DeviceCapabilitiesW

// winspool.drv  (Unicode / -W)
#include <windows.h>

INT DeviceCapabilitiesW(
    LPCWSTR pDevice,
    LPCWSTR pPort,   // optional
    PRINTER_DEVICE_CAPABILITIES fwCapability,
    LPWSTR pOutput,   // optional
    const DEVMODEW* pDevMode   // optional
);

<DllImport("winspool.drv", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function DeviceCapabilitiesW(
    <MarshalAs(UnmanagedType.LPWStr)> pDevice As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> pPort As String,   ' LPCWSTR optional
    fwCapability As UShort,   ' PRINTER_DEVICE_CAPABILITIES
    <MarshalAs(UnmanagedType.LPWStr)> pOutput As System.Text.StringBuilder,   ' LPWSTR optional, out
    pDevMode As IntPtr   ' DEVMODEW* optional
) As Integer
End Function

' pDevice : LPCWSTR
' pPort : LPCWSTR optional
' fwCapability : PRINTER_DEVICE_CAPABILITIES
' pOutput : LPWSTR optional, out
' pDevMode : DEVMODEW* optional
Declare PtrSafe Function DeviceCapabilitiesW Lib "winspool.drv" ( _
    ByVal pDevice As LongPtr, _
    ByVal pPort As LongPtr, _
    ByVal fwCapability As Integer, _
    ByVal pOutput As LongPtr, _
    ByVal pDevMode 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

DeviceCapabilitiesW = ctypes.windll.LoadLibrary("winspool.drv").DeviceCapabilitiesW
DeviceCapabilitiesW.restype = ctypes.c_int
DeviceCapabilitiesW.argtypes = [
    wintypes.LPCWSTR,  # pDevice : LPCWSTR
    wintypes.LPCWSTR,  # pPort : LPCWSTR optional
    ctypes.c_ushort,  # fwCapability : PRINTER_DEVICE_CAPABILITIES
    wintypes.LPWSTR,  # pOutput : LPWSTR optional, out
    ctypes.c_void_p,  # pDevMode : DEVMODEW* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
DeviceCapabilitiesW = Fiddle::Function.new(
  lib['DeviceCapabilitiesW'],
  [
    Fiddle::TYPE_VOIDP,  # pDevice : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pPort : LPCWSTR optional
    -Fiddle::TYPE_SHORT,  # fwCapability : PRINTER_DEVICE_CAPABILITIES
    Fiddle::TYPE_VOIDP,  # pOutput : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # pDevMode : DEVMODEW* optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winspool.drv")]
extern "system" {
    fn DeviceCapabilitiesW(
        pDevice: *const u16,  // LPCWSTR
        pPort: *const u16,  // LPCWSTR optional
        fwCapability: u16,  // PRINTER_DEVICE_CAPABILITIES
        pOutput: *mut u16,  // LPWSTR optional, out
        pDevMode: *const DEVMODEW  // DEVMODEW* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("winspool.drv", CharSet = CharSet.Unicode)]
public static extern int DeviceCapabilitiesW([MarshalAs(UnmanagedType.LPWStr)] string pDevice, [MarshalAs(UnmanagedType.LPWStr)] string pPort, ushort fwCapability, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pOutput, IntPtr pDevMode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_DeviceCapabilitiesW' -Namespace Win32 -PassThru
# $api::DeviceCapabilitiesW(pDevice, pPort, fwCapability, pOutput, pDevMode)

#uselib "winspool.drv"
#func global DeviceCapabilitiesW "DeviceCapabilitiesW" wptr, wptr, wptr, wptr, wptr
; DeviceCapabilitiesW pDevice, pPort, fwCapability, varptr(pOutput), varptr(pDevMode)   ; 戻り値は stat
; pDevice : LPCWSTR -> "wptr"
; pPort : LPCWSTR optional -> "wptr"
; fwCapability : PRINTER_DEVICE_CAPABILITIES -> "wptr"
; pOutput : LPWSTR optional, out -> "wptr"
; pDevMode : DEVMODEW* optional -> "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 (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procDeviceCapabilitiesW = winspool_drv.NewProc("DeviceCapabilitiesW")
)

// pDevice (LPCWSTR), pPort (LPCWSTR optional), fwCapability (PRINTER_DEVICE_CAPABILITIES), pOutput (LPWSTR optional, out), pDevMode (DEVMODEW* optional)
r1, _, err := procDeviceCapabilitiesW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pDevice))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pPort))),
	uintptr(fwCapability),
	uintptr(pOutput),
	uintptr(pDevMode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function DeviceCapabilitiesW(
  pDevice: PWideChar;   // LPCWSTR
  pPort: PWideChar;   // LPCWSTR optional
  fwCapability: Word;   // PRINTER_DEVICE_CAPABILITIES
  pOutput: PWideChar;   // LPWSTR optional, out
  pDevMode: Pointer   // DEVMODEW* optional
): Integer; stdcall;
  external 'winspool.drv' name 'DeviceCapabilitiesW';

result := DllCall("winspool.drv\DeviceCapabilitiesW"
    , "WStr", pDevice   ; LPCWSTR
    , "WStr", pPort   ; LPCWSTR optional
    , "UShort", fwCapability   ; PRINTER_DEVICE_CAPABILITIES
    , "Ptr", pOutput   ; LPWSTR optional, out
    , "Ptr", pDevMode   ; DEVMODEW* optional
    , "Int")   ; return: INT

●DeviceCapabilitiesW(pDevice, pPort, fwCapability, pOutput, pDevMode) = DLL("winspool.drv", "int DeviceCapabilitiesW(char*, char*, int, char*, void*)")
# 呼び出し: DeviceCapabilitiesW(pDevice, pPort, fwCapability, pOutput, pDevMode)
# pDevice : LPCWSTR -> "char*"
# pPort : LPCWSTR optional -> "char*"
# fwCapability : PRINTER_DEVICE_CAPABILITIES -> "int"
# pOutput : LPWSTR optional, out -> "char*"
# pDevMode : DEVMODEW* optional -> "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)。
# ※-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 "winspool.drv" fn DeviceCapabilitiesW(
    pDevice: [*c]const u16, // LPCWSTR
    pPort: [*c]const u16, // LPCWSTR optional
    fwCapability: u16, // PRINTER_DEVICE_CAPABILITIES
    pOutput: [*c]u16, // LPWSTR optional, out
    pDevMode: [*c]DEVMODEW // DEVMODEW* optional
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc DeviceCapabilitiesW(
    pDevice: WideCString,  # LPCWSTR
    pPort: WideCString,  # LPCWSTR optional
    fwCapability: uint16,  # PRINTER_DEVICE_CAPABILITIES
    pOutput: ptr uint16,  # LPWSTR optional, out
    pDevMode: ptr DEVMODEW  # DEVMODEW* optional
): int32 {.importc: "DeviceCapabilitiesW", stdcall, dynlib: "winspool.drv".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "winspool.drv");
extern(Windows)
int DeviceCapabilitiesW(
    const(wchar)* pDevice,   // LPCWSTR
    const(wchar)* pPort,   // LPCWSTR optional
    ushort fwCapability,   // PRINTER_DEVICE_CAPABILITIES
    wchar* pOutput,   // LPWSTR optional, out
    DEVMODEW* pDevMode   // DEVMODEW* optional
);

ccall((:DeviceCapabilitiesW, "winspool.drv"), stdcall, Int32,
      (Cwstring, Cwstring, UInt16, Ptr{UInt16}, Ptr{DEVMODEW}),
      pDevice, pPort, fwCapability, pOutput, pDevMode)
# pDevice : LPCWSTR -> Cwstring
# pPort : LPCWSTR optional -> Cwstring
# fwCapability : PRINTER_DEVICE_CAPABILITIES -> UInt16
# pOutput : LPWSTR optional, out -> Ptr{UInt16}
# pDevMode : DEVMODEW* optional -> Ptr{DEVMODEW}
# 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[[
int32_t DeviceCapabilitiesW(
    const uint16_t* pDevice,
    const uint16_t* pPort,
    uint16_t fwCapability,
    uint16_t* pOutput,
    void* pDevMode);
]]
local winspool.drv = ffi.load("winspool.drv")
-- winspool.drv.DeviceCapabilitiesW(pDevice, pPort, fwCapability, pOutput, pDevMode)
-- pDevice : LPCWSTR
-- pPort : LPCWSTR optional
-- fwCapability : PRINTER_DEVICE_CAPABILITIES
-- pOutput : LPWSTR optional, out
-- pDevMode : DEVMODEW* optional
-- 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('winspool.drv');
const DeviceCapabilitiesW = lib.func('__stdcall', 'DeviceCapabilitiesW', 'int32_t', ['str16', 'str16', 'uint16_t', 'uint16_t *', 'void *']);
// DeviceCapabilitiesW(pDevice, pPort, fwCapability, pOutput, pDevMode)
// pDevice : LPCWSTR -> 'str16'
// pPort : LPCWSTR optional -> 'str16'
// fwCapability : PRINTER_DEVICE_CAPABILITIES -> 'uint16_t'
// pOutput : LPWSTR optional, out -> 'uint16_t *'
// pDevMode : DEVMODEW* optional -> 'void *'
// 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("winspool.drv", {
  DeviceCapabilitiesW: { parameters: ["buffer", "buffer", "u16", "buffer", "pointer"], result: "i32" },
});
// lib.symbols.DeviceCapabilitiesW(pDevice, pPort, fwCapability, pOutput, pDevMode)
// pDevice : LPCWSTR -> "buffer"
// pPort : LPCWSTR optional -> "buffer"
// fwCapability : PRINTER_DEVICE_CAPABILITIES -> "u16"
// pOutput : LPWSTR optional, out -> "buffer"
// pDevMode : DEVMODEW* optional -> "pointer"
// 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
int32_t DeviceCapabilitiesW(
    const uint16_t* pDevice,
    const uint16_t* pPort,
    uint16_t fwCapability,
    uint16_t* pOutput,
    void* pDevMode);
C, "winspool.drv");
// $ffi->DeviceCapabilitiesW(pDevice, pPort, fwCapability, pOutput, pDevMode);
// pDevice : LPCWSTR
// pPort : LPCWSTR optional
// fwCapability : PRINTER_DEVICE_CAPABILITIES
// pOutput : LPWSTR optional, out
// pDevMode : DEVMODEW* optional
// 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 Winspool.drv extends StdCallLibrary {
    Winspool.drv INSTANCE = Native.load("winspool.drv", Winspool.drv.class, W32APIOptions.UNICODE_OPTIONS);
    int DeviceCapabilitiesW(
        WString pDevice,   // LPCWSTR
        WString pPort,   // LPCWSTR optional
        short fwCapability,   // PRINTER_DEVICE_CAPABILITIES
        char[] pOutput,   // LPWSTR optional, out
        Pointer pDevMode   // DEVMODEW* optional
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("winspool.drv")]
lib Libwinspool.drv
  fun DeviceCapabilitiesW = DeviceCapabilitiesW(
    pDevice : UInt16*,   # LPCWSTR
    pPort : UInt16*,   # LPCWSTR optional
    fwCapability : UInt16,   # PRINTER_DEVICE_CAPABILITIES
    pOutput : UInt16*,   # LPWSTR optional, out
    pDevMode : DEVMODEW*   # DEVMODEW* optional
  ) : 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 DeviceCapabilitiesWNative = Int32 Function(Pointer<Utf16>, Pointer<Utf16>, Uint16, Pointer<Utf16>, Pointer<Void>);
typedef DeviceCapabilitiesWDart = int Function(Pointer<Utf16>, Pointer<Utf16>, int, Pointer<Utf16>, Pointer<Void>);
final DeviceCapabilitiesW = DynamicLibrary.open('winspool.drv')
    .lookupFunction<DeviceCapabilitiesWNative, DeviceCapabilitiesWDart>('DeviceCapabilitiesW');
// pDevice : LPCWSTR -> Pointer<Utf16>
// pPort : LPCWSTR optional -> Pointer<Utf16>
// fwCapability : PRINTER_DEVICE_CAPABILITIES -> Uint16
// pOutput : LPWSTR optional, out -> Pointer<Utf16>
// pDevMode : DEVMODEW* optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DeviceCapabilitiesW(
  pDevice: PWideChar;   // LPCWSTR
  pPort: PWideChar;   // LPCWSTR optional
  fwCapability: Word;   // PRINTER_DEVICE_CAPABILITIES
  pOutput: PWideChar;   // LPWSTR optional, out
  pDevMode: Pointer   // DEVMODEW* optional
): Integer; stdcall;
  external 'winspool.drv' name 'DeviceCapabilitiesW';

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

foreign import stdcall safe "DeviceCapabilitiesW"
  c_DeviceCapabilitiesW :: CWString -> CWString -> Word16 -> CWString -> Ptr () -> IO Int32
-- pDevice : LPCWSTR -> CWString
-- pPort : LPCWSTR optional -> CWString
-- fwCapability : PRINTER_DEVICE_CAPABILITIES -> Word16
-- pOutput : LPWSTR optional, out -> CWString
-- pDevMode : DEVMODEW* optional -> Ptr ()
-- 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 devicecapabilitiesw =
  foreign "DeviceCapabilitiesW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> uint16_t @-> (ptr uint16_t) @-> (ptr void) @-> returning int32_t)
(* pDevice : LPCWSTR -> (ptr uint16_t) *)
(* pPort : LPCWSTR optional -> (ptr uint16_t) *)
(* fwCapability : PRINTER_DEVICE_CAPABILITIES -> uint16_t *)
(* pOutput : LPWSTR optional, out -> (ptr uint16_t) *)
(* pDevMode : DEVMODEW* optional -> (ptr void) *)
(* 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 winspool.drv (t "winspool.drv"))
(cffi:use-foreign-library winspool.drv)

(cffi:defcfun ("DeviceCapabilitiesW" device-capabilities-w :convention :stdcall) :int32
  (p-device (:string :encoding :utf-16le))   ; LPCWSTR
  (p-port (:string :encoding :utf-16le))   ; LPCWSTR optional
  (fw-capability :uint16)   ; PRINTER_DEVICE_CAPABILITIES
  (p-output :pointer)   ; LPWSTR optional, out
  (p-dev-mode :pointer))   ; DEVMODEW* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DeviceCapabilitiesW = Win32::API::More->new('winspool.drv',
    'int DeviceCapabilitiesW(LPCWSTR pDevice, LPCWSTR pPort, WORD fwCapability, LPWSTR pOutput, LPVOID pDevMode)');
# my $ret = $DeviceCapabilitiesW->Call($pDevice, $pPort, $fwCapability, $pOutput, $pDevMode);
# pDevice : LPCWSTR -> LPCWSTR
# pPort : LPCWSTR optional -> LPCWSTR
# fwCapability : PRINTER_DEVICE_CAPABILITIES -> WORD
# pOutput : LPWSTR optional, out -> LPWSTR
# pDevMode : DEVMODEW* optional -> LPVOID
# 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。