SetupGetMultiSzFieldA

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

BOOL SetupGetMultiSzFieldA(
    INFCONTEXT* Context,
    DWORD FieldIndex,
    LPSTR ReturnBuffer,   // optional
    DWORD ReturnBufferSize,
    DWORD* RequiredSize   // optional
);

<DllImport("SETUPAPI.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupGetMultiSzFieldA(
    Context As IntPtr,   ' INFCONTEXT*
    FieldIndex As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> ReturnBuffer As System.Text.StringBuilder,   ' LPSTR optional, out
    ReturnBufferSize As UInteger,   ' DWORD
    RequiredSize As IntPtr   ' DWORD* optional, out
) As Boolean
End Function

' Context : INFCONTEXT*
' FieldIndex : DWORD
' ReturnBuffer : LPSTR optional, out
' ReturnBufferSize : DWORD
' RequiredSize : DWORD* optional, out
Declare PtrSafe Function SetupGetMultiSzFieldA Lib "setupapi" ( _
    ByVal Context As LongPtr, _
    ByVal FieldIndex As Long, _
    ByVal ReturnBuffer As String, _
    ByVal ReturnBufferSize As Long, _
    ByVal RequiredSize 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

SetupGetMultiSzFieldA = ctypes.windll.setupapi.SetupGetMultiSzFieldA
SetupGetMultiSzFieldA.restype = wintypes.BOOL
SetupGetMultiSzFieldA.argtypes = [
    ctypes.c_void_p,  # Context : INFCONTEXT*
    wintypes.DWORD,  # FieldIndex : DWORD
    wintypes.LPSTR,  # ReturnBuffer : LPSTR optional, out
    wintypes.DWORD,  # ReturnBufferSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # RequiredSize : DWORD* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupGetMultiSzFieldA = Fiddle::Function.new(
  lib['SetupGetMultiSzFieldA'],
  [
    Fiddle::TYPE_VOIDP,  # Context : INFCONTEXT*
    -Fiddle::TYPE_INT,  # FieldIndex : DWORD
    Fiddle::TYPE_VOIDP,  # ReturnBuffer : LPSTR optional, out
    -Fiddle::TYPE_INT,  # ReturnBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # RequiredSize : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)

#[link(name = "setupapi")]
extern "system" {
    fn SetupGetMultiSzFieldA(
        Context: *mut INFCONTEXT,  // INFCONTEXT*
        FieldIndex: u32,  // DWORD
        ReturnBuffer: *mut u8,  // LPSTR optional, out
        ReturnBufferSize: u32,  // DWORD
        RequiredSize: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool SetupGetMultiSzFieldA(IntPtr Context, uint FieldIndex, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder ReturnBuffer, uint ReturnBufferSize, IntPtr RequiredSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupGetMultiSzFieldA' -Namespace Win32 -PassThru
# $api::SetupGetMultiSzFieldA(Context, FieldIndex, ReturnBuffer, ReturnBufferSize, RequiredSize)

#uselib "SETUPAPI.dll"
#func global SetupGetMultiSzFieldA "SetupGetMultiSzFieldA" sptr, sptr, sptr, sptr, sptr
; SetupGetMultiSzFieldA varptr(Context), FieldIndex, varptr(ReturnBuffer), ReturnBufferSize, varptr(RequiredSize)   ; 戻り値は stat
; Context : INFCONTEXT* -> "sptr"
; FieldIndex : DWORD -> "sptr"
; ReturnBuffer : LPSTR optional, out -> "sptr"
; ReturnBufferSize : DWORD -> "sptr"
; RequiredSize : DWORD* optional, 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 "SETUPAPI.dll"
#cfunc global SetupGetMultiSzFieldA "SetupGetMultiSzFieldA" var, int, var, int, var
; res = SetupGetMultiSzFieldA(Context, FieldIndex, ReturnBuffer, ReturnBufferSize, RequiredSize)
; Context : INFCONTEXT* -> "var"
; FieldIndex : DWORD -> "int"
; ReturnBuffer : LPSTR optional, out -> "var"
; ReturnBufferSize : DWORD -> "int"
; RequiredSize : DWORD* optional, 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。

; BOOL SetupGetMultiSzFieldA(INFCONTEXT* Context, DWORD FieldIndex, LPSTR ReturnBuffer, DWORD ReturnBufferSize, DWORD* RequiredSize)
#uselib "SETUPAPI.dll"
#cfunc global SetupGetMultiSzFieldA "SetupGetMultiSzFieldA" var, int, var, int, var
; res = SetupGetMultiSzFieldA(Context, FieldIndex, ReturnBuffer, ReturnBufferSize, RequiredSize)
; Context : INFCONTEXT* -> "var"
; FieldIndex : DWORD -> "int"
; ReturnBuffer : LPSTR optional, out -> "var"
; ReturnBufferSize : DWORD -> "int"
; RequiredSize : DWORD* optional, 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 (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupGetMultiSzFieldA = setupapi.NewProc("SetupGetMultiSzFieldA")
)

// Context (INFCONTEXT*), FieldIndex (DWORD), ReturnBuffer (LPSTR optional, out), ReturnBufferSize (DWORD), RequiredSize (DWORD* optional, out)
r1, _, err := procSetupGetMultiSzFieldA.Call(
	uintptr(Context),
	uintptr(FieldIndex),
	uintptr(ReturnBuffer),
	uintptr(ReturnBufferSize),
	uintptr(RequiredSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetupGetMultiSzFieldA(
  Context: Pointer;   // INFCONTEXT*
  FieldIndex: DWORD;   // DWORD
  ReturnBuffer: PAnsiChar;   // LPSTR optional, out
  ReturnBufferSize: DWORD;   // DWORD
  RequiredSize: Pointer   // DWORD* optional, out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupGetMultiSzFieldA';

result := DllCall("SETUPAPI\SetupGetMultiSzFieldA"
    , "Ptr", Context   ; INFCONTEXT*
    , "UInt", FieldIndex   ; DWORD
    , "Ptr", ReturnBuffer   ; LPSTR optional, out
    , "UInt", ReturnBufferSize   ; DWORD
    , "Ptr", RequiredSize   ; DWORD* optional, out
    , "Int")   ; return: BOOL

●SetupGetMultiSzFieldA(Context, FieldIndex, ReturnBuffer, ReturnBufferSize, RequiredSize) = DLL("SETUPAPI.dll", "bool SetupGetMultiSzFieldA(void*, dword, char*, dword, void*)")
# 呼び出し: SetupGetMultiSzFieldA(Context, FieldIndex, ReturnBuffer, ReturnBufferSize, RequiredSize)
# Context : INFCONTEXT* -> "void*"
# FieldIndex : DWORD -> "dword"
# ReturnBuffer : LPSTR optional, out -> "char*"
# ReturnBufferSize : DWORD -> "dword"
# RequiredSize : DWORD* optional, 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)。