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RtlUniform

関数

一様分布の擬似乱数を生成する。

DLLntdll.dll呼出規約winapi

シグネチャ

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

DWORD RtlUniform(
    DWORD* Seed
);

パラメーター

名前	型	方向
Seed	DWORD*	inout

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD RtlUniform(
    DWORD* Seed
);

[DllImport("ntdll.dll", ExactSpelling = true)]
static extern uint RtlUniform(
    ref uint Seed   // DWORD* in/out
);

<DllImport("ntdll.dll", ExactSpelling:=True)>
Public Shared Function RtlUniform(
    ByRef Seed As UInteger   ' DWORD* in/out
) As UInteger
End Function

' Seed : DWORD* in/out
Declare PtrSafe Function RtlUniform Lib "ntdll" ( _
    ByRef Seed 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

RtlUniform = ctypes.windll.ntdll.RtlUniform
RtlUniform.restype = wintypes.DWORD
RtlUniform.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # Seed : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ntdll.dll')
RtlUniform = Fiddle::Function.new(
  lib['RtlUniform'],
  [
    Fiddle::TYPE_VOIDP,  # Seed : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "ntdll")]
extern "system" {
    fn RtlUniform(
        Seed: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ntdll.dll")]
public static extern uint RtlUniform(ref uint Seed);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ntdll_RtlUniform' -Namespace Win32 -PassThru
# $api::RtlUniform(Seed)

#uselib "ntdll.dll"
#func global RtlUniform "RtlUniform" sptr
; RtlUniform varptr(Seed)   ; 戻り値は stat
; Seed : DWORD* 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 "ntdll.dll"
#cfunc global RtlUniform "RtlUniform" var
; res = RtlUniform(Seed)
; Seed : DWORD* 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。#uselib "ntdll.dll"
#cfunc global RtlUniform "RtlUniform" sptr
; res = RtlUniform(varptr(Seed))
; Seed : DWORD* in/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:

; DWORD RtlUniform(DWORD* Seed)
#uselib "ntdll.dll"
#cfunc global RtlUniform "RtlUniform" var
; res = RtlUniform(Seed)
; Seed : DWORD* 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。; DWORD RtlUniform(DWORD* Seed)
#uselib "ntdll.dll"
#cfunc global RtlUniform "RtlUniform" intptr
; res = RtlUniform(varptr(Seed))
; Seed : DWORD* in/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 (
	ntdll = windows.NewLazySystemDLL("ntdll.dll")
	procRtlUniform = ntdll.NewProc("RtlUniform")
)

// Seed (DWORD* in/out)
r1, _, err := procRtlUniform.Call(
	uintptr(Seed),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function RtlUniform(
  Seed: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'ntdll.dll' name 'RtlUniform';

result := DllCall("ntdll\RtlUniform"
    , "Ptr", Seed   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●RtlUniform(Seed) = DLL("ntdll.dll", "dword RtlUniform(void*)")
# 呼び出し: RtlUniform(Seed)
# Seed : DWORD* 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)。