midiStreamPosition

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

DWORD midiStreamPosition(
    HMIDISTRM hms,
    MMTIME* lpmmt,
    DWORD cbmmt
);

<DllImport("WINMM.dll", ExactSpelling:=True)>
Public Shared Function midiStreamPosition(
    hms As IntPtr,   ' HMIDISTRM
    lpmmt As IntPtr,   ' MMTIME* out
    cbmmt As UInteger   ' DWORD
) As UInteger
End Function

' hms : HMIDISTRM
' lpmmt : MMTIME* out
' cbmmt : DWORD
Declare PtrSafe Function midiStreamPosition Lib "winmm" ( _
    ByVal hms As LongPtr, _
    ByVal lpmmt As LongPtr, _
    ByVal cbmmt 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

midiStreamPosition = ctypes.windll.winmm.midiStreamPosition
midiStreamPosition.restype = wintypes.DWORD
midiStreamPosition.argtypes = [
    wintypes.HANDLE,  # hms : HMIDISTRM
    ctypes.c_void_p,  # lpmmt : MMTIME* out
    wintypes.DWORD,  # cbmmt : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
midiStreamPosition = Fiddle::Function.new(
  lib['midiStreamPosition'],
  [
    Fiddle::TYPE_VOIDP,  # hms : HMIDISTRM
    Fiddle::TYPE_VOIDP,  # lpmmt : MMTIME* out
    -Fiddle::TYPE_INT,  # cbmmt : DWORD
  ],
  -Fiddle::TYPE_INT)

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

$sig = @"
[DllImport("WINMM.dll")]
public static extern uint midiStreamPosition(IntPtr hms, IntPtr lpmmt, uint cbmmt);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINMM_midiStreamPosition' -Namespace Win32 -PassThru
# $api::midiStreamPosition(hms, lpmmt, cbmmt)

#uselib "WINMM.dll"
#func global midiStreamPosition "midiStreamPosition" sptr, sptr, sptr
; midiStreamPosition hms, varptr(lpmmt), cbmmt   ; 戻り値は stat
; hms : HMIDISTRM -> "sptr"
; lpmmt : MMTIME* out -> "sptr"
; cbmmt : 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。

#uselib "WINMM.dll"
#cfunc global midiStreamPosition "midiStreamPosition" sptr, var, int
; res = midiStreamPosition(hms, lpmmt, cbmmt)
; hms : HMIDISTRM -> "sptr"
; lpmmt : MMTIME* out -> "var"
; cbmmt : 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 midiStreamPosition(HMIDISTRM hms, MMTIME* lpmmt, DWORD cbmmt)
#uselib "WINMM.dll"
#cfunc global midiStreamPosition "midiStreamPosition" intptr, var, int
; res = midiStreamPosition(hms, lpmmt, cbmmt)
; hms : HMIDISTRM -> "intptr"
; lpmmt : MMTIME* out -> "var"
; cbmmt : 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")
	procmidiStreamPosition = winmm.NewProc("midiStreamPosition")
)

// hms (HMIDISTRM), lpmmt (MMTIME* out), cbmmt (DWORD)
r1, _, err := procmidiStreamPosition.Call(
	uintptr(hms),
	uintptr(lpmmt),
	uintptr(cbmmt),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function midiStreamPosition(
  hms: THandle;   // HMIDISTRM
  lpmmt: Pointer;   // MMTIME* out
  cbmmt: DWORD   // DWORD
): DWORD; stdcall;
  external 'WINMM.dll' name 'midiStreamPosition';

result := DllCall("WINMM\midiStreamPosition"
    , "Ptr", hms   ; HMIDISTRM
    , "Ptr", lpmmt   ; MMTIME* out
    , "UInt", cbmmt   ; DWORD
    , "UInt")   ; return: DWORD

●midiStreamPosition(hms, lpmmt, cbmmt) = DLL("WINMM.dll", "dword midiStreamPosition(void*, void*, dword)")
# 呼び出し: midiStreamPosition(hms, lpmmt, cbmmt)
# hms : HMIDISTRM -> "void*"
# lpmmt : MMTIME* out -> "void*"
# cbmmt : 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)。