Win32 API 日本語リファレンス
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CreatePipe

関数
読み書き用の匿名パイプを作成する。
DLLKERNEL32.dll呼出規約winapiSetLastErrorあり対応OSWindows 2000 以降

シグネチャ

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

BOOL CreatePipe(
    HANDLE* hReadPipe,
    HANDLE* hWritePipe,
    SECURITY_ATTRIBUTES* lpPipeAttributes,   // optional
    DWORD nSize
);

パラメーター

名前方向
hReadPipeHANDLE*out
hWritePipeHANDLE*out
lpPipeAttributesSECURITY_ATTRIBUTES*inoptional
nSizeDWORDin

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL CreatePipe(
    HANDLE* hReadPipe,
    HANDLE* hWritePipe,
    SECURITY_ATTRIBUTES* lpPipeAttributes,   // optional
    DWORD nSize
);
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", SetLastError = true, ExactSpelling = true)]
static extern bool CreatePipe(
    IntPtr hReadPipe,   // HANDLE* out
    IntPtr hWritePipe,   // HANDLE* out
    IntPtr lpPipeAttributes,   // SECURITY_ATTRIBUTES* optional
    uint nSize   // DWORD
);
<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreatePipe(
    hReadPipe As IntPtr,   ' HANDLE* out
    hWritePipe As IntPtr,   ' HANDLE* out
    lpPipeAttributes As IntPtr,   ' SECURITY_ATTRIBUTES* optional
    nSize As UInteger   ' DWORD
) As Boolean
End Function
' hReadPipe : HANDLE* out
' hWritePipe : HANDLE* out
' lpPipeAttributes : SECURITY_ATTRIBUTES* optional
' nSize : DWORD
Declare PtrSafe Function CreatePipe Lib "kernel32" ( _
    ByVal hReadPipe As LongPtr, _
    ByVal hWritePipe As LongPtr, _
    ByVal lpPipeAttributes As LongPtr, _
    ByVal nSize 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

CreatePipe = ctypes.windll.kernel32.CreatePipe
CreatePipe.restype = wintypes.BOOL
CreatePipe.argtypes = [
    ctypes.c_void_p,  # hReadPipe : HANDLE* out
    ctypes.c_void_p,  # hWritePipe : HANDLE* out
    ctypes.c_void_p,  # lpPipeAttributes : SECURITY_ATTRIBUTES* optional
    wintypes.DWORD,  # nSize : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
CreatePipe = Fiddle::Function.new(
  lib['CreatePipe'],
  [
    Fiddle::TYPE_VOIDP,  # hReadPipe : HANDLE* out
    Fiddle::TYPE_VOIDP,  # hWritePipe : HANDLE* out
    Fiddle::TYPE_VOIDP,  # lpPipeAttributes : SECURITY_ATTRIBUTES* optional
    -Fiddle::TYPE_INT,  # nSize : DWORD
  ],
  Fiddle::TYPE_INT)
#[link(name = "kernel32")]
extern "system" {
    fn CreatePipe(
        hReadPipe: *mut *mut core::ffi::c_void,  // HANDLE* out
        hWritePipe: *mut *mut core::ffi::c_void,  // HANDLE* out
        lpPipeAttributes: *mut SECURITY_ATTRIBUTES,  // SECURITY_ATTRIBUTES* optional
        nSize: u32  // DWORD
    ) -> 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 CreatePipe(IntPtr hReadPipe, IntPtr hWritePipe, IntPtr lpPipeAttributes, uint nSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_CreatePipe' -Namespace Win32 -PassThru
# $api::CreatePipe(hReadPipe, hWritePipe, lpPipeAttributes, nSize)
#uselib "KERNEL32.dll"
#func global CreatePipe "CreatePipe" sptr, sptr, sptr, sptr
; CreatePipe hReadPipe, hWritePipe, varptr(lpPipeAttributes), nSize   ; 戻り値は stat
; hReadPipe : HANDLE* out -> "sptr"
; hWritePipe : HANDLE* out -> "sptr"
; lpPipeAttributes : SECURITY_ATTRIBUTES* optional -> "sptr"
; nSize : DWORD -> "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 CreatePipe "CreatePipe" sptr, sptr, var, int
; res = CreatePipe(hReadPipe, hWritePipe, lpPipeAttributes, nSize)
; hReadPipe : HANDLE* out -> "sptr"
; hWritePipe : HANDLE* out -> "sptr"
; lpPipeAttributes : SECURITY_ATTRIBUTES* optional -> "var"
; nSize : DWORD -> "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。
出力引数:
; BOOL CreatePipe(HANDLE* hReadPipe, HANDLE* hWritePipe, SECURITY_ATTRIBUTES* lpPipeAttributes, DWORD nSize)
#uselib "KERNEL32.dll"
#cfunc global CreatePipe "CreatePipe" intptr, intptr, var, int
; res = CreatePipe(hReadPipe, hWritePipe, lpPipeAttributes, nSize)
; hReadPipe : HANDLE* out -> "intptr"
; hWritePipe : HANDLE* out -> "intptr"
; lpPipeAttributes : SECURITY_ATTRIBUTES* optional -> "var"
; nSize : DWORD -> "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。
import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procCreatePipe = kernel32.NewProc("CreatePipe")
)

// hReadPipe (HANDLE* out), hWritePipe (HANDLE* out), lpPipeAttributes (SECURITY_ATTRIBUTES* optional), nSize (DWORD)
r1, _, err := procCreatePipe.Call(
	uintptr(hReadPipe),
	uintptr(hWritePipe),
	uintptr(lpPipeAttributes),
	uintptr(nSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL
function CreatePipe(
  hReadPipe: Pointer;   // HANDLE* out
  hWritePipe: Pointer;   // HANDLE* out
  lpPipeAttributes: Pointer;   // SECURITY_ATTRIBUTES* optional
  nSize: DWORD   // DWORD
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'CreatePipe';
result := DllCall("KERNEL32\CreatePipe"
    , "Ptr", hReadPipe   ; HANDLE* out
    , "Ptr", hWritePipe   ; HANDLE* out
    , "Ptr", lpPipeAttributes   ; SECURITY_ATTRIBUTES* optional
    , "UInt", nSize   ; DWORD
    , "Int")   ; return: BOOL
●CreatePipe(hReadPipe, hWritePipe, lpPipeAttributes, nSize) = DLL("KERNEL32.dll", "bool CreatePipe(void*, void*, void*, dword)")
# 呼び出し: CreatePipe(hReadPipe, hWritePipe, lpPipeAttributes, nSize)
# hReadPipe : HANDLE* out -> "void*"
# hWritePipe : HANDLE* out -> "void*"
# lpPipeAttributes : SECURITY_ATTRIBUTES* optional -> "void*"
# nSize : DWORD -> "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)。