ApplyDeltaB

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

BOOL ApplyDeltaB(
    LONGLONG ApplyFlags,
    DELTA_INPUT Source,
    DELTA_INPUT Delta,
    DELTA_OUTPUT* lpTarget
);

<DllImport("msdelta.dll", ExactSpelling:=True)>
Public Shared Function ApplyDeltaB(
    ApplyFlags As Long,   ' LONGLONG
    Source As DELTA_INPUT,   ' DELTA_INPUT
    Delta As DELTA_INPUT,   ' DELTA_INPUT
    lpTarget As IntPtr   ' DELTA_OUTPUT* out
) As Boolean
End Function

' ApplyFlags : LONGLONG
' Source : DELTA_INPUT
' Delta : DELTA_INPUT
' lpTarget : DELTA_OUTPUT* out
Declare PtrSafe Function ApplyDeltaB Lib "msdelta" ( _
    ByVal ApplyFlags As LongLong, _
    ByVal Source As LongPtr, _
    ByVal Delta As LongPtr, _
    ByVal lpTarget As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ApplyDeltaB = ctypes.windll.msdelta.ApplyDeltaB
ApplyDeltaB.restype = wintypes.BOOL
ApplyDeltaB.argtypes = [
    ctypes.c_longlong,  # ApplyFlags : LONGLONG
    DELTA_INPUT,  # Source : DELTA_INPUT
    DELTA_INPUT,  # Delta : DELTA_INPUT
    ctypes.c_void_p,  # lpTarget : DELTA_OUTPUT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdelta.dll')
ApplyDeltaB = Fiddle::Function.new(
  lib['ApplyDeltaB'],
  [
    Fiddle::TYPE_LONG_LONG,  # ApplyFlags : LONGLONG
    Fiddle::TYPE_VOIDP,  # Source : DELTA_INPUT
    Fiddle::TYPE_VOIDP,  # Delta : DELTA_INPUT
    Fiddle::TYPE_VOIDP,  # lpTarget : DELTA_OUTPUT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "msdelta")]
extern "system" {
    fn ApplyDeltaB(
        ApplyFlags: i64,  // LONGLONG
        Source: DELTA_INPUT,  // DELTA_INPUT
        Delta: DELTA_INPUT,  // DELTA_INPUT
        lpTarget: *mut DELTA_OUTPUT  // DELTA_OUTPUT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("msdelta.dll")]
public static extern bool ApplyDeltaB(long ApplyFlags, DELTA_INPUT Source, DELTA_INPUT Delta, IntPtr lpTarget);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdelta_ApplyDeltaB' -Namespace Win32 -PassThru
# $api::ApplyDeltaB(ApplyFlags, Source, Delta, lpTarget)

#uselib "msdelta.dll"
#func global ApplyDeltaB "ApplyDeltaB" sptr, sptr, sptr, sptr
; ApplyDeltaB ApplyFlags, Source, Delta, varptr(lpTarget)   ; 戻り値は stat
; ApplyFlags : LONGLONG -> "sptr"
; Source : DELTA_INPUT -> "sptr"
; Delta : DELTA_INPUT -> "sptr"
; lpTarget : DELTA_OUTPUT* out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 "msdelta.dll"
#cfunc global ApplyDeltaB "ApplyDeltaB" int64, int, int, var
; res = ApplyDeltaB(ApplyFlags, Source, Delta, lpTarget)
; ApplyFlags : LONGLONG -> "int64"
; Source : DELTA_INPUT -> "int"
; Delta : DELTA_INPUT -> "int"
; lpTarget : DELTA_OUTPUT* out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。

; BOOL ApplyDeltaB(LONGLONG ApplyFlags, DELTA_INPUT Source, DELTA_INPUT Delta, DELTA_OUTPUT* lpTarget)
#uselib "msdelta.dll"
#cfunc global ApplyDeltaB "ApplyDeltaB" int64, int, int, var
; res = ApplyDeltaB(ApplyFlags, Source, Delta, lpTarget)
; ApplyFlags : LONGLONG -> "int64"
; Source : DELTA_INPUT -> "int"
; Delta : DELTA_INPUT -> "int"
; lpTarget : DELTA_OUTPUT* out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 (
	msdelta = windows.NewLazySystemDLL("msdelta.dll")
	procApplyDeltaB = msdelta.NewProc("ApplyDeltaB")
)

// ApplyFlags (LONGLONG), Source (DELTA_INPUT), Delta (DELTA_INPUT), lpTarget (DELTA_OUTPUT* out)
r1, _, err := procApplyDeltaB.Call(
	uintptr(ApplyFlags),
	uintptr(Source),
	uintptr(Delta),
	uintptr(lpTarget),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function ApplyDeltaB(
  ApplyFlags: Int64;   // LONGLONG
  Source: DELTA_INPUT;   // DELTA_INPUT
  Delta: DELTA_INPUT;   // DELTA_INPUT
  lpTarget: Pointer   // DELTA_OUTPUT* out
): BOOL; stdcall;
  external 'msdelta.dll' name 'ApplyDeltaB';

result := DllCall("msdelta\ApplyDeltaB"
    , "Int64", ApplyFlags   ; LONGLONG
    , "Ptr", Source   ; DELTA_INPUT
    , "Ptr", Delta   ; DELTA_INPUT
    , "Ptr", lpTarget   ; DELTA_OUTPUT* out
    , "Int")   ; return: BOOL

●ApplyDeltaB(ApplyFlags, Source, Delta, lpTarget) = DLL("msdelta.dll", "bool ApplyDeltaB(int64, void*, void*, void*)")
# 呼び出し: ApplyDeltaB(ApplyFlags, Source, Delta, lpTarget)
# ApplyFlags : LONGLONG -> "int64"
# Source : DELTA_INPUT -> "void*"
# Delta : DELTA_INPUT -> "void*"
# lpTarget : DELTA_OUTPUT* 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)。