GetErrorInfo

// OLEAUT32.dll
#include <windows.h>

HRESULT GetErrorInfo(
    DWORD dwReserved,
    IErrorInfo** pperrinfo
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function GetErrorInfo(
    dwReserved As UInteger,   ' DWORD
    pperrinfo As IntPtr   ' IErrorInfo** out
) As Integer
End Function

' dwReserved : DWORD
' pperrinfo : IErrorInfo** out
Declare PtrSafe Function GetErrorInfo Lib "oleaut32" ( _
    ByVal dwReserved As Long, _
    ByVal pperrinfo 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

GetErrorInfo = ctypes.windll.oleaut32.GetErrorInfo
GetErrorInfo.restype = ctypes.c_int
GetErrorInfo.argtypes = [
    wintypes.DWORD,  # dwReserved : DWORD
    ctypes.c_void_p,  # pperrinfo : IErrorInfo** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
GetErrorInfo = Fiddle::Function.new(
  lib['GetErrorInfo'],
  [
    -Fiddle::TYPE_INT,  # dwReserved : DWORD
    Fiddle::TYPE_VOIDP,  # pperrinfo : IErrorInfo** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn GetErrorInfo(
        dwReserved: u32,  // DWORD
        pperrinfo: *mut *mut core::ffi::c_void  // IErrorInfo** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int GetErrorInfo(uint dwReserved, IntPtr pperrinfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_GetErrorInfo' -Namespace Win32 -PassThru
# $api::GetErrorInfo(dwReserved, pperrinfo)

#uselib "OLEAUT32.dll"
#func global GetErrorInfo "GetErrorInfo" sptr, sptr
; GetErrorInfo dwReserved, pperrinfo   ; 戻り値は stat
; dwReserved : DWORD -> "sptr"
; pperrinfo : IErrorInfo** 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 "OLEAUT32.dll"
#cfunc global GetErrorInfo "GetErrorInfo" int, sptr
; res = GetErrorInfo(dwReserved, pperrinfo)
; dwReserved : DWORD -> "int"
; pperrinfo : IErrorInfo** out -> "sptr"

; HRESULT GetErrorInfo(DWORD dwReserved, IErrorInfo** pperrinfo)
#uselib "OLEAUT32.dll"
#cfunc global GetErrorInfo "GetErrorInfo" int, intptr
; res = GetErrorInfo(dwReserved, pperrinfo)
; dwReserved : DWORD -> "int"
; pperrinfo : IErrorInfo** out -> "intptr"

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

var (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procGetErrorInfo = oleaut32.NewProc("GetErrorInfo")
)

// dwReserved (DWORD), pperrinfo (IErrorInfo** out)
r1, _, err := procGetErrorInfo.Call(
	uintptr(dwReserved),
	uintptr(pperrinfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetErrorInfo(
  dwReserved: DWORD;   // DWORD
  pperrinfo: Pointer   // IErrorInfo** out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'GetErrorInfo';

result := DllCall("OLEAUT32\GetErrorInfo"
    , "UInt", dwReserved   ; DWORD
    , "Ptr", pperrinfo   ; IErrorInfo** out
    , "Int")   ; return: HRESULT

●GetErrorInfo(dwReserved, pperrinfo) = DLL("OLEAUT32.dll", "int GetErrorInfo(dword, void*)")
# 呼び出し: GetErrorInfo(dwReserved, pperrinfo)
# dwReserved : DWORD -> "dword"
# pperrinfo : IErrorInfo** 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)。