JET_SESID), tableid (JET_TABLEID), psetcolumn (JET_SETCOLUMN* optional), csetcolumn (DWORD)
r1, _, err := procJetSetColumns.Call(
	uintptr(sesid),
	uintptr(tableid),
	uintptr(psetcolumn),
	uintptr(csetcolumn),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetSetColumns(
  sesid: NativeUInt;   // JET_SESID
  tableid: NativeUInt;   // JET_TABLEID
  psetcolumn: Pointer;   // JET_SETCOLUMN* optional
  csetcolumn: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetSetColumns';

result := DllCall("ESENT\JetSetColumns"
    , "UPtr", sesid   ; JET_SESID
    , "UPtr", tableid   ; JET_TABLEID
    , "Ptr", psetcolumn   ; JET_SETCOLUMN* optional
    , "UInt", csetcolumn   ; DWORD
    , "Int")   ; return: INT

●JetSetColumns(sesid, tableid, psetcolumn, csetcolumn) = DLL("ESENT.dll", "int JetSetColumns(int, int, void*, dword)")
# 呼び出し: JetSetColumns(sesid, tableid, psetcolumn, csetcolumn)
# sesid : JET_SESID -> "int"
# tableid : JET_TABLEID -> "int"
# psetcolumn : JET_SETCOLUMN* optional -> "void*"
# csetcolumn : 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)。