CfOpenFileWithOplock

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

HRESULT CfOpenFileWithOplock(
    LPCWSTR FilePath,
    CF_OPEN_FILE_FLAGS Flags,
    HANDLE* ProtectedHandle
);

<DllImport("cldapi.dll", ExactSpelling:=True)>
Public Shared Function CfOpenFileWithOplock(
    <MarshalAs(UnmanagedType.LPWStr)> FilePath As String,   ' LPCWSTR
    Flags As Integer,   ' CF_OPEN_FILE_FLAGS
    ProtectedHandle As IntPtr   ' HANDLE* out
) As Integer
End Function

' FilePath : LPCWSTR
' Flags : CF_OPEN_FILE_FLAGS
' ProtectedHandle : HANDLE* out
Declare PtrSafe Function CfOpenFileWithOplock Lib "cldapi" ( _
    ByVal FilePath As LongPtr, _
    ByVal Flags As Long, _
    ByVal ProtectedHandle 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

CfOpenFileWithOplock = ctypes.windll.cldapi.CfOpenFileWithOplock
CfOpenFileWithOplock.restype = ctypes.c_int
CfOpenFileWithOplock.argtypes = [
    wintypes.LPCWSTR,  # FilePath : LPCWSTR
    ctypes.c_int,  # Flags : CF_OPEN_FILE_FLAGS
    ctypes.c_void_p,  # ProtectedHandle : HANDLE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('cldapi.dll')
CfOpenFileWithOplock = Fiddle::Function.new(
  lib['CfOpenFileWithOplock'],
  [
    Fiddle::TYPE_VOIDP,  # FilePath : LPCWSTR
    Fiddle::TYPE_INT,  # Flags : CF_OPEN_FILE_FLAGS
    Fiddle::TYPE_VOIDP,  # ProtectedHandle : HANDLE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "cldapi")]
extern "system" {
    fn CfOpenFileWithOplock(
        FilePath: *const u16,  // LPCWSTR
        Flags: i32,  // CF_OPEN_FILE_FLAGS
        ProtectedHandle: *mut *mut core::ffi::c_void  // HANDLE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("cldapi.dll")]
public static extern int CfOpenFileWithOplock([MarshalAs(UnmanagedType.LPWStr)] string FilePath, int Flags, IntPtr ProtectedHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'cldapi_CfOpenFileWithOplock' -Namespace Win32 -PassThru
# $api::CfOpenFileWithOplock(FilePath, Flags, ProtectedHandle)

#uselib "cldapi.dll"
#func global CfOpenFileWithOplock "CfOpenFileWithOplock" sptr, sptr, sptr
; CfOpenFileWithOplock FilePath, Flags, ProtectedHandle   ; 戻り値は stat
; FilePath : LPCWSTR -> "sptr"
; Flags : CF_OPEN_FILE_FLAGS -> "sptr"
; ProtectedHandle : HANDLE* 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 "cldapi.dll"
#cfunc global CfOpenFileWithOplock "CfOpenFileWithOplock" wstr, int, sptr
; res = CfOpenFileWithOplock(FilePath, Flags, ProtectedHandle)
; FilePath : LPCWSTR -> "wstr"
; Flags : CF_OPEN_FILE_FLAGS -> "int"
; ProtectedHandle : HANDLE* out -> "sptr"

; HRESULT CfOpenFileWithOplock(LPCWSTR FilePath, CF_OPEN_FILE_FLAGS Flags, HANDLE* ProtectedHandle)
#uselib "cldapi.dll"
#cfunc global CfOpenFileWithOplock "CfOpenFileWithOplock" wstr, int, intptr
; res = CfOpenFileWithOplock(FilePath, Flags, ProtectedHandle)
; FilePath : LPCWSTR -> "wstr"
; Flags : CF_OPEN_FILE_FLAGS -> "int"
; ProtectedHandle : HANDLE* out -> "intptr"

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

var (
	cldapi = windows.NewLazySystemDLL("cldapi.dll")
	procCfOpenFileWithOplock = cldapi.NewProc("CfOpenFileWithOplock")
)

// FilePath (LPCWSTR), Flags (CF_OPEN_FILE_FLAGS), ProtectedHandle (HANDLE* out)
r1, _, err := procCfOpenFileWithOplock.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(FilePath))),
	uintptr(Flags),
	uintptr(ProtectedHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CfOpenFileWithOplock(
  FilePath: PWideChar;   // LPCWSTR
  Flags: Integer;   // CF_OPEN_FILE_FLAGS
  ProtectedHandle: Pointer   // HANDLE* out
): Integer; stdcall;
  external 'cldapi.dll' name 'CfOpenFileWithOplock';

result := DllCall("cldapi\CfOpenFileWithOplock"
    , "WStr", FilePath   ; LPCWSTR
    , "Int", Flags   ; CF_OPEN_FILE_FLAGS
    , "Ptr", ProtectedHandle   ; HANDLE* out
    , "Int")   ; return: HRESULT

●CfOpenFileWithOplock(FilePath, Flags, ProtectedHandle) = DLL("cldapi.dll", "int CfOpenFileWithOplock(char*, int, void*)")
# 呼び出し: CfOpenFileWithOplock(FilePath, Flags, ProtectedHandle)
# FilePath : LPCWSTR -> "char*"
# Flags : CF_OPEN_FILE_FLAGS -> "int"
# ProtectedHandle : HANDLE* 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)。