GetCorePrinterDriversA

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

HRESULT GetCorePrinterDriversA(
    LPCSTR pszServer,   // optional
    LPCSTR pszEnvironment,   // optional
    LPCSTR pszzCoreDriverDependencies,
    DWORD cCorePrinterDrivers,
    CORE_PRINTER_DRIVERA* pCorePrinterDrivers
);

<DllImport("winspool.drv", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function GetCorePrinterDriversA(
    <MarshalAs(UnmanagedType.LPStr)> pszServer As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> pszEnvironment As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> pszzCoreDriverDependencies As String,   ' LPCSTR
    cCorePrinterDrivers As UInteger,   ' DWORD
    pCorePrinterDrivers As IntPtr   ' CORE_PRINTER_DRIVERA* out
) As Integer
End Function

' pszServer : LPCSTR optional
' pszEnvironment : LPCSTR optional
' pszzCoreDriverDependencies : LPCSTR
' cCorePrinterDrivers : DWORD
' pCorePrinterDrivers : CORE_PRINTER_DRIVERA* out
Declare PtrSafe Function GetCorePrinterDriversA Lib "winspool.drv" ( _
    ByVal pszServer As String, _
    ByVal pszEnvironment As String, _
    ByVal pszzCoreDriverDependencies As String, _
    ByVal cCorePrinterDrivers As Long, _
    ByVal pCorePrinterDrivers 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

GetCorePrinterDriversA = ctypes.windll.LoadLibrary("winspool.drv").GetCorePrinterDriversA
GetCorePrinterDriversA.restype = ctypes.c_int
GetCorePrinterDriversA.argtypes = [
    wintypes.LPCSTR,  # pszServer : LPCSTR optional
    wintypes.LPCSTR,  # pszEnvironment : LPCSTR optional
    wintypes.LPCSTR,  # pszzCoreDriverDependencies : LPCSTR
    wintypes.DWORD,  # cCorePrinterDrivers : DWORD
    ctypes.c_void_p,  # pCorePrinterDrivers : CORE_PRINTER_DRIVERA* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
GetCorePrinterDriversA = Fiddle::Function.new(
  lib['GetCorePrinterDriversA'],
  [
    Fiddle::TYPE_VOIDP,  # pszServer : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pszEnvironment : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pszzCoreDriverDependencies : LPCSTR
    -Fiddle::TYPE_INT,  # cCorePrinterDrivers : DWORD
    Fiddle::TYPE_VOIDP,  # pCorePrinterDrivers : CORE_PRINTER_DRIVERA* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "winspool.drv")]
extern "system" {
    fn GetCorePrinterDriversA(
        pszServer: *const u8,  // LPCSTR optional
        pszEnvironment: *const u8,  // LPCSTR optional
        pszzCoreDriverDependencies: *const u8,  // LPCSTR
        cCorePrinterDrivers: u32,  // DWORD
        pCorePrinterDrivers: *mut CORE_PRINTER_DRIVERA  // CORE_PRINTER_DRIVERA* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("winspool.drv", CharSet = CharSet.Ansi)]
public static extern int GetCorePrinterDriversA([MarshalAs(UnmanagedType.LPStr)] string pszServer, [MarshalAs(UnmanagedType.LPStr)] string pszEnvironment, [MarshalAs(UnmanagedType.LPStr)] string pszzCoreDriverDependencies, uint cCorePrinterDrivers, IntPtr pCorePrinterDrivers);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_GetCorePrinterDriversA' -Namespace Win32 -PassThru
# $api::GetCorePrinterDriversA(pszServer, pszEnvironment, pszzCoreDriverDependencies, cCorePrinterDrivers, pCorePrinterDrivers)

#uselib "winspool.drv"
#func global GetCorePrinterDriversA "GetCorePrinterDriversA" sptr, sptr, sptr, sptr, sptr
; GetCorePrinterDriversA pszServer, pszEnvironment, pszzCoreDriverDependencies, cCorePrinterDrivers, varptr(pCorePrinterDrivers)   ; 戻り値は stat
; pszServer : LPCSTR optional -> "sptr"
; pszEnvironment : LPCSTR optional -> "sptr"
; pszzCoreDriverDependencies : LPCSTR -> "sptr"
; cCorePrinterDrivers : DWORD -> "sptr"
; pCorePrinterDrivers : CORE_PRINTER_DRIVERA* 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。

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procGetCorePrinterDriversA = winspool_drv.NewProc("GetCorePrinterDriversA")
)

// pszServer (LPCSTR optional), pszEnvironment (LPCSTR optional), pszzCoreDriverDependencies (LPCSTR), cCorePrinterDrivers (DWORD), pCorePrinterDrivers (CORE_PRINTER_DRIVERA* out)
r1, _, err := procGetCorePrinterDriversA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszServer))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszEnvironment))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszzCoreDriverDependencies))),
	uintptr(cCorePrinterDrivers),
	uintptr(pCorePrinterDrivers),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetCorePrinterDriversA(
  pszServer: PAnsiChar;   // LPCSTR optional
  pszEnvironment: PAnsiChar;   // LPCSTR optional
  pszzCoreDriverDependencies: PAnsiChar;   // LPCSTR
  cCorePrinterDrivers: DWORD;   // DWORD
  pCorePrinterDrivers: Pointer   // CORE_PRINTER_DRIVERA* out
): Integer; stdcall;
  external 'winspool.drv' name 'GetCorePrinterDriversA';

result := DllCall("winspool.drv\GetCorePrinterDriversA"
    , "AStr", pszServer   ; LPCSTR optional
    , "AStr", pszEnvironment   ; LPCSTR optional
    , "AStr", pszzCoreDriverDependencies   ; LPCSTR
    , "UInt", cCorePrinterDrivers   ; DWORD
    , "Ptr", pCorePrinterDrivers   ; CORE_PRINTER_DRIVERA* out
    , "Int")   ; return: HRESULT

●GetCorePrinterDriversA(pszServer, pszEnvironment, pszzCoreDriverDependencies, cCorePrinterDrivers, pCorePrinterDrivers) = DLL("winspool.drv", "int GetCorePrinterDriversA(char*, char*, char*, dword, void*)")
# 呼び出し: GetCorePrinterDriversA(pszServer, pszEnvironment, pszzCoreDriverDependencies, cCorePrinterDrivers, pCorePrinterDrivers)
# pszServer : LPCSTR optional -> "char*"
# pszEnvironment : LPCSTR optional -> "char*"
# pszzCoreDriverDependencies : LPCSTR -> "char*"
# cCorePrinterDrivers : DWORD -> "dword"
# pCorePrinterDrivers : CORE_PRINTER_DRIVERA* 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 GetCorePrinterDriversA(
    pszServer: [*c]const u8, // LPCSTR optional
    pszEnvironment: [*c]const u8, // LPCSTR optional
    pszzCoreDriverDependencies: [*c]const u8, // LPCSTR
    cCorePrinterDrivers: u32, // DWORD
    pCorePrinterDrivers: [*c]CORE_PRINTER_DRIVERA // CORE_PRINTER_DRIVERA* out
) callconv(std.os.windows.WINAPI) i32;

proc GetCorePrinterDriversA(
    pszServer: cstring,  # LPCSTR optional
    pszEnvironment: cstring,  # LPCSTR optional
    pszzCoreDriverDependencies: cstring,  # LPCSTR
    cCorePrinterDrivers: uint32,  # DWORD
    pCorePrinterDrivers: ptr CORE_PRINTER_DRIVERA  # CORE_PRINTER_DRIVERA* out
): int32 {.importc: "GetCorePrinterDriversA", stdcall, dynlib: "winspool.drv".}

pragma(lib, "winspool.drv");
extern(Windows)
int GetCorePrinterDriversA(
    const(char)* pszServer,   // LPCSTR optional
    const(char)* pszEnvironment,   // LPCSTR optional
    const(char)* pszzCoreDriverDependencies,   // LPCSTR
    uint cCorePrinterDrivers,   // DWORD
    CORE_PRINTER_DRIVERA* pCorePrinterDrivers   // CORE_PRINTER_DRIVERA* out
);

ccall((:GetCorePrinterDriversA, "winspool.drv"), stdcall, Int32,
      (Cstring, Cstring, Cstring, UInt32, Ptr{CORE_PRINTER_DRIVERA}),
      pszServer, pszEnvironment, pszzCoreDriverDependencies, cCorePrinterDrivers, pCorePrinterDrivers)
# pszServer : LPCSTR optional -> Cstring
# pszEnvironment : LPCSTR optional -> Cstring
# pszzCoreDriverDependencies : LPCSTR -> Cstring
# cCorePrinterDrivers : DWORD -> UInt32
# pCorePrinterDrivers : CORE_PRINTER_DRIVERA* out -> Ptr{CORE_PRINTER_DRIVERA}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GetCorePrinterDriversA(
    const char* pszServer,
    const char* pszEnvironment,
    const char* pszzCoreDriverDependencies,
    uint32_t cCorePrinterDrivers,
    void* pCorePrinterDrivers);
]]
local winspool.drv = ffi.load("winspool.drv")
-- winspool.drv.GetCorePrinterDriversA(pszServer, pszEnvironment, pszzCoreDriverDependencies, cCorePrinterDrivers, pCorePrinterDrivers)
-- pszServer : LPCSTR optional
-- pszEnvironment : LPCSTR optional
-- pszzCoreDriverDependencies : LPCSTR
-- cCorePrinterDrivers : DWORD
-- pCorePrinterDrivers : CORE_PRINTER_DRIVERA* 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 GetCorePrinterDriversA = lib.func('__stdcall', 'GetCorePrinterDriversA', 'int32_t', ['str', 'str', 'str', 'uint32_t', 'void *']);
// GetCorePrinterDriversA(pszServer, pszEnvironment, pszzCoreDriverDependencies, cCorePrinterDrivers, pCorePrinterDrivers)
// pszServer : LPCSTR optional -> 'str'
// pszEnvironment : LPCSTR optional -> 'str'
// pszzCoreDriverDependencies : LPCSTR -> 'str'
// cCorePrinterDrivers : DWORD -> 'uint32_t'
// pCorePrinterDrivers : CORE_PRINTER_DRIVERA* out -> '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", {
  GetCorePrinterDriversA: { parameters: ["buffer", "buffer", "buffer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.GetCorePrinterDriversA(pszServer, pszEnvironment, pszzCoreDriverDependencies, cCorePrinterDrivers, pCorePrinterDrivers)
// pszServer : LPCSTR optional -> "buffer"
// pszEnvironment : LPCSTR optional -> "buffer"
// pszzCoreDriverDependencies : LPCSTR -> "buffer"
// cCorePrinterDrivers : DWORD -> "u32"
// pCorePrinterDrivers : CORE_PRINTER_DRIVERA* 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
int32_t GetCorePrinterDriversA(
    const char* pszServer,
    const char* pszEnvironment,
    const char* pszzCoreDriverDependencies,
    uint32_t cCorePrinterDrivers,
    void* pCorePrinterDrivers);
C, "winspool.drv");
// $ffi->GetCorePrinterDriversA(pszServer, pszEnvironment, pszzCoreDriverDependencies, cCorePrinterDrivers, pCorePrinterDrivers);
// pszServer : LPCSTR optional
// pszEnvironment : LPCSTR optional
// pszzCoreDriverDependencies : LPCSTR
// cCorePrinterDrivers : DWORD
// pCorePrinterDrivers : CORE_PRINTER_DRIVERA* 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 GetCorePrinterDriversA(
        String pszServer,   // LPCSTR optional
        String pszEnvironment,   // LPCSTR optional
        String pszzCoreDriverDependencies,   // LPCSTR
        int cCorePrinterDrivers,   // DWORD
        Pointer pCorePrinterDrivers   // CORE_PRINTER_DRIVERA* out
    );
}

@[Link("winspool.drv")]
lib Libwinspool.drv
  fun GetCorePrinterDriversA = GetCorePrinterDriversA(
    pszServer : UInt8*,   # LPCSTR optional
    pszEnvironment : UInt8*,   # LPCSTR optional
    pszzCoreDriverDependencies : UInt8*,   # LPCSTR
    cCorePrinterDrivers : UInt32,   # DWORD
    pCorePrinterDrivers : CORE_PRINTER_DRIVERA*   # CORE_PRINTER_DRIVERA* out
  ) : 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 GetCorePrinterDriversANative = Int32 Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, Uint32, Pointer<Void>);
typedef GetCorePrinterDriversADart = int Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Utf8>, int, Pointer<Void>);
final GetCorePrinterDriversA = DynamicLibrary.open('winspool.drv')
    .lookupFunction<GetCorePrinterDriversANative, GetCorePrinterDriversADart>('GetCorePrinterDriversA');
// pszServer : LPCSTR optional -> Pointer<Utf8>
// pszEnvironment : LPCSTR optional -> Pointer<Utf8>
// pszzCoreDriverDependencies : LPCSTR -> Pointer<Utf8>
// cCorePrinterDrivers : DWORD -> Uint32
// pCorePrinterDrivers : CORE_PRINTER_DRIVERA* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetCorePrinterDriversA(
  pszServer: PAnsiChar;   // LPCSTR optional
  pszEnvironment: PAnsiChar;   // LPCSTR optional
  pszzCoreDriverDependencies: PAnsiChar;   // LPCSTR
  cCorePrinterDrivers: DWORD;   // DWORD
  pCorePrinterDrivers: Pointer   // CORE_PRINTER_DRIVERA* out
): Integer; stdcall;
  external 'winspool.drv' name 'GetCorePrinterDriversA';

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

foreign import stdcall safe "GetCorePrinterDriversA"
  c_GetCorePrinterDriversA :: CString -> CString -> CString -> Word32 -> Ptr () -> IO Int32
-- pszServer : LPCSTR optional -> CString
-- pszEnvironment : LPCSTR optional -> CString
-- pszzCoreDriverDependencies : LPCSTR -> CString
-- cCorePrinterDrivers : DWORD -> Word32
-- pCorePrinterDrivers : CORE_PRINTER_DRIVERA* out -> 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 getcoreprinterdriversa =
  foreign "GetCorePrinterDriversA"
    (string @-> string @-> string @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* pszServer : LPCSTR optional -> string *)
(* pszEnvironment : LPCSTR optional -> string *)
(* pszzCoreDriverDependencies : LPCSTR -> string *)
(* cCorePrinterDrivers : DWORD -> uint32_t *)
(* pCorePrinterDrivers : CORE_PRINTER_DRIVERA* out -> (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 ("GetCorePrinterDriversA" get-core-printer-drivers-a :convention :stdcall) :int32
  (psz-server :string)   ; LPCSTR optional
  (psz-environment :string)   ; LPCSTR optional
  (pszz-core-driver-dependencies :string)   ; LPCSTR
  (c-core-printer-drivers :uint32)   ; DWORD
  (p-core-printer-drivers :pointer))   ; CORE_PRINTER_DRIVERA* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetCorePrinterDriversA = Win32::API::More->new('winspool.drv',
    'int GetCorePrinterDriversA(LPCSTR pszServer, LPCSTR pszEnvironment, LPCSTR pszzCoreDriverDependencies, DWORD cCorePrinterDrivers, LPVOID pCorePrinterDrivers)');
# my $ret = $GetCorePrinterDriversA->Call($pszServer, $pszEnvironment, $pszzCoreDriverDependencies, $cCorePrinterDrivers, $pCorePrinterDrivers);
# pszServer : LPCSTR optional -> LPCSTR
# pszEnvironment : LPCSTR optional -> LPCSTR
# pszzCoreDriverDependencies : LPCSTR -> LPCSTR
# cCorePrinterDrivers : DWORD -> DWORD
# pCorePrinterDrivers : CORE_PRINTER_DRIVERA* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。