mixerGetLineControlsW

// WINMM.dll  (Unicode / -W)
#include <windows.h>

DWORD mixerGetLineControlsW(
    HMIXEROBJ hmxobj,   // optional
    MIXERLINECONTROLSW* pmxlc,
    DWORD fdwControls
);

<DllImport("WINMM.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function mixerGetLineControlsW(
    hmxobj As IntPtr,   ' HMIXEROBJ optional
    pmxlc As IntPtr,   ' MIXERLINECONTROLSW* in/out
    fdwControls As UInteger   ' DWORD
) As UInteger
End Function

' hmxobj : HMIXEROBJ optional
' pmxlc : MIXERLINECONTROLSW* in/out
' fdwControls : DWORD
Declare PtrSafe Function mixerGetLineControlsW Lib "winmm" ( _
    ByVal hmxobj As LongPtr, _
    ByVal pmxlc As LongPtr, _
    ByVal fdwControls As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

mixerGetLineControlsW = ctypes.windll.winmm.mixerGetLineControlsW
mixerGetLineControlsW.restype = wintypes.DWORD
mixerGetLineControlsW.argtypes = [
    wintypes.HANDLE,  # hmxobj : HMIXEROBJ optional
    ctypes.c_void_p,  # pmxlc : MIXERLINECONTROLSW* in/out
    wintypes.DWORD,  # fdwControls : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
mixerGetLineControlsW = Fiddle::Function.new(
  lib['mixerGetLineControlsW'],
  [
    Fiddle::TYPE_VOIDP,  # hmxobj : HMIXEROBJ optional
    Fiddle::TYPE_VOIDP,  # pmxlc : MIXERLINECONTROLSW* in/out
    -Fiddle::TYPE_INT,  # fdwControls : DWORD
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winmm")]
extern "system" {
    fn mixerGetLineControlsW(
        hmxobj: *mut core::ffi::c_void,  // HMIXEROBJ optional
        pmxlc: *mut MIXERLINECONTROLSW,  // MIXERLINECONTROLSW* in/out
        fdwControls: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINMM.dll", CharSet = CharSet.Unicode)]
public static extern uint mixerGetLineControlsW(IntPtr hmxobj, IntPtr pmxlc, uint fdwControls);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINMM_mixerGetLineControlsW' -Namespace Win32 -PassThru
# $api::mixerGetLineControlsW(hmxobj, pmxlc, fdwControls)

#uselib "WINMM.dll"
#func global mixerGetLineControlsW "mixerGetLineControlsW" wptr, wptr, wptr
; mixerGetLineControlsW hmxobj, varptr(pmxlc), fdwControls   ; 戻り値は stat
; hmxobj : HMIXEROBJ optional -> "wptr"
; pmxlc : MIXERLINECONTROLSW* in/out -> "wptr"
; fdwControls : DWORD -> "wptr"
; ※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 mixerGetLineControlsW "mixerGetLineControlsW" sptr, var, int
; res = mixerGetLineControlsW(hmxobj, pmxlc, fdwControls)
; hmxobj : HMIXEROBJ optional -> "sptr"
; pmxlc : MIXERLINECONTROLSW* in/out -> "var"
; fdwControls : DWORD -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; DWORD mixerGetLineControlsW(HMIXEROBJ hmxobj, MIXERLINECONTROLSW* pmxlc, DWORD fdwControls)
#uselib "WINMM.dll"
#cfunc global mixerGetLineControlsW "mixerGetLineControlsW" intptr, var, int
; res = mixerGetLineControlsW(hmxobj, pmxlc, fdwControls)
; hmxobj : HMIXEROBJ optional -> "intptr"
; pmxlc : MIXERLINECONTROLSW* in/out -> "var"
; fdwControls : DWORD -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	winmm = windows.NewLazySystemDLL("WINMM.dll")
	procmixerGetLineControlsW = winmm.NewProc("mixerGetLineControlsW")
)

// hmxobj (HMIXEROBJ optional), pmxlc (MIXERLINECONTROLSW* in/out), fdwControls (DWORD)
r1, _, err := procmixerGetLineControlsW.Call(
	uintptr(hmxobj),
	uintptr(pmxlc),
	uintptr(fdwControls),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function mixerGetLineControlsW(
  hmxobj: THandle;   // HMIXEROBJ optional
  pmxlc: Pointer;   // MIXERLINECONTROLSW* in/out
  fdwControls: DWORD   // DWORD
): DWORD; stdcall;
  external 'WINMM.dll' name 'mixerGetLineControlsW';

result := DllCall("WINMM\mixerGetLineControlsW"
    , "Ptr", hmxobj   ; HMIXEROBJ optional
    , "Ptr", pmxlc   ; MIXERLINECONTROLSW* in/out
    , "UInt", fdwControls   ; DWORD
    , "UInt")   ; return: DWORD

●mixerGetLineControlsW(hmxobj, pmxlc, fdwControls) = DLL("WINMM.dll", "dword mixerGetLineControlsW(void*, void*, dword)")
# 呼び出し: mixerGetLineControlsW(hmxobj, pmxlc, fdwControls)
# hmxobj : HMIXEROBJ optional -> "void*"
# pmxlc : MIXERLINECONTROLSW* in/out -> "void*"
# fdwControls : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。