QueryPathOfRegTypeLib

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

HRESULT QueryPathOfRegTypeLib(
    const GUID* guid,
    WORD wMaj,
    WORD wMin,
    DWORD lcid,
    LPWSTR* lpbstrPathName
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function QueryPathOfRegTypeLib(
    ByRef guid As Guid,   ' GUID*
    wMaj As UShort,   ' WORD
    wMin As UShort,   ' WORD
    lcid As UInteger,   ' DWORD
    lpbstrPathName As IntPtr   ' LPWSTR* out
) As Integer
End Function

' guid : GUID*
' wMaj : WORD
' wMin : WORD
' lcid : DWORD
' lpbstrPathName : LPWSTR* out
Declare PtrSafe Function QueryPathOfRegTypeLib Lib "oleaut32" ( _
    ByVal guid As LongPtr, _
    ByVal wMaj As Integer, _
    ByVal wMin As Integer, _
    ByVal lcid As Long, _
    ByVal lpbstrPathName 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

QueryPathOfRegTypeLib = ctypes.windll.oleaut32.QueryPathOfRegTypeLib
QueryPathOfRegTypeLib.restype = ctypes.c_int
QueryPathOfRegTypeLib.argtypes = [
    ctypes.c_void_p,  # guid : GUID*
    ctypes.c_ushort,  # wMaj : WORD
    ctypes.c_ushort,  # wMin : WORD
    wintypes.DWORD,  # lcid : DWORD
    ctypes.c_void_p,  # lpbstrPathName : LPWSTR* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
QueryPathOfRegTypeLib = Fiddle::Function.new(
  lib['QueryPathOfRegTypeLib'],
  [
    Fiddle::TYPE_VOIDP,  # guid : GUID*
    -Fiddle::TYPE_SHORT,  # wMaj : WORD
    -Fiddle::TYPE_SHORT,  # wMin : WORD
    -Fiddle::TYPE_INT,  # lcid : DWORD
    Fiddle::TYPE_VOIDP,  # lpbstrPathName : LPWSTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn QueryPathOfRegTypeLib(
        guid: *const GUID,  // GUID*
        wMaj: u16,  // WORD
        wMin: u16,  // WORD
        lcid: u32,  // DWORD
        lpbstrPathName: *mut *mut u16  // LPWSTR* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int QueryPathOfRegTypeLib(ref Guid guid, ushort wMaj, ushort wMin, uint lcid, IntPtr lpbstrPathName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_QueryPathOfRegTypeLib' -Namespace Win32 -PassThru
# $api::QueryPathOfRegTypeLib(guid, wMaj, wMin, lcid, lpbstrPathName)

#uselib "OLEAUT32.dll"
#func global QueryPathOfRegTypeLib "QueryPathOfRegTypeLib" sptr, sptr, sptr, sptr, sptr
; QueryPathOfRegTypeLib varptr(guid), wMaj, wMin, lcid, varptr(lpbstrPathName)   ; 戻り値は stat
; guid : GUID* -> "sptr"
; wMaj : WORD -> "sptr"
; wMin : WORD -> "sptr"
; lcid : DWORD -> "sptr"
; lpbstrPathName : LPWSTR* 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 QueryPathOfRegTypeLib "QueryPathOfRegTypeLib" var, int, int, int, var
; res = QueryPathOfRegTypeLib(guid, wMaj, wMin, lcid, lpbstrPathName)
; guid : GUID* -> "var"
; wMaj : WORD -> "int"
; wMin : WORD -> "int"
; lcid : DWORD -> "int"
; lpbstrPathName : LPWSTR* 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 QueryPathOfRegTypeLib(GUID* guid, WORD wMaj, WORD wMin, DWORD lcid, LPWSTR* lpbstrPathName)
#uselib "OLEAUT32.dll"
#cfunc global QueryPathOfRegTypeLib "QueryPathOfRegTypeLib" var, int, int, int, var
; res = QueryPathOfRegTypeLib(guid, wMaj, wMin, lcid, lpbstrPathName)
; guid : GUID* -> "var"
; wMaj : WORD -> "int"
; wMin : WORD -> "int"
; lcid : DWORD -> "int"
; lpbstrPathName : LPWSTR* 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。

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

var (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procQueryPathOfRegTypeLib = oleaut32.NewProc("QueryPathOfRegTypeLib")
)

// guid (GUID*), wMaj (WORD), wMin (WORD), lcid (DWORD), lpbstrPathName (LPWSTR* out)
r1, _, err := procQueryPathOfRegTypeLib.Call(
	uintptr(guid),
	uintptr(wMaj),
	uintptr(wMin),
	uintptr(lcid),
	uintptr(lpbstrPathName),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function QueryPathOfRegTypeLib(
  guid: PGUID;   // GUID*
  wMaj: Word;   // WORD
  wMin: Word;   // WORD
  lcid: DWORD;   // DWORD
  lpbstrPathName: PPWideChar   // LPWSTR* out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'QueryPathOfRegTypeLib';

result := DllCall("OLEAUT32\QueryPathOfRegTypeLib"
    , "Ptr", guid   ; GUID*
    , "UShort", wMaj   ; WORD
    , "UShort", wMin   ; WORD
    , "UInt", lcid   ; DWORD
    , "Ptr", lpbstrPathName   ; LPWSTR* out
    , "Int")   ; return: HRESULT

●QueryPathOfRegTypeLib(guid, wMaj, wMin, lcid, lpbstrPathName) = DLL("OLEAUT32.dll", "int QueryPathOfRegTypeLib(void*, int, int, dword, void*)")
# 呼び出し: QueryPathOfRegTypeLib(guid, wMaj, wMin, lcid, lpbstrPathName)
# guid : GUID* -> "void*"
# wMaj : WORD -> "int"
# wMin : WORD -> "int"
# lcid : DWORD -> "dword"
# lpbstrPathName : LPWSTR* 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)。