ApplyDeltaW

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

BOOL ApplyDeltaW(
    LONGLONG ApplyFlags,
    LPCWSTR lpSourceName,
    LPCWSTR lpDeltaName,
    LPCWSTR lpTargetName
);

<DllImport("msdelta.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function ApplyDeltaW(
    ApplyFlags As Long,   ' LONGLONG
    <MarshalAs(UnmanagedType.LPWStr)> lpSourceName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpDeltaName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> lpTargetName As String   ' LPCWSTR
) As Boolean
End Function

' ApplyFlags : LONGLONG
' lpSourceName : LPCWSTR
' lpDeltaName : LPCWSTR
' lpTargetName : LPCWSTR
Declare PtrSafe Function ApplyDeltaW Lib "msdelta" ( _
    ByVal ApplyFlags As LongLong, _
    ByVal lpSourceName As LongPtr, _
    ByVal lpDeltaName As LongPtr, _
    ByVal lpTargetName As LongPtr) 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

ApplyDeltaW = ctypes.windll.msdelta.ApplyDeltaW
ApplyDeltaW.restype = wintypes.BOOL
ApplyDeltaW.argtypes = [
    ctypes.c_longlong,  # ApplyFlags : LONGLONG
    wintypes.LPCWSTR,  # lpSourceName : LPCWSTR
    wintypes.LPCWSTR,  # lpDeltaName : LPCWSTR
    wintypes.LPCWSTR,  # lpTargetName : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msdelta.dll')
ApplyDeltaW = Fiddle::Function.new(
  lib['ApplyDeltaW'],
  [
    Fiddle::TYPE_LONG_LONG,  # ApplyFlags : LONGLONG
    Fiddle::TYPE_VOIDP,  # lpSourceName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpDeltaName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # lpTargetName : LPCWSTR
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "msdelta")]
extern "system" {
    fn ApplyDeltaW(
        ApplyFlags: i64,  // LONGLONG
        lpSourceName: *const u16,  // LPCWSTR
        lpDeltaName: *const u16,  // LPCWSTR
        lpTargetName: *const u16  // LPCWSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("msdelta.dll", CharSet = CharSet.Unicode)]
public static extern bool ApplyDeltaW(long ApplyFlags, [MarshalAs(UnmanagedType.LPWStr)] string lpSourceName, [MarshalAs(UnmanagedType.LPWStr)] string lpDeltaName, [MarshalAs(UnmanagedType.LPWStr)] string lpTargetName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msdelta_ApplyDeltaW' -Namespace Win32 -PassThru
# $api::ApplyDeltaW(ApplyFlags, lpSourceName, lpDeltaName, lpTargetName)

#uselib "msdelta.dll"
#func global ApplyDeltaW "ApplyDeltaW" wptr, wptr, wptr, wptr
; ApplyDeltaW ApplyFlags, lpSourceName, lpDeltaName, lpTargetName   ; 戻り値は stat
; ApplyFlags : LONGLONG -> "wptr"
; lpSourceName : LPCWSTR -> "wptr"
; lpDeltaName : LPCWSTR -> "wptr"
; lpTargetName : LPCWSTR -> "wptr"
; ※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 ApplyDeltaW "ApplyDeltaW" int64, wstr, wstr, wstr
; res = ApplyDeltaW(ApplyFlags, lpSourceName, lpDeltaName, lpTargetName)
; ApplyFlags : LONGLONG -> "int64"
; lpSourceName : LPCWSTR -> "wstr"
; lpDeltaName : LPCWSTR -> "wstr"
; lpTargetName : LPCWSTR -> "wstr"
; ※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 ApplyDeltaW(LONGLONG ApplyFlags, LPCWSTR lpSourceName, LPCWSTR lpDeltaName, LPCWSTR lpTargetName)
#uselib "msdelta.dll"
#cfunc global ApplyDeltaW "ApplyDeltaW" int64, wstr, wstr, wstr
; res = ApplyDeltaW(ApplyFlags, lpSourceName, lpDeltaName, lpTargetName)
; ApplyFlags : LONGLONG -> "int64"
; lpSourceName : LPCWSTR -> "wstr"
; lpDeltaName : LPCWSTR -> "wstr"
; lpTargetName : LPCWSTR -> "wstr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	msdelta = windows.NewLazySystemDLL("msdelta.dll")
	procApplyDeltaW = msdelta.NewProc("ApplyDeltaW")
)

// ApplyFlags (LONGLONG), lpSourceName (LPCWSTR), lpDeltaName (LPCWSTR), lpTargetName (LPCWSTR)
r1, _, err := procApplyDeltaW.Call(
	uintptr(ApplyFlags),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpSourceName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpDeltaName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpTargetName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function ApplyDeltaW(
  ApplyFlags: Int64;   // LONGLONG
  lpSourceName: PWideChar;   // LPCWSTR
  lpDeltaName: PWideChar;   // LPCWSTR
  lpTargetName: PWideChar   // LPCWSTR
): BOOL; stdcall;
  external 'msdelta.dll' name 'ApplyDeltaW';

result := DllCall("msdelta\ApplyDeltaW"
    , "Int64", ApplyFlags   ; LONGLONG
    , "WStr", lpSourceName   ; LPCWSTR
    , "WStr", lpDeltaName   ; LPCWSTR
    , "WStr", lpTargetName   ; LPCWSTR
    , "Int")   ; return: BOOL

●ApplyDeltaW(ApplyFlags, lpSourceName, lpDeltaName, lpTargetName) = DLL("msdelta.dll", "bool ApplyDeltaW(int64, char*, char*, char*)")
# 呼び出し: ApplyDeltaW(ApplyFlags, lpSourceName, lpDeltaName, lpTargetName)
# ApplyFlags : LONGLONG -> "int64"
# lpSourceName : LPCWSTR -> "char*"
# lpDeltaName : LPCWSTR -> "char*"
# lpTargetName : LPCWSTR -> "char*"
# 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。