midiOutGetID

関数

MIDI出力デバイスハンドルからデバイスIDを取得する。

DLLWINMM.dll呼出規約winapi対応OSWindows 2000 以降

シグネチャ

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

DWORD midiOutGetID(
    HMIDIOUT hmo,
    DWORD* puDeviceID
);

パラメーター

名前	型	方向
hmo	HMIDIOUT	in
puDeviceID	DWORD*	out

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD midiOutGetID(
    HMIDIOUT hmo,
    DWORD* puDeviceID
);

[DllImport("WINMM.dll", ExactSpelling = true)]
static extern uint midiOutGetID(
    IntPtr hmo,   // HMIDIOUT
    out uint puDeviceID   // DWORD* out
);

<DllImport("WINMM.dll", ExactSpelling:=True)>
Public Shared Function midiOutGetID(
    hmo As IntPtr,   ' HMIDIOUT
    <Out> ByRef puDeviceID As UInteger   ' DWORD* out
) As UInteger
End Function

' hmo : HMIDIOUT
' puDeviceID : DWORD* out
Declare PtrSafe Function midiOutGetID Lib "winmm" ( _
    ByVal hmo As LongPtr, _
    ByRef puDeviceID 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

midiOutGetID = ctypes.windll.winmm.midiOutGetID
midiOutGetID.restype = wintypes.DWORD
midiOutGetID.argtypes = [
    wintypes.HANDLE,  # hmo : HMIDIOUT
    ctypes.POINTER(wintypes.DWORD),  # puDeviceID : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
midiOutGetID = Fiddle::Function.new(
  lib['midiOutGetID'],
  [
    Fiddle::TYPE_VOIDP,  # hmo : HMIDIOUT
    Fiddle::TYPE_VOIDP,  # puDeviceID : DWORD* out
  ],
  -Fiddle::TYPE_INT)

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

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

#uselib "WINMM.dll"
#func global midiOutGetID "midiOutGetID" sptr, sptr
; midiOutGetID hmo, varptr(puDeviceID)   ; 戻り値は stat
; hmo : HMIDIOUT -> "sptr"
; puDeviceID : 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。

出力引数:

#uselib "WINMM.dll"
#cfunc global midiOutGetID "midiOutGetID" sptr, var
; res = midiOutGetID(hmo, puDeviceID)
; hmo : HMIDIOUT -> "sptr"
; puDeviceID : DWORD* out -> "var"
; ※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。#uselib "WINMM.dll"
#cfunc global midiOutGetID "midiOutGetID" sptr, sptr
; res = midiOutGetID(hmo, varptr(puDeviceID))
; hmo : HMIDIOUT -> "sptr"
; puDeviceID : DWORD* out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; DWORD midiOutGetID(HMIDIOUT hmo, DWORD* puDeviceID)
#uselib "WINMM.dll"
#cfunc global midiOutGetID "midiOutGetID" intptr, var
; res = midiOutGetID(hmo, puDeviceID)
; hmo : HMIDIOUT -> "intptr"
; puDeviceID : DWORD* out -> "var"
; ※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 midiOutGetID(HMIDIOUT hmo, DWORD* puDeviceID)
#uselib "WINMM.dll"
#cfunc global midiOutGetID "midiOutGetID" intptr, intptr
; res = midiOutGetID(hmo, varptr(puDeviceID))
; hmo : HMIDIOUT -> "intptr"
; puDeviceID : DWORD* out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	winmm = windows.NewLazySystemDLL("WINMM.dll")
	procmidiOutGetID = winmm.NewProc("midiOutGetID")
)

// hmo (HMIDIOUT), puDeviceID (DWORD* out)
r1, _, err := procmidiOutGetID.Call(
	uintptr(hmo),
	uintptr(puDeviceID),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function midiOutGetID(
  hmo: THandle;   // HMIDIOUT
  puDeviceID: Pointer   // DWORD* out
): DWORD; stdcall;
  external 'WINMM.dll' name 'midiOutGetID';

result := DllCall("WINMM\midiOutGetID"
    , "Ptr", hmo   ; HMIDIOUT
    , "Ptr", puDeviceID   ; DWORD* out
    , "UInt")   ; return: DWORD

●midiOutGetID(hmo, puDeviceID) = DLL("WINMM.dll", "dword midiOutGetID(void*, void*)")
# 呼び出し: midiOutGetID(hmo, puDeviceID)
# hmo : HMIDIOUT -> "void*"
# puDeviceID : 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)。