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EnumPrinterDataA

関数

プリンタの構成データ値を順に列挙する(ANSI版)。

DLLwinspool.drv文字セットANSI (-A)呼出規約winapi

シグネチャ

// winspool.drv  (ANSI / -A)
#include <windows.h>

DWORD EnumPrinterDataA(
    PRINTER_HANDLE hPrinter,
    DWORD dwIndex,
    LPSTR pValueName,
    DWORD cbValueName,
    DWORD* pcbValueName,
    DWORD* pType,   // optional
    BYTE* pData,   // optional
    DWORD cbData,
    DWORD* pcbData   // optional
);

パラメーター

名前	型	方向	説明
hPrinter	PRINTER_HANDLE	in	設定値を列挙する対象プリンターのハンドル。
dwIndex	DWORD	in	列挙する値の0始まりのインデックス。順に増やして呼び出す。
pValueName	LPSTR	out	値の名前を受け取るバッファへのポインタ。
cbValueName	DWORD	in	pValueNameバッファのサイズ(バイト単位)。
pcbValueName	DWORD*	out	実際の値名サイズを受け取る変数へのポインタ。
pType	DWORD*	outoptional	値のデータ型を受け取る変数へのポインタ。NULL可。
pData	BYTE*	outoptional	値データを受け取るバッファへのポインタ。
cbData	DWORD	in	pDataバッファのサイズ(バイト単位)。
pcbData	DWORD*	outoptional	実際の値データサイズを受け取る変数へのポインタ。

戻り値の型: DWORD

各言語での呼び出し定義

// winspool.drv  (ANSI / -A)
#include <windows.h>

DWORD EnumPrinterDataA(
    PRINTER_HANDLE hPrinter,
    DWORD dwIndex,
    LPSTR pValueName,
    DWORD cbValueName,
    DWORD* pcbValueName,
    DWORD* pType,   // optional
    BYTE* pData,   // optional
    DWORD cbData,
    DWORD* pcbData   // optional
);

[DllImport("winspool.drv", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern uint EnumPrinterDataA(
    PRINTER_HANDLE hPrinter,   // PRINTER_HANDLE
    uint dwIndex,   // DWORD
    [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder pValueName,   // LPSTR out
    uint cbValueName,   // DWORD
    out uint pcbValueName,   // DWORD* out
    IntPtr pType,   // DWORD* optional, out
    IntPtr pData,   // BYTE* optional, out
    uint cbData,   // DWORD
    IntPtr pcbData   // DWORD* optional, out
);

<DllImport("winspool.drv", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function EnumPrinterDataA(
    hPrinter As PRINTER_HANDLE,   ' PRINTER_HANDLE
    dwIndex As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> pValueName As System.Text.StringBuilder,   ' LPSTR out
    cbValueName As UInteger,   ' DWORD
    <Out> ByRef pcbValueName As UInteger,   ' DWORD* out
    pType As IntPtr,   ' DWORD* optional, out
    pData As IntPtr,   ' BYTE* optional, out
    cbData As UInteger,   ' DWORD
    pcbData As IntPtr   ' DWORD* optional, out
) As UInteger
End Function

' hPrinter : PRINTER_HANDLE
' dwIndex : DWORD
' pValueName : LPSTR out
' cbValueName : DWORD
' pcbValueName : DWORD* out
' pType : DWORD* optional, out
' pData : BYTE* optional, out
' cbData : DWORD
' pcbData : DWORD* optional, out
Declare PtrSafe Function EnumPrinterDataA Lib "winspool.drv" ( _
    ByVal hPrinter As LongPtr, _
    ByVal dwIndex As Long, _
    ByVal pValueName As String, _
    ByVal cbValueName As Long, _
    ByRef pcbValueName As Long, _
    ByVal pType As LongPtr, _
    ByVal pData As LongPtr, _
    ByVal cbData As Long, _
    ByVal pcbData 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

EnumPrinterDataA = ctypes.windll.LoadLibrary("winspool.drv").EnumPrinterDataA
EnumPrinterDataA.restype = wintypes.DWORD
EnumPrinterDataA.argtypes = [
    PRINTER_HANDLE,  # hPrinter : PRINTER_HANDLE
    wintypes.DWORD,  # dwIndex : DWORD
    wintypes.LPSTR,  # pValueName : LPSTR out
    wintypes.DWORD,  # cbValueName : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcbValueName : DWORD* out
    ctypes.POINTER(wintypes.DWORD),  # pType : DWORD* optional, out
    ctypes.POINTER(ctypes.c_ubyte),  # pData : BYTE* optional, out
    wintypes.DWORD,  # cbData : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pcbData : DWORD* optional, out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
EnumPrinterDataA = Fiddle::Function.new(
  lib['EnumPrinterDataA'],
  [
    Fiddle::TYPE_VOIDP,  # hPrinter : PRINTER_HANDLE
    -Fiddle::TYPE_INT,  # dwIndex : DWORD
    Fiddle::TYPE_VOIDP,  # pValueName : LPSTR out
    -Fiddle::TYPE_INT,  # cbValueName : DWORD
    Fiddle::TYPE_VOIDP,  # pcbValueName : DWORD* out
    Fiddle::TYPE_VOIDP,  # pType : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # pData : BYTE* optional, out
    -Fiddle::TYPE_INT,  # cbData : DWORD
    Fiddle::TYPE_VOIDP,  # pcbData : DWORD* optional, out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "winspool.drv")]
extern "system" {
    fn EnumPrinterDataA(
        hPrinter: PRINTER_HANDLE,  // PRINTER_HANDLE
        dwIndex: u32,  // DWORD
        pValueName: *mut u8,  // LPSTR out
        cbValueName: u32,  // DWORD
        pcbValueName: *mut u32,  // DWORD* out
        pType: *mut u32,  // DWORD* optional, out
        pData: *mut u8,  // BYTE* optional, out
        cbData: u32,  // DWORD
        pcbData: *mut u32  // DWORD* optional, out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("winspool.drv", CharSet = CharSet.Ansi)]
public static extern uint EnumPrinterDataA(PRINTER_HANDLE hPrinter, uint dwIndex, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder pValueName, uint cbValueName, out uint pcbValueName, IntPtr pType, IntPtr pData, uint cbData, IntPtr pcbData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_EnumPrinterDataA' -Namespace Win32 -PassThru
# $api::EnumPrinterDataA(hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData)

#uselib "winspool.drv"
#func global EnumPrinterDataA "EnumPrinterDataA" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; EnumPrinterDataA hPrinter, dwIndex, varptr(pValueName), cbValueName, varptr(pcbValueName), varptr(pType), varptr(pData), cbData, varptr(pcbData)   ; 戻り値は stat
; hPrinter : PRINTER_HANDLE -> "sptr"
; dwIndex : DWORD -> "sptr"
; pValueName : LPSTR out -> "sptr"
; cbValueName : DWORD -> "sptr"
; pcbValueName : DWORD* out -> "sptr"
; pType : DWORD* optional, out -> "sptr"
; pData : BYTE* optional, out -> "sptr"
; cbData : DWORD -> "sptr"
; pcbData : DWORD* optional, out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 EnumPrinterDataA "EnumPrinterDataA" int, int, var, int, var, var, var, int, var
; res = EnumPrinterDataA(hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData)
; hPrinter : PRINTER_HANDLE -> "int"
; dwIndex : DWORD -> "int"
; pValueName : LPSTR out -> "var"
; cbValueName : DWORD -> "int"
; pcbValueName : DWORD* out -> "var"
; pType : DWORD* optional, out -> "var"
; pData : BYTE* optional, out -> "var"
; cbData : DWORD -> "int"
; pcbData : DWORD* optional, out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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。#uselib "winspool.drv"
#cfunc global EnumPrinterDataA "EnumPrinterDataA" int, int, sptr, int, sptr, sptr, sptr, int, sptr
; res = EnumPrinterDataA(hPrinter, dwIndex, varptr(pValueName), cbValueName, varptr(pcbValueName), varptr(pType), varptr(pData), cbData, varptr(pcbData))
; hPrinter : PRINTER_HANDLE -> "int"
; dwIndex : DWORD -> "int"
; pValueName : LPSTR out -> "sptr"
; cbValueName : DWORD -> "int"
; pcbValueName : DWORD* out -> "sptr"
; pType : DWORD* optional, out -> "sptr"
; pData : BYTE* optional, out -> "sptr"
; cbData : DWORD -> "int"
; pcbData : DWORD* optional, out -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; DWORD EnumPrinterDataA(PRINTER_HANDLE hPrinter, DWORD dwIndex, LPSTR pValueName, DWORD cbValueName, DWORD* pcbValueName, DWORD* pType, BYTE* pData, DWORD cbData, DWORD* pcbData)
#uselib "winspool.drv"
#cfunc global EnumPrinterDataA "EnumPrinterDataA" int, int, var, int, var, var, var, int, var
; res = EnumPrinterDataA(hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData)
; hPrinter : PRINTER_HANDLE -> "int"
; dwIndex : DWORD -> "int"
; pValueName : LPSTR out -> "var"
; cbValueName : DWORD -> "int"
; pcbValueName : DWORD* out -> "var"
; pType : DWORD* optional, out -> "var"
; pData : BYTE* optional, out -> "var"
; cbData : DWORD -> "int"
; pcbData : DWORD* optional, out -> "var"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 EnumPrinterDataA(PRINTER_HANDLE hPrinter, DWORD dwIndex, LPSTR pValueName, DWORD cbValueName, DWORD* pcbValueName, DWORD* pType, BYTE* pData, DWORD cbData, DWORD* pcbData)
#uselib "winspool.drv"
#cfunc global EnumPrinterDataA "EnumPrinterDataA" int, int, intptr, int, intptr, intptr, intptr, int, intptr
; res = EnumPrinterDataA(hPrinter, dwIndex, varptr(pValueName), cbValueName, varptr(pcbValueName), varptr(pType), varptr(pData), cbData, varptr(pcbData))
; hPrinter : PRINTER_HANDLE -> "int"
; dwIndex : DWORD -> "int"
; pValueName : LPSTR out -> "intptr"
; cbValueName : DWORD -> "int"
; pcbValueName : DWORD* out -> "intptr"
; pType : DWORD* optional, out -> "intptr"
; pData : BYTE* optional, out -> "intptr"
; cbData : DWORD -> "int"
; pcbData : DWORD* optional, out -> "intptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procEnumPrinterDataA = winspool_drv.NewProc("EnumPrinterDataA")
)

// hPrinter (PRINTER_HANDLE), dwIndex (DWORD), pValueName (LPSTR out), cbValueName (DWORD), pcbValueName (DWORD* out), pType (DWORD* optional, out), pData (BYTE* optional, out), cbData (DWORD), pcbData (DWORD* optional, out)
r1, _, err := procEnumPrinterDataA.Call(
	uintptr(hPrinter),
	uintptr(dwIndex),
	uintptr(pValueName),
	uintptr(cbValueName),
	uintptr(pcbValueName),
	uintptr(pType),
	uintptr(pData),
	uintptr(cbData),
	uintptr(pcbData),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function EnumPrinterDataA(
  hPrinter: PRINTER_HANDLE;   // PRINTER_HANDLE
  dwIndex: DWORD;   // DWORD
  pValueName: PAnsiChar;   // LPSTR out
  cbValueName: DWORD;   // DWORD
  pcbValueName: Pointer;   // DWORD* out
  pType: Pointer;   // DWORD* optional, out
  pData: Pointer;   // BYTE* optional, out
  cbData: DWORD;   // DWORD
  pcbData: Pointer   // DWORD* optional, out
): DWORD; stdcall;
  external 'winspool.drv' name 'EnumPrinterDataA';

result := DllCall("winspool.drv\EnumPrinterDataA"
    , "Ptr", hPrinter   ; PRINTER_HANDLE
    , "UInt", dwIndex   ; DWORD
    , "Ptr", pValueName   ; LPSTR out
    , "UInt", cbValueName   ; DWORD
    , "Ptr", pcbValueName   ; DWORD* out
    , "Ptr", pType   ; DWORD* optional, out
    , "Ptr", pData   ; BYTE* optional, out
    , "UInt", cbData   ; DWORD
    , "Ptr", pcbData   ; DWORD* optional, out
    , "UInt")   ; return: DWORD

●EnumPrinterDataA(hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData) = DLL("winspool.drv", "dword EnumPrinterDataA(void*, dword, char*, dword, void*, void*, void*, dword, void*)")
# 呼び出し: EnumPrinterDataA(hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData)
# hPrinter : PRINTER_HANDLE -> "void*"
# dwIndex : DWORD -> "dword"
# pValueName : LPSTR out -> "char*"
# cbValueName : DWORD -> "dword"
# pcbValueName : DWORD* out -> "void*"
# pType : DWORD* optional, out -> "void*"
# pData : BYTE* optional, out -> "void*"
# cbData : DWORD -> "dword"
# pcbData : 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)。

const std = @import("std");

extern "winspool.drv" fn EnumPrinterDataA(
    hPrinter: PRINTER_HANDLE, // PRINTER_HANDLE
    dwIndex: u32, // DWORD
    pValueName: [*c]u8, // LPSTR out
    cbValueName: u32, // DWORD
    pcbValueName: [*c]u32, // DWORD* out
    pType: [*c]u32, // DWORD* optional, out
    pData: [*c]u8, // BYTE* optional, out
    cbData: u32, // DWORD
    pcbData: [*c]u32 // DWORD* optional, out
) callconv(std.os.windows.WINAPI) u32;

proc EnumPrinterDataA(
    hPrinter: PRINTER_HANDLE,  # PRINTER_HANDLE
    dwIndex: uint32,  # DWORD
    pValueName: ptr char,  # LPSTR out
    cbValueName: uint32,  # DWORD
    pcbValueName: ptr uint32,  # DWORD* out
    pType: ptr uint32,  # DWORD* optional, out
    pData: ptr uint8,  # BYTE* optional, out
    cbData: uint32,  # DWORD
    pcbData: ptr uint32  # DWORD* optional, out
): uint32 {.importc: "EnumPrinterDataA", stdcall, dynlib: "winspool.drv".}

pragma(lib, "winspool.drv");
extern(Windows)
uint EnumPrinterDataA(
    PRINTER_HANDLE hPrinter,   // PRINTER_HANDLE
    uint dwIndex,   // DWORD
    char* pValueName,   // LPSTR out
    uint cbValueName,   // DWORD
    uint* pcbValueName,   // DWORD* out
    uint* pType,   // DWORD* optional, out
    ubyte* pData,   // BYTE* optional, out
    uint cbData,   // DWORD
    uint* pcbData   // DWORD* optional, out
);

ccall((:EnumPrinterDataA, "winspool.drv"), stdcall, UInt32,
      (PRINTER_HANDLE, UInt32, Ptr{UInt8}, UInt32, Ptr{UInt32}, Ptr{UInt32}, Ptr{UInt8}, UInt32, Ptr{UInt32}),
      hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData)
# hPrinter : PRINTER_HANDLE -> PRINTER_HANDLE
# dwIndex : DWORD -> UInt32
# pValueName : LPSTR out -> Ptr{UInt8}
# cbValueName : DWORD -> UInt32
# pcbValueName : DWORD* out -> Ptr{UInt32}
# pType : DWORD* optional, out -> Ptr{UInt32}
# pData : BYTE* optional, out -> Ptr{UInt8}
# cbData : DWORD -> UInt32
# pcbData : DWORD* optional, out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t EnumPrinterDataA(
    PRINTER_HANDLE hPrinter,
    uint32_t dwIndex,
    char* pValueName,
    uint32_t cbValueName,
    uint32_t* pcbValueName,
    uint32_t* pType,
    uint8_t* pData,
    uint32_t cbData,
    uint32_t* pcbData);
]]
local winspool.drv = ffi.load("winspool.drv")
-- winspool.drv.EnumPrinterDataA(hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData)
-- hPrinter : PRINTER_HANDLE
-- dwIndex : DWORD
-- pValueName : LPSTR out
-- cbValueName : DWORD
-- pcbValueName : DWORD* out
-- pType : DWORD* optional, out
-- pData : BYTE* optional, out
-- cbData : DWORD
-- pcbData : DWORD* optional, out
-- 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 EnumPrinterDataA = lib.func('__stdcall', 'EnumPrinterDataA', 'uint32_t', ['PRINTER_HANDLE', 'uint32_t', 'char *', 'uint32_t', 'uint32_t *', 'uint32_t *', 'uint8_t *', 'uint32_t', 'uint32_t *']);
// EnumPrinterDataA(hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData)
// hPrinter : PRINTER_HANDLE -> 'PRINTER_HANDLE'
// dwIndex : DWORD -> 'uint32_t'
// pValueName : LPSTR out -> 'char *'
// cbValueName : DWORD -> 'uint32_t'
// pcbValueName : DWORD* out -> 'uint32_t *'
// pType : DWORD* optional, out -> 'uint32_t *'
// pData : BYTE* optional, out -> 'uint8_t *'
// cbData : DWORD -> 'uint32_t'
// pcbData : DWORD* optional, out -> '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", {
  EnumPrinterDataA: { parameters: ["buffer", "u32", "buffer", "u32", "pointer", "pointer", "pointer", "u32", "pointer"], result: "u32" },
});
// lib.symbols.EnumPrinterDataA(hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData)
// hPrinter : PRINTER_HANDLE -> "buffer"
// dwIndex : DWORD -> "u32"
// pValueName : LPSTR out -> "buffer"
// cbValueName : DWORD -> "u32"
// pcbValueName : DWORD* out -> "pointer"
// pType : DWORD* optional, out -> "pointer"
// pData : BYTE* optional, out -> "pointer"
// cbData : DWORD -> "u32"
// pcbData : DWORD* optional, out -> "pointer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t EnumPrinterDataA(
    PRINTER_HANDLE hPrinter,
    uint32_t dwIndex,
    char* pValueName,
    uint32_t cbValueName,
    uint32_t* pcbValueName,
    uint32_t* pType,
    uint8_t* pData,
    uint32_t cbData,
    uint32_t* pcbData);
C, "winspool.drv");
// $ffi->EnumPrinterDataA(hPrinter, dwIndex, pValueName, cbValueName, pcbValueName, pType, pData, cbData, pcbData);
// hPrinter : PRINTER_HANDLE
// dwIndex : DWORD
// pValueName : LPSTR out
// cbValueName : DWORD
// pcbValueName : DWORD* out
// pType : DWORD* optional, out
// pData : BYTE* optional, out
// cbData : DWORD
// pcbData : DWORD* optional, out
// 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.ASCII_OPTIONS);
    int EnumPrinterDataA(
        PRINTER_HANDLE /* extends Structure (by value) */ hPrinter,   // PRINTER_HANDLE
        int dwIndex,   // DWORD
        byte[] pValueName,   // LPSTR out
        int cbValueName,   // DWORD
        IntByReference pcbValueName,   // DWORD* out
        IntByReference pType,   // DWORD* optional, out
        byte[] pData,   // BYTE* optional, out
        int cbData,   // DWORD
        IntByReference pcbData   // DWORD* optional, out
    );
}

@[Link("winspool.drv")]
lib Libwinspool.drv
  fun EnumPrinterDataA = EnumPrinterDataA(
    hPrinter : PRINTER_HANDLE,   # PRINTER_HANDLE
    dwIndex : UInt32,   # DWORD
    pValueName : UInt8*,   # LPSTR out
    cbValueName : UInt32,   # DWORD
    pcbValueName : UInt32*,   # DWORD* out
    pType : UInt32*,   # DWORD* optional, out
    pData : UInt8*,   # BYTE* optional, out
    cbData : UInt32,   # DWORD
    pcbData : UInt32*   # DWORD* optional, out
  ) : 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 EnumPrinterDataANative = Uint32 Function(PRINTER_HANDLE, Uint32, Pointer<Utf8>, Uint32, Pointer<Uint32>, Pointer<Uint32>, Pointer<Uint8>, Uint32, Pointer<Uint32>);
typedef EnumPrinterDataADart = int Function(int, int, Pointer<Utf8>, int, Pointer<Uint32>, Pointer<Uint32>, Pointer<Uint8>, int, Pointer<Uint32>);
final EnumPrinterDataA = DynamicLibrary.open('winspool.drv')
    .lookupFunction<EnumPrinterDataANative, EnumPrinterDataADart>('EnumPrinterDataA');
// hPrinter : PRINTER_HANDLE -> PRINTER_HANDLE
// dwIndex : DWORD -> Uint32
// pValueName : LPSTR out -> Pointer<Utf8>
// cbValueName : DWORD -> Uint32
// pcbValueName : DWORD* out -> Pointer<Uint32>
// pType : DWORD* optional, out -> Pointer<Uint32>
// pData : BYTE* optional, out -> Pointer<Uint8>
// cbData : DWORD -> Uint32
// pcbData : DWORD* optional, out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function EnumPrinterDataA(
  hPrinter: PRINTER_HANDLE;   // PRINTER_HANDLE
  dwIndex: DWORD;   // DWORD
  pValueName: PAnsiChar;   // LPSTR out
  cbValueName: DWORD;   // DWORD
  pcbValueName: Pointer;   // DWORD* out
  pType: Pointer;   // DWORD* optional, out
  pData: Pointer;   // BYTE* optional, out
  cbData: DWORD;   // DWORD
  pcbData: Pointer   // DWORD* optional, out
): DWORD; stdcall;
  external 'winspool.drv' name 'EnumPrinterDataA';

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

foreign import stdcall safe "EnumPrinterDataA"
  c_EnumPrinterDataA :: PRINTER_HANDLE -> Word32 -> CString -> Word32 -> Ptr Word32 -> Ptr Word32 -> Ptr Word8 -> Word32 -> Ptr Word32 -> IO Word32
-- hPrinter : PRINTER_HANDLE -> PRINTER_HANDLE
-- dwIndex : DWORD -> Word32
-- pValueName : LPSTR out -> CString
-- cbValueName : DWORD -> Word32
-- pcbValueName : DWORD* out -> Ptr Word32
-- pType : DWORD* optional, out -> Ptr Word32
-- pData : BYTE* optional, out -> Ptr Word8
-- cbData : DWORD -> Word32
-- pcbData : DWORD* optional, out -> Ptr 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。
-- ※値渡し構造体は GHC FFI で直接渡せません。Ptr で渡すラッパ(C側)経由にしてください。

open Ctypes
open Foreign

let enumprinterdataa =
  foreign "EnumPrinterDataA"
    (PRINTER_HANDLE @-> uint32_t @-> string @-> uint32_t @-> (ptr uint32_t) @-> (ptr uint32_t) @-> (ptr uint8_t) @-> uint32_t @-> (ptr uint32_t) @-> returning uint32_t)
(* hPrinter : PRINTER_HANDLE -> PRINTER_HANDLE *)
(* dwIndex : DWORD -> uint32_t *)
(* pValueName : LPSTR out -> string *)
(* cbValueName : DWORD -> uint32_t *)
(* pcbValueName : DWORD* out -> (ptr uint32_t) *)
(* pType : DWORD* optional, out -> (ptr uint32_t) *)
(* pData : BYTE* optional, out -> (ptr uint8_t) *)
(* cbData : DWORD -> uint32_t *)
(* pcbData : DWORD* optional, out -> (ptr 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 ("EnumPrinterDataA" enum-printer-data-a :convention :stdcall) :uint32
  (h-printer (:struct printer-handle))   ; PRINTER_HANDLE
  (dw-index :uint32)   ; DWORD
  (p-value-name :pointer)   ; LPSTR out
  (cb-value-name :uint32)   ; DWORD
  (pcb-value-name :pointer)   ; DWORD* out
  (p-type :pointer)   ; DWORD* optional, out
  (p-data :pointer)   ; BYTE* optional, out
  (cb-data :uint32)   ; DWORD
  (pcb-data :pointer))   ; DWORD* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $EnumPrinterDataA = Win32::API::More->new('winspool.drv',
    'DWORD EnumPrinterDataA(LPVOID hPrinter, DWORD dwIndex, LPSTR pValueName, DWORD cbValueName, LPVOID pcbValueName, LPVOID pType, LPVOID pData, DWORD cbData, LPVOID pcbData)');
# my $ret = $EnumPrinterDataA->Call($hPrinter, $dwIndex, $pValueName, $cbValueName, $pcbValueName, $pType, $pData, $cbData, $pcbData);
# hPrinter : PRINTER_HANDLE -> LPVOID
# dwIndex : DWORD -> DWORD
# pValueName : LPSTR out -> LPSTR
# cbValueName : DWORD -> DWORD
# pcbValueName : DWORD* out -> LPVOID
# pType : DWORD* optional, out -> LPVOID
# pData : BYTE* optional, out -> LPVOID
# cbData : DWORD -> DWORD
# pcbData : DWORD* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

EnumPrinterDataA

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