JetDetachDatabaseW

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

INT JetDetachDatabaseW(
    JET_SESID sesid,
    WORD* szFilename   // optional
);

<DllImport("ESENT.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function JetDetachDatabaseW(
    sesid As UIntPtr,   ' JET_SESID
    szFilename As IntPtr   ' WORD* optional
) As Integer
End Function

' sesid : JET_SESID
' szFilename : WORD* optional
Declare PtrSafe Function JetDetachDatabaseW Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal szFilename As LongPtr) 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

JetDetachDatabaseW = ctypes.windll.esent.JetDetachDatabaseW
JetDetachDatabaseW.restype = ctypes.c_int
JetDetachDatabaseW.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    ctypes.POINTER(ctypes.c_ushort),  # szFilename : WORD* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetDetachDatabaseW = Fiddle::Function.new(
  lib['JetDetachDatabaseW'],
  [
    Fiddle::TYPE_UINTPTR_T,  # sesid : JET_SESID
    Fiddle::TYPE_VOIDP,  # szFilename : WORD* optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "esent")]
extern "system" {
    fn JetDetachDatabaseW(
        sesid: usize,  // JET_SESID
        szFilename: *mut u16  // WORD* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "ESENT.dll"
#func global JetDetachDatabaseW "JetDetachDatabaseW" wptr, wptr
; JetDetachDatabaseW sesid, varptr(szFilename)   ; 戻り値は stat
; sesid : JET_SESID -> "wptr"
; szFilename : WORD* optional -> "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 JetDetachDatabaseW "JetDetachDatabaseW" sptr, var
; res = JetDetachDatabaseW(sesid, szFilename)
; sesid : JET_SESID -> "sptr"
; szFilename : WORD* optional -> "var"
; ※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 JetDetachDatabaseW(JET_SESID sesid, WORD* szFilename)
#uselib "ESENT.dll"
#cfunc global JetDetachDatabaseW "JetDetachDatabaseW" intptr, var
; res = JetDetachDatabaseW(sesid, szFilename)
; sesid : JET_SESID -> "intptr"
; szFilename : WORD* optional -> "var"
; ※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")
	procJetDetachDatabaseW = esent.NewProc("JetDetachDatabaseW")
)

// sesid (JET_SESID), szFilename (WORD* optional)
r1, _, err := procJetDetachDatabaseW.Call(
	uintptr(sesid),
	uintptr(szFilename),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetDetachDatabaseW(
  sesid: NativeUInt;   // JET_SESID
  szFilename: Pointer   // WORD* optional
): Integer; stdcall;
  external 'ESENT.dll' name 'JetDetachDatabaseW';

result := DllCall("ESENT\JetDetachDatabaseW"
    , "UPtr", sesid   ; JET_SESID
    , "Ptr", szFilename   ; WORD* optional
    , "Int")   ; return: INT

●JetDetachDatabaseW(sesid, szFilename) = DLL("ESENT.dll", "int JetDetachDatabaseW(int, void*)")
# 呼び出し: JetDetachDatabaseW(sesid, szFilename)
# sesid : JET_SESID -> "int"
# szFilename : WORD* optional -> "void*"
# 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。