RegEnumValueA

関数

指定キー配下の値をインデックス指定で列挙する。

DLLADVAPI32.dll文字セットANSI (-A)呼出規約winapi対応OSWindows 2000 以降

シグネチャ

// ADVAPI32.dll  (ANSI / -A)
#include <windows.h>

WIN32_ERROR RegEnumValueA(
    HKEY hKey,
    DWORD dwIndex,
    LPSTR lpValueName,   // optional
    DWORD* lpcchValueName,
    DWORD* lpReserved,   // optional
    DWORD* lpType,   // optional
    BYTE* lpData,   // optional
    DWORD* lpcbData   // optional
);

パラメーター

名前	型	方向
hKey	HKEY	in
dwIndex	DWORD	in
lpValueName	LPSTR	outoptional
lpcchValueName	DWORD*	inout
lpReserved	DWORD*	optional
lpType	DWORD*	outoptional
lpData	BYTE*	outoptional
lpcbData	DWORD*	inoutoptional

戻り値の型: WIN32_ERROR

各言語での呼び出し定義

// ADVAPI32.dll  (ANSI / -A)
#include <windows.h>

WIN32_ERROR RegEnumValueA(
    HKEY hKey,
    DWORD dwIndex,
    LPSTR lpValueName,   // optional
    DWORD* lpcchValueName,
    DWORD* lpReserved,   // optional
    DWORD* lpType,   // optional
    BYTE* lpData,   // optional
    DWORD* lpcbData   // optional
);

[DllImport("ADVAPI32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern uint RegEnumValueA(
    IntPtr hKey,   // HKEY
    uint dwIndex,   // DWORD
    [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpValueName,   // LPSTR optional, out
    ref uint lpcchValueName,   // DWORD* in/out
    IntPtr lpReserved,   // DWORD* optional
    IntPtr lpType,   // DWORD* optional, out
    IntPtr lpData,   // BYTE* optional, out
    IntPtr lpcbData   // DWORD* optional, in/out
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function RegEnumValueA(
    hKey As IntPtr,   ' HKEY
    dwIndex As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> lpValueName As System.Text.StringBuilder,   ' LPSTR optional, out
    ByRef lpcchValueName As UInteger,   ' DWORD* in/out
    lpReserved As IntPtr,   ' DWORD* optional
    lpType As IntPtr,   ' DWORD* optional, out
    lpData As IntPtr,   ' BYTE* optional, out
    lpcbData As IntPtr   ' DWORD* optional, in/out
) As UInteger
End Function

' hKey : HKEY
' dwIndex : DWORD
' lpValueName : LPSTR optional, out
' lpcchValueName : DWORD* in/out
' lpReserved : DWORD* optional
' lpType : DWORD* optional, out
' lpData : BYTE* optional, out
' lpcbData : DWORD* optional, in/out
Declare PtrSafe Function RegEnumValueA Lib "advapi32" ( _
    ByVal hKey As LongPtr, _
    ByVal dwIndex As Long, _
    ByVal lpValueName As String, _
    ByRef lpcchValueName As Long, _
    ByVal lpReserved As LongPtr, _
    ByVal lpType As LongPtr, _
    ByVal lpData As LongPtr, _
    ByVal lpcbData As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

RegEnumValueA = ctypes.windll.advapi32.RegEnumValueA
RegEnumValueA.restype = wintypes.DWORD
RegEnumValueA.argtypes = [
    wintypes.HANDLE,  # hKey : HKEY
    wintypes.DWORD,  # dwIndex : DWORD
    wintypes.LPSTR,  # lpValueName : LPSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # lpcchValueName : DWORD* in/out
    ctypes.POINTER(wintypes.DWORD),  # lpReserved : DWORD* optional
    ctypes.POINTER(wintypes.DWORD),  # lpType : DWORD* optional, out
    ctypes.POINTER(ctypes.c_ubyte),  # lpData : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # lpcbData : DWORD* optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
RegEnumValueA = Fiddle::Function.new(
  lib['RegEnumValueA'],
  [
    Fiddle::TYPE_VOIDP,  # hKey : HKEY
    -Fiddle::TYPE_INT,  # dwIndex : DWORD
    Fiddle::TYPE_VOIDP,  # lpValueName : LPSTR optional, out
    Fiddle::TYPE_VOIDP,  # lpcchValueName : DWORD* in/out
    Fiddle::TYPE_VOIDP,  # lpReserved : DWORD* optional
    Fiddle::TYPE_VOIDP,  # lpType : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # lpData : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # lpcbData : DWORD* optional, in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn RegEnumValueA(
        hKey: *mut core::ffi::c_void,  // HKEY
        dwIndex: u32,  // DWORD
        lpValueName: *mut u8,  // LPSTR optional, out
        lpcchValueName: *mut u32,  // DWORD* in/out
        lpReserved: *mut u32,  // DWORD* optional
        lpType: *mut u32,  // DWORD* optional, out
        lpData: *mut u8,  // BYTE* optional, out
        lpcbData: *mut u32  // DWORD* optional, in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVAPI32.dll", CharSet = CharSet.Ansi)]
public static extern uint RegEnumValueA(IntPtr hKey, uint dwIndex, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder lpValueName, ref uint lpcchValueName, IntPtr lpReserved, IntPtr lpType, IntPtr lpData, IntPtr lpcbData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_RegEnumValueA' -Namespace Win32 -PassThru
# $api::RegEnumValueA(hKey, dwIndex, lpValueName, lpcchValueName, lpReserved, lpType, lpData, lpcbData)

#uselib "ADVAPI32.dll"
#func global RegEnumValueA "RegEnumValueA" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; RegEnumValueA hKey, dwIndex, varptr(lpValueName), varptr(lpcchValueName), varptr(lpReserved), varptr(lpType), varptr(lpData), varptr(lpcbData)   ; 戻り値は stat
; hKey : HKEY -> "sptr"
; dwIndex : DWORD -> "sptr"
; lpValueName : LPSTR optional, out -> "sptr"
; lpcchValueName : DWORD* in/out -> "sptr"
; lpReserved : DWORD* optional -> "sptr"
; lpType : DWORD* optional, out -> "sptr"
; lpData : BYTE* optional, out -> "sptr"
; lpcbData : DWORD* optional, in/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 "ADVAPI32.dll"
#cfunc global RegEnumValueA "RegEnumValueA" sptr, int, var, var, var, var, var, var
; res = RegEnumValueA(hKey, dwIndex, lpValueName, lpcchValueName, lpReserved, lpType, lpData, lpcbData)
; hKey : HKEY -> "sptr"
; dwIndex : DWORD -> "int"
; lpValueName : LPSTR optional, out -> "var"
; lpcchValueName : DWORD* in/out -> "var"
; lpReserved : DWORD* optional -> "var"
; lpType : DWORD* optional, out -> "var"
; lpData : BYTE* optional, out -> "var"
; lpcbData : DWORD* optional, in/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 "ADVAPI32.dll"
#cfunc global RegEnumValueA "RegEnumValueA" sptr, int, sptr, sptr, sptr, sptr, sptr, sptr
; res = RegEnumValueA(hKey, dwIndex, varptr(lpValueName), varptr(lpcchValueName), varptr(lpReserved), varptr(lpType), varptr(lpData), varptr(lpcbData))
; hKey : HKEY -> "sptr"
; dwIndex : DWORD -> "int"
; lpValueName : LPSTR optional, out -> "sptr"
; lpcchValueName : DWORD* in/out -> "sptr"
; lpReserved : DWORD* optional -> "sptr"
; lpType : DWORD* optional, out -> "sptr"
; lpData : BYTE* optional, out -> "sptr"
; lpcbData : DWORD* optional, in/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:

; WIN32_ERROR RegEnumValueA(HKEY hKey, DWORD dwIndex, LPSTR lpValueName, DWORD* lpcchValueName, DWORD* lpReserved, DWORD* lpType, BYTE* lpData, DWORD* lpcbData)
#uselib "ADVAPI32.dll"
#cfunc global RegEnumValueA "RegEnumValueA" intptr, int, var, var, var, var, var, var
; res = RegEnumValueA(hKey, dwIndex, lpValueName, lpcchValueName, lpReserved, lpType, lpData, lpcbData)
; hKey : HKEY -> "intptr"
; dwIndex : DWORD -> "int"
; lpValueName : LPSTR optional, out -> "var"
; lpcchValueName : DWORD* in/out -> "var"
; lpReserved : DWORD* optional -> "var"
; lpType : DWORD* optional, out -> "var"
; lpData : BYTE* optional, out -> "var"
; lpcbData : DWORD* optional, in/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。; WIN32_ERROR RegEnumValueA(HKEY hKey, DWORD dwIndex, LPSTR lpValueName, DWORD* lpcchValueName, DWORD* lpReserved, DWORD* lpType, BYTE* lpData, DWORD* lpcbData)
#uselib "ADVAPI32.dll"
#cfunc global RegEnumValueA "RegEnumValueA" intptr, int, intptr, intptr, intptr, intptr, intptr, intptr
; res = RegEnumValueA(hKey, dwIndex, varptr(lpValueName), varptr(lpcchValueName), varptr(lpReserved), varptr(lpType), varptr(lpData), varptr(lpcbData))
; hKey : HKEY -> "intptr"
; dwIndex : DWORD -> "int"
; lpValueName : LPSTR optional, out -> "intptr"
; lpcchValueName : DWORD* in/out -> "intptr"
; lpReserved : DWORD* optional -> "intptr"
; lpType : DWORD* optional, out -> "intptr"
; lpData : BYTE* optional, out -> "intptr"
; lpcbData : DWORD* optional, in/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 (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procRegEnumValueA = advapi32.NewProc("RegEnumValueA")
)

// hKey (HKEY), dwIndex (DWORD), lpValueName (LPSTR optional, out), lpcchValueName (DWORD* in/out), lpReserved (DWORD* optional), lpType (DWORD* optional, out), lpData (BYTE* optional, out), lpcbData (DWORD* optional, in/out)
r1, _, err := procRegEnumValueA.Call(
	uintptr(hKey),
	uintptr(dwIndex),
	uintptr(lpValueName),
	uintptr(lpcchValueName),
	uintptr(lpReserved),
	uintptr(lpType),
	uintptr(lpData),
	uintptr(lpcbData),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function RegEnumValueA(
  hKey: THandle;   // HKEY
  dwIndex: DWORD;   // DWORD
  lpValueName: PAnsiChar;   // LPSTR optional, out
  lpcchValueName: Pointer;   // DWORD* in/out
  lpReserved: Pointer;   // DWORD* optional
  lpType: Pointer;   // DWORD* optional, out
  lpData: Pointer;   // BYTE* optional, out
  lpcbData: Pointer   // DWORD* optional, in/out
): DWORD; stdcall;
  external 'ADVAPI32.dll' name 'RegEnumValueA';

result := DllCall("ADVAPI32\RegEnumValueA"
    , "Ptr", hKey   ; HKEY
    , "UInt", dwIndex   ; DWORD
    , "Ptr", lpValueName   ; LPSTR optional, out
    , "Ptr", lpcchValueName   ; DWORD* in/out
    , "Ptr", lpReserved   ; DWORD* optional
    , "Ptr", lpType   ; DWORD* optional, out
    , "Ptr", lpData   ; BYTE* optional, out
    , "Ptr", lpcbData   ; DWORD* optional, in/out
    , "UInt")   ; return: WIN32_ERROR

●RegEnumValueA(hKey, dwIndex, lpValueName, lpcchValueName, lpReserved, lpType, lpData, lpcbData) = DLL("ADVAPI32.dll", "dword RegEnumValueA(void*, dword, char*, void*, void*, void*, void*, void*)")
# 呼び出し: RegEnumValueA(hKey, dwIndex, lpValueName, lpcchValueName, lpReserved, lpType, lpData, lpcbData)
# hKey : HKEY -> "void*"
# dwIndex : DWORD -> "dword"
# lpValueName : LPSTR optional, out -> "char*"
# lpcchValueName : DWORD* in/out -> "void*"
# lpReserved : DWORD* optional -> "void*"
# lpType : DWORD* optional, out -> "void*"
# lpData : BYTE* optional, out -> "void*"
# lpcbData : DWORD* optional, in/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)。