DsUnquoteRdnValueA

// DSPARSE.dll  (ANSI / -A)
#include <windows.h>

DWORD DsUnquoteRdnValueA(
    DWORD cQuotedRdnValueLength,
    LPCSTR psQuotedRdnValue,
    DWORD* pcUnquotedRdnValueLength,
    LPSTR psUnquotedRdnValue
);

<DllImport("DSPARSE.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function DsUnquoteRdnValueA(
    cQuotedRdnValueLength As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> psQuotedRdnValue As String,   ' LPCSTR
    ByRef pcUnquotedRdnValueLength As UInteger,   ' DWORD* in/out
    <MarshalAs(UnmanagedType.LPStr)> psUnquotedRdnValue As System.Text.StringBuilder   ' LPSTR out
) As UInteger
End Function

' cQuotedRdnValueLength : DWORD
' psQuotedRdnValue : LPCSTR
' pcUnquotedRdnValueLength : DWORD* in/out
' psUnquotedRdnValue : LPSTR out
Declare PtrSafe Function DsUnquoteRdnValueA Lib "dsparse" ( _
    ByVal cQuotedRdnValueLength As Long, _
    ByVal psQuotedRdnValue As String, _
    ByRef pcUnquotedRdnValueLength As Long, _
    ByVal psUnquotedRdnValue 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

DsUnquoteRdnValueA = ctypes.windll.dsparse.DsUnquoteRdnValueA
DsUnquoteRdnValueA.restype = wintypes.DWORD
DsUnquoteRdnValueA.argtypes = [
    wintypes.DWORD,  # cQuotedRdnValueLength : DWORD
    wintypes.LPCSTR,  # psQuotedRdnValue : LPCSTR
    ctypes.POINTER(wintypes.DWORD),  # pcUnquotedRdnValueLength : DWORD* in/out
    wintypes.LPSTR,  # psUnquotedRdnValue : LPSTR out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DSPARSE.dll')
DsUnquoteRdnValueA = Fiddle::Function.new(
  lib['DsUnquoteRdnValueA'],
  [
    -Fiddle::TYPE_INT,  # cQuotedRdnValueLength : DWORD
    Fiddle::TYPE_VOIDP,  # psQuotedRdnValue : LPCSTR
    Fiddle::TYPE_VOIDP,  # pcUnquotedRdnValueLength : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # psUnquotedRdnValue : LPSTR out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "dsparse")]
extern "system" {
    fn DsUnquoteRdnValueA(
        cQuotedRdnValueLength: u32,  // DWORD
        psQuotedRdnValue: *const u8,  // LPCSTR
        pcUnquotedRdnValueLength: *mut u32,  // DWORD* in/out
        psUnquotedRdnValue: *mut u8  // LPSTR out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DSPARSE.dll", CharSet = CharSet.Ansi)]
public static extern uint DsUnquoteRdnValueA(uint cQuotedRdnValueLength, [MarshalAs(UnmanagedType.LPStr)] string psQuotedRdnValue, ref uint pcUnquotedRdnValueLength, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder psUnquotedRdnValue);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DSPARSE_DsUnquoteRdnValueA' -Namespace Win32 -PassThru
# $api::DsUnquoteRdnValueA(cQuotedRdnValueLength, psQuotedRdnValue, pcUnquotedRdnValueLength, psUnquotedRdnValue)

#uselib "DSPARSE.dll"
#func global DsUnquoteRdnValueA "DsUnquoteRdnValueA" sptr, sptr, sptr, sptr
; DsUnquoteRdnValueA cQuotedRdnValueLength, psQuotedRdnValue, varptr(pcUnquotedRdnValueLength), varptr(psUnquotedRdnValue)   ; 戻り値は stat
; cQuotedRdnValueLength : DWORD -> "sptr"
; psQuotedRdnValue : LPCSTR -> "sptr"
; pcUnquotedRdnValueLength : DWORD* in/out -> "sptr"
; psUnquotedRdnValue : 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。

#uselib "DSPARSE.dll"
#cfunc global DsUnquoteRdnValueA "DsUnquoteRdnValueA" int, str, var, var
; res = DsUnquoteRdnValueA(cQuotedRdnValueLength, psQuotedRdnValue, pcUnquotedRdnValueLength, psUnquotedRdnValue)
; cQuotedRdnValueLength : DWORD -> "int"
; psQuotedRdnValue : LPCSTR -> "str"
; pcUnquotedRdnValueLength : DWORD* in/out -> "var"
; psUnquotedRdnValue : LPSTR 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 DsUnquoteRdnValueA(DWORD cQuotedRdnValueLength, LPCSTR psQuotedRdnValue, DWORD* pcUnquotedRdnValueLength, LPSTR psUnquotedRdnValue)
#uselib "DSPARSE.dll"
#cfunc global DsUnquoteRdnValueA "DsUnquoteRdnValueA" int, str, var, var
; res = DsUnquoteRdnValueA(cQuotedRdnValueLength, psQuotedRdnValue, pcUnquotedRdnValueLength, psUnquotedRdnValue)
; cQuotedRdnValueLength : DWORD -> "int"
; psQuotedRdnValue : LPCSTR -> "str"
; pcUnquotedRdnValueLength : DWORD* in/out -> "var"
; psUnquotedRdnValue : LPSTR 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 (
	dsparse = windows.NewLazySystemDLL("DSPARSE.dll")
	procDsUnquoteRdnValueA = dsparse.NewProc("DsUnquoteRdnValueA")
)

// cQuotedRdnValueLength (DWORD), psQuotedRdnValue (LPCSTR), pcUnquotedRdnValueLength (DWORD* in/out), psUnquotedRdnValue (LPSTR out)
r1, _, err := procDsUnquoteRdnValueA.Call(
	uintptr(cQuotedRdnValueLength),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(psQuotedRdnValue))),
	uintptr(pcUnquotedRdnValueLength),
	uintptr(psUnquotedRdnValue),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DsUnquoteRdnValueA(
  cQuotedRdnValueLength: DWORD;   // DWORD
  psQuotedRdnValue: PAnsiChar;   // LPCSTR
  pcUnquotedRdnValueLength: Pointer;   // DWORD* in/out
  psUnquotedRdnValue: PAnsiChar   // LPSTR out
): DWORD; stdcall;
  external 'DSPARSE.dll' name 'DsUnquoteRdnValueA';

result := DllCall("DSPARSE\DsUnquoteRdnValueA"
    , "UInt", cQuotedRdnValueLength   ; DWORD
    , "AStr", psQuotedRdnValue   ; LPCSTR
    , "Ptr", pcUnquotedRdnValueLength   ; DWORD* in/out
    , "Ptr", psUnquotedRdnValue   ; LPSTR out
    , "UInt")   ; return: DWORD

●DsUnquoteRdnValueA(cQuotedRdnValueLength, psQuotedRdnValue, pcUnquotedRdnValueLength, psUnquotedRdnValue) = DLL("DSPARSE.dll", "dword DsUnquoteRdnValueA(dword, char*, void*, char*)")
# 呼び出し: DsUnquoteRdnValueA(cQuotedRdnValueLength, psQuotedRdnValue, pcUnquotedRdnValueLength, psUnquotedRdnValue)
# cQuotedRdnValueLength : DWORD -> "dword"
# psQuotedRdnValue : LPCSTR -> "char*"
# pcUnquotedRdnValueLength : DWORD* in/out -> "void*"
# psUnquotedRdnValue : 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)。