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ExtDeviceMode

関数
プリンタのデバイスモード設定を取得・編集する。
DLLwinspool.drv呼出規約winapi

シグネチャ

// winspool.drv
#include <windows.h>

INT ExtDeviceMode(
    HWND hWnd,   // optional
    HANDLE hInst,   // optional
    DEVMODEA* pDevModeOutput,   // optional
    LPSTR pDeviceName,   // optional
    LPSTR pPort,   // optional
    DEVMODEA* pDevModeInput,   // optional
    LPSTR pProfile,   // optional
    DWORD fMode
);

パラメーター

名前型方向説明
hWndHWNDinoptionalダイアログ表示時の親ウィンドウのハンドル。
hInstHANDLEinoptionalプリンタードライバーモジュールのインスタンスハンドル。
pDevModeOutputDEVMODEA*inoutoptional更新後のDEVMODEを受け取るバッファへのポインタ。
pDeviceNameLPSTRinoptional対象デバイス名(プリンター名)を指すポインタ。
pPortLPSTRinoptionalプリンターが接続されているポート名を指すポインタ。
pDevModeInputDEVMODEA*inoptional初期値として渡すDEVMODE構造体へのポインタ。
pProfileLPSTRinoptional環境設定プロファイル名を指すポインタ。通常はNULLを指定する。
fModeDWORDin動作モードを示すフラグ。DM_OUT_BUFFER、DM_IN_PROMPT等を組み合わせる。

戻り値の型: INT

各言語での呼び出し定義

// winspool.drv
#include <windows.h>

INT ExtDeviceMode(
    HWND hWnd,   // optional
    HANDLE hInst,   // optional
    DEVMODEA* pDevModeOutput,   // optional
    LPSTR pDeviceName,   // optional
    LPSTR pPort,   // optional
    DEVMODEA* pDevModeInput,   // optional
    LPSTR pProfile,   // optional
    DWORD fMode
);
[DllImport("winspool.drv", ExactSpelling = true)]
static extern int ExtDeviceMode(
    IntPtr hWnd,   // HWND optional
    IntPtr hInst,   // HANDLE optional
    IntPtr pDevModeOutput,   // DEVMODEA* optional, in/out
    [MarshalAs(UnmanagedType.LPStr)] string pDeviceName,   // LPSTR optional
    [MarshalAs(UnmanagedType.LPStr)] string pPort,   // LPSTR optional
    IntPtr pDevModeInput,   // DEVMODEA* optional
    [MarshalAs(UnmanagedType.LPStr)] string pProfile,   // LPSTR optional
    uint fMode   // DWORD
);
<DllImport("winspool.drv", ExactSpelling:=True)>
Public Shared Function ExtDeviceMode(
    hWnd As IntPtr,   ' HWND optional
    hInst As IntPtr,   ' HANDLE optional
    pDevModeOutput As IntPtr,   ' DEVMODEA* optional, in/out
    <MarshalAs(UnmanagedType.LPStr)> pDeviceName As String,   ' LPSTR optional
    <MarshalAs(UnmanagedType.LPStr)> pPort As String,   ' LPSTR optional
    pDevModeInput As IntPtr,   ' DEVMODEA* optional
    <MarshalAs(UnmanagedType.LPStr)> pProfile As String,   ' LPSTR optional
    fMode As UInteger   ' DWORD
) As Integer
End Function
' hWnd : HWND optional
' hInst : HANDLE optional
' pDevModeOutput : DEVMODEA* optional, in/out
' pDeviceName : LPSTR optional
' pPort : LPSTR optional
' pDevModeInput : DEVMODEA* optional
' pProfile : LPSTR optional
' fMode : DWORD
Declare PtrSafe Function ExtDeviceMode Lib "winspool.drv" ( _
    ByVal hWnd As LongPtr, _
    ByVal hInst As LongPtr, _
    ByVal pDevModeOutput As LongPtr, _
    ByVal pDeviceName As String, _
    ByVal pPort As String, _
    ByVal pDevModeInput As LongPtr, _
    ByVal pProfile As String, _
    ByVal fMode As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

ExtDeviceMode = ctypes.windll.LoadLibrary("winspool.drv").ExtDeviceMode
ExtDeviceMode.restype = ctypes.c_int
ExtDeviceMode.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND optional
    wintypes.HANDLE,  # hInst : HANDLE optional
    ctypes.c_void_p,  # pDevModeOutput : DEVMODEA* optional, in/out
    wintypes.LPCSTR,  # pDeviceName : LPSTR optional
    wintypes.LPCSTR,  # pPort : LPSTR optional
    ctypes.c_void_p,  # pDevModeInput : DEVMODEA* optional
    wintypes.LPCSTR,  # pProfile : LPSTR optional
    wintypes.DWORD,  # fMode : DWORD
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
ExtDeviceMode = Fiddle::Function.new(
  lib['ExtDeviceMode'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND optional
    Fiddle::TYPE_VOIDP,  # hInst : HANDLE optional
    Fiddle::TYPE_VOIDP,  # pDevModeOutput : DEVMODEA* optional, in/out
    Fiddle::TYPE_VOIDP,  # pDeviceName : LPSTR optional
    Fiddle::TYPE_VOIDP,  # pPort : LPSTR optional
    Fiddle::TYPE_VOIDP,  # pDevModeInput : DEVMODEA* optional
    Fiddle::TYPE_VOIDP,  # pProfile : LPSTR optional
    -Fiddle::TYPE_INT,  # fMode : DWORD
  ],
  Fiddle::TYPE_INT)
#[link(name = "winspool.drv")]
extern "system" {
    fn ExtDeviceMode(
        hWnd: *mut core::ffi::c_void,  // HWND optional
        hInst: *mut core::ffi::c_void,  // HANDLE optional
        pDevModeOutput: *mut DEVMODEA,  // DEVMODEA* optional, in/out
        pDeviceName: *mut u8,  // LPSTR optional
        pPort: *mut u8,  // LPSTR optional
        pDevModeInput: *mut DEVMODEA,  // DEVMODEA* optional
        pProfile: *mut u8,  // LPSTR optional
        fMode: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("winspool.drv")]
public static extern int ExtDeviceMode(IntPtr hWnd, IntPtr hInst, IntPtr pDevModeOutput, [MarshalAs(UnmanagedType.LPStr)] string pDeviceName, [MarshalAs(UnmanagedType.LPStr)] string pPort, IntPtr pDevModeInput, [MarshalAs(UnmanagedType.LPStr)] string pProfile, uint fMode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_ExtDeviceMode' -Namespace Win32 -PassThru
# $api::ExtDeviceMode(hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode)
#uselib "winspool.drv"
#func global ExtDeviceMode "ExtDeviceMode" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; ExtDeviceMode hWnd, hInst, varptr(pDevModeOutput), pDeviceName, pPort, varptr(pDevModeInput), pProfile, fMode   ; 戻り値は stat
; hWnd : HWND optional -> "sptr"
; hInst : HANDLE optional -> "sptr"
; pDevModeOutput : DEVMODEA* optional, in/out -> "sptr"
; pDeviceName : LPSTR optional -> "sptr"
; pPort : LPSTR optional -> "sptr"
; pDevModeInput : DEVMODEA* optional -> "sptr"
; pProfile : LPSTR optional -> "sptr"
; fMode : DWORD -> "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。
出力引数: 
#uselib "winspool.drv"
#cfunc global ExtDeviceMode "ExtDeviceMode" sptr, sptr, var, str, str, var, str, int
; res = ExtDeviceMode(hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode)
; hWnd : HWND optional -> "sptr"
; hInst : HANDLE optional -> "sptr"
; pDevModeOutput : DEVMODEA* optional, in/out -> "var"
; pDeviceName : LPSTR optional -> "str"
; pPort : LPSTR optional -> "str"
; pDevModeInput : DEVMODEA* optional -> "var"
; pProfile : LPSTR optional -> "str"
; fMode : DWORD -> "int"
; ※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。
出力引数: 
; INT ExtDeviceMode(HWND hWnd, HANDLE hInst, DEVMODEA* pDevModeOutput, LPSTR pDeviceName, LPSTR pPort, DEVMODEA* pDevModeInput, LPSTR pProfile, DWORD fMode)
#uselib "winspool.drv"
#cfunc global ExtDeviceMode "ExtDeviceMode" intptr, intptr, var, str, str, var, str, int
; res = ExtDeviceMode(hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode)
; hWnd : HWND optional -> "intptr"
; hInst : HANDLE optional -> "intptr"
; pDevModeOutput : DEVMODEA* optional, in/out -> "var"
; pDeviceName : LPSTR optional -> "str"
; pPort : LPSTR optional -> "str"
; pDevModeInput : DEVMODEA* optional -> "var"
; pProfile : LPSTR optional -> "str"
; fMode : DWORD -> "int"
; ※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 (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procExtDeviceMode = winspool_drv.NewProc("ExtDeviceMode")
)

// hWnd (HWND optional), hInst (HANDLE optional), pDevModeOutput (DEVMODEA* optional, in/out), pDeviceName (LPSTR optional), pPort (LPSTR optional), pDevModeInput (DEVMODEA* optional), pProfile (LPSTR optional), fMode (DWORD)
r1, _, err := procExtDeviceMode.Call(
	uintptr(hWnd),
	uintptr(hInst),
	uintptr(pDevModeOutput),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pDeviceName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pPort))),
	uintptr(pDevModeInput),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pProfile))),
	uintptr(fMode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT
function ExtDeviceMode(
  hWnd: THandle;   // HWND optional
  hInst: THandle;   // HANDLE optional
  pDevModeOutput: Pointer;   // DEVMODEA* optional, in/out
  pDeviceName: PAnsiChar;   // LPSTR optional
  pPort: PAnsiChar;   // LPSTR optional
  pDevModeInput: Pointer;   // DEVMODEA* optional
  pProfile: PAnsiChar;   // LPSTR optional
  fMode: DWORD   // DWORD
): Integer; stdcall;
  external 'winspool.drv' name 'ExtDeviceMode';
result := DllCall("winspool.drv\ExtDeviceMode"
    , "Ptr", hWnd   ; HWND optional
    , "Ptr", hInst   ; HANDLE optional
    , "Ptr", pDevModeOutput   ; DEVMODEA* optional, in/out
    , "AStr", pDeviceName   ; LPSTR optional
    , "AStr", pPort   ; LPSTR optional
    , "Ptr", pDevModeInput   ; DEVMODEA* optional
    , "AStr", pProfile   ; LPSTR optional
    , "UInt", fMode   ; DWORD
    , "Int")   ; return: INT
●ExtDeviceMode(hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode) = DLL("winspool.drv", "int ExtDeviceMode(void*, void*, void*, char*, char*, void*, char*, dword)")
# 呼び出し: ExtDeviceMode(hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode)
# hWnd : HWND optional -> "void*"
# hInst : HANDLE optional -> "void*"
# pDevModeOutput : DEVMODEA* optional, in/out -> "void*"
# pDeviceName : LPSTR optional -> "char*"
# pPort : LPSTR optional -> "char*"
# pDevModeInput : DEVMODEA* optional -> "void*"
# pProfile : LPSTR optional -> "char*"
# fMode : 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)。
const std = @import("std");

extern "winspool.drv" fn ExtDeviceMode(
    hWnd: ?*anyopaque, // HWND optional
    hInst: ?*anyopaque, // HANDLE optional
    pDevModeOutput: [*c]DEVMODEA, // DEVMODEA* optional, in/out
    pDeviceName: [*c]const u8, // LPSTR optional
    pPort: [*c]const u8, // LPSTR optional
    pDevModeInput: [*c]DEVMODEA, // DEVMODEA* optional
    pProfile: [*c]const u8, // LPSTR optional
    fMode: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;
proc ExtDeviceMode(
    hWnd: pointer,  # HWND optional
    hInst: pointer,  # HANDLE optional
    pDevModeOutput: ptr DEVMODEA,  # DEVMODEA* optional, in/out
    pDeviceName: cstring,  # LPSTR optional
    pPort: cstring,  # LPSTR optional
    pDevModeInput: ptr DEVMODEA,  # DEVMODEA* optional
    pProfile: cstring,  # LPSTR optional
    fMode: uint32  # DWORD
): int32 {.importc: "ExtDeviceMode", stdcall, dynlib: "winspool.drv".}
pragma(lib, "winspool.drv");
extern(Windows)
int ExtDeviceMode(
    void* hWnd,   // HWND optional
    void* hInst,   // HANDLE optional
    DEVMODEA* pDevModeOutput,   // DEVMODEA* optional, in/out
    const(char)* pDeviceName,   // LPSTR optional
    const(char)* pPort,   // LPSTR optional
    DEVMODEA* pDevModeInput,   // DEVMODEA* optional
    const(char)* pProfile,   // LPSTR optional
    uint fMode   // DWORD
);
ccall((:ExtDeviceMode, "winspool.drv"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{Cvoid}, Ptr{DEVMODEA}, Cstring, Cstring, Ptr{DEVMODEA}, Cstring, UInt32),
      hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode)
# hWnd : HWND optional -> Ptr{Cvoid}
# hInst : HANDLE optional -> Ptr{Cvoid}
# pDevModeOutput : DEVMODEA* optional, in/out -> Ptr{DEVMODEA}
# pDeviceName : LPSTR optional -> Cstring
# pPort : LPSTR optional -> Cstring
# pDevModeInput : DEVMODEA* optional -> Ptr{DEVMODEA}
# pProfile : LPSTR optional -> Cstring
# fMode : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t ExtDeviceMode(
    void* hWnd,
    void* hInst,
    void* pDevModeOutput,
    const char* pDeviceName,
    const char* pPort,
    void* pDevModeInput,
    const char* pProfile,
    uint32_t fMode);
]]
local winspool.drv = ffi.load("winspool.drv")
-- winspool.drv.ExtDeviceMode(hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode)
-- hWnd : HWND optional
-- hInst : HANDLE optional
-- pDevModeOutput : DEVMODEA* optional, in/out
-- pDeviceName : LPSTR optional
-- pPort : LPSTR optional
-- pDevModeInput : DEVMODEA* optional
-- pProfile : LPSTR optional
-- fMode : 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。
const koffi = require('koffi');
const lib = koffi.load('winspool.drv');
const ExtDeviceMode = lib.func('__stdcall', 'ExtDeviceMode', 'int32_t', ['void *', 'void *', 'void *', 'str', 'str', 'void *', 'str', 'uint32_t']);
// ExtDeviceMode(hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode)
// hWnd : HWND optional -> 'void *'
// hInst : HANDLE optional -> 'void *'
// pDevModeOutput : DEVMODEA* optional, in/out -> 'void *'
// pDeviceName : LPSTR optional -> 'str'
// pPort : LPSTR optional -> 'str'
// pDevModeInput : DEVMODEA* optional -> 'void *'
// pProfile : LPSTR optional -> 'str'
// fMode : 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("winspool.drv", {
  ExtDeviceMode: { parameters: ["pointer", "pointer", "pointer", "buffer", "buffer", "pointer", "buffer", "u32"], result: "i32" },
});
// lib.symbols.ExtDeviceMode(hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode)
// hWnd : HWND optional -> "pointer"
// hInst : HANDLE optional -> "pointer"
// pDevModeOutput : DEVMODEA* optional, in/out -> "pointer"
// pDeviceName : LPSTR optional -> "buffer"
// pPort : LPSTR optional -> "buffer"
// pDevModeInput : DEVMODEA* optional -> "pointer"
// pProfile : LPSTR optional -> "buffer"
// fMode : DWORD -> "u32"
// 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 ExtDeviceMode(
    void* hWnd,
    void* hInst,
    void* pDevModeOutput,
    const char* pDeviceName,
    const char* pPort,
    void* pDevModeInput,
    const char* pProfile,
    uint32_t fMode);
C, "winspool.drv");
// $ffi->ExtDeviceMode(hWnd, hInst, pDevModeOutput, pDeviceName, pPort, pDevModeInput, pProfile, fMode);
// hWnd : HWND optional
// hInst : HANDLE optional
// pDevModeOutput : DEVMODEA* optional, in/out
// pDeviceName : LPSTR optional
// pPort : LPSTR optional
// pDevModeInput : DEVMODEA* optional
// pProfile : LPSTR optional
// fMode : 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 Winspool.drv extends StdCallLibrary {
    Winspool.drv INSTANCE = Native.load("winspool.drv", Winspool.drv.class);
    int ExtDeviceMode(
        Pointer hWnd,   // HWND optional
        Pointer hInst,   // HANDLE optional
        Pointer pDevModeOutput,   // DEVMODEA* optional, in/out
        String pDeviceName,   // LPSTR optional
        String pPort,   // LPSTR optional
        Pointer pDevModeInput,   // DEVMODEA* optional
        String pProfile,   // LPSTR optional
        int fMode   // DWORD
    );
}
@[Link("winspool.drv")]
lib Libwinspool.drv
  fun ExtDeviceMode = ExtDeviceMode(
    hWnd : Void*,   # HWND optional
    hInst : Void*,   # HANDLE optional
    pDevModeOutput : DEVMODEA*,   # DEVMODEA* optional, in/out
    pDeviceName : UInt8*,   # LPSTR optional
    pPort : UInt8*,   # LPSTR optional
    pDevModeInput : DEVMODEA*,   # DEVMODEA* optional
    pProfile : UInt8*,   # LPSTR optional
    fMode : UInt32   # DWORD
  ) : 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 ExtDeviceModeNative = Int32 Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Utf8>, Pointer<Utf8>, Pointer<Void>, Pointer<Utf8>, Uint32);
typedef ExtDeviceModeDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Utf8>, Pointer<Utf8>, Pointer<Void>, Pointer<Utf8>, int);
final ExtDeviceMode = DynamicLibrary.open('winspool.drv')
    .lookupFunction<ExtDeviceModeNative, ExtDeviceModeDart>('ExtDeviceMode');
// hWnd : HWND optional -> Pointer<Void>
// hInst : HANDLE optional -> Pointer<Void>
// pDevModeOutput : DEVMODEA* optional, in/out -> Pointer<Void>
// pDeviceName : LPSTR optional -> Pointer<Utf8>
// pPort : LPSTR optional -> Pointer<Utf8>
// pDevModeInput : DEVMODEA* optional -> Pointer<Void>
// pProfile : LPSTR optional -> Pointer<Utf8>
// fMode : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function ExtDeviceMode(
  hWnd: THandle;   // HWND optional
  hInst: THandle;   // HANDLE optional
  pDevModeOutput: Pointer;   // DEVMODEA* optional, in/out
  pDeviceName: PAnsiChar;   // LPSTR optional
  pPort: PAnsiChar;   // LPSTR optional
  pDevModeInput: Pointer;   // DEVMODEA* optional
  pProfile: PAnsiChar;   // LPSTR optional
  fMode: DWORD   // DWORD
): Integer; stdcall;
  external 'winspool.drv' name 'ExtDeviceMode';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "ExtDeviceMode"
  c_ExtDeviceMode :: Ptr () -> Ptr () -> Ptr () -> CString -> CString -> Ptr () -> CString -> Word32 -> IO Int32
-- hWnd : HWND optional -> Ptr ()
-- hInst : HANDLE optional -> Ptr ()
-- pDevModeOutput : DEVMODEA* optional, in/out -> Ptr ()
-- pDeviceName : LPSTR optional -> CString
-- pPort : LPSTR optional -> CString
-- pDevModeInput : DEVMODEA* optional -> Ptr ()
-- pProfile : LPSTR optional -> CString
-- fMode : 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 extdevicemode =
  foreign "ExtDeviceMode"
    ((ptr void) @-> (ptr void) @-> (ptr void) @-> string @-> string @-> (ptr void) @-> string @-> uint32_t @-> returning int32_t)
(* hWnd : HWND optional -> (ptr void) *)
(* hInst : HANDLE optional -> (ptr void) *)
(* pDevModeOutput : DEVMODEA* optional, in/out -> (ptr void) *)
(* pDeviceName : LPSTR optional -> string *)
(* pPort : LPSTR optional -> string *)
(* pDevModeInput : DEVMODEA* optional -> (ptr void) *)
(* pProfile : LPSTR optional -> string *)
(* fMode : 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 winspool.drv (t "winspool.drv"))
(cffi:use-foreign-library winspool.drv)

(cffi:defcfun ("ExtDeviceMode" ext-device-mode :convention :stdcall) :int32
  (h-wnd :pointer)   ; HWND optional
  (h-inst :pointer)   ; HANDLE optional
  (p-dev-mode-output :pointer)   ; DEVMODEA* optional, in/out
  (p-device-name :string)   ; LPSTR optional
  (p-port :string)   ; LPSTR optional
  (p-dev-mode-input :pointer)   ; DEVMODEA* optional
  (p-profile :string)   ; LPSTR optional
  (f-mode :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $ExtDeviceMode = Win32::API::More->new('winspool.drv',
    'int ExtDeviceMode(HANDLE hWnd, HANDLE hInst, LPVOID pDevModeOutput, LPCSTR pDeviceName, LPCSTR pPort, LPVOID pDevModeInput, LPCSTR pProfile, DWORD fMode)');
# my $ret = $ExtDeviceMode->Call($hWnd, $hInst, $pDevModeOutput, $pDeviceName, $pPort, $pDevModeInput, $pProfile, $fMode);
# hWnd : HWND optional -> HANDLE
# hInst : HANDLE optional -> HANDLE
# pDevModeOutput : DEVMODEA* optional, in/out -> LPVOID
# pDeviceName : LPSTR optional -> LPCSTR
# pPort : LPSTR optional -> LPCSTR
# pDevModeInput : DEVMODEA* optional -> LPVOID
# pProfile : LPSTR optional -> LPCSTR
# fMode : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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