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SetupQuerySpaceRequiredOnDriveW
関数指定ドライブで必要となるディスク領域を照会する(Unicode)。
シグネチャ
// SETUPAPI.dll (Unicode / -W)
#include <windows.h>
BOOL SetupQuerySpaceRequiredOnDriveW(
void* DiskSpace,
LPCWSTR DriveSpec,
LONGLONG* SpaceRequired,
void* Reserved1, // optional
DWORD Reserved2 // optional
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| DiskSpace | void* | in | 問い合わせ対象のディスク領域リストのハンドル。 |
| DriveSpec | LPCWSTR | in | 必要領域を取得する対象ドライブ名(Unicode)。 |
| SpaceRequired | LONGLONG* | out | 必要なバイト数を受け取るLONGLONGへのポインタ(出力)。負値もあり得る。 |
| Reserved1 | void* | optional | 予約済み。NULLを指定する必要がある。 |
| Reserved2 | DWORD | optional | 予約済み。0を指定する必要がある。 |
戻り値の型: BOOL
各言語での呼び出し定義
// SETUPAPI.dll (Unicode / -W)
#include <windows.h>
BOOL SetupQuerySpaceRequiredOnDriveW(
void* DiskSpace,
LPCWSTR DriveSpec,
LONGLONG* SpaceRequired,
void* Reserved1, // optional
DWORD Reserved2 // optional
);[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
static extern bool SetupQuerySpaceRequiredOnDriveW(
IntPtr DiskSpace, // void*
[MarshalAs(UnmanagedType.LPWStr)] string DriveSpec, // LPCWSTR
out long SpaceRequired, // LONGLONG* out
IntPtr Reserved1, // void* optional
uint Reserved2 // DWORD optional
);<DllImport("SETUPAPI.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupQuerySpaceRequiredOnDriveW(
DiskSpace As IntPtr, ' void*
<MarshalAs(UnmanagedType.LPWStr)> DriveSpec As String, ' LPCWSTR
<Out> ByRef SpaceRequired As Long, ' LONGLONG* out
Reserved1 As IntPtr, ' void* optional
Reserved2 As UInteger ' DWORD optional
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function' DiskSpace : void*
' DriveSpec : LPCWSTR
' SpaceRequired : LONGLONG* out
' Reserved1 : void* optional
' Reserved2 : DWORD optional
Declare PtrSafe Function SetupQuerySpaceRequiredOnDriveW Lib "setupapi" ( _
ByVal DiskSpace As LongPtr, _
ByVal DriveSpec As LongPtr, _
ByRef SpaceRequired As LongLong, _
ByVal Reserved1 As LongPtr, _
ByVal Reserved2 As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
SetupQuerySpaceRequiredOnDriveW = ctypes.windll.setupapi.SetupQuerySpaceRequiredOnDriveW
SetupQuerySpaceRequiredOnDriveW.restype = wintypes.BOOL
SetupQuerySpaceRequiredOnDriveW.argtypes = [
ctypes.POINTER(None), # DiskSpace : void*
wintypes.LPCWSTR, # DriveSpec : LPCWSTR
ctypes.POINTER(ctypes.c_longlong), # SpaceRequired : LONGLONG* out
ctypes.POINTER(None), # Reserved1 : void* optional
wintypes.DWORD, # Reserved2 : DWORD optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('SETUPAPI.dll')
SetupQuerySpaceRequiredOnDriveW = Fiddle::Function.new(
lib['SetupQuerySpaceRequiredOnDriveW'],
[
Fiddle::TYPE_VOIDP, # DiskSpace : void*
Fiddle::TYPE_VOIDP, # DriveSpec : LPCWSTR
Fiddle::TYPE_VOIDP, # SpaceRequired : LONGLONG* out
Fiddle::TYPE_VOIDP, # Reserved1 : void* optional
-Fiddle::TYPE_INT, # Reserved2 : DWORD optional
],
Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"#[link(name = "setupapi")]
extern "system" {
fn SetupQuerySpaceRequiredOnDriveW(
DiskSpace: *mut (), // void*
DriveSpec: *const u16, // LPCWSTR
SpaceRequired: *mut i64, // LONGLONG* out
Reserved1: *mut (), // void* optional
Reserved2: u32 // DWORD optional
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool SetupQuerySpaceRequiredOnDriveW(IntPtr DiskSpace, [MarshalAs(UnmanagedType.LPWStr)] string DriveSpec, out long SpaceRequired, IntPtr Reserved1, uint Reserved2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupQuerySpaceRequiredOnDriveW' -Namespace Win32 -PassThru
# $api::SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2)#uselib "SETUPAPI.dll"
#func global SetupQuerySpaceRequiredOnDriveW "SetupQuerySpaceRequiredOnDriveW" wptr, wptr, wptr, wptr, wptr
; SetupQuerySpaceRequiredOnDriveW DiskSpace, DriveSpec, varptr(SpaceRequired), Reserved1, Reserved2 ; 戻り値は stat
; DiskSpace : void* -> "wptr"
; DriveSpec : LPCWSTR -> "wptr"
; SpaceRequired : LONGLONG* out -> "wptr"
; Reserved1 : void* optional -> "wptr"
; Reserved2 : DWORD optional -> "wptr"
; ※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 "SETUPAPI.dll" #cfunc global SetupQuerySpaceRequiredOnDriveW "SetupQuerySpaceRequiredOnDriveW" sptr, wstr, var, sptr, int ; res = SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2) ; DiskSpace : void* -> "sptr" ; DriveSpec : LPCWSTR -> "wstr" ; SpaceRequired : LONGLONG* out -> "var" ; Reserved1 : void* optional -> "sptr" ; Reserved2 : DWORD optional -> "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 "SETUPAPI.dll" #cfunc global SetupQuerySpaceRequiredOnDriveW "SetupQuerySpaceRequiredOnDriveW" sptr, wstr, sptr, sptr, int ; res = SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, varptr(SpaceRequired), Reserved1, Reserved2) ; DiskSpace : void* -> "sptr" ; DriveSpec : LPCWSTR -> "wstr" ; SpaceRequired : LONGLONG* out -> "sptr" ; Reserved1 : void* optional -> "sptr" ; Reserved2 : DWORD optional -> "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:
; BOOL SetupQuerySpaceRequiredOnDriveW(void* DiskSpace, LPCWSTR DriveSpec, LONGLONG* SpaceRequired, void* Reserved1, DWORD Reserved2) #uselib "SETUPAPI.dll" #cfunc global SetupQuerySpaceRequiredOnDriveW "SetupQuerySpaceRequiredOnDriveW" intptr, wstr, var, intptr, int ; res = SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2) ; DiskSpace : void* -> "intptr" ; DriveSpec : LPCWSTR -> "wstr" ; SpaceRequired : LONGLONG* out -> "var" ; Reserved1 : void* optional -> "intptr" ; Reserved2 : DWORD optional -> "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。; BOOL SetupQuerySpaceRequiredOnDriveW(void* DiskSpace, LPCWSTR DriveSpec, LONGLONG* SpaceRequired, void* Reserved1, DWORD Reserved2) #uselib "SETUPAPI.dll" #cfunc global SetupQuerySpaceRequiredOnDriveW "SetupQuerySpaceRequiredOnDriveW" intptr, wstr, intptr, intptr, int ; res = SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, varptr(SpaceRequired), Reserved1, Reserved2) ; DiskSpace : void* -> "intptr" ; DriveSpec : LPCWSTR -> "wstr" ; SpaceRequired : LONGLONG* out -> "intptr" ; Reserved1 : void* optional -> "intptr" ; Reserved2 : DWORD optional -> "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 (
setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
procSetupQuerySpaceRequiredOnDriveW = setupapi.NewProc("SetupQuerySpaceRequiredOnDriveW")
)
// DiskSpace (void*), DriveSpec (LPCWSTR), SpaceRequired (LONGLONG* out), Reserved1 (void* optional), Reserved2 (DWORD optional)
r1, _, err := procSetupQuerySpaceRequiredOnDriveW.Call(
uintptr(DiskSpace),
uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(DriveSpec))),
uintptr(SpaceRequired),
uintptr(Reserved1),
uintptr(Reserved2),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // BOOLfunction SetupQuerySpaceRequiredOnDriveW(
DiskSpace: Pointer; // void*
DriveSpec: PWideChar; // LPCWSTR
SpaceRequired: Pointer; // LONGLONG* out
Reserved1: Pointer; // void* optional
Reserved2: DWORD // DWORD optional
): BOOL; stdcall;
external 'SETUPAPI.dll' name 'SetupQuerySpaceRequiredOnDriveW';result := DllCall("SETUPAPI\SetupQuerySpaceRequiredOnDriveW"
, "Ptr", DiskSpace ; void*
, "WStr", DriveSpec ; LPCWSTR
, "Ptr", SpaceRequired ; LONGLONG* out
, "Ptr", Reserved1 ; void* optional
, "UInt", Reserved2 ; DWORD optional
, "Int") ; return: BOOL●SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2) = DLL("SETUPAPI.dll", "bool SetupQuerySpaceRequiredOnDriveW(void*, char*, void*, void*, dword)")
# 呼び出し: SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2)
# DiskSpace : void* -> "void*"
# DriveSpec : LPCWSTR -> "char*"
# SpaceRequired : LONGLONG* out -> "void*"
# Reserved1 : void* optional -> "void*"
# Reserved2 : DWORD optional -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。const std = @import("std");
extern "setupapi" fn SetupQuerySpaceRequiredOnDriveW(
DiskSpace: ?*anyopaque, // void*
DriveSpec: [*c]const u16, // LPCWSTR
SpaceRequired: [*c]i64, // LONGLONG* out
Reserved1: ?*anyopaque, // void* optional
Reserved2: u32 // DWORD optional
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。proc SetupQuerySpaceRequiredOnDriveW(
DiskSpace: pointer, # void*
DriveSpec: WideCString, # LPCWSTR
SpaceRequired: ptr int64, # LONGLONG* out
Reserved1: pointer, # void* optional
Reserved2: uint32 # DWORD optional
): int32 {.importc: "SetupQuerySpaceRequiredOnDriveW", stdcall, dynlib: "SETUPAPI.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。pragma(lib, "setupapi");
extern(Windows)
int SetupQuerySpaceRequiredOnDriveW(
void* DiskSpace, // void*
const(wchar)* DriveSpec, // LPCWSTR
long* SpaceRequired, // LONGLONG* out
void* Reserved1, // void* optional
uint Reserved2 // DWORD optional
);ccall((:SetupQuerySpaceRequiredOnDriveW, "SETUPAPI.dll"), stdcall, Int32,
(Ptr{Cvoid}, Cwstring, Ptr{Int64}, Ptr{Cvoid}, UInt32),
DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2)
# DiskSpace : void* -> Ptr{Cvoid}
# DriveSpec : LPCWSTR -> Cwstring
# SpaceRequired : LONGLONG* out -> Ptr{Int64}
# Reserved1 : void* optional -> Ptr{Cvoid}
# Reserved2 : DWORD optional -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。local ffi = require("ffi")
ffi.cdef[[
int32_t SetupQuerySpaceRequiredOnDriveW(
void* DiskSpace,
const uint16_t* DriveSpec,
int64_t* SpaceRequired,
void* Reserved1,
uint32_t Reserved2);
]]
local setupapi = ffi.load("setupapi")
-- setupapi.SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2)
-- DiskSpace : void*
-- DriveSpec : LPCWSTR
-- SpaceRequired : LONGLONG* out
-- Reserved1 : void* optional
-- Reserved2 : DWORD optional
-- 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。const koffi = require('koffi');
const lib = koffi.load('SETUPAPI.dll');
const SetupQuerySpaceRequiredOnDriveW = lib.func('__stdcall', 'SetupQuerySpaceRequiredOnDriveW', 'int32_t', ['void *', 'str16', 'int64_t *', 'void *', 'uint32_t']);
// SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2)
// DiskSpace : void* -> 'void *'
// DriveSpec : LPCWSTR -> 'str16'
// SpaceRequired : LONGLONG* out -> 'int64_t *'
// Reserved1 : void* optional -> 'void *'
// Reserved2 : DWORD optional -> 'uint32_t'
// 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("SETUPAPI.dll", {
SetupQuerySpaceRequiredOnDriveW: { parameters: ["pointer", "buffer", "pointer", "pointer", "u32"], result: "i32" },
});
// lib.symbols.SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2)
// DiskSpace : void* -> "pointer"
// DriveSpec : LPCWSTR -> "buffer"
// SpaceRequired : LONGLONG* out -> "pointer"
// Reserved1 : void* optional -> "pointer"
// Reserved2 : DWORD optional -> "u32"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。<?php
$ffi = FFI::cdef(<<<C
int32_t SetupQuerySpaceRequiredOnDriveW(
void* DiskSpace,
const uint16_t* DriveSpec,
int64_t* SpaceRequired,
void* Reserved1,
uint32_t Reserved2);
C, "SETUPAPI.dll");
// $ffi->SetupQuerySpaceRequiredOnDriveW(DiskSpace, DriveSpec, SpaceRequired, Reserved1, Reserved2);
// DiskSpace : void*
// DriveSpec : LPCWSTR
// SpaceRequired : LONGLONG* out
// Reserved1 : void* optional
// Reserved2 : DWORD optional
// 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 Setupapi extends StdCallLibrary {
Setupapi INSTANCE = Native.load("setupapi", Setupapi.class, W32APIOptions.UNICODE_OPTIONS);
boolean SetupQuerySpaceRequiredOnDriveW(
Pointer DiskSpace, // void*
WString DriveSpec, // LPCWSTR
LongByReference SpaceRequired, // LONGLONG* out
Pointer Reserved1, // void* optional
int Reserved2 // DWORD optional
);
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。@[Link("setupapi")]
lib LibSETUPAPI
fun SetupQuerySpaceRequiredOnDriveW = SetupQuerySpaceRequiredOnDriveW(
DiskSpace : Void*, # void*
DriveSpec : UInt16*, # LPCWSTR
SpaceRequired : Int64*, # LONGLONG* out
Reserved1 : Void*, # void* optional
Reserved2 : UInt32 # DWORD optional
) : Int32
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 SetupQuerySpaceRequiredOnDriveWNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Int64>, Pointer<Void>, Uint32);
typedef SetupQuerySpaceRequiredOnDriveWDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Int64>, Pointer<Void>, int);
final SetupQuerySpaceRequiredOnDriveW = DynamicLibrary.open('SETUPAPI.dll')
.lookupFunction<SetupQuerySpaceRequiredOnDriveWNative, SetupQuerySpaceRequiredOnDriveWDart>('SetupQuerySpaceRequiredOnDriveW');
// DiskSpace : void* -> Pointer<Void>
// DriveSpec : LPCWSTR -> Pointer<Utf16>
// SpaceRequired : LONGLONG* out -> Pointer<Int64>
// Reserved1 : void* optional -> Pointer<Void>
// Reserved2 : DWORD optional -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function SetupQuerySpaceRequiredOnDriveW(
DiskSpace: Pointer; // void*
DriveSpec: PWideChar; // LPCWSTR
SpaceRequired: Pointer; // LONGLONG* out
Reserved1: Pointer; // void* optional
Reserved2: DWORD // DWORD optional
): BOOL; stdcall;
external 'SETUPAPI.dll' name 'SetupQuerySpaceRequiredOnDriveW';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "SetupQuerySpaceRequiredOnDriveW"
c_SetupQuerySpaceRequiredOnDriveW :: Ptr () -> CWString -> Ptr Int64 -> Ptr () -> Word32 -> IO CInt
-- DiskSpace : void* -> Ptr ()
-- DriveSpec : LPCWSTR -> CWString
-- SpaceRequired : LONGLONG* out -> Ptr Int64
-- Reserved1 : void* optional -> Ptr ()
-- Reserved2 : DWORD optional -> Word32
-- 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 setupqueryspacerequiredondrivew =
foreign "SetupQuerySpaceRequiredOnDriveW"
((ptr void) @-> (ptr uint16_t) @-> (ptr int64_t) @-> (ptr void) @-> uint32_t @-> returning int32_t)
(* DiskSpace : void* -> (ptr void) *)
(* DriveSpec : LPCWSTR -> (ptr uint16_t) *)
(* SpaceRequired : LONGLONG* out -> (ptr int64_t) *)
(* Reserved1 : void* optional -> (ptr void) *)
(* Reserved2 : DWORD optional -> uint32_t *)
(* 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 setupapi (t "SETUPAPI.dll"))
(cffi:use-foreign-library setupapi)
(cffi:defcfun ("SetupQuerySpaceRequiredOnDriveW" setup-query-space-required-on-drive-w :convention :stdcall) :int32
(disk-space :pointer) ; void*
(drive-spec (:string :encoding :utf-16le)) ; LPCWSTR
(space-required :pointer) ; LONGLONG* out
(reserved1 :pointer) ; void* optional
(reserved2 :uint32)) ; DWORD optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $SetupQuerySpaceRequiredOnDriveW = Win32::API::More->new('SETUPAPI',
'BOOL SetupQuerySpaceRequiredOnDriveW(LPVOID DiskSpace, LPCWSTR DriveSpec, LPVOID SpaceRequired, LPVOID Reserved1, DWORD Reserved2)');
# my $ret = $SetupQuerySpaceRequiredOnDriveW->Call($DiskSpace, $DriveSpec, $SpaceRequired, $Reserved1, $Reserved2);
# DiskSpace : void* -> LPVOID
# DriveSpec : LPCWSTR -> LPCWSTR
# SpaceRequired : LONGLONG* out -> LPVOID
# Reserved1 : void* optional -> LPVOID
# Reserved2 : DWORD optional -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。関連項目
文字セット違い
- f SetupQuerySpaceRequiredOnDriveA (ANSI版) — 指定ドライブで必要となるディスク領域を照会する(ANSI)。