LZSeek

関数

LZ展開ファイル内のファイルポインタを移動する。

DLLKERNEL32.dll呼出規約winapi対応OSWindows XP 以降

シグネチャ

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

INT LZSeek(
    INT hFile,
    INT lOffset,
    INT iOrigin
);

パラメーター

名前	型	方向
hFile	INT	in
lOffset	INT	in
iOrigin	INT	in

戻り値の型: INT

各言語での呼び出し定義

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

INT LZSeek(
    INT hFile,
    INT lOffset,
    INT iOrigin
);

[DllImport("KERNEL32.dll", ExactSpelling = true)]
static extern int LZSeek(
    int hFile,   // INT
    int lOffset,   // INT
    int iOrigin   // INT
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function LZSeek(
    hFile As Integer,   ' INT
    lOffset As Integer,   ' INT
    iOrigin As Integer   ' INT
) As Integer
End Function

' hFile : INT
' lOffset : INT
' iOrigin : INT
Declare PtrSafe Function LZSeek Lib "kernel32" ( _
    ByVal hFile As Long, _
    ByVal lOffset As Long, _
    ByVal iOrigin 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

LZSeek = ctypes.windll.kernel32.LZSeek
LZSeek.restype = ctypes.c_int
LZSeek.argtypes = [
    ctypes.c_int,  # hFile : INT
    ctypes.c_int,  # lOffset : INT
    ctypes.c_int,  # iOrigin : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
LZSeek = Fiddle::Function.new(
  lib['LZSeek'],
  [
    Fiddle::TYPE_INT,  # hFile : INT
    Fiddle::TYPE_INT,  # lOffset : INT
    Fiddle::TYPE_INT,  # iOrigin : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn LZSeek(
        hFile: i32,  // INT
        lOffset: i32,  // INT
        iOrigin: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern int LZSeek(int hFile, int lOffset, int iOrigin);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_LZSeek' -Namespace Win32 -PassThru
# $api::LZSeek(hFile, lOffset, iOrigin)

#uselib "KERNEL32.dll"
#func global LZSeek "LZSeek" sptr, sptr, sptr
; LZSeek hFile, lOffset, iOrigin   ; 戻り値は stat
; hFile : INT -> "sptr"
; lOffset : INT -> "sptr"
; iOrigin : INT -> "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 LZSeek "LZSeek" int, int, int
; res = LZSeek(hFile, lOffset, iOrigin)
; hFile : INT -> "int"
; lOffset : INT -> "int"
; iOrigin : INT -> "int"

; INT LZSeek(INT hFile, INT lOffset, INT iOrigin)
#uselib "KERNEL32.dll"
#cfunc global LZSeek "LZSeek" int, int, int
; res = LZSeek(hFile, lOffset, iOrigin)
; hFile : INT -> "int"
; lOffset : INT -> "int"
; iOrigin : INT -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procLZSeek = kernel32.NewProc("LZSeek")
)

// hFile (INT), lOffset (INT), iOrigin (INT)
r1, _, err := procLZSeek.Call(
	uintptr(hFile),
	uintptr(lOffset),
	uintptr(iOrigin),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function LZSeek(
  hFile: Integer;   // INT
  lOffset: Integer;   // INT
  iOrigin: Integer   // INT
): Integer; stdcall;
  external 'KERNEL32.dll' name 'LZSeek';

result := DllCall("KERNEL32\LZSeek"
    , "Int", hFile   ; INT
    , "Int", lOffset   ; INT
    , "Int", iOrigin   ; INT
    , "Int")   ; return: INT

●LZSeek(hFile, lOffset, iOrigin) = DLL("KERNEL32.dll", "int LZSeek(int, int, int)")
# 呼び出し: LZSeek(hFile, lOffset, iOrigin)
# hFile : INT -> "int"
# lOffset : INT -> "int"
# iOrigin : INT -> "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)。