LZOpenFileA

// KERNEL32.dll  (ANSI / -A)
#include <windows.h>

INT LZOpenFileA(
    LPSTR lpFileName,
    OFSTRUCT* lpReOpenBuf,
    LZOPENFILE_STYLE wStyle
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function LZOpenFileA(
    <MarshalAs(UnmanagedType.LPStr)> lpFileName As String,   ' LPSTR
    lpReOpenBuf As IntPtr,   ' OFSTRUCT* in/out
    wStyle As UShort   ' LZOPENFILE_STYLE
) As Integer
End Function

' lpFileName : LPSTR
' lpReOpenBuf : OFSTRUCT* in/out
' wStyle : LZOPENFILE_STYLE
Declare PtrSafe Function LZOpenFileA Lib "kernel32" ( _
    ByVal lpFileName As String, _
    ByVal lpReOpenBuf As LongPtr, _
    ByVal wStyle As Integer) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

LZOpenFileA = ctypes.windll.kernel32.LZOpenFileA
LZOpenFileA.restype = ctypes.c_int
LZOpenFileA.argtypes = [
    wintypes.LPCSTR,  # lpFileName : LPSTR
    ctypes.c_void_p,  # lpReOpenBuf : OFSTRUCT* in/out
    ctypes.c_ushort,  # wStyle : LZOPENFILE_STYLE
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
LZOpenFileA = Fiddle::Function.new(
  lib['LZOpenFileA'],
  [
    Fiddle::TYPE_VOIDP,  # lpFileName : LPSTR
    Fiddle::TYPE_VOIDP,  # lpReOpenBuf : OFSTRUCT* in/out
    -Fiddle::TYPE_SHORT,  # wStyle : LZOPENFILE_STYLE
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn LZOpenFileA(
        lpFileName: *mut u8,  // LPSTR
        lpReOpenBuf: *mut OFSTRUCT,  // OFSTRUCT* in/out
        wStyle: u16  // LZOPENFILE_STYLE
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi)]
public static extern int LZOpenFileA([MarshalAs(UnmanagedType.LPStr)] string lpFileName, IntPtr lpReOpenBuf, ushort wStyle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_LZOpenFileA' -Namespace Win32 -PassThru
# $api::LZOpenFileA(lpFileName, lpReOpenBuf, wStyle)

#uselib "KERNEL32.dll"
#func global LZOpenFileA "LZOpenFileA" sptr, sptr, sptr
; LZOpenFileA lpFileName, varptr(lpReOpenBuf), wStyle   ; 戻り値は stat
; lpFileName : LPSTR -> "sptr"
; lpReOpenBuf : OFSTRUCT* in/out -> "sptr"
; wStyle : LZOPENFILE_STYLE -> "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 "KERNEL32.dll"
#cfunc global LZOpenFileA "LZOpenFileA" str, var, int
; res = LZOpenFileA(lpFileName, lpReOpenBuf, wStyle)
; lpFileName : LPSTR -> "str"
; lpReOpenBuf : OFSTRUCT* in/out -> "var"
; wStyle : LZOPENFILE_STYLE -> "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 LZOpenFileA(LPSTR lpFileName, OFSTRUCT* lpReOpenBuf, LZOPENFILE_STYLE wStyle)
#uselib "KERNEL32.dll"
#cfunc global LZOpenFileA "LZOpenFileA" str, var, int
; res = LZOpenFileA(lpFileName, lpReOpenBuf, wStyle)
; lpFileName : LPSTR -> "str"
; lpReOpenBuf : OFSTRUCT* in/out -> "var"
; wStyle : LZOPENFILE_STYLE -> "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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procLZOpenFileA = kernel32.NewProc("LZOpenFileA")
)

// lpFileName (LPSTR), lpReOpenBuf (OFSTRUCT* in/out), wStyle (LZOPENFILE_STYLE)
r1, _, err := procLZOpenFileA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpFileName))),
	uintptr(lpReOpenBuf),
	uintptr(wStyle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function LZOpenFileA(
  lpFileName: PAnsiChar;   // LPSTR
  lpReOpenBuf: Pointer;   // OFSTRUCT* in/out
  wStyle: Word   // LZOPENFILE_STYLE
): Integer; stdcall;
  external 'KERNEL32.dll' name 'LZOpenFileA';

result := DllCall("KERNEL32\LZOpenFileA"
    , "AStr", lpFileName   ; LPSTR
    , "Ptr", lpReOpenBuf   ; OFSTRUCT* in/out
    , "UShort", wStyle   ; LZOPENFILE_STYLE
    , "Int")   ; return: INT

●LZOpenFileA(lpFileName, lpReOpenBuf, wStyle) = DLL("KERNEL32.dll", "int LZOpenFileA(char*, void*, int)")
# 呼び出し: LZOpenFileA(lpFileName, lpReOpenBuf, wStyle)
# lpFileName : LPSTR -> "char*"
# lpReOpenBuf : OFSTRUCT* in/out -> "void*"
# wStyle : LZOPENFILE_STYLE -> "int"
# 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)。