DeviceIoControl

関数

デバイスドライバに制御コードを送って操作する。

DLLKERNEL32.dll呼出規約winapiSetLastErrorあり対応OSWindows XP 以降

シグネチャ

// KERNEL32.dll
#include <windows.h>

BOOL DeviceIoControl(
    HANDLE hDevice,
    DWORD dwIoControlCode,
    void* lpInBuffer,   // optional
    DWORD nInBufferSize,
    void* lpOutBuffer,   // optional
    DWORD nOutBufferSize,
    DWORD* lpBytesReturned,   // optional
    OVERLAPPED* lpOverlapped   // optional
);

パラメーター

名前	型	方向
hDevice	HANDLE	in
dwIoControlCode	DWORD	in
lpInBuffer	void*	inoptional
nInBufferSize	DWORD	in
lpOutBuffer	void*	outoptional
nOutBufferSize	DWORD	in
lpBytesReturned	DWORD*	outoptional
lpOverlapped	OVERLAPPED*	inoutoptional

戻り値の型: BOOL

各言語での呼び出し定義

// KERNEL32.dll
#include <windows.h>

BOOL DeviceIoControl(
    HANDLE hDevice,
    DWORD dwIoControlCode,
    void* lpInBuffer,   // optional
    DWORD nInBufferSize,
    void* lpOutBuffer,   // optional
    DWORD nOutBufferSize,
    DWORD* lpBytesReturned,   // optional
    OVERLAPPED* lpOverlapped   // optional
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool DeviceIoControl(
    IntPtr hDevice,   // HANDLE
    uint dwIoControlCode,   // DWORD
    IntPtr lpInBuffer,   // void* optional
    uint nInBufferSize,   // DWORD
    IntPtr lpOutBuffer,   // void* optional, out
    uint nOutBufferSize,   // DWORD
    IntPtr lpBytesReturned,   // DWORD* optional, out
    IntPtr lpOverlapped   // OVERLAPPED* optional, in/out
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DeviceIoControl(
    hDevice As IntPtr,   ' HANDLE
    dwIoControlCode As UInteger,   ' DWORD
    lpInBuffer As IntPtr,   ' void* optional
    nInBufferSize As UInteger,   ' DWORD
    lpOutBuffer As IntPtr,   ' void* optional, out
    nOutBufferSize As UInteger,   ' DWORD
    lpBytesReturned As IntPtr,   ' DWORD* optional, out
    lpOverlapped As IntPtr   ' OVERLAPPED* optional, in/out
) As Boolean
End Function

' hDevice : HANDLE
' dwIoControlCode : DWORD
' lpInBuffer : void* optional
' nInBufferSize : DWORD
' lpOutBuffer : void* optional, out
' nOutBufferSize : DWORD
' lpBytesReturned : DWORD* optional, out
' lpOverlapped : OVERLAPPED* optional, in/out
Declare PtrSafe Function DeviceIoControl Lib "kernel32" ( _
    ByVal hDevice As LongPtr, _
    ByVal dwIoControlCode As Long, _
    ByVal lpInBuffer As LongPtr, _
    ByVal nInBufferSize As Long, _
    ByVal lpOutBuffer As LongPtr, _
    ByVal nOutBufferSize As Long, _
    ByVal lpBytesReturned As LongPtr, _
    ByVal lpOverlapped 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

DeviceIoControl = ctypes.windll.kernel32.DeviceIoControl
DeviceIoControl.restype = wintypes.BOOL
DeviceIoControl.argtypes = [
    wintypes.HANDLE,  # hDevice : HANDLE
    wintypes.DWORD,  # dwIoControlCode : DWORD
    ctypes.POINTER(None),  # lpInBuffer : void* optional
    wintypes.DWORD,  # nInBufferSize : DWORD
    ctypes.POINTER(None),  # lpOutBuffer : void* optional, out
    wintypes.DWORD,  # nOutBufferSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # lpBytesReturned : DWORD* optional, out
    ctypes.c_void_p,  # lpOverlapped : OVERLAPPED* optional, in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
DeviceIoControl = Fiddle::Function.new(
  lib['DeviceIoControl'],
  [
    Fiddle::TYPE_VOIDP,  # hDevice : HANDLE
    -Fiddle::TYPE_INT,  # dwIoControlCode : DWORD
    Fiddle::TYPE_VOIDP,  # lpInBuffer : void* optional
    -Fiddle::TYPE_INT,  # nInBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # lpOutBuffer : void* optional, out
    -Fiddle::TYPE_INT,  # nOutBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # lpBytesReturned : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # lpOverlapped : OVERLAPPED* optional, in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn DeviceIoControl(
        hDevice: *mut core::ffi::c_void,  // HANDLE
        dwIoControlCode: u32,  // DWORD
        lpInBuffer: *mut (),  // void* optional
        nInBufferSize: u32,  // DWORD
        lpOutBuffer: *mut (),  // void* optional, out
        nOutBufferSize: u32,  // DWORD
        lpBytesReturned: *mut u32,  // DWORD* optional, out
        lpOverlapped: *mut OVERLAPPED  // OVERLAPPED* optional, in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern bool DeviceIoControl(IntPtr hDevice, uint dwIoControlCode, IntPtr lpInBuffer, uint nInBufferSize, IntPtr lpOutBuffer, uint nOutBufferSize, IntPtr lpBytesReturned, IntPtr lpOverlapped);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_DeviceIoControl' -Namespace Win32 -PassThru
# $api::DeviceIoControl(hDevice, dwIoControlCode, lpInBuffer, nInBufferSize, lpOutBuffer, nOutBufferSize, lpBytesReturned, lpOverlapped)

#uselib "KERNEL32.dll"
#func global DeviceIoControl "DeviceIoControl" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DeviceIoControl hDevice, dwIoControlCode, lpInBuffer, nInBufferSize, lpOutBuffer, nOutBufferSize, varptr(lpBytesReturned), varptr(lpOverlapped)   ; 戻り値は stat
; hDevice : HANDLE -> "sptr"
; dwIoControlCode : DWORD -> "sptr"
; lpInBuffer : void* optional -> "sptr"
; nInBufferSize : DWORD -> "sptr"
; lpOutBuffer : void* optional, out -> "sptr"
; nOutBufferSize : DWORD -> "sptr"
; lpBytesReturned : DWORD* optional, out -> "sptr"
; lpOverlapped : OVERLAPPED* 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 "KERNEL32.dll"
#cfunc global DeviceIoControl "DeviceIoControl" sptr, int, sptr, int, sptr, int, var, var
; res = DeviceIoControl(hDevice, dwIoControlCode, lpInBuffer, nInBufferSize, lpOutBuffer, nOutBufferSize, lpBytesReturned, lpOverlapped)
; hDevice : HANDLE -> "sptr"
; dwIoControlCode : DWORD -> "int"
; lpInBuffer : void* optional -> "sptr"
; nInBufferSize : DWORD -> "int"
; lpOutBuffer : void* optional, out -> "sptr"
; nOutBufferSize : DWORD -> "int"
; lpBytesReturned : DWORD* optional, out -> "var"
; lpOverlapped : OVERLAPPED* 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 "KERNEL32.dll"
#cfunc global DeviceIoControl "DeviceIoControl" sptr, int, sptr, int, sptr, int, sptr, sptr
; res = DeviceIoControl(hDevice, dwIoControlCode, lpInBuffer, nInBufferSize, lpOutBuffer, nOutBufferSize, varptr(lpBytesReturned), varptr(lpOverlapped))
; hDevice : HANDLE -> "sptr"
; dwIoControlCode : DWORD -> "int"
; lpInBuffer : void* optional -> "sptr"
; nInBufferSize : DWORD -> "int"
; lpOutBuffer : void* optional, out -> "sptr"
; nOutBufferSize : DWORD -> "int"
; lpBytesReturned : DWORD* optional, out -> "sptr"
; lpOverlapped : OVERLAPPED* 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:

; BOOL DeviceIoControl(HANDLE hDevice, DWORD dwIoControlCode, void* lpInBuffer, DWORD nInBufferSize, void* lpOutBuffer, DWORD nOutBufferSize, DWORD* lpBytesReturned, OVERLAPPED* lpOverlapped)
#uselib "KERNEL32.dll"
#cfunc global DeviceIoControl "DeviceIoControl" intptr, int, intptr, int, intptr, int, var, var
; res = DeviceIoControl(hDevice, dwIoControlCode, lpInBuffer, nInBufferSize, lpOutBuffer, nOutBufferSize, lpBytesReturned, lpOverlapped)
; hDevice : HANDLE -> "intptr"
; dwIoControlCode : DWORD -> "int"
; lpInBuffer : void* optional -> "intptr"
; nInBufferSize : DWORD -> "int"
; lpOutBuffer : void* optional, out -> "intptr"
; nOutBufferSize : DWORD -> "int"
; lpBytesReturned : DWORD* optional, out -> "var"
; lpOverlapped : OVERLAPPED* 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。; BOOL DeviceIoControl(HANDLE hDevice, DWORD dwIoControlCode, void* lpInBuffer, DWORD nInBufferSize, void* lpOutBuffer, DWORD nOutBufferSize, DWORD* lpBytesReturned, OVERLAPPED* lpOverlapped)
#uselib "KERNEL32.dll"
#cfunc global DeviceIoControl "DeviceIoControl" intptr, int, intptr, int, intptr, int, intptr, intptr
; res = DeviceIoControl(hDevice, dwIoControlCode, lpInBuffer, nInBufferSize, lpOutBuffer, nOutBufferSize, varptr(lpBytesReturned), varptr(lpOverlapped))
; hDevice : HANDLE -> "intptr"
; dwIoControlCode : DWORD -> "int"
; lpInBuffer : void* optional -> "intptr"
; nInBufferSize : DWORD -> "int"
; lpOutBuffer : void* optional, out -> "intptr"
; nOutBufferSize : DWORD -> "int"
; lpBytesReturned : DWORD* optional, out -> "intptr"
; lpOverlapped : OVERLAPPED* 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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procDeviceIoControl = kernel32.NewProc("DeviceIoControl")
)

// hDevice (HANDLE), dwIoControlCode (DWORD), lpInBuffer (void* optional), nInBufferSize (DWORD), lpOutBuffer (void* optional, out), nOutBufferSize (DWORD), lpBytesReturned (DWORD* optional, out), lpOverlapped (OVERLAPPED* optional, in/out)
r1, _, err := procDeviceIoControl.Call(
	uintptr(hDevice),
	uintptr(dwIoControlCode),
	uintptr(lpInBuffer),
	uintptr(nInBufferSize),
	uintptr(lpOutBuffer),
	uintptr(nOutBufferSize),
	uintptr(lpBytesReturned),
	uintptr(lpOverlapped),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DeviceIoControl(
  hDevice: THandle;   // HANDLE
  dwIoControlCode: DWORD;   // DWORD
  lpInBuffer: Pointer;   // void* optional
  nInBufferSize: DWORD;   // DWORD
  lpOutBuffer: Pointer;   // void* optional, out
  nOutBufferSize: DWORD;   // DWORD
  lpBytesReturned: Pointer;   // DWORD* optional, out
  lpOverlapped: Pointer   // OVERLAPPED* optional, in/out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'DeviceIoControl';

result := DllCall("KERNEL32\DeviceIoControl"
    , "Ptr", hDevice   ; HANDLE
    , "UInt", dwIoControlCode   ; DWORD
    , "Ptr", lpInBuffer   ; void* optional
    , "UInt", nInBufferSize   ; DWORD
    , "Ptr", lpOutBuffer   ; void* optional, out
    , "UInt", nOutBufferSize   ; DWORD
    , "Ptr", lpBytesReturned   ; DWORD* optional, out
    , "Ptr", lpOverlapped   ; OVERLAPPED* optional, in/out
    , "Int")   ; return: BOOL

●DeviceIoControl(hDevice, dwIoControlCode, lpInBuffer, nInBufferSize, lpOutBuffer, nOutBufferSize, lpBytesReturned, lpOverlapped) = DLL("KERNEL32.dll", "bool DeviceIoControl(void*, dword, void*, dword, void*, dword, void*, void*)")
# 呼び出し: DeviceIoControl(hDevice, dwIoControlCode, lpInBuffer, nInBufferSize, lpOutBuffer, nOutBufferSize, lpBytesReturned, lpOverlapped)
# hDevice : HANDLE -> "void*"
# dwIoControlCode : DWORD -> "dword"
# lpInBuffer : void* optional -> "void*"
# nInBufferSize : DWORD -> "dword"
# lpOutBuffer : void* optional, out -> "void*"
# nOutBufferSize : DWORD -> "dword"
# lpBytesReturned : DWORD* optional, out -> "void*"
# lpOverlapped : OVERLAPPED* 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)。