CoLockObjectExternal

// OLE32.dll
#include <windows.h>

HRESULT CoLockObjectExternal(
    IUnknown* pUnk,
    BOOL fLock,
    BOOL fLastUnlockReleases
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function CoLockObjectExternal(
    pUnk As IntPtr,   ' IUnknown*
    fLock As Boolean,   ' BOOL
    fLastUnlockReleases As Boolean   ' BOOL
) As Integer
End Function

' pUnk : IUnknown*
' fLock : BOOL
' fLastUnlockReleases : BOOL
Declare PtrSafe Function CoLockObjectExternal Lib "ole32" ( _
    ByVal pUnk As LongPtr, _
    ByVal fLock As Long, _
    ByVal fLastUnlockReleases 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

CoLockObjectExternal = ctypes.windll.ole32.CoLockObjectExternal
CoLockObjectExternal.restype = ctypes.c_int
CoLockObjectExternal.argtypes = [
    ctypes.c_void_p,  # pUnk : IUnknown*
    wintypes.BOOL,  # fLock : BOOL
    wintypes.BOOL,  # fLastUnlockReleases : BOOL
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
CoLockObjectExternal = Fiddle::Function.new(
  lib['CoLockObjectExternal'],
  [
    Fiddle::TYPE_VOIDP,  # pUnk : IUnknown*
    Fiddle::TYPE_INT,  # fLock : BOOL
    Fiddle::TYPE_INT,  # fLastUnlockReleases : BOOL
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn CoLockObjectExternal(
        pUnk: *mut core::ffi::c_void,  // IUnknown*
        fLock: i32,  // BOOL
        fLastUnlockReleases: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int CoLockObjectExternal(IntPtr pUnk, bool fLock, bool fLastUnlockReleases);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_CoLockObjectExternal' -Namespace Win32 -PassThru
# $api::CoLockObjectExternal(pUnk, fLock, fLastUnlockReleases)

#uselib "OLE32.dll"
#func global CoLockObjectExternal "CoLockObjectExternal" sptr, sptr, sptr
; CoLockObjectExternal pUnk, fLock, fLastUnlockReleases   ; 戻り値は stat
; pUnk : IUnknown* -> "sptr"
; fLock : BOOL -> "sptr"
; fLastUnlockReleases : 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 CoLockObjectExternal "CoLockObjectExternal" sptr, int, int
; res = CoLockObjectExternal(pUnk, fLock, fLastUnlockReleases)
; pUnk : IUnknown* -> "sptr"
; fLock : BOOL -> "int"
; fLastUnlockReleases : BOOL -> "int"

; HRESULT CoLockObjectExternal(IUnknown* pUnk, BOOL fLock, BOOL fLastUnlockReleases)
#uselib "OLE32.dll"
#cfunc global CoLockObjectExternal "CoLockObjectExternal" intptr, int, int
; res = CoLockObjectExternal(pUnk, fLock, fLastUnlockReleases)
; pUnk : IUnknown* -> "intptr"
; fLock : BOOL -> "int"
; fLastUnlockReleases : BOOL -> "int"

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

var (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procCoLockObjectExternal = ole32.NewProc("CoLockObjectExternal")
)

// pUnk (IUnknown*), fLock (BOOL), fLastUnlockReleases (BOOL)
r1, _, err := procCoLockObjectExternal.Call(
	uintptr(pUnk),
	uintptr(fLock),
	uintptr(fLastUnlockReleases),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CoLockObjectExternal(
  pUnk: Pointer;   // IUnknown*
  fLock: BOOL;   // BOOL
  fLastUnlockReleases: BOOL   // BOOL
): Integer; stdcall;
  external 'OLE32.dll' name 'CoLockObjectExternal';

result := DllCall("OLE32\CoLockObjectExternal"
    , "Ptr", pUnk   ; IUnknown*
    , "Int", fLock   ; BOOL
    , "Int", fLastUnlockReleases   ; BOOL
    , "Int")   ; return: HRESULT

●CoLockObjectExternal(pUnk, fLock, fLastUnlockReleases) = DLL("OLE32.dll", "int CoLockObjectExternal(void*, bool, bool)")
# 呼び出し: CoLockObjectExternal(pUnk, fLock, fLastUnlockReleases)
# pUnk : IUnknown* -> "void*"
# fLock : BOOL -> "bool"
# fLastUnlockReleases : 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)。