JetGetIndexInfoA

// ESENT.dll  (ANSI / -A)
#include <windows.h>

INT JetGetIndexInfoA(
    JET_SESID sesid,
    DWORD dbid,
    CHAR* szTableName,
    CHAR* szIndexName,   // optional
    void* pvResult,
    DWORD cbResult,
    DWORD InfoLevel
);

<DllImport("ESENT.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function JetGetIndexInfoA(
    sesid As UIntPtr,   ' JET_SESID
    dbid As UInteger,   ' DWORD
    szTableName As IntPtr,   ' CHAR*
    szIndexName As IntPtr,   ' CHAR* optional
    pvResult As IntPtr,   ' void* out
    cbResult As UInteger,   ' DWORD
    InfoLevel As UInteger   ' DWORD
) As Integer
End Function

' sesid : JET_SESID
' dbid : DWORD
' szTableName : CHAR*
' szIndexName : CHAR* optional
' pvResult : void* out
' cbResult : DWORD
' InfoLevel : DWORD
Declare PtrSafe Function JetGetIndexInfoA Lib "esent" ( _
    ByVal sesid As LongPtr, _
    ByVal dbid As Long, _
    ByVal szTableName As LongPtr, _
    ByVal szIndexName As LongPtr, _
    ByVal pvResult As LongPtr, _
    ByVal cbResult As Long, _
    ByVal InfoLevel 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

JetGetIndexInfoA = ctypes.windll.esent.JetGetIndexInfoA
JetGetIndexInfoA.restype = ctypes.c_int
JetGetIndexInfoA.argtypes = [
    ctypes.c_size_t,  # sesid : JET_SESID
    wintypes.DWORD,  # dbid : DWORD
    ctypes.POINTER(ctypes.c_byte),  # szTableName : CHAR*
    ctypes.POINTER(ctypes.c_byte),  # szIndexName : CHAR* optional
    ctypes.POINTER(None),  # pvResult : void* out
    wintypes.DWORD,  # cbResult : DWORD
    wintypes.DWORD,  # InfoLevel : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ESENT.dll')
JetGetIndexInfoA = Fiddle::Function.new(
  lib['JetGetIndexInfoA'],
  [
    Fiddle::TYPE_UINTPTR_T,  # sesid : JET_SESID
    -Fiddle::TYPE_INT,  # dbid : DWORD
    Fiddle::TYPE_VOIDP,  # szTableName : CHAR*
    Fiddle::TYPE_VOIDP,  # szIndexName : CHAR* optional
    Fiddle::TYPE_VOIDP,  # pvResult : void* out
    -Fiddle::TYPE_INT,  # cbResult : DWORD
    -Fiddle::TYPE_INT,  # InfoLevel : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "esent")]
extern "system" {
    fn JetGetIndexInfoA(
        sesid: usize,  // JET_SESID
        dbid: u32,  // DWORD
        szTableName: *mut i8,  // CHAR*
        szIndexName: *mut i8,  // CHAR* optional
        pvResult: *mut (),  // void* out
        cbResult: u32,  // DWORD
        InfoLevel: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ESENT.dll", CharSet = CharSet.Ansi)]
public static extern int JetGetIndexInfoA(UIntPtr sesid, uint dbid, IntPtr szTableName, IntPtr szIndexName, IntPtr pvResult, uint cbResult, uint InfoLevel);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ESENT_JetGetIndexInfoA' -Namespace Win32 -PassThru
# $api::JetGetIndexInfoA(sesid, dbid, szTableName, szIndexName, pvResult, cbResult, InfoLevel)

#uselib "ESENT.dll"
#func global JetGetIndexInfoA "JetGetIndexInfoA" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; JetGetIndexInfoA sesid, dbid, varptr(szTableName), varptr(szIndexName), pvResult, cbResult, InfoLevel   ; 戻り値は stat
; sesid : JET_SESID -> "sptr"
; dbid : DWORD -> "sptr"
; szTableName : CHAR* -> "sptr"
; szIndexName : CHAR* optional -> "sptr"
; pvResult : void* out -> "sptr"
; cbResult : DWORD -> "sptr"
; InfoLevel : 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 JetGetIndexInfoA "JetGetIndexInfoA" sptr, int, var, var, sptr, int, int
; res = JetGetIndexInfoA(sesid, dbid, szTableName, szIndexName, pvResult, cbResult, InfoLevel)
; sesid : JET_SESID -> "sptr"
; dbid : DWORD -> "int"
; szTableName : CHAR* -> "var"
; szIndexName : CHAR* optional -> "var"
; pvResult : void* out -> "sptr"
; cbResult : DWORD -> "int"
; InfoLevel : 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 JetGetIndexInfoA(JET_SESID sesid, DWORD dbid, CHAR* szTableName, CHAR* szIndexName, void* pvResult, DWORD cbResult, DWORD InfoLevel)
#uselib "ESENT.dll"
#cfunc global JetGetIndexInfoA "JetGetIndexInfoA" intptr, int, var, var, intptr, int, int
; res = JetGetIndexInfoA(sesid, dbid, szTableName, szIndexName, pvResult, cbResult, InfoLevel)
; sesid : JET_SESID -> "intptr"
; dbid : DWORD -> "int"
; szTableName : CHAR* -> "var"
; szIndexName : CHAR* optional -> "var"
; pvResult : void* out -> "intptr"
; cbResult : DWORD -> "int"
; InfoLevel : 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")
	procJetGetIndexInfoA = esent.NewProc("JetGetIndexInfoA")
)

// sesid (JET_SESID), dbid (DWORD), szTableName (CHAR*), szIndexName (CHAR* optional), pvResult (void* out), cbResult (DWORD), InfoLevel (DWORD)
r1, _, err := procJetGetIndexInfoA.Call(
	uintptr(sesid),
	uintptr(dbid),
	uintptr(szTableName),
	uintptr(szIndexName),
	uintptr(pvResult),
	uintptr(cbResult),
	uintptr(InfoLevel),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function JetGetIndexInfoA(
  sesid: NativeUInt;   // JET_SESID
  dbid: DWORD;   // DWORD
  szTableName: Pointer;   // CHAR*
  szIndexName: Pointer;   // CHAR* optional
  pvResult: Pointer;   // void* out
  cbResult: DWORD;   // DWORD
  InfoLevel: DWORD   // DWORD
): Integer; stdcall;
  external 'ESENT.dll' name 'JetGetIndexInfoA';

result := DllCall("ESENT\JetGetIndexInfoA"
    , "UPtr", sesid   ; JET_SESID
    , "UInt", dbid   ; DWORD
    , "Ptr", szTableName   ; CHAR*
    , "Ptr", szIndexName   ; CHAR* optional
    , "Ptr", pvResult   ; void* out
    , "UInt", cbResult   ; DWORD
    , "UInt", InfoLevel   ; DWORD
    , "Int")   ; return: INT

●JetGetIndexInfoA(sesid, dbid, szTableName, szIndexName, pvResult, cbResult, InfoLevel) = DLL("ESENT.dll", "int JetGetIndexInfoA(int, dword, void*, void*, void*, dword, dword)")
# 呼び出し: JetGetIndexInfoA(sesid, dbid, szTableName, szIndexName, pvResult, cbResult, InfoLevel)
# sesid : JET_SESID -> "int"
# dbid : DWORD -> "dword"
# szTableName : CHAR* -> "void*"
# szIndexName : CHAR* optional -> "void*"
# pvResult : void* out -> "void*"
# cbResult : DWORD -> "dword"
# InfoLevel : 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)。