waveOutGetDevCapsW

関数

波形オーディオ出力デバイスの機能を取得する(Unicode版)。

DLLWINMM.dll文字セットUnicode (-W)呼出規約winapi

シグネチャ

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

DWORD waveOutGetDevCapsW(
    UINT_PTR uDeviceID,
    WAVEOUTCAPSW* pwoc,
    DWORD cbwoc
);

パラメーター

名前	型	方向
uDeviceID	UINT_PTR	in
pwoc	WAVEOUTCAPSW*	out
cbwoc	DWORD	in

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD waveOutGetDevCapsW(
    UINT_PTR uDeviceID,
    WAVEOUTCAPSW* pwoc,
    DWORD cbwoc
);

[DllImport("WINMM.dll", CharSet = CharSet.Unicode, ExactSpelling = true)]
static extern uint waveOutGetDevCapsW(
    UIntPtr uDeviceID,   // UINT_PTR
    IntPtr pwoc,   // WAVEOUTCAPSW* out
    uint cbwoc   // DWORD
);

<DllImport("WINMM.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function waveOutGetDevCapsW(
    uDeviceID As UIntPtr,   ' UINT_PTR
    pwoc As IntPtr,   ' WAVEOUTCAPSW* out
    cbwoc As UInteger   ' DWORD
) As UInteger
End Function

' uDeviceID : UINT_PTR
' pwoc : WAVEOUTCAPSW* out
' cbwoc : DWORD
Declare PtrSafe Function waveOutGetDevCapsW Lib "winmm" ( _
    ByVal uDeviceID As LongPtr, _
    ByVal pwoc As LongPtr, _
    ByVal cbwoc 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

waveOutGetDevCapsW = ctypes.windll.winmm.waveOutGetDevCapsW
waveOutGetDevCapsW.restype = wintypes.DWORD
waveOutGetDevCapsW.argtypes = [
    ctypes.c_size_t,  # uDeviceID : UINT_PTR
    ctypes.c_void_p,  # pwoc : WAVEOUTCAPSW* out
    wintypes.DWORD,  # cbwoc : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
waveOutGetDevCapsW = Fiddle::Function.new(
  lib['waveOutGetDevCapsW'],
  [
    Fiddle::TYPE_UINTPTR_T,  # uDeviceID : UINT_PTR
    Fiddle::TYPE_VOIDP,  # pwoc : WAVEOUTCAPSW* out
    -Fiddle::TYPE_INT,  # cbwoc : DWORD
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winmm")]
extern "system" {
    fn waveOutGetDevCapsW(
        uDeviceID: usize,  // UINT_PTR
        pwoc: *mut WAVEOUTCAPSW,  // WAVEOUTCAPSW* out
        cbwoc: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINMM.dll", CharSet = CharSet.Unicode)]
public static extern uint waveOutGetDevCapsW(UIntPtr uDeviceID, IntPtr pwoc, uint cbwoc);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINMM_waveOutGetDevCapsW' -Namespace Win32 -PassThru
# $api::waveOutGetDevCapsW(uDeviceID, pwoc, cbwoc)

#uselib "WINMM.dll"
#func global waveOutGetDevCapsW "waveOutGetDevCapsW" wptr, wptr, wptr
; waveOutGetDevCapsW uDeviceID, varptr(pwoc), cbwoc   ; 戻り値は stat
; uDeviceID : UINT_PTR -> "wptr"
; pwoc : WAVEOUTCAPSW* out -> "wptr"
; cbwoc : 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。

出力引数:

#uselib "WINMM.dll"
#cfunc global waveOutGetDevCapsW "waveOutGetDevCapsW" sptr, var, int
; res = waveOutGetDevCapsW(uDeviceID, pwoc, cbwoc)
; uDeviceID : UINT_PTR -> "sptr"
; pwoc : WAVEOUTCAPSW* out -> "var"
; cbwoc : 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。#uselib "WINMM.dll"
#cfunc global waveOutGetDevCapsW "waveOutGetDevCapsW" sptr, sptr, int
; res = waveOutGetDevCapsW(uDeviceID, varptr(pwoc), cbwoc)
; uDeviceID : UINT_PTR -> "sptr"
; pwoc : WAVEOUTCAPSW* out -> "sptr"
; cbwoc : DWORD -> "int"
; ※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 waveOutGetDevCapsW(UINT_PTR uDeviceID, WAVEOUTCAPSW* pwoc, DWORD cbwoc)
#uselib "WINMM.dll"
#cfunc global waveOutGetDevCapsW "waveOutGetDevCapsW" intptr, var, int
; res = waveOutGetDevCapsW(uDeviceID, pwoc, cbwoc)
; uDeviceID : UINT_PTR -> "intptr"
; pwoc : WAVEOUTCAPSW* out -> "var"
; cbwoc : 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 waveOutGetDevCapsW(UINT_PTR uDeviceID, WAVEOUTCAPSW* pwoc, DWORD cbwoc)
#uselib "WINMM.dll"
#cfunc global waveOutGetDevCapsW "waveOutGetDevCapsW" intptr, intptr, int
; res = waveOutGetDevCapsW(uDeviceID, varptr(pwoc), cbwoc)
; uDeviceID : UINT_PTR -> "intptr"
; pwoc : WAVEOUTCAPSW* out -> "intptr"
; cbwoc : DWORD -> "int"
; ※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")
	procwaveOutGetDevCapsW = winmm.NewProc("waveOutGetDevCapsW")
)

// uDeviceID (UINT_PTR), pwoc (WAVEOUTCAPSW* out), cbwoc (DWORD)
r1, _, err := procwaveOutGetDevCapsW.Call(
	uintptr(uDeviceID),
	uintptr(pwoc),
	uintptr(cbwoc),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function waveOutGetDevCapsW(
  uDeviceID: NativeUInt;   // UINT_PTR
  pwoc: Pointer;   // WAVEOUTCAPSW* out
  cbwoc: DWORD   // DWORD
): DWORD; stdcall;
  external 'WINMM.dll' name 'waveOutGetDevCapsW';

result := DllCall("WINMM\waveOutGetDevCapsW"
    , "UPtr", uDeviceID   ; UINT_PTR
    , "Ptr", pwoc   ; WAVEOUTCAPSW* out
    , "UInt", cbwoc   ; DWORD
    , "UInt")   ; return: DWORD

●waveOutGetDevCapsW(uDeviceID, pwoc, cbwoc) = DLL("WINMM.dll", "dword waveOutGetDevCapsW(int, void*, dword)")
# 呼び出し: waveOutGetDevCapsW(uDeviceID, pwoc, cbwoc)
# uDeviceID : UINT_PTR -> "int"
# pwoc : WAVEOUTCAPSW* out -> "void*"
# cbwoc : 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。