MonikerRelativePathTo

// ole32.dll
#include <windows.h>

HRESULT MonikerRelativePathTo(
    IMoniker* pmkSrc,
    IMoniker* pmkDest,
    IMoniker** ppmkRelPath,
    BOOL dwReserved
);

<DllImport("ole32.dll", ExactSpelling:=True)>
Public Shared Function MonikerRelativePathTo(
    pmkSrc As IntPtr,   ' IMoniker*
    pmkDest As IntPtr,   ' IMoniker*
    ppmkRelPath As IntPtr,   ' IMoniker** out
    dwReserved As Boolean   ' BOOL
) As Integer
End Function

' pmkSrc : IMoniker*
' pmkDest : IMoniker*
' ppmkRelPath : IMoniker** out
' dwReserved : BOOL
Declare PtrSafe Function MonikerRelativePathTo Lib "ole32" ( _
    ByVal pmkSrc As LongPtr, _
    ByVal pmkDest As LongPtr, _
    ByVal ppmkRelPath As LongPtr, _
    ByVal dwReserved 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

MonikerRelativePathTo = ctypes.windll.ole32.MonikerRelativePathTo
MonikerRelativePathTo.restype = ctypes.c_int
MonikerRelativePathTo.argtypes = [
    ctypes.c_void_p,  # pmkSrc : IMoniker*
    ctypes.c_void_p,  # pmkDest : IMoniker*
    ctypes.c_void_p,  # ppmkRelPath : IMoniker** out
    wintypes.BOOL,  # dwReserved : BOOL
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ole32.dll')
MonikerRelativePathTo = Fiddle::Function.new(
  lib['MonikerRelativePathTo'],
  [
    Fiddle::TYPE_VOIDP,  # pmkSrc : IMoniker*
    Fiddle::TYPE_VOIDP,  # pmkDest : IMoniker*
    Fiddle::TYPE_VOIDP,  # ppmkRelPath : IMoniker** out
    Fiddle::TYPE_INT,  # dwReserved : BOOL
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn MonikerRelativePathTo(
        pmkSrc: *mut core::ffi::c_void,  // IMoniker*
        pmkDest: *mut core::ffi::c_void,  // IMoniker*
        ppmkRelPath: *mut *mut core::ffi::c_void,  // IMoniker** out
        dwReserved: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ole32.dll")]
public static extern int MonikerRelativePathTo(IntPtr pmkSrc, IntPtr pmkDest, IntPtr ppmkRelPath, bool dwReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ole32_MonikerRelativePathTo' -Namespace Win32 -PassThru
# $api::MonikerRelativePathTo(pmkSrc, pmkDest, ppmkRelPath, dwReserved)

#uselib "ole32.dll"
#func global MonikerRelativePathTo "MonikerRelativePathTo" sptr, sptr, sptr, sptr
; MonikerRelativePathTo pmkSrc, pmkDest, ppmkRelPath, dwReserved   ; 戻り値は stat
; pmkSrc : IMoniker* -> "sptr"
; pmkDest : IMoniker* -> "sptr"
; ppmkRelPath : IMoniker** out -> "sptr"
; dwReserved : BOOL -> "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 "ole32.dll"
#cfunc global MonikerRelativePathTo "MonikerRelativePathTo" sptr, sptr, sptr, int
; res = MonikerRelativePathTo(pmkSrc, pmkDest, ppmkRelPath, dwReserved)
; pmkSrc : IMoniker* -> "sptr"
; pmkDest : IMoniker* -> "sptr"
; ppmkRelPath : IMoniker** out -> "sptr"
; dwReserved : BOOL -> "int"

; HRESULT MonikerRelativePathTo(IMoniker* pmkSrc, IMoniker* pmkDest, IMoniker** ppmkRelPath, BOOL dwReserved)
#uselib "ole32.dll"
#cfunc global MonikerRelativePathTo "MonikerRelativePathTo" intptr, intptr, intptr, int
; res = MonikerRelativePathTo(pmkSrc, pmkDest, ppmkRelPath, dwReserved)
; pmkSrc : IMoniker* -> "intptr"
; pmkDest : IMoniker* -> "intptr"
; ppmkRelPath : IMoniker** out -> "intptr"
; dwReserved : BOOL -> "int"

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

var (
	ole32 = windows.NewLazySystemDLL("ole32.dll")
	procMonikerRelativePathTo = ole32.NewProc("MonikerRelativePathTo")
)

// pmkSrc (IMoniker*), pmkDest (IMoniker*), ppmkRelPath (IMoniker** out), dwReserved (BOOL)
r1, _, err := procMonikerRelativePathTo.Call(
	uintptr(pmkSrc),
	uintptr(pmkDest),
	uintptr(ppmkRelPath),
	uintptr(dwReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MonikerRelativePathTo(
  pmkSrc: Pointer;   // IMoniker*
  pmkDest: Pointer;   // IMoniker*
  ppmkRelPath: Pointer;   // IMoniker** out
  dwReserved: BOOL   // BOOL
): Integer; stdcall;
  external 'ole32.dll' name 'MonikerRelativePathTo';

result := DllCall("ole32\MonikerRelativePathTo"
    , "Ptr", pmkSrc   ; IMoniker*
    , "Ptr", pmkDest   ; IMoniker*
    , "Ptr", ppmkRelPath   ; IMoniker** out
    , "Int", dwReserved   ; BOOL
    , "Int")   ; return: HRESULT

●MonikerRelativePathTo(pmkSrc, pmkDest, ppmkRelPath, dwReserved) = DLL("ole32.dll", "int MonikerRelativePathTo(void*, void*, void*, bool)")
# 呼び出し: MonikerRelativePathTo(pmkSrc, pmkDest, ppmkRelPath, dwReserved)
# pmkSrc : IMoniker* -> "void*"
# pmkDest : IMoniker* -> "void*"
# ppmkRelPath : IMoniker** out -> "void*"
# dwReserved : BOOL -> "bool"
# 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)。