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GetCORSystemDirectory

関数

CLRランタイムがインストールされているシステムディレクトリを取得する。

DLLMSCorEE.dll呼出規約winapi

シグネチャ

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

HRESULT GetCORSystemDirectory(
    LPWSTR pbuffer,
    DWORD cchBuffer,
    DWORD* dwLength
);

パラメーター

名前	型	方向
pbuffer	LPWSTR	out
cchBuffer	DWORD	in
dwLength	DWORD*	inout

戻り値の型: HRESULT

各言語での呼び出し定義

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

HRESULT GetCORSystemDirectory(
    LPWSTR pbuffer,
    DWORD cchBuffer,
    DWORD* dwLength
);

[DllImport("MSCorEE.dll", ExactSpelling = true)]
static extern int GetCORSystemDirectory(
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pbuffer,   // LPWSTR out
    uint cchBuffer,   // DWORD
    ref uint dwLength   // DWORD* in/out
);

<DllImport("MSCorEE.dll", ExactSpelling:=True)>
Public Shared Function GetCORSystemDirectory(
    <MarshalAs(UnmanagedType.LPWStr)> pbuffer As System.Text.StringBuilder,   ' LPWSTR out
    cchBuffer As UInteger,   ' DWORD
    ByRef dwLength As UInteger   ' DWORD* in/out
) As Integer
End Function

' pbuffer : LPWSTR out
' cchBuffer : DWORD
' dwLength : DWORD* in/out
Declare PtrSafe Function GetCORSystemDirectory Lib "mscoree" ( _
    ByVal pbuffer As LongPtr, _
    ByVal cchBuffer As Long, _
    ByRef dwLength 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

GetCORSystemDirectory = ctypes.windll.mscoree.GetCORSystemDirectory
GetCORSystemDirectory.restype = ctypes.c_int
GetCORSystemDirectory.argtypes = [
    wintypes.LPWSTR,  # pbuffer : LPWSTR out
    wintypes.DWORD,  # cchBuffer : DWORD
    ctypes.POINTER(wintypes.DWORD),  # dwLength : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSCorEE.dll')
GetCORSystemDirectory = Fiddle::Function.new(
  lib['GetCORSystemDirectory'],
  [
    Fiddle::TYPE_VOIDP,  # pbuffer : LPWSTR out
    -Fiddle::TYPE_INT,  # cchBuffer : DWORD
    Fiddle::TYPE_VOIDP,  # dwLength : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mscoree")]
extern "system" {
    fn GetCORSystemDirectory(
        pbuffer: *mut u16,  // LPWSTR out
        cchBuffer: u32,  // DWORD
        dwLength: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MSCorEE.dll")]
public static extern int GetCORSystemDirectory([MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pbuffer, uint cchBuffer, ref uint dwLength);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSCorEE_GetCORSystemDirectory' -Namespace Win32 -PassThru
# $api::GetCORSystemDirectory(pbuffer, cchBuffer, dwLength)

#uselib "MSCorEE.dll"
#func global GetCORSystemDirectory "GetCORSystemDirectory" sptr, sptr, sptr
; GetCORSystemDirectory varptr(pbuffer), cchBuffer, varptr(dwLength)   ; 戻り値は stat
; pbuffer : LPWSTR out -> "sptr"
; cchBuffer : DWORD -> "sptr"
; dwLength : 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 "MSCorEE.dll"
#cfunc global GetCORSystemDirectory "GetCORSystemDirectory" var, int, var
; res = GetCORSystemDirectory(pbuffer, cchBuffer, dwLength)
; pbuffer : LPWSTR out -> "var"
; cchBuffer : DWORD -> "int"
; dwLength : 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 "MSCorEE.dll"
#cfunc global GetCORSystemDirectory "GetCORSystemDirectory" sptr, int, sptr
; res = GetCORSystemDirectory(varptr(pbuffer), cchBuffer, varptr(dwLength))
; pbuffer : LPWSTR out -> "sptr"
; cchBuffer : DWORD -> "int"
; dwLength : 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:

; HRESULT GetCORSystemDirectory(LPWSTR pbuffer, DWORD cchBuffer, DWORD* dwLength)
#uselib "MSCorEE.dll"
#cfunc global GetCORSystemDirectory "GetCORSystemDirectory" var, int, var
; res = GetCORSystemDirectory(pbuffer, cchBuffer, dwLength)
; pbuffer : LPWSTR out -> "var"
; cchBuffer : DWORD -> "int"
; dwLength : 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。; HRESULT GetCORSystemDirectory(LPWSTR pbuffer, DWORD cchBuffer, DWORD* dwLength)
#uselib "MSCorEE.dll"
#cfunc global GetCORSystemDirectory "GetCORSystemDirectory" intptr, int, intptr
; res = GetCORSystemDirectory(varptr(pbuffer), cchBuffer, varptr(dwLength))
; pbuffer : LPWSTR out -> "intptr"
; cchBuffer : DWORD -> "int"
; dwLength : 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 (
	mscoree = windows.NewLazySystemDLL("MSCorEE.dll")
	procGetCORSystemDirectory = mscoree.NewProc("GetCORSystemDirectory")
)

// pbuffer (LPWSTR out), cchBuffer (DWORD), dwLength (DWORD* in/out)
r1, _, err := procGetCORSystemDirectory.Call(
	uintptr(pbuffer),
	uintptr(cchBuffer),
	uintptr(dwLength),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetCORSystemDirectory(
  pbuffer: PWideChar;   // LPWSTR out
  cchBuffer: DWORD;   // DWORD
  dwLength: Pointer   // DWORD* in/out
): Integer; stdcall;
  external 'MSCorEE.dll' name 'GetCORSystemDirectory';

result := DllCall("MSCorEE\GetCORSystemDirectory"
    , "Ptr", pbuffer   ; LPWSTR out
    , "UInt", cchBuffer   ; DWORD
    , "Ptr", dwLength   ; DWORD* in/out
    , "Int")   ; return: HRESULT

●GetCORSystemDirectory(pbuffer, cchBuffer, dwLength) = DLL("MSCorEE.dll", "int GetCORSystemDirectory(char*, dword, void*)")
# 呼び出し: GetCORSystemDirectory(pbuffer, cchBuffer, dwLength)
# pbuffer : LPWSTR out -> "char*"
# cchBuffer : DWORD -> "dword"
# dwLength : 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)。