midiConnect

// WINMM.dll
#include <windows.h>

DWORD midiConnect(
    HMIDI hmi,
    HMIDIOUT hmo,
    void* pReserved   // optional
);

<DllImport("WINMM.dll", ExactSpelling:=True)>
Public Shared Function midiConnect(
    hmi As IntPtr,   ' HMIDI
    hmo As IntPtr,   ' HMIDIOUT
    pReserved As IntPtr   ' void* optional
) As UInteger
End Function

' hmi : HMIDI
' hmo : HMIDIOUT
' pReserved : void* optional
Declare PtrSafe Function midiConnect Lib "winmm" ( _
    ByVal hmi As LongPtr, _
    ByVal hmo As LongPtr, _
    ByVal pReserved 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

midiConnect = ctypes.windll.winmm.midiConnect
midiConnect.restype = wintypes.DWORD
midiConnect.argtypes = [
    wintypes.HANDLE,  # hmi : HMIDI
    wintypes.HANDLE,  # hmo : HMIDIOUT
    ctypes.POINTER(None),  # pReserved : void* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
midiConnect = Fiddle::Function.new(
  lib['midiConnect'],
  [
    Fiddle::TYPE_VOIDP,  # hmi : HMIDI
    Fiddle::TYPE_VOIDP,  # hmo : HMIDIOUT
    Fiddle::TYPE_VOIDP,  # pReserved : void* optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "winmm")]
extern "system" {
    fn midiConnect(
        hmi: *mut core::ffi::c_void,  // HMIDI
        hmo: *mut core::ffi::c_void,  // HMIDIOUT
        pReserved: *mut ()  // void* optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINMM.dll")]
public static extern uint midiConnect(IntPtr hmi, IntPtr hmo, IntPtr pReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINMM_midiConnect' -Namespace Win32 -PassThru
# $api::midiConnect(hmi, hmo, pReserved)

#uselib "WINMM.dll"
#func global midiConnect "midiConnect" sptr, sptr, sptr
; midiConnect hmi, hmo, pReserved   ; 戻り値は stat
; hmi : HMIDI -> "sptr"
; hmo : HMIDIOUT -> "sptr"
; pReserved : void* optional -> "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 "WINMM.dll"
#cfunc global midiConnect "midiConnect" sptr, sptr, sptr
; res = midiConnect(hmi, hmo, pReserved)
; hmi : HMIDI -> "sptr"
; hmo : HMIDIOUT -> "sptr"
; pReserved : void* optional -> "sptr"

; DWORD midiConnect(HMIDI hmi, HMIDIOUT hmo, void* pReserved)
#uselib "WINMM.dll"
#cfunc global midiConnect "midiConnect" intptr, intptr, intptr
; res = midiConnect(hmi, hmo, pReserved)
; hmi : HMIDI -> "intptr"
; hmo : HMIDIOUT -> "intptr"
; pReserved : void* optional -> "intptr"

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

var (
	winmm = windows.NewLazySystemDLL("WINMM.dll")
	procmidiConnect = winmm.NewProc("midiConnect")
)

// hmi (HMIDI), hmo (HMIDIOUT), pReserved (void* optional)
r1, _, err := procmidiConnect.Call(
	uintptr(hmi),
	uintptr(hmo),
	uintptr(pReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function midiConnect(
  hmi: THandle;   // HMIDI
  hmo: THandle;   // HMIDIOUT
  pReserved: Pointer   // void* optional
): DWORD; stdcall;
  external 'WINMM.dll' name 'midiConnect';

result := DllCall("WINMM\midiConnect"
    , "Ptr", hmi   ; HMIDI
    , "Ptr", hmo   ; HMIDIOUT
    , "Ptr", pReserved   ; void* optional
    , "UInt")   ; return: DWORD

●midiConnect(hmi, hmo, pReserved) = DLL("WINMM.dll", "dword midiConnect(void*, void*, void*)")
# 呼び出し: midiConnect(hmi, hmo, pReserved)
# hmi : HMIDI -> "void*"
# hmo : HMIDIOUT -> "void*"
# pReserved : void* 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)。

const std = @import("std");

extern "winmm" fn midiConnect(
    hmi: ?*anyopaque, // HMIDI
    hmo: ?*anyopaque, // HMIDIOUT
    pReserved: ?*anyopaque // void* optional
) callconv(std.os.windows.WINAPI) u32;

proc midiConnect(
    hmi: pointer,  # HMIDI
    hmo: pointer,  # HMIDIOUT
    pReserved: pointer  # void* optional
): uint32 {.importc: "midiConnect", stdcall, dynlib: "WINMM.dll".}

pragma(lib, "winmm");
extern(Windows)
uint midiConnect(
    void* hmi,   // HMIDI
    void* hmo,   // HMIDIOUT
    void* pReserved   // void* optional
);

ccall((:midiConnect, "WINMM.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Ptr{Cvoid}, Ptr{Cvoid}),
      hmi, hmo, pReserved)
# hmi : HMIDI -> Ptr{Cvoid}
# hmo : HMIDIOUT -> Ptr{Cvoid}
# pReserved : void* optional -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t midiConnect(
    void* hmi,
    void* hmo,
    void* pReserved);
]]
local winmm = ffi.load("winmm")
-- winmm.midiConnect(hmi, hmo, pReserved)
-- hmi : HMIDI
-- hmo : HMIDIOUT
-- pReserved : void* 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。

const koffi = require('koffi');
const lib = koffi.load('WINMM.dll');
const midiConnect = lib.func('__stdcall', 'midiConnect', 'uint32_t', ['void *', 'void *', 'void *']);
// midiConnect(hmi, hmo, pReserved)
// hmi : HMIDI -> 'void *'
// hmo : HMIDIOUT -> 'void *'
// pReserved : void* 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("WINMM.dll", {
  midiConnect: { parameters: ["pointer", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.midiConnect(hmi, hmo, pReserved)
// hmi : HMIDI -> "pointer"
// hmo : HMIDIOUT -> "pointer"
// pReserved : void* optional -> "pointer"
// 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
uint32_t midiConnect(
    void* hmi,
    void* hmo,
    void* pReserved);
C, "WINMM.dll");
// $ffi->midiConnect(hmi, hmo, pReserved);
// hmi : HMIDI
// hmo : HMIDIOUT
// pReserved : void* 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 Winmm extends StdCallLibrary {
    Winmm INSTANCE = Native.load("winmm", Winmm.class);
    int midiConnect(
        Pointer hmi,   // HMIDI
        Pointer hmo,   // HMIDIOUT
        Pointer pReserved   // void* optional
    );
}

@[Link("winmm")]
lib LibWINMM
  fun midiConnect = midiConnect(
    hmi : Void*,   # HMIDI
    hmo : Void*,   # HMIDIOUT
    pReserved : Void*   # void* optional
  ) : 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 midiConnectNative = Uint32 Function(Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef midiConnectDart = int Function(Pointer<Void>, Pointer<Void>, Pointer<Void>);
final midiConnect = DynamicLibrary.open('WINMM.dll')
    .lookupFunction<midiConnectNative, midiConnectDart>('midiConnect');
// hmi : HMIDI -> Pointer<Void>
// hmo : HMIDIOUT -> Pointer<Void>
// pReserved : void* optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function midiConnect(
  hmi: THandle;   // HMIDI
  hmo: THandle;   // HMIDIOUT
  pReserved: Pointer   // void* optional
): DWORD; stdcall;
  external 'WINMM.dll' name 'midiConnect';

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

foreign import stdcall safe "midiConnect"
  c_midiConnect :: Ptr () -> Ptr () -> Ptr () -> IO Word32
-- hmi : HMIDI -> Ptr ()
-- hmo : HMIDIOUT -> Ptr ()
-- pReserved : void* 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 midiconnect =
  foreign "midiConnect"
    ((ptr void) @-> (ptr void) @-> (ptr void) @-> returning uint32_t)
(* hmi : HMIDI -> (ptr void) *)
(* hmo : HMIDIOUT -> (ptr void) *)
(* pReserved : void* 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 winmm (t "WINMM.dll"))
(cffi:use-foreign-library winmm)

(cffi:defcfun ("midiConnect" midi-connect :convention :stdcall) :uint32
  (hmi :pointer)   ; HMIDI
  (hmo :pointer)   ; HMIDIOUT
  (p-reserved :pointer))   ; void* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $midiConnect = Win32::API::More->new('WINMM',
    'DWORD midiConnect(HANDLE hmi, HANDLE hmo, LPVOID pReserved)');
# my $ret = $midiConnect->Call($hmi, $hmo, $pReserved);
# hmi : HMIDI -> HANDLE
# hmo : HMIDIOUT -> HANDLE
# pReserved : void* optional -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。