MapFileAndCheckSumW

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

DWORD MapFileAndCheckSumW(
    LPCWSTR Filename,
    DWORD* HeaderSum,
    DWORD* CheckSum
);

<DllImport("imagehlp.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function MapFileAndCheckSumW(
    <MarshalAs(UnmanagedType.LPWStr)> Filename As String,   ' LPCWSTR
    <Out> ByRef HeaderSum As UInteger,   ' DWORD* out
    <Out> ByRef CheckSum As UInteger   ' DWORD* out
) As UInteger
End Function

' Filename : LPCWSTR
' HeaderSum : DWORD* out
' CheckSum : DWORD* out
Declare PtrSafe Function MapFileAndCheckSumW Lib "imagehlp" ( _
    ByVal Filename As LongPtr, _
    ByRef HeaderSum As Long, _
    ByRef CheckSum As Long) 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

MapFileAndCheckSumW = ctypes.windll.imagehlp.MapFileAndCheckSumW
MapFileAndCheckSumW.restype = wintypes.DWORD
MapFileAndCheckSumW.argtypes = [
    wintypes.LPCWSTR,  # Filename : LPCWSTR
    ctypes.POINTER(wintypes.DWORD),  # HeaderSum : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # CheckSum : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('imagehlp.dll')
MapFileAndCheckSumW = Fiddle::Function.new(
  lib['MapFileAndCheckSumW'],
  [
    Fiddle::TYPE_VOIDP,  # Filename : LPCWSTR
    Fiddle::TYPE_VOIDP,  # HeaderSum : DWORD* out
    Fiddle::TYPE_VOIDP,  # CheckSum : DWORD* out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "imagehlp")]
extern "system" {
    fn MapFileAndCheckSumW(
        Filename: *const u16,  // LPCWSTR
        HeaderSum: *mut u32,  // DWORD* out
        CheckSum: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("imagehlp.dll", CharSet = CharSet.Unicode)]
public static extern uint MapFileAndCheckSumW([MarshalAs(UnmanagedType.LPWStr)] string Filename, out uint HeaderSum, out uint CheckSum);
"@
$api = Add-Type -MemberDefinition $sig -Name 'imagehlp_MapFileAndCheckSumW' -Namespace Win32 -PassThru
# $api::MapFileAndCheckSumW(Filename, HeaderSum, CheckSum)

#uselib "imagehlp.dll"
#func global MapFileAndCheckSumW "MapFileAndCheckSumW" wptr, wptr, wptr
; MapFileAndCheckSumW Filename, varptr(HeaderSum), varptr(CheckSum)   ; 戻り値は stat
; Filename : LPCWSTR -> "wptr"
; HeaderSum : DWORD* out -> "wptr"
; CheckSum : DWORD* out -> "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 "imagehlp.dll"
#cfunc global MapFileAndCheckSumW "MapFileAndCheckSumW" wstr, var, var
; res = MapFileAndCheckSumW(Filename, HeaderSum, CheckSum)
; Filename : LPCWSTR -> "wstr"
; HeaderSum : DWORD* out -> "var"
; CheckSum : DWORD* out -> "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。

; DWORD MapFileAndCheckSumW(LPCWSTR Filename, DWORD* HeaderSum, DWORD* CheckSum)
#uselib "imagehlp.dll"
#cfunc global MapFileAndCheckSumW "MapFileAndCheckSumW" wstr, var, var
; res = MapFileAndCheckSumW(Filename, HeaderSum, CheckSum)
; Filename : LPCWSTR -> "wstr"
; HeaderSum : DWORD* out -> "var"
; CheckSum : DWORD* out -> "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 (
	imagehlp = windows.NewLazySystemDLL("imagehlp.dll")
	procMapFileAndCheckSumW = imagehlp.NewProc("MapFileAndCheckSumW")
)

// Filename (LPCWSTR), HeaderSum (DWORD* out), CheckSum (DWORD* out)
r1, _, err := procMapFileAndCheckSumW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(Filename))),
	uintptr(HeaderSum),
	uintptr(CheckSum),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function MapFileAndCheckSumW(
  Filename: PWideChar;   // LPCWSTR
  HeaderSum: Pointer;   // DWORD* out
  CheckSum: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'imagehlp.dll' name 'MapFileAndCheckSumW';

result := DllCall("imagehlp\MapFileAndCheckSumW"
    , "WStr", Filename   ; LPCWSTR
    , "Ptr", HeaderSum   ; DWORD* out
    , "Ptr", CheckSum   ; DWORD* out
    , "UInt")   ; return: DWORD

●MapFileAndCheckSumW(Filename, HeaderSum, CheckSum) = DLL("imagehlp.dll", "dword MapFileAndCheckSumW(char*, void*, void*)")
# 呼び出し: MapFileAndCheckSumW(Filename, HeaderSum, CheckSum)
# Filename : LPCWSTR -> "char*"
# HeaderSum : DWORD* out -> "void*"
# CheckSum : DWORD* out -> "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。