RtlCompareMemory

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

UINT_PTR RtlCompareMemory(
    const void* Source1,
    const void* Source2,
    UINT_PTR Length
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function RtlCompareMemory(
    Source1 As IntPtr,   ' void*
    Source2 As IntPtr,   ' void*
    Length As UIntPtr   ' UINT_PTR
) As UIntPtr
End Function

' Source1 : void*
' Source2 : void*
' Length : UINT_PTR
Declare PtrSafe Function RtlCompareMemory Lib "kernel32" ( _
    ByVal Source1 As LongPtr, _
    ByVal Source2 As LongPtr, _
    ByVal Length As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

RtlCompareMemory = ctypes.windll.kernel32.RtlCompareMemory
RtlCompareMemory.restype = ctypes.c_size_t
RtlCompareMemory.argtypes = [
    ctypes.POINTER(None),  # Source1 : void*
    ctypes.POINTER(None),  # Source2 : void*
    ctypes.c_size_t,  # Length : UINT_PTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
RtlCompareMemory = Fiddle::Function.new(
  lib['RtlCompareMemory'],
  [
    Fiddle::TYPE_VOIDP,  # Source1 : void*
    Fiddle::TYPE_VOIDP,  # Source2 : void*
    Fiddle::TYPE_UINTPTR_T,  # Length : UINT_PTR
  ],
  Fiddle::TYPE_UINTPTR_T)

#[link(name = "kernel32")]
extern "system" {
    fn RtlCompareMemory(
        Source1: *const (),  // void*
        Source2: *const (),  // void*
        Length: usize  // UINT_PTR
    ) -> usize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern UIntPtr RtlCompareMemory(IntPtr Source1, IntPtr Source2, UIntPtr Length);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_RtlCompareMemory' -Namespace Win32 -PassThru
# $api::RtlCompareMemory(Source1, Source2, Length)

#uselib "KERNEL32.dll"
#func global RtlCompareMemory "RtlCompareMemory" sptr, sptr, sptr
; RtlCompareMemory Source1, Source2, Length   ; 戻り値は stat
; Source1 : void* -> "sptr"
; Source2 : void* -> "sptr"
; Length : UINT_PTR -> "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。

#uselib "KERNEL32.dll"
#cfunc global RtlCompareMemory "RtlCompareMemory" sptr, sptr, sptr
; res = RtlCompareMemory(Source1, Source2, Length)
; Source1 : void* -> "sptr"
; Source2 : void* -> "sptr"
; Length : UINT_PTR -> "sptr"

; UINT_PTR RtlCompareMemory(void* Source1, void* Source2, UINT_PTR Length)
#uselib "KERNEL32.dll"
#cfunc global RtlCompareMemory "RtlCompareMemory" intptr, intptr, intptr
; res = RtlCompareMemory(Source1, Source2, Length)
; Source1 : void* -> "intptr"
; Source2 : void* -> "intptr"
; Length : UINT_PTR -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procRtlCompareMemory = kernel32.NewProc("RtlCompareMemory")
)

// Source1 (void*), Source2 (void*), Length (UINT_PTR)
r1, _, err := procRtlCompareMemory.Call(
	uintptr(Source1),
	uintptr(Source2),
	uintptr(Length),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // UINT_PTR

function RtlCompareMemory(
  Source1: Pointer;   // void*
  Source2: Pointer;   // void*
  Length: NativeUInt   // UINT_PTR
): NativeUInt; stdcall;
  external 'KERNEL32.dll' name 'RtlCompareMemory';

result := DllCall("KERNEL32\RtlCompareMemory"
    , "Ptr", Source1   ; void*
    , "Ptr", Source2   ; void*
    , "UPtr", Length   ; UINT_PTR
    , "UPtr")   ; return: UINT_PTR

●RtlCompareMemory(Source1, Source2, Length) = DLL("KERNEL32.dll", "int RtlCompareMemory(void*, void*, int)")
# 呼び出し: RtlCompareMemory(Source1, Source2, Length)
# Source1 : void* -> "void*"
# Source2 : void* -> "void*"
# Length : UINT_PTR -> "int"
# 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)。