GetFilePatchSignatureByBuffer

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

BOOL GetFilePatchSignatureByBuffer(
    BYTE* FileBufferWritable,
    DWORD FileSize,
    DWORD OptionFlags,
    void* OptionData,   // optional
    DWORD IgnoreRangeCount,
    PATCH_IGNORE_RANGE* IgnoreRangeArray,   // optional
    DWORD RetainRangeCount,
    PATCH_RETAIN_RANGE* RetainRangeArray,   // optional
    DWORD SignatureBufferSize,
    LPSTR SignatureBuffer
);

<DllImport("mspatcha.dll", ExactSpelling:=True)>
Public Shared Function GetFilePatchSignatureByBuffer(
    FileBufferWritable As IntPtr,   ' BYTE* in/out
    FileSize As UInteger,   ' DWORD
    OptionFlags As UInteger,   ' DWORD
    OptionData As IntPtr,   ' void* optional
    IgnoreRangeCount As UInteger,   ' DWORD
    IgnoreRangeArray As IntPtr,   ' PATCH_IGNORE_RANGE* optional
    RetainRangeCount As UInteger,   ' DWORD
    RetainRangeArray As IntPtr,   ' PATCH_RETAIN_RANGE* optional
    SignatureBufferSize As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> SignatureBuffer As System.Text.StringBuilder   ' LPSTR out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' FileBufferWritable : BYTE* in/out
' FileSize : DWORD
' OptionFlags : DWORD
' OptionData : void* optional
' IgnoreRangeCount : DWORD
' IgnoreRangeArray : PATCH_IGNORE_RANGE* optional
' RetainRangeCount : DWORD
' RetainRangeArray : PATCH_RETAIN_RANGE* optional
' SignatureBufferSize : DWORD
' SignatureBuffer : LPSTR out
Declare PtrSafe Function GetFilePatchSignatureByBuffer Lib "mspatcha" ( _
    ByVal FileBufferWritable As LongPtr, _
    ByVal FileSize As Long, _
    ByVal OptionFlags As Long, _
    ByVal OptionData As LongPtr, _
    ByVal IgnoreRangeCount As Long, _
    ByVal IgnoreRangeArray As LongPtr, _
    ByVal RetainRangeCount As Long, _
    ByVal RetainRangeArray As LongPtr, _
    ByVal SignatureBufferSize As Long, _
    ByVal SignatureBuffer As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetFilePatchSignatureByBuffer = ctypes.windll.mspatcha.GetFilePatchSignatureByBuffer
GetFilePatchSignatureByBuffer.restype = wintypes.BOOL
GetFilePatchSignatureByBuffer.argtypes = [
    ctypes.POINTER(ctypes.c_ubyte),  # FileBufferWritable : BYTE* in/out
    wintypes.DWORD,  # FileSize : DWORD
    wintypes.DWORD,  # OptionFlags : DWORD
    ctypes.POINTER(None),  # OptionData : void* optional
    wintypes.DWORD,  # IgnoreRangeCount : DWORD
    ctypes.c_void_p,  # IgnoreRangeArray : PATCH_IGNORE_RANGE* optional
    wintypes.DWORD,  # RetainRangeCount : DWORD
    ctypes.c_void_p,  # RetainRangeArray : PATCH_RETAIN_RANGE* optional
    wintypes.DWORD,  # SignatureBufferSize : DWORD
    wintypes.LPSTR,  # SignatureBuffer : LPSTR out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('mspatcha.dll')
GetFilePatchSignatureByBuffer = Fiddle::Function.new(
  lib['GetFilePatchSignatureByBuffer'],
  [
    Fiddle::TYPE_VOIDP,  # FileBufferWritable : BYTE* in/out
    -Fiddle::TYPE_INT,  # FileSize : DWORD
    -Fiddle::TYPE_INT,  # OptionFlags : DWORD
    Fiddle::TYPE_VOIDP,  # OptionData : void* optional
    -Fiddle::TYPE_INT,  # IgnoreRangeCount : DWORD
    Fiddle::TYPE_VOIDP,  # IgnoreRangeArray : PATCH_IGNORE_RANGE* optional
    -Fiddle::TYPE_INT,  # RetainRangeCount : DWORD
    Fiddle::TYPE_VOIDP,  # RetainRangeArray : PATCH_RETAIN_RANGE* optional
    -Fiddle::TYPE_INT,  # SignatureBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # SignatureBuffer : LPSTR out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mspatcha")]
extern "system" {
    fn GetFilePatchSignatureByBuffer(
        FileBufferWritable: *mut u8,  // BYTE* in/out
        FileSize: u32,  // DWORD
        OptionFlags: u32,  // DWORD
        OptionData: *mut (),  // void* optional
        IgnoreRangeCount: u32,  // DWORD
        IgnoreRangeArray: *mut PATCH_IGNORE_RANGE,  // PATCH_IGNORE_RANGE* optional
        RetainRangeCount: u32,  // DWORD
        RetainRangeArray: *mut PATCH_RETAIN_RANGE,  // PATCH_RETAIN_RANGE* optional
        SignatureBufferSize: u32,  // DWORD
        SignatureBuffer: *mut u8  // LPSTR out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("mspatcha.dll")]
public static extern bool GetFilePatchSignatureByBuffer(IntPtr FileBufferWritable, uint FileSize, uint OptionFlags, IntPtr OptionData, uint IgnoreRangeCount, IntPtr IgnoreRangeArray, uint RetainRangeCount, IntPtr RetainRangeArray, uint SignatureBufferSize, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder SignatureBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'mspatcha_GetFilePatchSignatureByBuffer' -Namespace Win32 -PassThru
# $api::GetFilePatchSignatureByBuffer(FileBufferWritable, FileSize, OptionFlags, OptionData, IgnoreRangeCount, IgnoreRangeArray, RetainRangeCount, RetainRangeArray, SignatureBufferSize, SignatureBuffer)

#uselib "mspatcha.dll"
#func global GetFilePatchSignatureByBuffer "GetFilePatchSignatureByBuffer" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; GetFilePatchSignatureByBuffer varptr(FileBufferWritable), FileSize, OptionFlags, OptionData, IgnoreRangeCount, varptr(IgnoreRangeArray), RetainRangeCount, varptr(RetainRangeArray), SignatureBufferSize, varptr(SignatureBuffer)   ; 戻り値は stat
; FileBufferWritable : BYTE* in/out -> "sptr"
; FileSize : DWORD -> "sptr"
; OptionFlags : DWORD -> "sptr"
; OptionData : void* optional -> "sptr"
; IgnoreRangeCount : DWORD -> "sptr"
; IgnoreRangeArray : PATCH_IGNORE_RANGE* optional -> "sptr"
; RetainRangeCount : DWORD -> "sptr"
; RetainRangeArray : PATCH_RETAIN_RANGE* optional -> "sptr"
; SignatureBufferSize : DWORD -> "sptr"
; SignatureBuffer : LPSTR out -> "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。

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

var (
	mspatcha = windows.NewLazySystemDLL("mspatcha.dll")
	procGetFilePatchSignatureByBuffer = mspatcha.NewProc("GetFilePatchSignatureByBuffer")
)

// FileBufferWritable (BYTE* in/out), FileSize (DWORD), OptionFlags (DWORD), OptionData (void* optional), IgnoreRangeCount (DWORD), IgnoreRangeArray (PATCH_IGNORE_RANGE* optional), RetainRangeCount (DWORD), RetainRangeArray (PATCH_RETAIN_RANGE* optional), SignatureBufferSize (DWORD), SignatureBuffer (LPSTR out)
r1, _, err := procGetFilePatchSignatureByBuffer.Call(
	uintptr(FileBufferWritable),
	uintptr(FileSize),
	uintptr(OptionFlags),
	uintptr(OptionData),
	uintptr(IgnoreRangeCount),
	uintptr(IgnoreRangeArray),
	uintptr(RetainRangeCount),
	uintptr(RetainRangeArray),
	uintptr(SignatureBufferSize),
	uintptr(SignatureBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetFilePatchSignatureByBuffer(
  FileBufferWritable: Pointer;   // BYTE* in/out
  FileSize: DWORD;   // DWORD
  OptionFlags: DWORD;   // DWORD
  OptionData: Pointer;   // void* optional
  IgnoreRangeCount: DWORD;   // DWORD
  IgnoreRangeArray: Pointer;   // PATCH_IGNORE_RANGE* optional
  RetainRangeCount: DWORD;   // DWORD
  RetainRangeArray: Pointer;   // PATCH_RETAIN_RANGE* optional
  SignatureBufferSize: DWORD;   // DWORD
  SignatureBuffer: PAnsiChar   // LPSTR out
): BOOL; stdcall;
  external 'mspatcha.dll' name 'GetFilePatchSignatureByBuffer';

result := DllCall("mspatcha\GetFilePatchSignatureByBuffer"
    , "Ptr", FileBufferWritable   ; BYTE* in/out
    , "UInt", FileSize   ; DWORD
    , "UInt", OptionFlags   ; DWORD
    , "Ptr", OptionData   ; void* optional
    , "UInt", IgnoreRangeCount   ; DWORD
    , "Ptr", IgnoreRangeArray   ; PATCH_IGNORE_RANGE* optional
    , "UInt", RetainRangeCount   ; DWORD
    , "Ptr", RetainRangeArray   ; PATCH_RETAIN_RANGE* optional
    , "UInt", SignatureBufferSize   ; DWORD
    , "Ptr", SignatureBuffer   ; LPSTR out
    , "Int")   ; return: BOOL

●GetFilePatchSignatureByBuffer(FileBufferWritable, FileSize, OptionFlags, OptionData, IgnoreRangeCount, IgnoreRangeArray, RetainRangeCount, RetainRangeArray, SignatureBufferSize, SignatureBuffer) = DLL("mspatcha.dll", "bool GetFilePatchSignatureByBuffer(void*, dword, dword, void*, dword, void*, dword, void*, dword, char*)")
# 呼び出し: GetFilePatchSignatureByBuffer(FileBufferWritable, FileSize, OptionFlags, OptionData, IgnoreRangeCount, IgnoreRangeArray, RetainRangeCount, RetainRangeArray, SignatureBufferSize, SignatureBuffer)
# FileBufferWritable : BYTE* in/out -> "void*"
# FileSize : DWORD -> "dword"
# OptionFlags : DWORD -> "dword"
# OptionData : void* optional -> "void*"
# IgnoreRangeCount : DWORD -> "dword"
# IgnoreRangeArray : PATCH_IGNORE_RANGE* optional -> "void*"
# RetainRangeCount : DWORD -> "dword"
# RetainRangeArray : PATCH_RETAIN_RANGE* optional -> "void*"
# SignatureBufferSize : DWORD -> "dword"
# SignatureBuffer : LPSTR out -> "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)。

const std = @import("std");

extern "mspatcha" fn GetFilePatchSignatureByBuffer(
    FileBufferWritable: [*c]u8, // BYTE* in/out
    FileSize: u32, // DWORD
    OptionFlags: u32, // DWORD
    OptionData: ?*anyopaque, // void* optional
    IgnoreRangeCount: u32, // DWORD
    IgnoreRangeArray: [*c]PATCH_IGNORE_RANGE, // PATCH_IGNORE_RANGE* optional
    RetainRangeCount: u32, // DWORD
    RetainRangeArray: [*c]PATCH_RETAIN_RANGE, // PATCH_RETAIN_RANGE* optional
    SignatureBufferSize: u32, // DWORD
    SignatureBuffer: [*c]u8 // LPSTR out
) callconv(std.os.windows.WINAPI) i32;

proc GetFilePatchSignatureByBuffer(
    FileBufferWritable: ptr uint8,  # BYTE* in/out
    FileSize: uint32,  # DWORD
    OptionFlags: uint32,  # DWORD
    OptionData: pointer,  # void* optional
    IgnoreRangeCount: uint32,  # DWORD
    IgnoreRangeArray: ptr PATCH_IGNORE_RANGE,  # PATCH_IGNORE_RANGE* optional
    RetainRangeCount: uint32,  # DWORD
    RetainRangeArray: ptr PATCH_RETAIN_RANGE,  # PATCH_RETAIN_RANGE* optional
    SignatureBufferSize: uint32,  # DWORD
    SignatureBuffer: ptr char  # LPSTR out
): int32 {.importc: "GetFilePatchSignatureByBuffer", stdcall, dynlib: "mspatcha.dll".}

pragma(lib, "mspatcha");
extern(Windows)
int GetFilePatchSignatureByBuffer(
    ubyte* FileBufferWritable,   // BYTE* in/out
    uint FileSize,   // DWORD
    uint OptionFlags,   // DWORD
    void* OptionData,   // void* optional
    uint IgnoreRangeCount,   // DWORD
    PATCH_IGNORE_RANGE* IgnoreRangeArray,   // PATCH_IGNORE_RANGE* optional
    uint RetainRangeCount,   // DWORD
    PATCH_RETAIN_RANGE* RetainRangeArray,   // PATCH_RETAIN_RANGE* optional
    uint SignatureBufferSize,   // DWORD
    char* SignatureBuffer   // LPSTR out
);

ccall((:GetFilePatchSignatureByBuffer, "mspatcha.dll"), stdcall, Int32,
      (Ptr{UInt8}, UInt32, UInt32, Ptr{Cvoid}, UInt32, Ptr{PATCH_IGNORE_RANGE}, UInt32, Ptr{PATCH_RETAIN_RANGE}, UInt32, Ptr{UInt8}),
      FileBufferWritable, FileSize, OptionFlags, OptionData, IgnoreRangeCount, IgnoreRangeArray, RetainRangeCount, RetainRangeArray, SignatureBufferSize, SignatureBuffer)
# FileBufferWritable : BYTE* in/out -> Ptr{UInt8}
# FileSize : DWORD -> UInt32
# OptionFlags : DWORD -> UInt32
# OptionData : void* optional -> Ptr{Cvoid}
# IgnoreRangeCount : DWORD -> UInt32
# IgnoreRangeArray : PATCH_IGNORE_RANGE* optional -> Ptr{PATCH_IGNORE_RANGE}
# RetainRangeCount : DWORD -> UInt32
# RetainRangeArray : PATCH_RETAIN_RANGE* optional -> Ptr{PATCH_RETAIN_RANGE}
# SignatureBufferSize : DWORD -> UInt32
# SignatureBuffer : LPSTR out -> Ptr{UInt8}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GetFilePatchSignatureByBuffer(
    uint8_t* FileBufferWritable,
    uint32_t FileSize,
    uint32_t OptionFlags,
    void* OptionData,
    uint32_t IgnoreRangeCount,
    void* IgnoreRangeArray,
    uint32_t RetainRangeCount,
    void* RetainRangeArray,
    uint32_t SignatureBufferSize,
    char* SignatureBuffer);
]]
local mspatcha = ffi.load("mspatcha")
-- mspatcha.GetFilePatchSignatureByBuffer(FileBufferWritable, FileSize, OptionFlags, OptionData, IgnoreRangeCount, IgnoreRangeArray, RetainRangeCount, RetainRangeArray, SignatureBufferSize, SignatureBuffer)
-- FileBufferWritable : BYTE* in/out
-- FileSize : DWORD
-- OptionFlags : DWORD
-- OptionData : void* optional
-- IgnoreRangeCount : DWORD
-- IgnoreRangeArray : PATCH_IGNORE_RANGE* optional
-- RetainRangeCount : DWORD
-- RetainRangeArray : PATCH_RETAIN_RANGE* optional
-- SignatureBufferSize : DWORD
-- SignatureBuffer : LPSTR out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('mspatcha.dll');
const GetFilePatchSignatureByBuffer = lib.func('__stdcall', 'GetFilePatchSignatureByBuffer', 'int32_t', ['uint8_t *', 'uint32_t', 'uint32_t', 'void *', 'uint32_t', 'void *', 'uint32_t', 'void *', 'uint32_t', 'char *']);
// GetFilePatchSignatureByBuffer(FileBufferWritable, FileSize, OptionFlags, OptionData, IgnoreRangeCount, IgnoreRangeArray, RetainRangeCount, RetainRangeArray, SignatureBufferSize, SignatureBuffer)
// FileBufferWritable : BYTE* in/out -> 'uint8_t *'
// FileSize : DWORD -> 'uint32_t'
// OptionFlags : DWORD -> 'uint32_t'
// OptionData : void* optional -> 'void *'
// IgnoreRangeCount : DWORD -> 'uint32_t'
// IgnoreRangeArray : PATCH_IGNORE_RANGE* optional -> 'void *'
// RetainRangeCount : DWORD -> 'uint32_t'
// RetainRangeArray : PATCH_RETAIN_RANGE* optional -> 'void *'
// SignatureBufferSize : DWORD -> 'uint32_t'
// SignatureBuffer : LPSTR out -> 'char *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("mspatcha.dll", {
  GetFilePatchSignatureByBuffer: { parameters: ["pointer", "u32", "u32", "pointer", "u32", "pointer", "u32", "pointer", "u32", "buffer"], result: "i32" },
});
// lib.symbols.GetFilePatchSignatureByBuffer(FileBufferWritable, FileSize, OptionFlags, OptionData, IgnoreRangeCount, IgnoreRangeArray, RetainRangeCount, RetainRangeArray, SignatureBufferSize, SignatureBuffer)
// FileBufferWritable : BYTE* in/out -> "pointer"
// FileSize : DWORD -> "u32"
// OptionFlags : DWORD -> "u32"
// OptionData : void* optional -> "pointer"
// IgnoreRangeCount : DWORD -> "u32"
// IgnoreRangeArray : PATCH_IGNORE_RANGE* optional -> "pointer"
// RetainRangeCount : DWORD -> "u32"
// RetainRangeArray : PATCH_RETAIN_RANGE* optional -> "pointer"
// SignatureBufferSize : DWORD -> "u32"
// SignatureBuffer : LPSTR out -> "buffer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t GetFilePatchSignatureByBuffer(
    uint8_t* FileBufferWritable,
    uint32_t FileSize,
    uint32_t OptionFlags,
    void* OptionData,
    uint32_t IgnoreRangeCount,
    void* IgnoreRangeArray,
    uint32_t RetainRangeCount,
    void* RetainRangeArray,
    uint32_t SignatureBufferSize,
    char* SignatureBuffer);
C, "mspatcha.dll");
// $ffi->GetFilePatchSignatureByBuffer(FileBufferWritable, FileSize, OptionFlags, OptionData, IgnoreRangeCount, IgnoreRangeArray, RetainRangeCount, RetainRangeArray, SignatureBufferSize, SignatureBuffer);
// FileBufferWritable : BYTE* in/out
// FileSize : DWORD
// OptionFlags : DWORD
// OptionData : void* optional
// IgnoreRangeCount : DWORD
// IgnoreRangeArray : PATCH_IGNORE_RANGE* optional
// RetainRangeCount : DWORD
// RetainRangeArray : PATCH_RETAIN_RANGE* optional
// SignatureBufferSize : DWORD
// SignatureBuffer : LPSTR out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Mspatcha extends StdCallLibrary {
    Mspatcha INSTANCE = Native.load("mspatcha", Mspatcha.class);
    boolean GetFilePatchSignatureByBuffer(
        byte[] FileBufferWritable,   // BYTE* in/out
        int FileSize,   // DWORD
        int OptionFlags,   // DWORD
        Pointer OptionData,   // void* optional
        int IgnoreRangeCount,   // DWORD
        Pointer IgnoreRangeArray,   // PATCH_IGNORE_RANGE* optional
        int RetainRangeCount,   // DWORD
        Pointer RetainRangeArray,   // PATCH_RETAIN_RANGE* optional
        int SignatureBufferSize,   // DWORD
        byte[] SignatureBuffer   // LPSTR out
    );
}

@[Link("mspatcha")]
lib Libmspatcha
  fun GetFilePatchSignatureByBuffer = GetFilePatchSignatureByBuffer(
    FileBufferWritable : UInt8*,   # BYTE* in/out
    FileSize : UInt32,   # DWORD
    OptionFlags : UInt32,   # DWORD
    OptionData : Void*,   # void* optional
    IgnoreRangeCount : UInt32,   # DWORD
    IgnoreRangeArray : PATCH_IGNORE_RANGE*,   # PATCH_IGNORE_RANGE* optional
    RetainRangeCount : UInt32,   # DWORD
    RetainRangeArray : PATCH_RETAIN_RANGE*,   # PATCH_RETAIN_RANGE* optional
    SignatureBufferSize : UInt32,   # DWORD
    SignatureBuffer : UInt8*   # LPSTR out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef GetFilePatchSignatureByBufferNative = Int32 Function(Pointer<Uint8>, Uint32, Uint32, Pointer<Void>, Uint32, Pointer<Void>, Uint32, Pointer<Void>, Uint32, Pointer<Utf8>);
typedef GetFilePatchSignatureByBufferDart = int Function(Pointer<Uint8>, int, int, Pointer<Void>, int, Pointer<Void>, int, Pointer<Void>, int, Pointer<Utf8>);
final GetFilePatchSignatureByBuffer = DynamicLibrary.open('mspatcha.dll')
    .lookupFunction<GetFilePatchSignatureByBufferNative, GetFilePatchSignatureByBufferDart>('GetFilePatchSignatureByBuffer');
// FileBufferWritable : BYTE* in/out -> Pointer<Uint8>
// FileSize : DWORD -> Uint32
// OptionFlags : DWORD -> Uint32
// OptionData : void* optional -> Pointer<Void>
// IgnoreRangeCount : DWORD -> Uint32
// IgnoreRangeArray : PATCH_IGNORE_RANGE* optional -> Pointer<Void>
// RetainRangeCount : DWORD -> Uint32
// RetainRangeArray : PATCH_RETAIN_RANGE* optional -> Pointer<Void>
// SignatureBufferSize : DWORD -> Uint32
// SignatureBuffer : LPSTR out -> Pointer<Utf8>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetFilePatchSignatureByBuffer(
  FileBufferWritable: Pointer;   // BYTE* in/out
  FileSize: DWORD;   // DWORD
  OptionFlags: DWORD;   // DWORD
  OptionData: Pointer;   // void* optional
  IgnoreRangeCount: DWORD;   // DWORD
  IgnoreRangeArray: Pointer;   // PATCH_IGNORE_RANGE* optional
  RetainRangeCount: DWORD;   // DWORD
  RetainRangeArray: Pointer;   // PATCH_RETAIN_RANGE* optional
  SignatureBufferSize: DWORD;   // DWORD
  SignatureBuffer: PAnsiChar   // LPSTR out
): BOOL; stdcall;
  external 'mspatcha.dll' name 'GetFilePatchSignatureByBuffer';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GetFilePatchSignatureByBuffer"
  c_GetFilePatchSignatureByBuffer :: Ptr Word8 -> Word32 -> Word32 -> Ptr () -> Word32 -> Ptr () -> Word32 -> Ptr () -> Word32 -> CString -> IO CInt
-- FileBufferWritable : BYTE* in/out -> Ptr Word8
-- FileSize : DWORD -> Word32
-- OptionFlags : DWORD -> Word32
-- OptionData : void* optional -> Ptr ()
-- IgnoreRangeCount : DWORD -> Word32
-- IgnoreRangeArray : PATCH_IGNORE_RANGE* optional -> Ptr ()
-- RetainRangeCount : DWORD -> Word32
-- RetainRangeArray : PATCH_RETAIN_RANGE* optional -> Ptr ()
-- SignatureBufferSize : DWORD -> Word32
-- SignatureBuffer : LPSTR out -> CString
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let getfilepatchsignaturebybuffer =
  foreign "GetFilePatchSignatureByBuffer"
    ((ptr uint8_t) @-> uint32_t @-> uint32_t @-> (ptr void) @-> uint32_t @-> (ptr void) @-> uint32_t @-> (ptr void) @-> uint32_t @-> string @-> returning int32_t)
(* FileBufferWritable : BYTE* in/out -> (ptr uint8_t) *)
(* FileSize : DWORD -> uint32_t *)
(* OptionFlags : DWORD -> uint32_t *)
(* OptionData : void* optional -> (ptr void) *)
(* IgnoreRangeCount : DWORD -> uint32_t *)
(* IgnoreRangeArray : PATCH_IGNORE_RANGE* optional -> (ptr void) *)
(* RetainRangeCount : DWORD -> uint32_t *)
(* RetainRangeArray : PATCH_RETAIN_RANGE* optional -> (ptr void) *)
(* SignatureBufferSize : DWORD -> uint32_t *)
(* SignatureBuffer : LPSTR out -> string *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library mspatcha (t "mspatcha.dll"))
(cffi:use-foreign-library mspatcha)

(cffi:defcfun ("GetFilePatchSignatureByBuffer" get-file-patch-signature-by-buffer :convention :stdcall) :int32
  (file-buffer-writable :pointer)   ; BYTE* in/out
  (file-size :uint32)   ; DWORD
  (option-flags :uint32)   ; DWORD
  (option-data :pointer)   ; void* optional
  (ignore-range-count :uint32)   ; DWORD
  (ignore-range-array :pointer)   ; PATCH_IGNORE_RANGE* optional
  (retain-range-count :uint32)   ; DWORD
  (retain-range-array :pointer)   ; PATCH_RETAIN_RANGE* optional
  (signature-buffer-size :uint32)   ; DWORD
  (signature-buffer :pointer))   ; LPSTR out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetFilePatchSignatureByBuffer = Win32::API::More->new('mspatcha',
    'BOOL GetFilePatchSignatureByBuffer(LPVOID FileBufferWritable, DWORD FileSize, DWORD OptionFlags, LPVOID OptionData, DWORD IgnoreRangeCount, LPVOID IgnoreRangeArray, DWORD RetainRangeCount, LPVOID RetainRangeArray, DWORD SignatureBufferSize, LPSTR SignatureBuffer)');
# my $ret = $GetFilePatchSignatureByBuffer->Call($FileBufferWritable, $FileSize, $OptionFlags, $OptionData, $IgnoreRangeCount, $IgnoreRangeArray, $RetainRangeCount, $RetainRangeArray, $SignatureBufferSize, $SignatureBuffer);
# FileBufferWritable : BYTE* in/out -> LPVOID
# FileSize : DWORD -> DWORD
# OptionFlags : DWORD -> DWORD
# OptionData : void* optional -> LPVOID
# IgnoreRangeCount : DWORD -> DWORD
# IgnoreRangeArray : PATCH_IGNORE_RANGE* optional -> LPVOID
# RetainRangeCount : DWORD -> DWORD
# RetainRangeArray : PATCH_RETAIN_RANGE* optional -> LPVOID
# SignatureBufferSize : DWORD -> DWORD
# SignatureBuffer : LPSTR out -> LPSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。