UnDecorateSymbolNameW

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

DWORD UnDecorateSymbolNameW(
    LPCWSTR name,
    LPWSTR outputString,
    DWORD maxStringLength,
    DWORD flags
);

<DllImport("dbghelp.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function UnDecorateSymbolNameW(
    <MarshalAs(UnmanagedType.LPWStr)> name As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> outputString As System.Text.StringBuilder,   ' LPWSTR out
    maxStringLength As UInteger,   ' DWORD
    flags As UInteger   ' DWORD
) As UInteger
End Function

' name : LPCWSTR
' outputString : LPWSTR out
' maxStringLength : DWORD
' flags : DWORD
Declare PtrSafe Function UnDecorateSymbolNameW Lib "dbghelp" ( _
    ByVal name As LongPtr, _
    ByVal outputString As LongPtr, _
    ByVal maxStringLength As Long, _
    ByVal flags 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

UnDecorateSymbolNameW = ctypes.windll.dbghelp.UnDecorateSymbolNameW
UnDecorateSymbolNameW.restype = wintypes.DWORD
UnDecorateSymbolNameW.argtypes = [
    wintypes.LPCWSTR,  # name : LPCWSTR
    wintypes.LPWSTR,  # outputString : LPWSTR out
    wintypes.DWORD,  # maxStringLength : DWORD
    wintypes.DWORD,  # flags : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dbghelp.dll')
UnDecorateSymbolNameW = Fiddle::Function.new(
  lib['UnDecorateSymbolNameW'],
  [
    Fiddle::TYPE_VOIDP,  # name : LPCWSTR
    Fiddle::TYPE_VOIDP,  # outputString : LPWSTR out
    -Fiddle::TYPE_INT,  # maxStringLength : DWORD
    -Fiddle::TYPE_INT,  # flags : DWORD
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "dbghelp")]
extern "system" {
    fn UnDecorateSymbolNameW(
        name: *const u16,  // LPCWSTR
        outputString: *mut u16,  // LPWSTR out
        maxStringLength: u32,  // DWORD
        flags: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dbghelp.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern uint UnDecorateSymbolNameW([MarshalAs(UnmanagedType.LPWStr)] string name, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder outputString, uint maxStringLength, uint flags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dbghelp_UnDecorateSymbolNameW' -Namespace Win32 -PassThru
# $api::UnDecorateSymbolNameW(name, outputString, maxStringLength, flags)

#uselib "dbghelp.dll"
#func global UnDecorateSymbolNameW "UnDecorateSymbolNameW" wptr, wptr, wptr, wptr
; UnDecorateSymbolNameW name, varptr(outputString), maxStringLength, flags   ; 戻り値は stat
; name : LPCWSTR -> "wptr"
; outputString : LPWSTR out -> "wptr"
; maxStringLength : DWORD -> "wptr"
; flags : DWORD -> "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。

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

var (
	dbghelp = windows.NewLazySystemDLL("dbghelp.dll")
	procUnDecorateSymbolNameW = dbghelp.NewProc("UnDecorateSymbolNameW")
)

// name (LPCWSTR), outputString (LPWSTR out), maxStringLength (DWORD), flags (DWORD)
r1, _, err := procUnDecorateSymbolNameW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(name))),
	uintptr(outputString),
	uintptr(maxStringLength),
	uintptr(flags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function UnDecorateSymbolNameW(
  name: PWideChar;   // LPCWSTR
  outputString: PWideChar;   // LPWSTR out
  maxStringLength: DWORD;   // DWORD
  flags: DWORD   // DWORD
): DWORD; stdcall;
  external 'dbghelp.dll' name 'UnDecorateSymbolNameW';

result := DllCall("dbghelp\UnDecorateSymbolNameW"
    , "WStr", name   ; LPCWSTR
    , "Ptr", outputString   ; LPWSTR out
    , "UInt", maxStringLength   ; DWORD
    , "UInt", flags   ; DWORD
    , "UInt")   ; return: DWORD

●UnDecorateSymbolNameW(name, outputString, maxStringLength, flags) = DLL("dbghelp.dll", "dword UnDecorateSymbolNameW(char*, char*, dword, dword)")
# 呼び出し: UnDecorateSymbolNameW(name, outputString, maxStringLength, flags)
# name : LPCWSTR -> "char*"
# outputString : LPWSTR out -> "char*"
# maxStringLength : DWORD -> "dword"
# flags : DWORD -> "dword"
# 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。

const std = @import("std");

extern "dbghelp" fn UnDecorateSymbolNameW(
    name: [*c]const u16, // LPCWSTR
    outputString: [*c]u16, // LPWSTR out
    maxStringLength: u32, // DWORD
    flags: u32 // DWORD
) callconv(std.os.windows.WINAPI) u32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc UnDecorateSymbolNameW(
    name: WideCString,  # LPCWSTR
    outputString: ptr uint16,  # LPWSTR out
    maxStringLength: uint32,  # DWORD
    flags: uint32  # DWORD
): uint32 {.importc: "UnDecorateSymbolNameW", stdcall, dynlib: "dbghelp.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "dbghelp");
extern(Windows)
uint UnDecorateSymbolNameW(
    const(wchar)* name,   // LPCWSTR
    wchar* outputString,   // LPWSTR out
    uint maxStringLength,   // DWORD
    uint flags   // DWORD
);

ccall((:UnDecorateSymbolNameW, "dbghelp.dll"), stdcall, UInt32,
      (Cwstring, Ptr{UInt16}, UInt32, UInt32),
      name, outputString, maxStringLength, flags)
# name : LPCWSTR -> Cwstring
# outputString : LPWSTR out -> Ptr{UInt16}
# maxStringLength : DWORD -> UInt32
# flags : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
uint32_t UnDecorateSymbolNameW(
    const uint16_t* name,
    uint16_t* outputString,
    uint32_t maxStringLength,
    uint32_t flags);
]]
local dbghelp = ffi.load("dbghelp")
-- dbghelp.UnDecorateSymbolNameW(name, outputString, maxStringLength, flags)
-- name : LPCWSTR
-- outputString : LPWSTR out
-- maxStringLength : DWORD
-- flags : DWORD
-- 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('dbghelp.dll');
const UnDecorateSymbolNameW = lib.func('__stdcall', 'UnDecorateSymbolNameW', 'uint32_t', ['str16', 'uint16_t *', 'uint32_t', 'uint32_t']);
// UnDecorateSymbolNameW(name, outputString, maxStringLength, flags)
// name : LPCWSTR -> 'str16'
// outputString : LPWSTR out -> 'uint16_t *'
// maxStringLength : DWORD -> 'uint32_t'
// flags : DWORD -> 'uint32_t'
// 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("dbghelp.dll", {
  UnDecorateSymbolNameW: { parameters: ["buffer", "buffer", "u32", "u32"], result: "u32" },
});
// lib.symbols.UnDecorateSymbolNameW(name, outputString, maxStringLength, flags)
// name : LPCWSTR -> "buffer"
// outputString : LPWSTR out -> "buffer"
// maxStringLength : DWORD -> "u32"
// flags : DWORD -> "u32"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t UnDecorateSymbolNameW(
    const uint16_t* name,
    uint16_t* outputString,
    uint32_t maxStringLength,
    uint32_t flags);
C, "dbghelp.dll");
// $ffi->UnDecorateSymbolNameW(name, outputString, maxStringLength, flags);
// name : LPCWSTR
// outputString : LPWSTR out
// maxStringLength : DWORD
// flags : DWORD
// 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 Dbghelp extends StdCallLibrary {
    Dbghelp INSTANCE = Native.load("dbghelp", Dbghelp.class, W32APIOptions.UNICODE_OPTIONS);
    int UnDecorateSymbolNameW(
        WString name,   // LPCWSTR
        char[] outputString,   // LPWSTR out
        int maxStringLength,   // DWORD
        int flags   // DWORD
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("dbghelp")]
lib Libdbghelp
  fun UnDecorateSymbolNameW = UnDecorateSymbolNameW(
    name : UInt16*,   # LPCWSTR
    outputString : UInt16*,   # LPWSTR out
    maxStringLength : UInt32,   # DWORD
    flags : UInt32   # DWORD
  ) : UInt32
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 UnDecorateSymbolNameWNative = Uint32 Function(Pointer<Utf16>, Pointer<Utf16>, Uint32, Uint32);
typedef UnDecorateSymbolNameWDart = int Function(Pointer<Utf16>, Pointer<Utf16>, int, int);
final UnDecorateSymbolNameW = DynamicLibrary.open('dbghelp.dll')
    .lookupFunction<UnDecorateSymbolNameWNative, UnDecorateSymbolNameWDart>('UnDecorateSymbolNameW');
// name : LPCWSTR -> Pointer<Utf16>
// outputString : LPWSTR out -> Pointer<Utf16>
// maxStringLength : DWORD -> Uint32
// flags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function UnDecorateSymbolNameW(
  name: PWideChar;   // LPCWSTR
  outputString: PWideChar;   // LPWSTR out
  maxStringLength: DWORD;   // DWORD
  flags: DWORD   // DWORD
): DWORD; stdcall;
  external 'dbghelp.dll' name 'UnDecorateSymbolNameW';

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

foreign import stdcall safe "UnDecorateSymbolNameW"
  c_UnDecorateSymbolNameW :: CWString -> CWString -> Word32 -> Word32 -> IO Word32
-- name : LPCWSTR -> CWString
-- outputString : LPWSTR out -> CWString
-- maxStringLength : DWORD -> Word32
-- flags : DWORD -> Word32
-- 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 undecoratesymbolnamew =
  foreign "UnDecorateSymbolNameW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> uint32_t @-> uint32_t @-> returning uint32_t)
(* name : LPCWSTR -> (ptr uint16_t) *)
(* outputString : LPWSTR out -> (ptr uint16_t) *)
(* maxStringLength : DWORD -> uint32_t *)
(* flags : DWORD -> uint32_t *)
(* 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 dbghelp (t "dbghelp.dll"))
(cffi:use-foreign-library dbghelp)

(cffi:defcfun ("UnDecorateSymbolNameW" un-decorate-symbol-name-w :convention :stdcall) :uint32
  (name (:string :encoding :utf-16le))   ; LPCWSTR
  (output-string :pointer)   ; LPWSTR out
  (max-string-length :uint32)   ; DWORD
  (flags :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $UnDecorateSymbolNameW = Win32::API::More->new('dbghelp',
    'DWORD UnDecorateSymbolNameW(LPCWSTR name, LPWSTR outputString, DWORD maxStringLength, DWORD flags)');
# my $ret = $UnDecorateSymbolNameW->Call($name, $outputString, $maxStringLength, $flags);
# name : LPCWSTR -> LPCWSTR
# outputString : LPWSTR out -> LPWSTR
# maxStringLength : DWORD -> DWORD
# flags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。