mmioSetBuffer

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

DWORD mmioSetBuffer(
    HMMIO hmmio,
    LPSTR pchBuffer,   // optional
    INT cchBuffer,
    DWORD fuBuffer
);

<DllImport("WINMM.dll", ExactSpelling:=True)>
Public Shared Function mmioSetBuffer(
    hmmio As IntPtr,   ' HMMIO
    <MarshalAs(UnmanagedType.LPStr)> pchBuffer As System.Text.StringBuilder,   ' LPSTR optional, out
    cchBuffer As Integer,   ' INT
    fuBuffer As UInteger   ' DWORD
) As UInteger
End Function

' hmmio : HMMIO
' pchBuffer : LPSTR optional, out
' cchBuffer : INT
' fuBuffer : DWORD
Declare PtrSafe Function mmioSetBuffer Lib "winmm" ( _
    ByVal hmmio As LongPtr, _
    ByVal pchBuffer As String, _
    ByVal cchBuffer As Long, _
    ByVal fuBuffer 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

mmioSetBuffer = ctypes.windll.winmm.mmioSetBuffer
mmioSetBuffer.restype = wintypes.DWORD
mmioSetBuffer.argtypes = [
    wintypes.HANDLE,  # hmmio : HMMIO
    wintypes.LPSTR,  # pchBuffer : LPSTR optional, out
    ctypes.c_int,  # cchBuffer : INT
    wintypes.DWORD,  # fuBuffer : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
mmioSetBuffer = Fiddle::Function.new(
  lib['mmioSetBuffer'],
  [
    Fiddle::TYPE_VOIDP,  # hmmio : HMMIO
    Fiddle::TYPE_VOIDP,  # pchBuffer : LPSTR optional, out
    Fiddle::TYPE_INT,  # cchBuffer : INT
    -Fiddle::TYPE_INT,  # fuBuffer : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "winmm")]
extern "system" {
    fn mmioSetBuffer(
        hmmio: *mut core::ffi::c_void,  // HMMIO
        pchBuffer: *mut u8,  // LPSTR optional, out
        cchBuffer: i32,  // INT
        fuBuffer: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINMM.dll")]
public static extern uint mmioSetBuffer(IntPtr hmmio, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder pchBuffer, int cchBuffer, uint fuBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINMM_mmioSetBuffer' -Namespace Win32 -PassThru
# $api::mmioSetBuffer(hmmio, pchBuffer, cchBuffer, fuBuffer)

#uselib "WINMM.dll"
#func global mmioSetBuffer "mmioSetBuffer" sptr, sptr, sptr, sptr
; mmioSetBuffer hmmio, varptr(pchBuffer), cchBuffer, fuBuffer   ; 戻り値は stat
; hmmio : HMMIO -> "sptr"
; pchBuffer : LPSTR optional, out -> "sptr"
; cchBuffer : INT -> "sptr"
; fuBuffer : 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。

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

var (
	winmm = windows.NewLazySystemDLL("WINMM.dll")
	procmmioSetBuffer = winmm.NewProc("mmioSetBuffer")
)

// hmmio (HMMIO), pchBuffer (LPSTR optional, out), cchBuffer (INT), fuBuffer (DWORD)
r1, _, err := procmmioSetBuffer.Call(
	uintptr(hmmio),
	uintptr(pchBuffer),
	uintptr(cchBuffer),
	uintptr(fuBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function mmioSetBuffer(
  hmmio: THandle;   // HMMIO
  pchBuffer: PAnsiChar;   // LPSTR optional, out
  cchBuffer: Integer;   // INT
  fuBuffer: DWORD   // DWORD
): DWORD; stdcall;
  external 'WINMM.dll' name 'mmioSetBuffer';

result := DllCall("WINMM\mmioSetBuffer"
    , "Ptr", hmmio   ; HMMIO
    , "Ptr", pchBuffer   ; LPSTR optional, out
    , "Int", cchBuffer   ; INT
    , "UInt", fuBuffer   ; DWORD
    , "UInt")   ; return: DWORD

●mmioSetBuffer(hmmio, pchBuffer, cchBuffer, fuBuffer) = DLL("WINMM.dll", "dword mmioSetBuffer(void*, char*, int, dword)")
# 呼び出し: mmioSetBuffer(hmmio, pchBuffer, cchBuffer, fuBuffer)
# hmmio : HMMIO -> "void*"
# pchBuffer : LPSTR optional, out -> "char*"
# cchBuffer : INT -> "int"
# fuBuffer : 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 "winmm" fn mmioSetBuffer(
    hmmio: ?*anyopaque, // HMMIO
    pchBuffer: [*c]u8, // LPSTR optional, out
    cchBuffer: i32, // INT
    fuBuffer: u32 // DWORD
) callconv(std.os.windows.WINAPI) u32;

proc mmioSetBuffer(
    hmmio: pointer,  # HMMIO
    pchBuffer: ptr char,  # LPSTR optional, out
    cchBuffer: int32,  # INT
    fuBuffer: uint32  # DWORD
): uint32 {.importc: "mmioSetBuffer", stdcall, dynlib: "WINMM.dll".}

pragma(lib, "winmm");
extern(Windows)
uint mmioSetBuffer(
    void* hmmio,   // HMMIO
    char* pchBuffer,   // LPSTR optional, out
    int cchBuffer,   // INT
    uint fuBuffer   // DWORD
);

ccall((:mmioSetBuffer, "WINMM.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Ptr{UInt8}, Int32, UInt32),
      hmmio, pchBuffer, cchBuffer, fuBuffer)
# hmmio : HMMIO -> Ptr{Cvoid}
# pchBuffer : LPSTR optional, out -> Ptr{UInt8}
# cchBuffer : INT -> Int32
# fuBuffer : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t mmioSetBuffer(
    void* hmmio,
    char* pchBuffer,
    int32_t cchBuffer,
    uint32_t fuBuffer);
]]
local winmm = ffi.load("winmm")
-- winmm.mmioSetBuffer(hmmio, pchBuffer, cchBuffer, fuBuffer)
-- hmmio : HMMIO
-- pchBuffer : LPSTR optional, out
-- cchBuffer : INT
-- fuBuffer : 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('WINMM.dll');
const mmioSetBuffer = lib.func('__stdcall', 'mmioSetBuffer', 'uint32_t', ['void *', 'char *', 'int32_t', 'uint32_t']);
// mmioSetBuffer(hmmio, pchBuffer, cchBuffer, fuBuffer)
// hmmio : HMMIO -> 'void *'
// pchBuffer : LPSTR optional, out -> 'char *'
// cchBuffer : INT -> 'int32_t'
// fuBuffer : 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("WINMM.dll", {
  mmioSetBuffer: { parameters: ["pointer", "buffer", "i32", "u32"], result: "u32" },
});
// lib.symbols.mmioSetBuffer(hmmio, pchBuffer, cchBuffer, fuBuffer)
// hmmio : HMMIO -> "pointer"
// pchBuffer : LPSTR optional, out -> "buffer"
// cchBuffer : INT -> "i32"
// fuBuffer : 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
uint32_t mmioSetBuffer(
    void* hmmio,
    char* pchBuffer,
    int32_t cchBuffer,
    uint32_t fuBuffer);
C, "WINMM.dll");
// $ffi->mmioSetBuffer(hmmio, pchBuffer, cchBuffer, fuBuffer);
// hmmio : HMMIO
// pchBuffer : LPSTR optional, out
// cchBuffer : INT
// fuBuffer : 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 Winmm extends StdCallLibrary {
    Winmm INSTANCE = Native.load("winmm", Winmm.class);
    int mmioSetBuffer(
        Pointer hmmio,   // HMMIO
        byte[] pchBuffer,   // LPSTR optional, out
        int cchBuffer,   // INT
        int fuBuffer   // DWORD
    );
}

@[Link("winmm")]
lib LibWINMM
  fun mmioSetBuffer = mmioSetBuffer(
    hmmio : Void*,   # HMMIO
    pchBuffer : UInt8*,   # LPSTR optional, out
    cchBuffer : Int32,   # INT
    fuBuffer : UInt32   # DWORD
  ) : 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 mmioSetBufferNative = Uint32 Function(Pointer<Void>, Pointer<Utf8>, Int32, Uint32);
typedef mmioSetBufferDart = int Function(Pointer<Void>, Pointer<Utf8>, int, int);
final mmioSetBuffer = DynamicLibrary.open('WINMM.dll')
    .lookupFunction<mmioSetBufferNative, mmioSetBufferDart>('mmioSetBuffer');
// hmmio : HMMIO -> Pointer<Void>
// pchBuffer : LPSTR optional, out -> Pointer<Utf8>
// cchBuffer : INT -> Int32
// fuBuffer : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function mmioSetBuffer(
  hmmio: THandle;   // HMMIO
  pchBuffer: PAnsiChar;   // LPSTR optional, out
  cchBuffer: Integer;   // INT
  fuBuffer: DWORD   // DWORD
): DWORD; stdcall;
  external 'WINMM.dll' name 'mmioSetBuffer';

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

foreign import stdcall safe "mmioSetBuffer"
  c_mmioSetBuffer :: Ptr () -> CString -> Int32 -> Word32 -> IO Word32
-- hmmio : HMMIO -> Ptr ()
-- pchBuffer : LPSTR optional, out -> CString
-- cchBuffer : INT -> Int32
-- fuBuffer : 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 mmiosetbuffer =
  foreign "mmioSetBuffer"
    ((ptr void) @-> string @-> int32_t @-> uint32_t @-> returning uint32_t)
(* hmmio : HMMIO -> (ptr void) *)
(* pchBuffer : LPSTR optional, out -> string *)
(* cchBuffer : INT -> int32_t *)
(* fuBuffer : 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 winmm (t "WINMM.dll"))
(cffi:use-foreign-library winmm)

(cffi:defcfun ("mmioSetBuffer" mmio-set-buffer :convention :stdcall) :uint32
  (hmmio :pointer)   ; HMMIO
  (pch-buffer :pointer)   ; LPSTR optional, out
  (cch-buffer :int32)   ; INT
  (fu-buffer :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $mmioSetBuffer = Win32::API::More->new('WINMM',
    'DWORD mmioSetBuffer(HANDLE hmmio, LPSTR pchBuffer, int cchBuffer, DWORD fuBuffer)');
# my $ret = $mmioSetBuffer->Call($hmmio, $pchBuffer, $cchBuffer, $fuBuffer);
# hmmio : HMMIO -> HANDLE
# pchBuffer : LPSTR optional, out -> LPSTR
# cchBuffer : INT -> int
# fuBuffer : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。