mmioSendMessage

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

LRESULT mmioSendMessage(
    HMMIO hmmio,
    DWORD uMsg,
    LPARAM lParam1,   // optional
    LPARAM lParam2   // optional
);

<DllImport("WINMM.dll", ExactSpelling:=True)>
Public Shared Function mmioSendMessage(
    hmmio As IntPtr,   ' HMMIO
    uMsg As UInteger,   ' DWORD
    lParam1 As IntPtr,   ' LPARAM optional
    lParam2 As IntPtr   ' LPARAM optional
) As IntPtr
End Function

' hmmio : HMMIO
' uMsg : DWORD
' lParam1 : LPARAM optional
' lParam2 : LPARAM optional
Declare PtrSafe Function mmioSendMessage Lib "winmm" ( _
    ByVal hmmio As LongPtr, _
    ByVal uMsg As Long, _
    ByVal lParam1 As LongPtr, _
    ByVal lParam2 As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

mmioSendMessage = ctypes.windll.winmm.mmioSendMessage
mmioSendMessage.restype = ctypes.c_ssize_t
mmioSendMessage.argtypes = [
    wintypes.HANDLE,  # hmmio : HMMIO
    wintypes.DWORD,  # uMsg : DWORD
    ctypes.c_ssize_t,  # lParam1 : LPARAM optional
    ctypes.c_ssize_t,  # lParam2 : LPARAM optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
mmioSendMessage = Fiddle::Function.new(
  lib['mmioSendMessage'],
  [
    Fiddle::TYPE_VOIDP,  # hmmio : HMMIO
    -Fiddle::TYPE_INT,  # uMsg : DWORD
    Fiddle::TYPE_INTPTR_T,  # lParam1 : LPARAM optional
    Fiddle::TYPE_INTPTR_T,  # lParam2 : LPARAM optional
  ],
  Fiddle::TYPE_INTPTR_T)

#[link(name = "winmm")]
extern "system" {
    fn mmioSendMessage(
        hmmio: *mut core::ffi::c_void,  // HMMIO
        uMsg: u32,  // DWORD
        lParam1: isize,  // LPARAM optional
        lParam2: isize  // LPARAM optional
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINMM.dll")]
public static extern IntPtr mmioSendMessage(IntPtr hmmio, uint uMsg, IntPtr lParam1, IntPtr lParam2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINMM_mmioSendMessage' -Namespace Win32 -PassThru
# $api::mmioSendMessage(hmmio, uMsg, lParam1, lParam2)

#uselib "WINMM.dll"
#func global mmioSendMessage "mmioSendMessage" sptr, sptr, sptr, sptr
; mmioSendMessage hmmio, uMsg, lParam1, lParam2   ; 戻り値は stat
; hmmio : HMMIO -> "sptr"
; uMsg : DWORD -> "sptr"
; lParam1 : LPARAM optional -> "sptr"
; lParam2 : LPARAM 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 mmioSendMessage "mmioSendMessage" sptr, int, sptr, sptr
; res = mmioSendMessage(hmmio, uMsg, lParam1, lParam2)
; hmmio : HMMIO -> "sptr"
; uMsg : DWORD -> "int"
; lParam1 : LPARAM optional -> "sptr"
; lParam2 : LPARAM optional -> "sptr"

; LRESULT mmioSendMessage(HMMIO hmmio, DWORD uMsg, LPARAM lParam1, LPARAM lParam2)
#uselib "WINMM.dll"
#cfunc global mmioSendMessage "mmioSendMessage" intptr, int, intptr, intptr
; res = mmioSendMessage(hmmio, uMsg, lParam1, lParam2)
; hmmio : HMMIO -> "intptr"
; uMsg : DWORD -> "int"
; lParam1 : LPARAM optional -> "intptr"
; lParam2 : LPARAM optional -> "intptr"

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

var (
	winmm = windows.NewLazySystemDLL("WINMM.dll")
	procmmioSendMessage = winmm.NewProc("mmioSendMessage")
)

// hmmio (HMMIO), uMsg (DWORD), lParam1 (LPARAM optional), lParam2 (LPARAM optional)
r1, _, err := procmmioSendMessage.Call(
	uintptr(hmmio),
	uintptr(uMsg),
	uintptr(lParam1),
	uintptr(lParam2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LRESULT

function mmioSendMessage(
  hmmio: THandle;   // HMMIO
  uMsg: DWORD;   // DWORD
  lParam1: NativeInt;   // LPARAM optional
  lParam2: NativeInt   // LPARAM optional
): NativeInt; stdcall;
  external 'WINMM.dll' name 'mmioSendMessage';

result := DllCall("WINMM\mmioSendMessage"
    , "Ptr", hmmio   ; HMMIO
    , "UInt", uMsg   ; DWORD
    , "Ptr", lParam1   ; LPARAM optional
    , "Ptr", lParam2   ; LPARAM optional
    , "Ptr")   ; return: LRESULT

●mmioSendMessage(hmmio, uMsg, lParam1, lParam2) = DLL("WINMM.dll", "int mmioSendMessage(void*, dword, int, int)")
# 呼び出し: mmioSendMessage(hmmio, uMsg, lParam1, lParam2)
# hmmio : HMMIO -> "void*"
# uMsg : DWORD -> "dword"
# lParam1 : LPARAM optional -> "int"
# lParam2 : LPARAM optional -> "int"
# 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 mmioSendMessage(
    hmmio: ?*anyopaque, // HMMIO
    uMsg: u32, // DWORD
    lParam1: isize, // LPARAM optional
    lParam2: isize // LPARAM optional
) callconv(std.os.windows.WINAPI) isize;

proc mmioSendMessage(
    hmmio: pointer,  # HMMIO
    uMsg: uint32,  # DWORD
    lParam1: int,  # LPARAM optional
    lParam2: int  # LPARAM optional
): int {.importc: "mmioSendMessage", stdcall, dynlib: "WINMM.dll".}

pragma(lib, "winmm");
extern(Windows)
ptrdiff_t mmioSendMessage(
    void* hmmio,   // HMMIO
    uint uMsg,   // DWORD
    ptrdiff_t lParam1,   // LPARAM optional
    ptrdiff_t lParam2   // LPARAM optional
);

ccall((:mmioSendMessage, "WINMM.dll"), stdcall, Int,
      (Ptr{Cvoid}, UInt32, Int, Int),
      hmmio, uMsg, lParam1, lParam2)
# hmmio : HMMIO -> Ptr{Cvoid}
# uMsg : DWORD -> UInt32
# lParam1 : LPARAM optional -> Int
# lParam2 : LPARAM optional -> Int
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
intptr_t mmioSendMessage(
    void* hmmio,
    uint32_t uMsg,
    intptr_t lParam1,
    intptr_t lParam2);
]]
local winmm = ffi.load("winmm")
-- winmm.mmioSendMessage(hmmio, uMsg, lParam1, lParam2)
-- hmmio : HMMIO
-- uMsg : DWORD
-- lParam1 : LPARAM optional
-- lParam2 : LPARAM 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 mmioSendMessage = lib.func('__stdcall', 'mmioSendMessage', 'intptr_t', ['void *', 'uint32_t', 'intptr_t', 'intptr_t']);
// mmioSendMessage(hmmio, uMsg, lParam1, lParam2)
// hmmio : HMMIO -> 'void *'
// uMsg : DWORD -> 'uint32_t'
// lParam1 : LPARAM optional -> 'intptr_t'
// lParam2 : LPARAM optional -> 'intptr_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("WINMM.dll", {
  mmioSendMessage: { parameters: ["pointer", "u32", "isize", "isize"], result: "isize" },
});
// lib.symbols.mmioSendMessage(hmmio, uMsg, lParam1, lParam2)
// hmmio : HMMIO -> "pointer"
// uMsg : DWORD -> "u32"
// lParam1 : LPARAM optional -> "isize"
// lParam2 : LPARAM optional -> "isize"
// 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
intptr_t mmioSendMessage(
    void* hmmio,
    uint32_t uMsg,
    intptr_t lParam1,
    intptr_t lParam2);
C, "WINMM.dll");
// $ffi->mmioSendMessage(hmmio, uMsg, lParam1, lParam2);
// hmmio : HMMIO
// uMsg : DWORD
// lParam1 : LPARAM optional
// lParam2 : LPARAM 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);
    long mmioSendMessage(
        Pointer hmmio,   // HMMIO
        int uMsg,   // DWORD
        long lParam1,   // LPARAM optional
        long lParam2   // LPARAM optional
    );
}

@[Link("winmm")]
lib LibWINMM
  fun mmioSendMessage = mmioSendMessage(
    hmmio : Void*,   # HMMIO
    uMsg : UInt32,   # DWORD
    lParam1 : LibC::SSizeT,   # LPARAM optional
    lParam2 : LibC::SSizeT   # LPARAM optional
  ) : LibC::SSizeT
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 mmioSendMessageNative = IntPtr Function(Pointer<Void>, Uint32, IntPtr, IntPtr);
typedef mmioSendMessageDart = int Function(Pointer<Void>, int, int, int);
final mmioSendMessage = DynamicLibrary.open('WINMM.dll')
    .lookupFunction<mmioSendMessageNative, mmioSendMessageDart>('mmioSendMessage');
// hmmio : HMMIO -> Pointer<Void>
// uMsg : DWORD -> Uint32
// lParam1 : LPARAM optional -> IntPtr
// lParam2 : LPARAM optional -> IntPtr
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function mmioSendMessage(
  hmmio: THandle;   // HMMIO
  uMsg: DWORD;   // DWORD
  lParam1: NativeInt;   // LPARAM optional
  lParam2: NativeInt   // LPARAM optional
): NativeInt; stdcall;
  external 'WINMM.dll' name 'mmioSendMessage';

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

foreign import stdcall safe "mmioSendMessage"
  c_mmioSendMessage :: Ptr () -> Word32 -> CIntPtr -> CIntPtr -> IO CIntPtr
-- hmmio : HMMIO -> Ptr ()
-- uMsg : DWORD -> Word32
-- lParam1 : LPARAM optional -> CIntPtr
-- lParam2 : LPARAM optional -> CIntPtr
-- 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 mmiosendmessage =
  foreign "mmioSendMessage"
    ((ptr void) @-> uint32_t @-> intptr_t @-> intptr_t @-> returning intptr_t)
(* hmmio : HMMIO -> (ptr void) *)
(* uMsg : DWORD -> uint32_t *)
(* lParam1 : LPARAM optional -> intptr_t *)
(* lParam2 : LPARAM optional -> intptr_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 winmm (t "WINMM.dll"))
(cffi:use-foreign-library winmm)

(cffi:defcfun ("mmioSendMessage" mmio-send-message :convention :stdcall) :int64
  (hmmio :pointer)   ; HMMIO
  (u-msg :uint32)   ; DWORD
  (l-param1 :int64)   ; LPARAM optional
  (l-param2 :int64))   ; LPARAM optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $mmioSendMessage = Win32::API::More->new('WINMM',
    'LPARAM mmioSendMessage(HANDLE hmmio, DWORD uMsg, LPARAM lParam1, LPARAM lParam2)');
# my $ret = $mmioSendMessage->Call($hmmio, $uMsg, $lParam1, $lParam2);
# hmmio : HMMIO -> HANDLE
# uMsg : DWORD -> DWORD
# lParam1 : LPARAM optional -> LPARAM
# lParam2 : LPARAM optional -> LPARAM
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。