LoadIFilterEx

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

HRESULT LoadIFilterEx(
    LPCWSTR pwcsPath,
    DWORD dwFlags,
    const GUID* riid,
    void** ppIUnk
);

<DllImport("query.dll", ExactSpelling:=True)>
Public Shared Function LoadIFilterEx(
    <MarshalAs(UnmanagedType.LPWStr)> pwcsPath As String,   ' LPCWSTR
    dwFlags As UInteger,   ' DWORD
    ByRef riid As Guid,   ' GUID*
    ppIUnk As IntPtr   ' void** out
) As Integer
End Function

' pwcsPath : LPCWSTR
' dwFlags : DWORD
' riid : GUID*
' ppIUnk : void** out
Declare PtrSafe Function LoadIFilterEx Lib "query" ( _
    ByVal pwcsPath As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal riid As LongPtr, _
    ByVal ppIUnk 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

LoadIFilterEx = ctypes.windll.query.LoadIFilterEx
LoadIFilterEx.restype = ctypes.c_int
LoadIFilterEx.argtypes = [
    wintypes.LPCWSTR,  # pwcsPath : LPCWSTR
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # ppIUnk : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('query.dll')
LoadIFilterEx = Fiddle::Function.new(
  lib['LoadIFilterEx'],
  [
    Fiddle::TYPE_VOIDP,  # pwcsPath : LPCWSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # ppIUnk : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "query")]
extern "system" {
    fn LoadIFilterEx(
        pwcsPath: *const u16,  // LPCWSTR
        dwFlags: u32,  // DWORD
        riid: *const GUID,  // GUID*
        ppIUnk: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("query.dll")]
public static extern int LoadIFilterEx([MarshalAs(UnmanagedType.LPWStr)] string pwcsPath, uint dwFlags, ref Guid riid, IntPtr ppIUnk);
"@
$api = Add-Type -MemberDefinition $sig -Name 'query_LoadIFilterEx' -Namespace Win32 -PassThru
# $api::LoadIFilterEx(pwcsPath, dwFlags, riid, ppIUnk)

#uselib "query.dll"
#func global LoadIFilterEx "LoadIFilterEx" sptr, sptr, sptr, sptr
; LoadIFilterEx pwcsPath, dwFlags, varptr(riid), ppIUnk   ; 戻り値は stat
; pwcsPath : LPCWSTR -> "sptr"
; dwFlags : DWORD -> "sptr"
; riid : GUID* -> "sptr"
; ppIUnk : void** 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 "query.dll"
#cfunc global LoadIFilterEx "LoadIFilterEx" wstr, int, var, sptr
; res = LoadIFilterEx(pwcsPath, dwFlags, riid, ppIUnk)
; pwcsPath : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; riid : GUID* -> "var"
; ppIUnk : void** out -> "sptr"
; ※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 LoadIFilterEx(LPCWSTR pwcsPath, DWORD dwFlags, GUID* riid, void** ppIUnk)
#uselib "query.dll"
#cfunc global LoadIFilterEx "LoadIFilterEx" wstr, int, var, intptr
; res = LoadIFilterEx(pwcsPath, dwFlags, riid, ppIUnk)
; pwcsPath : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"
; riid : GUID* -> "var"
; ppIUnk : void** out -> "intptr"
; ※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。

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

var (
	query = windows.NewLazySystemDLL("query.dll")
	procLoadIFilterEx = query.NewProc("LoadIFilterEx")
)

// pwcsPath (LPCWSTR), dwFlags (DWORD), riid (GUID*), ppIUnk (void** out)
r1, _, err := procLoadIFilterEx.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwcsPath))),
	uintptr(dwFlags),
	uintptr(riid),
	uintptr(ppIUnk),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function LoadIFilterEx(
  pwcsPath: PWideChar;   // LPCWSTR
  dwFlags: DWORD;   // DWORD
  riid: PGUID;   // GUID*
  ppIUnk: Pointer   // void** out
): Integer; stdcall;
  external 'query.dll' name 'LoadIFilterEx';

result := DllCall("query\LoadIFilterEx"
    , "WStr", pwcsPath   ; LPCWSTR
    , "UInt", dwFlags   ; DWORD
    , "Ptr", riid   ; GUID*
    , "Ptr", ppIUnk   ; void** out
    , "Int")   ; return: HRESULT

●LoadIFilterEx(pwcsPath, dwFlags, riid, ppIUnk) = DLL("query.dll", "int LoadIFilterEx(char*, dword, void*, void*)")
# 呼び出し: LoadIFilterEx(pwcsPath, dwFlags, riid, ppIUnk)
# pwcsPath : LPCWSTR -> "char*"
# dwFlags : DWORD -> "dword"
# riid : GUID* -> "void*"
# ppIUnk : void** 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)。