JetDeleteTableW

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

INT JetDeleteTableW(
    JET_SESID sesid,
    DWORD dbid,
    WORD* szTableName
);

<DllImport("ESENT.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function JetDeleteTableW(
    sesid As UIntPtr,   ' JET_SESID
    dbid As UInteger,   ' DWORD
    ByRef szTableName As UShort   ' WORD*
) As Integer
End Function

' sesid : JET_SESID
' dbid : DWORD
' szTableName : WORD*
Declare PtrSafe Function JetDeleteTableW Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal dbid As Long, _
    ByRef szTableName As Integer) 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

JetDeleteTableW = ctypes.windll.esent.JetDeleteTableW
JetDeleteTableW.restype = ctypes.c_int
JetDeleteTableW.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    wintypes.DWORD,  # dbid : DWORD
    ctypes.POINTER(ctypes.c_ushort),  # szTableName : WORD*
]

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "esent")]
extern "system" {
    fn JetDeleteTableW(
        sesid: usize,  // JET_SESID
        dbid: u32,  // DWORD
        szTableName: *mut u16  // WORD*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll", CharSet = CharSet.Unicode)]
public static extern int JetDeleteTableW(UIntPtr sesid, uint dbid, ref ushort szTableName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetDeleteTableW' -Namespace Win32 -PassThru
# $api::JetDeleteTableW(sesid, dbid, szTableName)

#uselib "ESENT.dll"
#func global JetDeleteTableW "JetDeleteTableW" wptr, wptr, wptr
; JetDeleteTableW sesid, dbid, varptr(szTableName)   ; 戻り値は stat
; sesid : JET_SESID -> "wptr"
; dbid : DWORD -> "wptr"
; szTableName : WORD* -> "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 JetDeleteTableW "JetDeleteTableW" sptr, int, var
; res = JetDeleteTableW(sesid, dbid, szTableName)
; sesid : JET_SESID -> "sptr"
; dbid : DWORD -> "int"
; szTableName : WORD* -> "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 JetDeleteTableW(JET_SESID sesid, DWORD dbid, WORD* szTableName)
#uselib "ESENT.dll"
#cfunc global JetDeleteTableW "JetDeleteTableW" intptr, int, var
; res = JetDeleteTableW(sesid, dbid, szTableName)
; sesid : JET_SESID -> "intptr"
; dbid : DWORD -> "int"
; szTableName : WORD* -> "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")
	procJetDeleteTableW = esent.NewProc("JetDeleteTableW")
)

// sesid (JET_SESID), dbid (DWORD), szTableName (WORD*)
r1, _, err := procJetDeleteTableW.Call(
	uintptr(sesid),
	uintptr(dbid),
	uintptr(szTableName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetDeleteTableW(
  sesid: NativeUInt;   // JET_SESID
  dbid: DWORD;   // DWORD
  szTableName: Pointer   // WORD*
): Integer; stdcall;
  external 'ESENT.dll' name 'JetDeleteTableW';

result := DllCall("ESENT\JetDeleteTableW"
    , "UPtr", sesid   ; JET_SESID
    , "UInt", dbid   ; DWORD
    , "Ptr", szTableName   ; WORD*
    , "Int")   ; return: INT

●JetDeleteTableW(sesid, dbid, szTableName) = DLL("ESENT.dll", "int JetDeleteTableW(int, dword, void*)")
# 呼び出し: JetDeleteTableW(sesid, dbid, szTableName)
# sesid : JET_SESID -> "int"
# dbid : DWORD -> "dword"
# szTableName : WORD* -> "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。