Win32 API 日本語リファレンス
ホームDevices.DeviceAccess › CreateDeviceAccessInstance

CreateDeviceAccessInstance

関数
デバイスインターフェースへの非同期アクセスインスタンスを作成する。
DLLdeviceaccess.dll呼出規約winapi

シグネチャ

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

HRESULT CreateDeviceAccessInstance(
    LPCWSTR deviceInterfacePath,
    DWORD desiredAccess,
    ICreateDeviceAccessAsync** createAsync
);

パラメーター

名前方向
deviceInterfacePathLPCWSTRin
desiredAccessDWORDin
createAsyncICreateDeviceAccessAsync**out

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT CreateDeviceAccessInstance(
    LPCWSTR deviceInterfacePath,
    DWORD desiredAccess,
    ICreateDeviceAccessAsync** createAsync
);
[DllImport("deviceaccess.dll", ExactSpelling = true)]
static extern int CreateDeviceAccessInstance(
    [MarshalAs(UnmanagedType.LPWStr)] string deviceInterfacePath,   // LPCWSTR
    uint desiredAccess,   // DWORD
    IntPtr createAsync   // ICreateDeviceAccessAsync** out
);
<DllImport("deviceaccess.dll", ExactSpelling:=True)>
Public Shared Function CreateDeviceAccessInstance(
    <MarshalAs(UnmanagedType.LPWStr)> deviceInterfacePath As String,   ' LPCWSTR
    desiredAccess As UInteger,   ' DWORD
    createAsync As IntPtr   ' ICreateDeviceAccessAsync** out
) As Integer
End Function
' deviceInterfacePath : LPCWSTR
' desiredAccess : DWORD
' createAsync : ICreateDeviceAccessAsync** out
Declare PtrSafe Function CreateDeviceAccessInstance Lib "deviceaccess" ( _
    ByVal deviceInterfacePath As LongPtr, _
    ByVal desiredAccess As Long, _
    ByVal createAsync 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

CreateDeviceAccessInstance = ctypes.windll.deviceaccess.CreateDeviceAccessInstance
CreateDeviceAccessInstance.restype = ctypes.c_int
CreateDeviceAccessInstance.argtypes = [
    wintypes.LPCWSTR,  # deviceInterfacePath : LPCWSTR
    wintypes.DWORD,  # desiredAccess : DWORD
    ctypes.c_void_p,  # createAsync : ICreateDeviceAccessAsync** out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('deviceaccess.dll')
CreateDeviceAccessInstance = Fiddle::Function.new(
  lib['CreateDeviceAccessInstance'],
  [
    Fiddle::TYPE_VOIDP,  # deviceInterfacePath : LPCWSTR
    -Fiddle::TYPE_INT,  # desiredAccess : DWORD
    Fiddle::TYPE_VOIDP,  # createAsync : ICreateDeviceAccessAsync** out
  ],
  Fiddle::TYPE_INT)
#[link(name = "deviceaccess")]
extern "system" {
    fn CreateDeviceAccessInstance(
        deviceInterfacePath: *const u16,  // LPCWSTR
        desiredAccess: u32,  // DWORD
        createAsync: *mut *mut core::ffi::c_void  // ICreateDeviceAccessAsync** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("deviceaccess.dll")]
public static extern int CreateDeviceAccessInstance([MarshalAs(UnmanagedType.LPWStr)] string deviceInterfacePath, uint desiredAccess, IntPtr createAsync);
"@
$api = Add-Type -MemberDefinition $sig -Name 'deviceaccess_CreateDeviceAccessInstance' -Namespace Win32 -PassThru
# $api::CreateDeviceAccessInstance(deviceInterfacePath, desiredAccess, createAsync)
#uselib "deviceaccess.dll"
#func global CreateDeviceAccessInstance "CreateDeviceAccessInstance" sptr, sptr, sptr
; CreateDeviceAccessInstance deviceInterfacePath, desiredAccess, createAsync   ; 戻り値は stat
; deviceInterfacePath : LPCWSTR -> "sptr"
; desiredAccess : DWORD -> "sptr"
; createAsync : ICreateDeviceAccessAsync** 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。
#uselib "deviceaccess.dll"
#cfunc global CreateDeviceAccessInstance "CreateDeviceAccessInstance" wstr, int, sptr
; res = CreateDeviceAccessInstance(deviceInterfacePath, desiredAccess, createAsync)
; deviceInterfacePath : LPCWSTR -> "wstr"
; desiredAccess : DWORD -> "int"
; createAsync : ICreateDeviceAccessAsync** out -> "sptr"
; HRESULT CreateDeviceAccessInstance(LPCWSTR deviceInterfacePath, DWORD desiredAccess, ICreateDeviceAccessAsync** createAsync)
#uselib "deviceaccess.dll"
#cfunc global CreateDeviceAccessInstance "CreateDeviceAccessInstance" wstr, int, intptr
; res = CreateDeviceAccessInstance(deviceInterfacePath, desiredAccess, createAsync)
; deviceInterfacePath : LPCWSTR -> "wstr"
; desiredAccess : DWORD -> "int"
; createAsync : ICreateDeviceAccessAsync** out -> "intptr"
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	deviceaccess = windows.NewLazySystemDLL("deviceaccess.dll")
	procCreateDeviceAccessInstance = deviceaccess.NewProc("CreateDeviceAccessInstance")
)

// deviceInterfacePath (LPCWSTR), desiredAccess (DWORD), createAsync (ICreateDeviceAccessAsync** out)
r1, _, err := procCreateDeviceAccessInstance.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(deviceInterfacePath))),
	uintptr(desiredAccess),
	uintptr(createAsync),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT
function CreateDeviceAccessInstance(
  deviceInterfacePath: PWideChar;   // LPCWSTR
  desiredAccess: DWORD;   // DWORD
  createAsync: Pointer   // ICreateDeviceAccessAsync** out
): Integer; stdcall;
  external 'deviceaccess.dll' name 'CreateDeviceAccessInstance';
result := DllCall("deviceaccess\CreateDeviceAccessInstance"
    , "WStr", deviceInterfacePath   ; LPCWSTR
    , "UInt", desiredAccess   ; DWORD
    , "Ptr", createAsync   ; ICreateDeviceAccessAsync** out
    , "Int")   ; return: HRESULT
●CreateDeviceAccessInstance(deviceInterfacePath, desiredAccess, createAsync) = DLL("deviceaccess.dll", "int CreateDeviceAccessInstance(char*, dword, void*)")
# 呼び出し: CreateDeviceAccessInstance(deviceInterfacePath, desiredAccess, createAsync)
# deviceInterfacePath : LPCWSTR -> "char*"
# desiredAccess : DWORD -> "dword"
# createAsync : ICreateDeviceAccessAsync** 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)。