waveOutGetPlaybackRate

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

DWORD waveOutGetPlaybackRate(
    HWAVEOUT hwo,
    DWORD* pdwRate
);

<DllImport("WINMM.dll", ExactSpelling:=True)>
Public Shared Function waveOutGetPlaybackRate(
    hwo As IntPtr,   ' HWAVEOUT
    <Out> ByRef pdwRate As UInteger   ' DWORD* out
) As UInteger
End Function

' hwo : HWAVEOUT
' pdwRate : DWORD* out
Declare PtrSafe Function waveOutGetPlaybackRate Lib "winmm" ( _
    ByVal hwo As LongPtr, _
    ByRef pdwRate 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

waveOutGetPlaybackRate = ctypes.windll.winmm.waveOutGetPlaybackRate
waveOutGetPlaybackRate.restype = wintypes.DWORD
waveOutGetPlaybackRate.argtypes = [
    wintypes.HANDLE,  # hwo : HWAVEOUT
    ctypes.POINTER(wintypes.DWORD),  # pdwRate : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
waveOutGetPlaybackRate = Fiddle::Function.new(
  lib['waveOutGetPlaybackRate'],
  [
    Fiddle::TYPE_VOIDP,  # hwo : HWAVEOUT
    Fiddle::TYPE_VOIDP,  # pdwRate : DWORD* out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "winmm")]
extern "system" {
    fn waveOutGetPlaybackRate(
        hwo: *mut core::ffi::c_void,  // HWAVEOUT
        pdwRate: *mut u32  // DWORD* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINMM.dll")]
public static extern uint waveOutGetPlaybackRate(IntPtr hwo, out uint pdwRate);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINMM_waveOutGetPlaybackRate' -Namespace Win32 -PassThru
# $api::waveOutGetPlaybackRate(hwo, pdwRate)

#uselib "WINMM.dll"
#func global waveOutGetPlaybackRate "waveOutGetPlaybackRate" sptr, sptr
; waveOutGetPlaybackRate hwo, varptr(pdwRate)   ; 戻り値は stat
; hwo : HWAVEOUT -> "sptr"
; pdwRate : DWORD* 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 (
	winmm = windows.NewLazySystemDLL("WINMM.dll")
	procwaveOutGetPlaybackRate = winmm.NewProc("waveOutGetPlaybackRate")
)

// hwo (HWAVEOUT), pdwRate (DWORD* out)
r1, _, err := procwaveOutGetPlaybackRate.Call(
	uintptr(hwo),
	uintptr(pdwRate),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function waveOutGetPlaybackRate(
  hwo: THandle;   // HWAVEOUT
  pdwRate: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'WINMM.dll' name 'waveOutGetPlaybackRate';

result := DllCall("WINMM\waveOutGetPlaybackRate"
    , "Ptr", hwo   ; HWAVEOUT
    , "Ptr", pdwRate   ; DWORD* out
    , "UInt")   ; return: DWORD

●waveOutGetPlaybackRate(hwo, pdwRate) = DLL("WINMM.dll", "dword waveOutGetPlaybackRate(void*, void*)")
# 呼び出し: waveOutGetPlaybackRate(hwo, pdwRate)
# hwo : HWAVEOUT -> "void*"
# pdwRate : DWORD* 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 "winmm" fn waveOutGetPlaybackRate(
    hwo: ?*anyopaque, // HWAVEOUT
    pdwRate: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) u32;

proc waveOutGetPlaybackRate(
    hwo: pointer,  # HWAVEOUT
    pdwRate: ptr uint32  # DWORD* out
): uint32 {.importc: "waveOutGetPlaybackRate", stdcall, dynlib: "WINMM.dll".}

pragma(lib, "winmm");
extern(Windows)
uint waveOutGetPlaybackRate(
    void* hwo,   // HWAVEOUT
    uint* pdwRate   // DWORD* out
);

ccall((:waveOutGetPlaybackRate, "WINMM.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Ptr{UInt32}),
      hwo, pdwRate)
# hwo : HWAVEOUT -> Ptr{Cvoid}
# pdwRate : DWORD* 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 waveOutGetPlaybackRate(
    void* hwo,
    uint32_t* pdwRate);
]]
local winmm = ffi.load("winmm")
-- winmm.waveOutGetPlaybackRate(hwo, pdwRate)
-- hwo : HWAVEOUT
-- pdwRate : DWORD* 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('WINMM.dll');
const waveOutGetPlaybackRate = lib.func('__stdcall', 'waveOutGetPlaybackRate', 'uint32_t', ['void *', 'uint32_t *']);
// waveOutGetPlaybackRate(hwo, pdwRate)
// hwo : HWAVEOUT -> 'void *'
// pdwRate : DWORD* 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("WINMM.dll", {
  waveOutGetPlaybackRate: { parameters: ["pointer", "pointer"], result: "u32" },
});
// lib.symbols.waveOutGetPlaybackRate(hwo, pdwRate)
// hwo : HWAVEOUT -> "pointer"
// pdwRate : DWORD* out -> "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 waveOutGetPlaybackRate(
    void* hwo,
    uint32_t* pdwRate);
C, "WINMM.dll");
// $ffi->waveOutGetPlaybackRate(hwo, pdwRate);
// hwo : HWAVEOUT
// pdwRate : DWORD* 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 Winmm extends StdCallLibrary {
    Winmm INSTANCE = Native.load("winmm", Winmm.class);
    int waveOutGetPlaybackRate(
        Pointer hwo,   // HWAVEOUT
        IntByReference pdwRate   // DWORD* out
    );
}

@[Link("winmm")]
lib LibWINMM
  fun waveOutGetPlaybackRate = waveOutGetPlaybackRate(
    hwo : Void*,   # HWAVEOUT
    pdwRate : UInt32*   # DWORD* 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 waveOutGetPlaybackRateNative = Uint32 Function(Pointer<Void>, Pointer<Uint32>);
typedef waveOutGetPlaybackRateDart = int Function(Pointer<Void>, Pointer<Uint32>);
final waveOutGetPlaybackRate = DynamicLibrary.open('WINMM.dll')
    .lookupFunction<waveOutGetPlaybackRateNative, waveOutGetPlaybackRateDart>('waveOutGetPlaybackRate');
// hwo : HWAVEOUT -> Pointer<Void>
// pdwRate : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function waveOutGetPlaybackRate(
  hwo: THandle;   // HWAVEOUT
  pdwRate: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'WINMM.dll' name 'waveOutGetPlaybackRate';

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

foreign import stdcall safe "waveOutGetPlaybackRate"
  c_waveOutGetPlaybackRate :: Ptr () -> Ptr Word32 -> IO Word32
-- hwo : HWAVEOUT -> Ptr ()
-- pdwRate : DWORD* 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。

open Ctypes
open Foreign

let waveoutgetplaybackrate =
  foreign "waveOutGetPlaybackRate"
    ((ptr void) @-> (ptr uint32_t) @-> returning uint32_t)
(* hwo : HWAVEOUT -> (ptr void) *)
(* pdwRate : DWORD* 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 winmm (t "WINMM.dll"))
(cffi:use-foreign-library winmm)

(cffi:defcfun ("waveOutGetPlaybackRate" wave-out-get-playback-rate :convention :stdcall) :uint32
  (hwo :pointer)   ; HWAVEOUT
  (pdw-rate :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $waveOutGetPlaybackRate = Win32::API::More->new('WINMM',
    'DWORD waveOutGetPlaybackRate(HANDLE hwo, LPVOID pdwRate)');
# my $ret = $waveOutGetPlaybackRate->Call($hwo, $pdwRate);
# hwo : HWAVEOUT -> HANDLE
# pdwRate : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。