StgGetIFillLockBytesOnFile

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

HRESULT StgGetIFillLockBytesOnFile(
    LPCWSTR pwcsName,
    IFillLockBytes** ppflb
);

<DllImport("ole32.dll", ExactSpelling:=True)>
Public Shared Function StgGetIFillLockBytesOnFile(
    <MarshalAs(UnmanagedType.LPWStr)> pwcsName As String,   ' LPCWSTR
    ppflb As IntPtr   ' IFillLockBytes** out
) As Integer
End Function

' pwcsName : LPCWSTR
' ppflb : IFillLockBytes** out
Declare PtrSafe Function StgGetIFillLockBytesOnFile Lib "ole32" ( _
    ByVal pwcsName As LongPtr, _
    ByVal ppflb 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

StgGetIFillLockBytesOnFile = ctypes.windll.ole32.StgGetIFillLockBytesOnFile
StgGetIFillLockBytesOnFile.restype = ctypes.c_int
StgGetIFillLockBytesOnFile.argtypes = [
    wintypes.LPCWSTR,  # pwcsName : LPCWSTR
    ctypes.c_void_p,  # ppflb : IFillLockBytes** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ole32.dll')
StgGetIFillLockBytesOnFile = Fiddle::Function.new(
  lib['StgGetIFillLockBytesOnFile'],
  [
    Fiddle::TYPE_VOIDP,  # pwcsName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # ppflb : IFillLockBytes** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn StgGetIFillLockBytesOnFile(
        pwcsName: *const u16,  // LPCWSTR
        ppflb: *mut *mut core::ffi::c_void  // IFillLockBytes** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ole32.dll")]
public static extern int StgGetIFillLockBytesOnFile([MarshalAs(UnmanagedType.LPWStr)] string pwcsName, IntPtr ppflb);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ole32_StgGetIFillLockBytesOnFile' -Namespace Win32 -PassThru
# $api::StgGetIFillLockBytesOnFile(pwcsName, ppflb)

#uselib "ole32.dll"
#func global StgGetIFillLockBytesOnFile "StgGetIFillLockBytesOnFile" sptr, sptr
; StgGetIFillLockBytesOnFile pwcsName, ppflb   ; 戻り値は stat
; pwcsName : LPCWSTR -> "sptr"
; ppflb : IFillLockBytes** 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 "ole32.dll"
#cfunc global StgGetIFillLockBytesOnFile "StgGetIFillLockBytesOnFile" wstr, sptr
; res = StgGetIFillLockBytesOnFile(pwcsName, ppflb)
; pwcsName : LPCWSTR -> "wstr"
; ppflb : IFillLockBytes** out -> "sptr"

; HRESULT StgGetIFillLockBytesOnFile(LPCWSTR pwcsName, IFillLockBytes** ppflb)
#uselib "ole32.dll"
#cfunc global StgGetIFillLockBytesOnFile "StgGetIFillLockBytesOnFile" wstr, intptr
; res = StgGetIFillLockBytesOnFile(pwcsName, ppflb)
; pwcsName : LPCWSTR -> "wstr"
; ppflb : IFillLockBytes** out -> "intptr"

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

var (
	ole32 = windows.NewLazySystemDLL("ole32.dll")
	procStgGetIFillLockBytesOnFile = ole32.NewProc("StgGetIFillLockBytesOnFile")
)

// pwcsName (LPCWSTR), ppflb (IFillLockBytes** out)
r1, _, err := procStgGetIFillLockBytesOnFile.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pwcsName))),
	uintptr(ppflb),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function StgGetIFillLockBytesOnFile(
  pwcsName: PWideChar;   // LPCWSTR
  ppflb: Pointer   // IFillLockBytes** out
): Integer; stdcall;
  external 'ole32.dll' name 'StgGetIFillLockBytesOnFile';

result := DllCall("ole32\StgGetIFillLockBytesOnFile"
    , "WStr", pwcsName   ; LPCWSTR
    , "Ptr", ppflb   ; IFillLockBytes** out
    , "Int")   ; return: HRESULT

●StgGetIFillLockBytesOnFile(pwcsName, ppflb) = DLL("ole32.dll", "int StgGetIFillLockBytesOnFile(char*, void*)")
# 呼び出し: StgGetIFillLockBytesOnFile(pwcsName, ppflb)
# pwcsName : LPCWSTR -> "char*"
# ppflb : IFillLockBytes** 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)。