JetPrereadKeys

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

INT JetPrereadKeys(
    JET_SESID sesid,
    JET_TABLEID tableid,
    void** rgpvKeys,
    const DWORD* rgcbKeys,
    INT ckeys,
    INT* pckeysPreread,   // optional
    DWORD grbit
);

<DllImport("ESENT.dll", ExactSpelling:=True)>
Public Shared Function JetPrereadKeys(
    sesid As UIntPtr,   ' JET_SESID
    tableid As UIntPtr,   ' JET_TABLEID
    rgpvKeys As IntPtr,   ' void**
    ByRef rgcbKeys As UInteger,   ' DWORD*
    ckeys As Integer,   ' INT
    pckeysPreread As IntPtr,   ' INT* optional, out
    grbit As UInteger   ' DWORD
) As Integer
End Function

' sesid : JET_SESID
' tableid : JET_TABLEID
' rgpvKeys : void**
' rgcbKeys : DWORD*
' ckeys : INT
' pckeysPreread : INT* optional, out
' grbit : DWORD
Declare PtrSafe Function JetPrereadKeys Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal tableid As LongPtr, _
    ByVal rgpvKeys As LongPtr, _
    ByRef rgcbKeys As Long, _
    ByVal ckeys As Long, _
    ByVal pckeysPreread As LongPtr, _
    ByVal grbit 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

JetPrereadKeys = ctypes.windll.esent.JetPrereadKeys
JetPrereadKeys.restype = ctypes.c_int
JetPrereadKeys.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    ctypes.c_size_t,  # tableid : JET_TABLEID
    ctypes.c_void_p,  # rgpvKeys : void**
    ctypes.POINTER(wintypes.DWORD),  # rgcbKeys : DWORD*
    ctypes.c_int,  # ckeys : INT
    ctypes.POINTER(ctypes.c_int),  # pckeysPreread : INT* optional, out
    wintypes.DWORD,  # grbit : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetPrereadKeys = Fiddle::Function.new(
  lib['JetPrereadKeys'],
  [
    Fiddle::TYPE_UINTPTR_T,  # sesid : JET_SESID
    Fiddle::TYPE_UINTPTR_T,  # tableid : JET_TABLEID
    Fiddle::TYPE_VOIDP,  # rgpvKeys : void**
    Fiddle::TYPE_VOIDP,  # rgcbKeys : DWORD*
    Fiddle::TYPE_INT,  # ckeys : INT
    Fiddle::TYPE_VOIDP,  # pckeysPreread : INT* optional, out
    -Fiddle::TYPE_INT,  # grbit : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "esent")]
extern "system" {
    fn JetPrereadKeys(
        sesid: usize,  // JET_SESID
        tableid: usize,  // JET_TABLEID
        rgpvKeys: *mut *mut (),  // void**
        rgcbKeys: *const u32,  // DWORD*
        ckeys: i32,  // INT
        pckeysPreread: *mut i32,  // INT* optional, out
        grbit: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll")]
public static extern int JetPrereadKeys(UIntPtr sesid, UIntPtr tableid, IntPtr rgpvKeys, ref uint rgcbKeys, int ckeys, IntPtr pckeysPreread, uint grbit);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetPrereadKeys' -Namespace Win32 -PassThru
# $api::JetPrereadKeys(sesid, tableid, rgpvKeys, rgcbKeys, ckeys, pckeysPreread, grbit)

#uselib "ESENT.dll"
#func global JetPrereadKeys "JetPrereadKeys" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; JetPrereadKeys sesid, tableid, rgpvKeys, varptr(rgcbKeys), ckeys, varptr(pckeysPreread), grbit   ; 戻り値は stat
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; rgpvKeys : void** -> "sptr"
; rgcbKeys : DWORD* -> "sptr"
; ckeys : INT -> "sptr"
; pckeysPreread : INT* optional, out -> "sptr"
; grbit : 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 JetPrereadKeys "JetPrereadKeys" sptr, sptr, sptr, var, int, var, int
; res = JetPrereadKeys(sesid, tableid, rgpvKeys, rgcbKeys, ckeys, pckeysPreread, grbit)
; sesid : JET_SESID -> "sptr"
; tableid : JET_TABLEID -> "sptr"
; rgpvKeys : void** -> "sptr"
; rgcbKeys : DWORD* -> "var"
; ckeys : INT -> "int"
; pckeysPreread : INT* optional, out -> "var"
; grbit : 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 JetPrereadKeys(JET_SESID sesid, JET_TABLEID tableid, void** rgpvKeys, DWORD* rgcbKeys, INT ckeys, INT* pckeysPreread, DWORD grbit)
#uselib "ESENT.dll"
#cfunc global JetPrereadKeys "JetPrereadKeys" intptr, intptr, intptr, var, int, var, int
; res = JetPrereadKeys(sesid, tableid, rgpvKeys, rgcbKeys, ckeys, pckeysPreread, grbit)
; sesid : JET_SESID -> "intptr"
; tableid : JET_TABLEID -> "intptr"
; rgpvKeys : void** -> "intptr"
; rgcbKeys : DWORD* -> "var"
; ckeys : INT -> "int"
; pckeysPreread : INT* optional, out -> "var"
; grbit : 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")
	procJetPrereadKeys = esent.NewProc("JetPrereadKeys")
)

// sesid (JET_SESID), tableid (JET_TABLEID), rgpvKeys (void**), rgcbKeys (DWORD*), ckeys (INT), pckeysPreread (INT* optional, out), grbit (DWORD)
r1, _, err := procJetPrereadKeys.Call(
	uintptr(sesid),
	uintptr(tableid),
	uintptr(rgpvKeys),
	uintptr(rgcbKeys),
	uintptr(ckeys),
	uintptr(pckeysPreread),
	uintptr(grbit),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetPrereadKeys(
  sesid: NativeUInt;   // JET_SESID
  tableid: NativeUInt;   // JET_TABLEID
  rgpvKeys: Pointer;   // void**
  rgcbKeys: Pointer;   // DWORD*
  ckeys: Integer;   // INT
  pckeysPreread: Pointer;   // INT* optional, out
  grbit: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetPrereadKeys';

result := DllCall("ESENT\JetPrereadKeys"
    , "UPtr", sesid   ; JET_SESID
    , "UPtr", tableid   ; JET_TABLEID
    , "Ptr", rgpvKeys   ; void**
    , "Ptr", rgcbKeys   ; DWORD*
    , "Int", ckeys   ; INT
    , "Ptr", pckeysPreread   ; INT* optional, out
    , "UInt", grbit   ; DWORD
    , "Int")   ; return: INT

●JetPrereadKeys(sesid, tableid, rgpvKeys, rgcbKeys, ckeys, pckeysPreread, grbit) = DLL("ESENT.dll", "int JetPrereadKeys(int, int, void*, void*, int, void*, dword)")
# 呼び出し: JetPrereadKeys(sesid, tableid, rgpvKeys, rgcbKeys, ckeys, pckeysPreread, grbit)
# sesid : JET_SESID -> "int"
# tableid : JET_TABLEID -> "int"
# rgpvKeys : void** -> "void*"
# rgcbKeys : DWORD* -> "void*"
# ckeys : INT -> "int"
# pckeysPreread : INT* optional, out -> "void*"
# grbit : 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)。