acmStreamMessage

// MSACM32.dll
#include <windows.h>

DWORD acmStreamMessage(
    HACMSTREAM has,
    DWORD uMsg,
    LPARAM lParam1,
    LPARAM lParam2
);

<DllImport("MSACM32.dll", ExactSpelling:=True)>
Public Shared Function acmStreamMessage(
    has As IntPtr,   ' HACMSTREAM
    uMsg As UInteger,   ' DWORD
    lParam1 As IntPtr,   ' LPARAM
    lParam2 As IntPtr   ' LPARAM
) As UInteger
End Function

' has : HACMSTREAM
' uMsg : DWORD
' lParam1 : LPARAM
' lParam2 : LPARAM
Declare PtrSafe Function acmStreamMessage Lib "msacm32" ( _
    ByVal has As LongPtr, _
    ByVal uMsg As Long, _
    ByVal lParam1 As LongPtr, _
    ByVal lParam2 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

acmStreamMessage = ctypes.windll.msacm32.acmStreamMessage
acmStreamMessage.restype = wintypes.DWORD
acmStreamMessage.argtypes = [
    wintypes.HANDLE,  # has : HACMSTREAM
    wintypes.DWORD,  # uMsg : DWORD
    ctypes.c_ssize_t,  # lParam1 : LPARAM
    ctypes.c_ssize_t,  # lParam2 : LPARAM
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSACM32.dll')
acmStreamMessage = Fiddle::Function.new(
  lib['acmStreamMessage'],
  [
    Fiddle::TYPE_VOIDP,  # has : HACMSTREAM
    -Fiddle::TYPE_INT,  # uMsg : DWORD
    Fiddle::TYPE_INTPTR_T,  # lParam1 : LPARAM
    Fiddle::TYPE_INTPTR_T,  # lParam2 : LPARAM
  ],
  -Fiddle::TYPE_INT)

#[link(name = "msacm32")]
extern "system" {
    fn acmStreamMessage(
        has: *mut core::ffi::c_void,  // HACMSTREAM
        uMsg: u32,  // DWORD
        lParam1: isize,  // LPARAM
        lParam2: isize  // LPARAM
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MSACM32.dll")]
public static extern uint acmStreamMessage(IntPtr has, uint uMsg, IntPtr lParam1, IntPtr lParam2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSACM32_acmStreamMessage' -Namespace Win32 -PassThru
# $api::acmStreamMessage(has, uMsg, lParam1, lParam2)

#uselib "MSACM32.dll"
#func global acmStreamMessage "acmStreamMessage" sptr, sptr, sptr, sptr
; acmStreamMessage has, uMsg, lParam1, lParam2   ; 戻り値は stat
; has : HACMSTREAM -> "sptr"
; uMsg : DWORD -> "sptr"
; lParam1 : LPARAM -> "sptr"
; lParam2 : LPARAM -> "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 "MSACM32.dll"
#cfunc global acmStreamMessage "acmStreamMessage" sptr, int, sptr, sptr
; res = acmStreamMessage(has, uMsg, lParam1, lParam2)
; has : HACMSTREAM -> "sptr"
; uMsg : DWORD -> "int"
; lParam1 : LPARAM -> "sptr"
; lParam2 : LPARAM -> "sptr"

; DWORD acmStreamMessage(HACMSTREAM has, DWORD uMsg, LPARAM lParam1, LPARAM lParam2)
#uselib "MSACM32.dll"
#cfunc global acmStreamMessage "acmStreamMessage" intptr, int, intptr, intptr
; res = acmStreamMessage(has, uMsg, lParam1, lParam2)
; has : HACMSTREAM -> "intptr"
; uMsg : DWORD -> "int"
; lParam1 : LPARAM -> "intptr"
; lParam2 : LPARAM -> "intptr"

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

var (
	msacm32 = windows.NewLazySystemDLL("MSACM32.dll")
	procacmStreamMessage = msacm32.NewProc("acmStreamMessage")
)

// has (HACMSTREAM), uMsg (DWORD), lParam1 (LPARAM), lParam2 (LPARAM)
r1, _, err := procacmStreamMessage.Call(
	uintptr(has),
	uintptr(uMsg),
	uintptr(lParam1),
	uintptr(lParam2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function acmStreamMessage(
  has: THandle;   // HACMSTREAM
  uMsg: DWORD;   // DWORD
  lParam1: NativeInt;   // LPARAM
  lParam2: NativeInt   // LPARAM
): DWORD; stdcall;
  external 'MSACM32.dll' name 'acmStreamMessage';

result := DllCall("MSACM32\acmStreamMessage"
    , "Ptr", has   ; HACMSTREAM
    , "UInt", uMsg   ; DWORD
    , "Ptr", lParam1   ; LPARAM
    , "Ptr", lParam2   ; LPARAM
    , "UInt")   ; return: DWORD

●acmStreamMessage(has, uMsg, lParam1, lParam2) = DLL("MSACM32.dll", "dword acmStreamMessage(void*, dword, int, int)")
# 呼び出し: acmStreamMessage(has, uMsg, lParam1, lParam2)
# has : HACMSTREAM -> "void*"
# uMsg : DWORD -> "dword"
# lParam1 : LPARAM -> "int"
# lParam2 : LPARAM -> "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)。