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SetEnvironmentStringsA

関数

ANSI環境ブロック全体を設定する。

DLLKERNEL32.dll文字セットANSI (-A)呼出規約winapi

シグネチャ

// KERNEL32.dll  (ANSI / -A)
#include <windows.h>

BOOL SetEnvironmentStringsA(
    LPSTR NewEnvironment
);

パラメーター

名前	型	方向
NewEnvironment	LPSTR	in

戻り値の型: BOOL

各言語での呼び出し定義

// KERNEL32.dll  (ANSI / -A)
#include <windows.h>

BOOL SetEnvironmentStringsA(
    LPSTR NewEnvironment
);

[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi, ExactSpelling = true)]
static extern bool SetEnvironmentStringsA(
    [MarshalAs(UnmanagedType.LPStr)] string NewEnvironment   // LPSTR
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SetEnvironmentStringsA(
    <MarshalAs(UnmanagedType.LPStr)> NewEnvironment As String   ' LPSTR
) As Boolean
End Function

' NewEnvironment : LPSTR
Declare PtrSafe Function SetEnvironmentStringsA Lib "kernel32" ( _
    ByVal NewEnvironment As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SetEnvironmentStringsA = ctypes.windll.kernel32.SetEnvironmentStringsA
SetEnvironmentStringsA.restype = wintypes.BOOL
SetEnvironmentStringsA.argtypes = [
    wintypes.LPCSTR,  # NewEnvironment : LPSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
SetEnvironmentStringsA = Fiddle::Function.new(
  lib['SetEnvironmentStringsA'],
  [
    Fiddle::TYPE_VOIDP,  # NewEnvironment : LPSTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn SetEnvironmentStringsA(
        NewEnvironment: *mut u8  // LPSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi)]
public static extern bool SetEnvironmentStringsA([MarshalAs(UnmanagedType.LPStr)] string NewEnvironment);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_SetEnvironmentStringsA' -Namespace Win32 -PassThru
# $api::SetEnvironmentStringsA(NewEnvironment)

#uselib "KERNEL32.dll"
#func global SetEnvironmentStringsA "SetEnvironmentStringsA" sptr
; SetEnvironmentStringsA NewEnvironment   ; 戻り値は stat
; NewEnvironment : LPSTR -> "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 SetEnvironmentStringsA "SetEnvironmentStringsA" str
; res = SetEnvironmentStringsA(NewEnvironment)
; NewEnvironment : LPSTR -> "str"

; BOOL SetEnvironmentStringsA(LPSTR NewEnvironment)
#uselib "KERNEL32.dll"
#cfunc global SetEnvironmentStringsA "SetEnvironmentStringsA" str
; res = SetEnvironmentStringsA(NewEnvironment)
; NewEnvironment : LPSTR -> "str"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procSetEnvironmentStringsA = kernel32.NewProc("SetEnvironmentStringsA")
)

// NewEnvironment (LPSTR)
r1, _, err := procSetEnvironmentStringsA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(NewEnvironment))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetEnvironmentStringsA(
  NewEnvironment: PAnsiChar   // LPSTR
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'SetEnvironmentStringsA';

result := DllCall("KERNEL32\SetEnvironmentStringsA"
    , "AStr", NewEnvironment   ; LPSTR
    , "Int")   ; return: BOOL

●SetEnvironmentStringsA(NewEnvironment) = DLL("KERNEL32.dll", "bool SetEnvironmentStringsA(char*)")
# 呼び出し: SetEnvironmentStringsA(NewEnvironment)
# NewEnvironment : LPSTR -> "char*"
# 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)。