GetRealProcAddress

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

HRESULT GetRealProcAddress(
    LPCSTR pwszProcName,
    void** ppv
);

<DllImport("MSCorEE.dll", ExactSpelling:=True)>
Public Shared Function GetRealProcAddress(
    <MarshalAs(UnmanagedType.LPStr)> pwszProcName As String,   ' LPCSTR
    ppv As IntPtr   ' void** in/out
) As Integer
End Function

' pwszProcName : LPCSTR
' ppv : void** in/out
Declare PtrSafe Function GetRealProcAddress Lib "mscoree" ( _
    ByVal pwszProcName As String, _
    ByVal ppv As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetRealProcAddress = ctypes.windll.mscoree.GetRealProcAddress
GetRealProcAddress.restype = ctypes.c_int
GetRealProcAddress.argtypes = [
    wintypes.LPCSTR,  # pwszProcName : LPCSTR
    ctypes.c_void_p,  # ppv : void** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MSCorEE.dll')
GetRealProcAddress = Fiddle::Function.new(
  lib['GetRealProcAddress'],
  [
    Fiddle::TYPE_VOIDP,  # pwszProcName : LPCSTR
    Fiddle::TYPE_VOIDP,  # ppv : void** in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mscoree")]
extern "system" {
    fn GetRealProcAddress(
        pwszProcName: *const u8,  // LPCSTR
        ppv: *mut *mut ()  // void** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MSCorEE.dll")]
public static extern int GetRealProcAddress([MarshalAs(UnmanagedType.LPStr)] string pwszProcName, IntPtr ppv);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MSCorEE_GetRealProcAddress' -Namespace Win32 -PassThru
# $api::GetRealProcAddress(pwszProcName, ppv)

#uselib "MSCorEE.dll"
#func global GetRealProcAddress "GetRealProcAddress" sptr, sptr
; GetRealProcAddress pwszProcName, ppv   ; 戻り値は stat
; pwszProcName : LPCSTR -> "sptr"
; ppv : void** 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。

#uselib "MSCorEE.dll"
#cfunc global GetRealProcAddress "GetRealProcAddress" str, sptr
; res = GetRealProcAddress(pwszProcName, ppv)
; pwszProcName : LPCSTR -> "str"
; ppv : void** in/out -> "sptr"

; HRESULT GetRealProcAddress(LPCSTR pwszProcName, void** ppv)
#uselib "MSCorEE.dll"
#cfunc global GetRealProcAddress "GetRealProcAddress" str, intptr
; res = GetRealProcAddress(pwszProcName, ppv)
; pwszProcName : LPCSTR -> "str"
; ppv : void** in/out -> "intptr"

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

var (
	mscoree = windows.NewLazySystemDLL("MSCorEE.dll")
	procGetRealProcAddress = mscoree.NewProc("GetRealProcAddress")
)

// pwszProcName (LPCSTR), ppv (void** in/out)
r1, _, err := procGetRealProcAddress.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pwszProcName))),
	uintptr(ppv),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetRealProcAddress(
  pwszProcName: PAnsiChar;   // LPCSTR
  ppv: Pointer   // void** in/out
): Integer; stdcall;
  external 'MSCorEE.dll' name 'GetRealProcAddress';

result := DllCall("MSCorEE\GetRealProcAddress"
    , "AStr", pwszProcName   ; LPCSTR
    , "Ptr", ppv   ; void** in/out
    , "Int")   ; return: HRESULT

●GetRealProcAddress(pwszProcName, ppv) = DLL("MSCorEE.dll", "int GetRealProcAddress(char*, void*)")
# 呼び出し: GetRealProcAddress(pwszProcName, ppv)
# pwszProcName : LPCSTR -> "char*"
# ppv : void** 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)。