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DrtGetInstanceNameSize
関数DRTインスタンス名に必要なバッファサイズを取得する。
シグネチャ
// drt.dll
#include <windows.h>
HRESULT DrtGetInstanceNameSize(
void* hDrt,
DWORD* pulcbInstanceNameSize
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| hDrt | void* | in | 対象のDRTインスタンスのハンドル。 |
| pulcbInstanceNameSize | DWORD* | out | インスタンス名に必要なバイト数を受け取るポインタ。 |
戻り値の型: HRESULT
各言語での呼び出し定義
// drt.dll
#include <windows.h>
HRESULT DrtGetInstanceNameSize(
void* hDrt,
DWORD* pulcbInstanceNameSize
);[DllImport("drt.dll", ExactSpelling = true)]
static extern int DrtGetInstanceNameSize(
IntPtr hDrt, // void*
out uint pulcbInstanceNameSize // DWORD* out
);<DllImport("drt.dll", ExactSpelling:=True)>
Public Shared Function DrtGetInstanceNameSize(
hDrt As IntPtr, ' void*
<Out> ByRef pulcbInstanceNameSize As UInteger ' DWORD* out
) As Integer
End Function' hDrt : void*
' pulcbInstanceNameSize : DWORD* out
Declare PtrSafe Function DrtGetInstanceNameSize Lib "drt" ( _
ByVal hDrt As LongPtr, _
ByRef pulcbInstanceNameSize As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
DrtGetInstanceNameSize = ctypes.windll.drt.DrtGetInstanceNameSize
DrtGetInstanceNameSize.restype = ctypes.c_int
DrtGetInstanceNameSize.argtypes = [
ctypes.POINTER(None), # hDrt : void*
ctypes.POINTER(wintypes.DWORD), # pulcbInstanceNameSize : DWORD* out
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('drt.dll')
DrtGetInstanceNameSize = Fiddle::Function.new(
lib['DrtGetInstanceNameSize'],
[
Fiddle::TYPE_VOIDP, # hDrt : void*
Fiddle::TYPE_VOIDP, # pulcbInstanceNameSize : DWORD* out
],
Fiddle::TYPE_INT)#[link(name = "drt")]
extern "system" {
fn DrtGetInstanceNameSize(
hDrt: *mut (), // void*
pulcbInstanceNameSize: *mut u32 // DWORD* out
) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("drt.dll")]
public static extern int DrtGetInstanceNameSize(IntPtr hDrt, out uint pulcbInstanceNameSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'drt_DrtGetInstanceNameSize' -Namespace Win32 -PassThru
# $api::DrtGetInstanceNameSize(hDrt, pulcbInstanceNameSize)#uselib "drt.dll"
#func global DrtGetInstanceNameSize "DrtGetInstanceNameSize" sptr, sptr
; DrtGetInstanceNameSize hDrt, varptr(pulcbInstanceNameSize) ; 戻り値は stat
; hDrt : void* -> "sptr"
; pulcbInstanceNameSize : DWORD* 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 "drt.dll" #cfunc global DrtGetInstanceNameSize "DrtGetInstanceNameSize" sptr, var ; res = DrtGetInstanceNameSize(hDrt, pulcbInstanceNameSize) ; hDrt : void* -> "sptr" ; pulcbInstanceNameSize : DWORD* 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 "drt.dll" #cfunc global DrtGetInstanceNameSize "DrtGetInstanceNameSize" sptr, sptr ; res = DrtGetInstanceNameSize(hDrt, varptr(pulcbInstanceNameSize)) ; hDrt : void* -> "sptr" ; pulcbInstanceNameSize : DWORD* 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:
; HRESULT DrtGetInstanceNameSize(void* hDrt, DWORD* pulcbInstanceNameSize) #uselib "drt.dll" #cfunc global DrtGetInstanceNameSize "DrtGetInstanceNameSize" intptr, var ; res = DrtGetInstanceNameSize(hDrt, pulcbInstanceNameSize) ; hDrt : void* -> "intptr" ; pulcbInstanceNameSize : DWORD* 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。; HRESULT DrtGetInstanceNameSize(void* hDrt, DWORD* pulcbInstanceNameSize) #uselib "drt.dll" #cfunc global DrtGetInstanceNameSize "DrtGetInstanceNameSize" intptr, intptr ; res = DrtGetInstanceNameSize(hDrt, varptr(pulcbInstanceNameSize)) ; hDrt : void* -> "intptr" ; pulcbInstanceNameSize : DWORD* 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 (
drt = windows.NewLazySystemDLL("drt.dll")
procDrtGetInstanceNameSize = drt.NewProc("DrtGetInstanceNameSize")
)
// hDrt (void*), pulcbInstanceNameSize (DWORD* out)
r1, _, err := procDrtGetInstanceNameSize.Call(
uintptr(hDrt),
uintptr(pulcbInstanceNameSize),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // HRESULTfunction DrtGetInstanceNameSize(
hDrt: Pointer; // void*
pulcbInstanceNameSize: Pointer // DWORD* out
): Integer; stdcall;
external 'drt.dll' name 'DrtGetInstanceNameSize';result := DllCall("drt\DrtGetInstanceNameSize"
, "Ptr", hDrt ; void*
, "Ptr", pulcbInstanceNameSize ; DWORD* out
, "Int") ; return: HRESULT●DrtGetInstanceNameSize(hDrt, pulcbInstanceNameSize) = DLL("drt.dll", "int DrtGetInstanceNameSize(void*, void*)")
# 呼び出し: DrtGetInstanceNameSize(hDrt, pulcbInstanceNameSize)
# hDrt : void* -> "void*"
# pulcbInstanceNameSize : DWORD* 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 "drt" fn DrtGetInstanceNameSize(
hDrt: ?*anyopaque, // void*
pulcbInstanceNameSize: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) i32;proc DrtGetInstanceNameSize(
hDrt: pointer, # void*
pulcbInstanceNameSize: ptr uint32 # DWORD* out
): int32 {.importc: "DrtGetInstanceNameSize", stdcall, dynlib: "drt.dll".}pragma(lib, "drt");
extern(Windows)
int DrtGetInstanceNameSize(
void* hDrt, // void*
uint* pulcbInstanceNameSize // DWORD* out
);ccall((:DrtGetInstanceNameSize, "drt.dll"), stdcall, Int32,
(Ptr{Cvoid}, Ptr{UInt32}),
hDrt, pulcbInstanceNameSize)
# hDrt : void* -> Ptr{Cvoid}
# pulcbInstanceNameSize : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
int32_t DrtGetInstanceNameSize(
void* hDrt,
uint32_t* pulcbInstanceNameSize);
]]
local drt = ffi.load("drt")
-- drt.DrtGetInstanceNameSize(hDrt, pulcbInstanceNameSize)
-- hDrt : void*
-- pulcbInstanceNameSize : DWORD* 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('drt.dll');
const DrtGetInstanceNameSize = lib.func('__stdcall', 'DrtGetInstanceNameSize', 'int32_t', ['void *', 'uint32_t *']);
// DrtGetInstanceNameSize(hDrt, pulcbInstanceNameSize)
// hDrt : void* -> 'void *'
// pulcbInstanceNameSize : DWORD* out -> '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("drt.dll", {
DrtGetInstanceNameSize: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.DrtGetInstanceNameSize(hDrt, pulcbInstanceNameSize)
// hDrt : void* -> "pointer"
// pulcbInstanceNameSize : DWORD* 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
int32_t DrtGetInstanceNameSize(
void* hDrt,
uint32_t* pulcbInstanceNameSize);
C, "drt.dll");
// $ffi->DrtGetInstanceNameSize(hDrt, pulcbInstanceNameSize);
// hDrt : void*
// pulcbInstanceNameSize : DWORD* out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Drt extends StdCallLibrary {
Drt INSTANCE = Native.load("drt", Drt.class);
int DrtGetInstanceNameSize(
Pointer hDrt, // void*
IntByReference pulcbInstanceNameSize // DWORD* out
);
}@[Link("drt")]
lib Libdrt
fun DrtGetInstanceNameSize = DrtGetInstanceNameSize(
hDrt : Void*, # void*
pulcbInstanceNameSize : UInt32* # DWORD* out
) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef DrtGetInstanceNameSizeNative = Int32 Function(Pointer<Void>, Pointer<Uint32>);
typedef DrtGetInstanceNameSizeDart = int Function(Pointer<Void>, Pointer<Uint32>);
final DrtGetInstanceNameSize = DynamicLibrary.open('drt.dll')
.lookupFunction<DrtGetInstanceNameSizeNative, DrtGetInstanceNameSizeDart>('DrtGetInstanceNameSize');
// hDrt : void* -> Pointer<Void>
// pulcbInstanceNameSize : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
function DrtGetInstanceNameSize(
hDrt: Pointer; // void*
pulcbInstanceNameSize: Pointer // DWORD* out
): Integer; stdcall;
external 'drt.dll' name 'DrtGetInstanceNameSize';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "DrtGetInstanceNameSize"
c_DrtGetInstanceNameSize :: Ptr () -> Ptr Word32 -> IO Int32
-- hDrt : void* -> Ptr ()
-- pulcbInstanceNameSize : DWORD* out -> Ptr 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 drtgetinstancenamesize =
foreign "DrtGetInstanceNameSize"
((ptr void) @-> (ptr uint32_t) @-> returning int32_t)
(* hDrt : void* -> (ptr void) *)
(* pulcbInstanceNameSize : DWORD* out -> (ptr 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 drt (t "drt.dll"))
(cffi:use-foreign-library drt)
(cffi:defcfun ("DrtGetInstanceNameSize" drt-get-instance-name-size :convention :stdcall) :int32
(h-drt :pointer) ; void*
(pulcb-instance-name-size :pointer)) ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $DrtGetInstanceNameSize = Win32::API::More->new('drt',
'int DrtGetInstanceNameSize(LPVOID hDrt, LPVOID pulcbInstanceNameSize)');
# my $ret = $DrtGetInstanceNameSize->Call($hDrt, $pulcbInstanceNameSize);
# hDrt : void* -> LPVOID
# pulcbInstanceNameSize : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。