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waveOutGetErrorTextA

関数

波形出力エラーコードに対応する説明文を取得する(ANSI版)。

DLLWINMM.dll文字セットANSI (-A)呼出規約winapi

シグネチャ

// WINMM.dll  (ANSI / -A)
#include <windows.h>

DWORD waveOutGetErrorTextA(
    DWORD mmrError,
    LPSTR pszText,
    DWORD cchText
);

パラメーター

名前	型	方向
mmrError	DWORD	in
pszText	LPSTR	out
cchText	DWORD	in

戻り値の型: DWORD

各言語での呼び出し定義

// WINMM.dll  (ANSI / -A)
#include <windows.h>

DWORD waveOutGetErrorTextA(
    DWORD mmrError,
    LPSTR pszText,
    DWORD cchText
);

[DllImport("WINMM.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern uint waveOutGetErrorTextA(
    uint mmrError,   // DWORD
    [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder pszText,   // LPSTR out
    uint cchText   // DWORD
);

<DllImport("WINMM.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function waveOutGetErrorTextA(
    mmrError As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> pszText As System.Text.StringBuilder,   ' LPSTR out
    cchText As UInteger   ' DWORD
) As UInteger
End Function

' mmrError : DWORD
' pszText : LPSTR out
' cchText : DWORD
Declare PtrSafe Function waveOutGetErrorTextA Lib "winmm" ( _
    ByVal mmrError As Long, _
    ByVal pszText As String, _
    ByVal cchText 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

waveOutGetErrorTextA = ctypes.windll.winmm.waveOutGetErrorTextA
waveOutGetErrorTextA.restype = wintypes.DWORD
waveOutGetErrorTextA.argtypes = [
    wintypes.DWORD,  # mmrError : DWORD
    wintypes.LPSTR,  # pszText : LPSTR out
    wintypes.DWORD,  # cchText : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINMM.dll')
waveOutGetErrorTextA = Fiddle::Function.new(
  lib['waveOutGetErrorTextA'],
  [
    -Fiddle::TYPE_INT,  # mmrError : DWORD
    Fiddle::TYPE_VOIDP,  # pszText : LPSTR out
    -Fiddle::TYPE_INT,  # cchText : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "winmm")]
extern "system" {
    fn waveOutGetErrorTextA(
        mmrError: u32,  // DWORD
        pszText: *mut u8,  // LPSTR out
        cchText: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINMM.dll", CharSet = CharSet.Ansi)]
public static extern uint waveOutGetErrorTextA(uint mmrError, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder pszText, uint cchText);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINMM_waveOutGetErrorTextA' -Namespace Win32 -PassThru
# $api::waveOutGetErrorTextA(mmrError, pszText, cchText)

#uselib "WINMM.dll"
#func global waveOutGetErrorTextA "waveOutGetErrorTextA" sptr, sptr, sptr
; waveOutGetErrorTextA mmrError, varptr(pszText), cchText   ; 戻り値は stat
; mmrError : DWORD -> "sptr"
; pszText : LPSTR out -> "sptr"
; cchText : 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。

出力引数:

#uselib "WINMM.dll"
#cfunc global waveOutGetErrorTextA "waveOutGetErrorTextA" int, var, int
; res = waveOutGetErrorTextA(mmrError, pszText, cchText)
; mmrError : DWORD -> "int"
; pszText : LPSTR out -> "var"
; cchText : 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 waveOutGetErrorTextA "waveOutGetErrorTextA" int, sptr, int
; res = waveOutGetErrorTextA(mmrError, varptr(pszText), cchText)
; mmrError : DWORD -> "int"
; pszText : LPSTR out -> "sptr"
; cchText : 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 waveOutGetErrorTextA(DWORD mmrError, LPSTR pszText, DWORD cchText)
#uselib "WINMM.dll"
#cfunc global waveOutGetErrorTextA "waveOutGetErrorTextA" int, var, int
; res = waveOutGetErrorTextA(mmrError, pszText, cchText)
; mmrError : DWORD -> "int"
; pszText : LPSTR out -> "var"
; cchText : 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 waveOutGetErrorTextA(DWORD mmrError, LPSTR pszText, DWORD cchText)
#uselib "WINMM.dll"
#cfunc global waveOutGetErrorTextA "waveOutGetErrorTextA" int, intptr, int
; res = waveOutGetErrorTextA(mmrError, varptr(pszText), cchText)
; mmrError : DWORD -> "int"
; pszText : LPSTR out -> "intptr"
; cchText : 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")
	procwaveOutGetErrorTextA = winmm.NewProc("waveOutGetErrorTextA")
)

// mmrError (DWORD), pszText (LPSTR out), cchText (DWORD)
r1, _, err := procwaveOutGetErrorTextA.Call(
	uintptr(mmrError),
	uintptr(pszText),
	uintptr(cchText),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function waveOutGetErrorTextA(
  mmrError: DWORD;   // DWORD
  pszText: PAnsiChar;   // LPSTR out
  cchText: DWORD   // DWORD
): DWORD; stdcall;
  external 'WINMM.dll' name 'waveOutGetErrorTextA';

result := DllCall("WINMM\waveOutGetErrorTextA"
    , "UInt", mmrError   ; DWORD
    , "Ptr", pszText   ; LPSTR out
    , "UInt", cchText   ; DWORD
    , "UInt")   ; return: DWORD

●waveOutGetErrorTextA(mmrError, pszText, cchText) = DLL("WINMM.dll", "dword waveOutGetErrorTextA(dword, char*, dword)")
# 呼び出し: waveOutGetErrorTextA(mmrError, pszText, cchText)
# mmrError : DWORD -> "dword"
# pszText : LPSTR out -> "char*"
# cchText : 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)。