Win32 API 日本語リファレンス
ホームStorage.Vhd › ForkVirtualDisk

ForkVirtualDisk

関数
仮想ディスクを複製しフォークを作成する。
DLLVirtDisk.dll呼出規約winapi

シグネチャ

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

WIN32_ERROR ForkVirtualDisk(
    HANDLE VirtualDiskHandle,
    FORK_VIRTUAL_DISK_FLAG Flags,
    const FORK_VIRTUAL_DISK_PARAMETERS* Parameters,
    OVERLAPPED* Overlapped
);

パラメーター

名前方向説明
VirtualDiskHandleHANDLEinフォークする対象の仮想ディスクのハンドル。書き込みを別ファイルへ分岐させる。
FlagsFORK_VIRTUAL_DISK_FLAGinフォーク動作を制御するFORK_VIRTUAL_DISK_FLAGのビットフラグ。既存ファイル使用などを指定する。
ParametersFORK_VIRTUAL_DISK_PARAMETERS*inフォーク先パス等を指定するFORK_VIRTUAL_DISK_PARAMETERS構造体へのポインタ。
OverlappedOVERLAPPED*inout非同期実行用のOVERLAPPED構造体へのポインタ。同期実行する場合はNULL可。

戻り値の型: WIN32_ERROR

各言語での呼び出し定義

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

WIN32_ERROR ForkVirtualDisk(
    HANDLE VirtualDiskHandle,
    FORK_VIRTUAL_DISK_FLAG Flags,
    const FORK_VIRTUAL_DISK_PARAMETERS* Parameters,
    OVERLAPPED* Overlapped
);
[DllImport("VirtDisk.dll", ExactSpelling = true)]
static extern uint ForkVirtualDisk(
    IntPtr VirtualDiskHandle,   // HANDLE
    int Flags,   // FORK_VIRTUAL_DISK_FLAG
    IntPtr Parameters,   // FORK_VIRTUAL_DISK_PARAMETERS*
    IntPtr Overlapped   // OVERLAPPED* in/out
);
<DllImport("VirtDisk.dll", ExactSpelling:=True)>
Public Shared Function ForkVirtualDisk(
    VirtualDiskHandle As IntPtr,   ' HANDLE
    Flags As Integer,   ' FORK_VIRTUAL_DISK_FLAG
    Parameters As IntPtr,   ' FORK_VIRTUAL_DISK_PARAMETERS*
    Overlapped As IntPtr   ' OVERLAPPED* in/out
) As UInteger
End Function
' VirtualDiskHandle : HANDLE
' Flags : FORK_VIRTUAL_DISK_FLAG
' Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
' Overlapped : OVERLAPPED* in/out
Declare PtrSafe Function ForkVirtualDisk Lib "virtdisk" ( _
    ByVal VirtualDiskHandle As LongPtr, _
    ByVal Flags As Long, _
    ByVal Parameters As LongPtr, _
    ByVal Overlapped 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

ForkVirtualDisk = ctypes.windll.virtdisk.ForkVirtualDisk
ForkVirtualDisk.restype = wintypes.DWORD
ForkVirtualDisk.argtypes = [
    wintypes.HANDLE,  # VirtualDiskHandle : HANDLE
    ctypes.c_int,  # Flags : FORK_VIRTUAL_DISK_FLAG
    ctypes.c_void_p,  # Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
    ctypes.c_void_p,  # Overlapped : OVERLAPPED* in/out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('VirtDisk.dll')
ForkVirtualDisk = Fiddle::Function.new(
  lib['ForkVirtualDisk'],
  [
    Fiddle::TYPE_VOIDP,  # VirtualDiskHandle : HANDLE
    Fiddle::TYPE_INT,  # Flags : FORK_VIRTUAL_DISK_FLAG
    Fiddle::TYPE_VOIDP,  # Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
    Fiddle::TYPE_VOIDP,  # Overlapped : OVERLAPPED* in/out
  ],
  -Fiddle::TYPE_INT)
#[link(name = "virtdisk")]
extern "system" {
    fn ForkVirtualDisk(
        VirtualDiskHandle: *mut core::ffi::c_void,  // HANDLE
        Flags: i32,  // FORK_VIRTUAL_DISK_FLAG
        Parameters: *const FORK_VIRTUAL_DISK_PARAMETERS,  // FORK_VIRTUAL_DISK_PARAMETERS*
        Overlapped: *mut OVERLAPPED  // OVERLAPPED* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("VirtDisk.dll")]
public static extern uint ForkVirtualDisk(IntPtr VirtualDiskHandle, int Flags, IntPtr Parameters, IntPtr Overlapped);
"@
$api = Add-Type -MemberDefinition $sig -Name 'VirtDisk_ForkVirtualDisk' -Namespace Win32 -PassThru
# $api::ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
#uselib "VirtDisk.dll"
#func global ForkVirtualDisk "ForkVirtualDisk" sptr, sptr, sptr, sptr
; ForkVirtualDisk VirtualDiskHandle, Flags, varptr(Parameters), varptr(Overlapped)   ; 戻り値は stat
; VirtualDiskHandle : HANDLE -> "sptr"
; Flags : FORK_VIRTUAL_DISK_FLAG -> "sptr"
; Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "sptr"
; Overlapped : OVERLAPPED* 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 "VirtDisk.dll"
#cfunc global ForkVirtualDisk "ForkVirtualDisk" sptr, int, var, var
; res = ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
; VirtualDiskHandle : HANDLE -> "sptr"
; Flags : FORK_VIRTUAL_DISK_FLAG -> "int"
; Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "var"
; Overlapped : OVERLAPPED* 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。
出力引数:
; WIN32_ERROR ForkVirtualDisk(HANDLE VirtualDiskHandle, FORK_VIRTUAL_DISK_FLAG Flags, FORK_VIRTUAL_DISK_PARAMETERS* Parameters, OVERLAPPED* Overlapped)
#uselib "VirtDisk.dll"
#cfunc global ForkVirtualDisk "ForkVirtualDisk" intptr, int, var, var
; res = ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
; VirtualDiskHandle : HANDLE -> "intptr"
; Flags : FORK_VIRTUAL_DISK_FLAG -> "int"
; Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "var"
; Overlapped : OVERLAPPED* 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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	virtdisk = windows.NewLazySystemDLL("VirtDisk.dll")
	procForkVirtualDisk = virtdisk.NewProc("ForkVirtualDisk")
)

// VirtualDiskHandle (HANDLE), Flags (FORK_VIRTUAL_DISK_FLAG), Parameters (FORK_VIRTUAL_DISK_PARAMETERS*), Overlapped (OVERLAPPED* in/out)
r1, _, err := procForkVirtualDisk.Call(
	uintptr(VirtualDiskHandle),
	uintptr(Flags),
	uintptr(Parameters),
	uintptr(Overlapped),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR
function ForkVirtualDisk(
  VirtualDiskHandle: THandle;   // HANDLE
  Flags: Integer;   // FORK_VIRTUAL_DISK_FLAG
  Parameters: Pointer;   // FORK_VIRTUAL_DISK_PARAMETERS*
  Overlapped: Pointer   // OVERLAPPED* in/out
): DWORD; stdcall;
  external 'VirtDisk.dll' name 'ForkVirtualDisk';
result := DllCall("VirtDisk\ForkVirtualDisk"
    , "Ptr", VirtualDiskHandle   ; HANDLE
    , "Int", Flags   ; FORK_VIRTUAL_DISK_FLAG
    , "Ptr", Parameters   ; FORK_VIRTUAL_DISK_PARAMETERS*
    , "Ptr", Overlapped   ; OVERLAPPED* in/out
    , "UInt")   ; return: WIN32_ERROR
●ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped) = DLL("VirtDisk.dll", "dword ForkVirtualDisk(void*, int, void*, void*)")
# 呼び出し: ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
# VirtualDiskHandle : HANDLE -> "void*"
# Flags : FORK_VIRTUAL_DISK_FLAG -> "int"
# Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "void*"
# Overlapped : OVERLAPPED* 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)。
const std = @import("std");

extern "virtdisk" fn ForkVirtualDisk(
    VirtualDiskHandle: ?*anyopaque, // HANDLE
    Flags: i32, // FORK_VIRTUAL_DISK_FLAG
    Parameters: [*c]FORK_VIRTUAL_DISK_PARAMETERS, // FORK_VIRTUAL_DISK_PARAMETERS*
    Overlapped: [*c]OVERLAPPED // OVERLAPPED* in/out
) callconv(std.os.windows.WINAPI) u32;
proc ForkVirtualDisk(
    VirtualDiskHandle: pointer,  # HANDLE
    Flags: int32,  # FORK_VIRTUAL_DISK_FLAG
    Parameters: ptr FORK_VIRTUAL_DISK_PARAMETERS,  # FORK_VIRTUAL_DISK_PARAMETERS*
    Overlapped: ptr OVERLAPPED  # OVERLAPPED* in/out
): uint32 {.importc: "ForkVirtualDisk", stdcall, dynlib: "VirtDisk.dll".}
pragma(lib, "virtdisk");
extern(Windows)
uint ForkVirtualDisk(
    void* VirtualDiskHandle,   // HANDLE
    int Flags,   // FORK_VIRTUAL_DISK_FLAG
    FORK_VIRTUAL_DISK_PARAMETERS* Parameters,   // FORK_VIRTUAL_DISK_PARAMETERS*
    OVERLAPPED* Overlapped   // OVERLAPPED* in/out
);
ccall((:ForkVirtualDisk, "VirtDisk.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Int32, Ptr{FORK_VIRTUAL_DISK_PARAMETERS}, Ptr{OVERLAPPED}),
      VirtualDiskHandle, Flags, Parameters, Overlapped)
# VirtualDiskHandle : HANDLE -> Ptr{Cvoid}
# Flags : FORK_VIRTUAL_DISK_FLAG -> Int32
# Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> Ptr{FORK_VIRTUAL_DISK_PARAMETERS}
# Overlapped : OVERLAPPED* in/out -> Ptr{OVERLAPPED}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
uint32_t ForkVirtualDisk(
    void* VirtualDiskHandle,
    int32_t Flags,
    void* Parameters,
    void* Overlapped);
]]
local virtdisk = ffi.load("virtdisk")
-- virtdisk.ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
-- VirtualDiskHandle : HANDLE
-- Flags : FORK_VIRTUAL_DISK_FLAG
-- Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
-- Overlapped : OVERLAPPED* in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
const koffi = require('koffi');
const lib = koffi.load('VirtDisk.dll');
const ForkVirtualDisk = lib.func('__stdcall', 'ForkVirtualDisk', 'uint32_t', ['void *', 'int32_t', 'void *', 'void *']);
// ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
// VirtualDiskHandle : HANDLE -> 'void *'
// Flags : FORK_VIRTUAL_DISK_FLAG -> 'int32_t'
// Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> 'void *'
// Overlapped : OVERLAPPED* in/out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
const lib = Deno.dlopen("VirtDisk.dll", {
  ForkVirtualDisk: { parameters: ["pointer", "i32", "pointer", "pointer"], result: "u32" },
});
// lib.symbols.ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped)
// VirtualDiskHandle : HANDLE -> "pointer"
// Flags : FORK_VIRTUAL_DISK_FLAG -> "i32"
// Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> "pointer"
// Overlapped : OVERLAPPED* in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。
<?php
$ffi = FFI::cdef(<<<C
uint32_t ForkVirtualDisk(
    void* VirtualDiskHandle,
    int32_t Flags,
    void* Parameters,
    void* Overlapped);
C, "VirtDisk.dll");
// $ffi->ForkVirtualDisk(VirtualDiskHandle, Flags, Parameters, Overlapped);
// VirtualDiskHandle : HANDLE
// Flags : FORK_VIRTUAL_DISK_FLAG
// Parameters : FORK_VIRTUAL_DISK_PARAMETERS*
// Overlapped : OVERLAPPED* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。
import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Virtdisk extends StdCallLibrary {
    Virtdisk INSTANCE = Native.load("virtdisk", Virtdisk.class);
    int ForkVirtualDisk(
        Pointer VirtualDiskHandle,   // HANDLE
        int Flags,   // FORK_VIRTUAL_DISK_FLAG
        Pointer Parameters,   // FORK_VIRTUAL_DISK_PARAMETERS*
        Pointer Overlapped   // OVERLAPPED* in/out
    );
}
@[Link("virtdisk")]
lib LibVirtDisk
  fun ForkVirtualDisk = ForkVirtualDisk(
    VirtualDiskHandle : Void*,   # HANDLE
    Flags : Int32,   # FORK_VIRTUAL_DISK_FLAG
    Parameters : FORK_VIRTUAL_DISK_PARAMETERS*,   # FORK_VIRTUAL_DISK_PARAMETERS*
    Overlapped : OVERLAPPED*   # OVERLAPPED* in/out
  ) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。
import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef ForkVirtualDiskNative = Uint32 Function(Pointer<Void>, Int32, Pointer<Void>, Pointer<Void>);
typedef ForkVirtualDiskDart = int Function(Pointer<Void>, int, Pointer<Void>, Pointer<Void>);
final ForkVirtualDisk = DynamicLibrary.open('VirtDisk.dll')
    .lookupFunction<ForkVirtualDiskNative, ForkVirtualDiskDart>('ForkVirtualDisk');
// VirtualDiskHandle : HANDLE -> Pointer<Void>
// Flags : FORK_VIRTUAL_DISK_FLAG -> Int32
// Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> Pointer<Void>
// Overlapped : OVERLAPPED* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function ForkVirtualDisk(
  VirtualDiskHandle: THandle;   // HANDLE
  Flags: Integer;   // FORK_VIRTUAL_DISK_FLAG
  Parameters: Pointer;   // FORK_VIRTUAL_DISK_PARAMETERS*
  Overlapped: Pointer   // OVERLAPPED* in/out
): DWORD; stdcall;
  external 'VirtDisk.dll' name 'ForkVirtualDisk';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "ForkVirtualDisk"
  c_ForkVirtualDisk :: Ptr () -> Int32 -> Ptr () -> Ptr () -> IO Word32
-- VirtualDiskHandle : HANDLE -> Ptr ()
-- Flags : FORK_VIRTUAL_DISK_FLAG -> Int32
-- Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> Ptr ()
-- Overlapped : OVERLAPPED* in/out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
open Ctypes
open Foreign

let forkvirtualdisk =
  foreign "ForkVirtualDisk"
    ((ptr void) @-> int32_t @-> (ptr void) @-> (ptr void) @-> returning uint32_t)
(* VirtualDiskHandle : HANDLE -> (ptr void) *)
(* Flags : FORK_VIRTUAL_DISK_FLAG -> int32_t *)
(* Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> (ptr void) *)
(* Overlapped : OVERLAPPED* in/out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)
(cffi:define-foreign-library virtdisk (t "VirtDisk.dll"))
(cffi:use-foreign-library virtdisk)

(cffi:defcfun ("ForkVirtualDisk" fork-virtual-disk :convention :stdcall) :uint32
  (virtual-disk-handle :pointer)   ; HANDLE
  (flags :int32)   ; FORK_VIRTUAL_DISK_FLAG
  (parameters :pointer)   ; FORK_VIRTUAL_DISK_PARAMETERS*
  (overlapped :pointer))   ; OVERLAPPED* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $ForkVirtualDisk = Win32::API::More->new('VirtDisk',
    'DWORD ForkVirtualDisk(HANDLE VirtualDiskHandle, int Flags, LPVOID Parameters, LPVOID Overlapped)');
# my $ret = $ForkVirtualDisk->Call($VirtualDiskHandle, $Flags, $Parameters, $Overlapped);
# VirtualDiskHandle : HANDLE -> HANDLE
# Flags : FORK_VIRTUAL_DISK_FLAG -> int
# Parameters : FORK_VIRTUAL_DISK_PARAMETERS* -> LPVOID
# Overlapped : OVERLAPPED* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

関連項目

使用する型