LZRead

// KERNEL32.dll
#include <windows.h>

INT LZRead(
    INT hFile,
    LPSTR lpBuffer,
    INT cbRead
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function LZRead(
    hFile As Integer,   ' INT
    <MarshalAs(UnmanagedType.LPStr)> lpBuffer As System.Text.StringBuilder,   ' LPSTR out
    cbRead As Integer   ' INT
) As Integer
End Function

' hFile : INT
' lpBuffer : LPSTR out
' cbRead : INT
Declare PtrSafe Function LZRead Lib "kernel32" ( _
    ByVal hFile As Long, _
    ByVal lpBuffer As String, _
    ByVal cbRead 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

LZRead = ctypes.windll.kernel32.LZRead
LZRead.restype = ctypes.c_int
LZRead.argtypes = [
    ctypes.c_int,  # hFile : INT
    wintypes.LPSTR,  # lpBuffer : LPSTR out
    ctypes.c_int,  # cbRead : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
LZRead = Fiddle::Function.new(
  lib['LZRead'],
  [
    Fiddle::TYPE_INT,  # hFile : INT
    Fiddle::TYPE_VOIDP,  # lpBuffer : LPSTR out
    Fiddle::TYPE_INT,  # cbRead : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn LZRead(
        hFile: i32,  // INT
        lpBuffer: *mut u8,  // LPSTR out
        cbRead: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern int LZRead(int hFile, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpBuffer, int cbRead);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_LZRead' -Namespace Win32 -PassThru
# $api::LZRead(hFile, lpBuffer, cbRead)

#uselib "KERNEL32.dll"
#func global LZRead "LZRead" sptr, sptr, sptr
; LZRead hFile, varptr(lpBuffer), cbRead   ; 戻り値は stat
; hFile : INT -> "sptr"
; lpBuffer : LPSTR out -> "sptr"
; cbRead : INT -> "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 LZRead "LZRead" int, var, int
; res = LZRead(hFile, lpBuffer, cbRead)
; hFile : INT -> "int"
; lpBuffer : LPSTR out -> "var"
; cbRead : INT -> "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 LZRead(INT hFile, LPSTR lpBuffer, INT cbRead)
#uselib "KERNEL32.dll"
#cfunc global LZRead "LZRead" int, var, int
; res = LZRead(hFile, lpBuffer, cbRead)
; hFile : INT -> "int"
; lpBuffer : LPSTR out -> "var"
; cbRead : INT -> "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")
	procLZRead = kernel32.NewProc("LZRead")
)

// hFile (INT), lpBuffer (LPSTR out), cbRead (INT)
r1, _, err := procLZRead.Call(
	uintptr(hFile),
	uintptr(lpBuffer),
	uintptr(cbRead),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function LZRead(
  hFile: Integer;   // INT
  lpBuffer: PAnsiChar;   // LPSTR out
  cbRead: Integer   // INT
): Integer; stdcall;
  external 'KERNEL32.dll' name 'LZRead';

result := DllCall("KERNEL32\LZRead"
    , "Int", hFile   ; INT
    , "Ptr", lpBuffer   ; LPSTR out
    , "Int", cbRead   ; INT
    , "Int")   ; return: INT

●LZRead(hFile, lpBuffer, cbRead) = DLL("KERNEL32.dll", "int LZRead(int, char*, int)")
# 呼び出し: LZRead(hFile, lpBuffer, cbRead)
# hFile : INT -> "int"
# lpBuffer : LPSTR out -> "char*"
# cbRead : INT -> "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)。