ホーム › System.Memory › RtlCrc64
RtlCrc64
関数バッファの64ビットCRCチェックサムを計算する。
シグネチャ
// ntdll.dll
#include <windows.h>
ULONGLONG RtlCrc64(
const void* Buffer,
UINT_PTR Size,
ULONGLONG InitialCrc
);パラメーター
| 名前 | 型 | 方向 |
|---|---|---|
| Buffer | void* | in |
| Size | UINT_PTR | in |
| InitialCrc | ULONGLONG | in |
戻り値の型: ULONGLONG
各言語での呼び出し定義
// ntdll.dll
#include <windows.h>
ULONGLONG RtlCrc64(
const void* Buffer,
UINT_PTR Size,
ULONGLONG InitialCrc
);[DllImport("ntdll.dll", ExactSpelling = true)]
static extern ulong RtlCrc64(
IntPtr Buffer, // void*
UIntPtr Size, // UINT_PTR
ulong InitialCrc // ULONGLONG
);<DllImport("ntdll.dll", ExactSpelling:=True)>
Public Shared Function RtlCrc64(
Buffer As IntPtr, ' void*
Size As UIntPtr, ' UINT_PTR
InitialCrc As ULong ' ULONGLONG
) As ULong
End Function' Buffer : void*
' Size : UINT_PTR
' InitialCrc : ULONGLONG
Declare PtrSafe Function RtlCrc64 Lib "ntdll" ( _
ByVal Buffer As LongPtr, _
ByVal Size As LongPtr, _
ByVal InitialCrc As LongLong) As LongLong
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
RtlCrc64 = ctypes.windll.ntdll.RtlCrc64
RtlCrc64.restype = ctypes.c_ulonglong
RtlCrc64.argtypes = [
ctypes.POINTER(None), # Buffer : void*
ctypes.c_size_t, # Size : UINT_PTR
ctypes.c_ulonglong, # InitialCrc : ULONGLONG
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('ntdll.dll')
RtlCrc64 = Fiddle::Function.new(
lib['RtlCrc64'],
[
Fiddle::TYPE_VOIDP, # Buffer : void*
Fiddle::TYPE_UINTPTR_T, # Size : UINT_PTR
-Fiddle::TYPE_LONG_LONG, # InitialCrc : ULONGLONG
],
-Fiddle::TYPE_LONG_LONG)#[link(name = "ntdll")]
extern "system" {
fn RtlCrc64(
Buffer: *const (), // void*
Size: usize, // UINT_PTR
InitialCrc: u64 // ULONGLONG
) -> u64;
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("ntdll.dll")]
public static extern ulong RtlCrc64(IntPtr Buffer, UIntPtr Size, ulong InitialCrc);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ntdll_RtlCrc64' -Namespace Win32 -PassThru
# $api::RtlCrc64(Buffer, Size, InitialCrc)#uselib "ntdll.dll"
#func global RtlCrc64 "RtlCrc64" sptr, sptr, sptr
; RtlCrc64 Buffer, Size, InitialCrc ; 戻り値は stat
; Buffer : void* -> "sptr"
; Size : UINT_PTR -> "sptr"
; InitialCrc : ULONGLONG -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 "ntdll.dll"
#cfunc global RtlCrc64 "RtlCrc64" sptr, sptr, int64
; res = RtlCrc64(Buffer, Size, InitialCrc)
; Buffer : void* -> "sptr"
; Size : UINT_PTR -> "sptr"
; InitialCrc : ULONGLONG -> "int64"
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。; ULONGLONG RtlCrc64(void* Buffer, UINT_PTR Size, ULONGLONG InitialCrc)
#uselib "ntdll.dll"
#cfunc global RtlCrc64 "RtlCrc64" intptr, intptr, int64
; res = RtlCrc64(Buffer, Size, InitialCrc)
; Buffer : void* -> "intptr"
; Size : UINT_PTR -> "intptr"
; InitialCrc : ULONGLONG -> "int64"import (
"golang.org/x/sys/windows"
"unsafe"
)
var (
ntdll = windows.NewLazySystemDLL("ntdll.dll")
procRtlCrc64 = ntdll.NewProc("RtlCrc64")
)
// Buffer (void*), Size (UINT_PTR), InitialCrc (ULONGLONG)
r1, _, err := procRtlCrc64.Call(
uintptr(Buffer),
uintptr(Size),
uintptr(InitialCrc),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // ULONGLONGfunction RtlCrc64(
Buffer: Pointer; // void*
Size: NativeUInt; // UINT_PTR
InitialCrc: UInt64 // ULONGLONG
): UInt64; stdcall;
external 'ntdll.dll' name 'RtlCrc64';result := DllCall("ntdll\RtlCrc64"
, "Ptr", Buffer ; void*
, "UPtr", Size ; UINT_PTR
, "Int64", InitialCrc ; ULONGLONG
, "Int64") ; return: ULONGLONG●RtlCrc64(Buffer, Size, InitialCrc) = DLL("ntdll.dll", "qword RtlCrc64(void*, int, qword)")
# 呼び出し: RtlCrc64(Buffer, Size, InitialCrc)
# Buffer : void* -> "void*"
# Size : UINT_PTR -> "int"
# InitialCrc : ULONGLONG -> "qword"
# 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)。