StgIsStorageFile

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

HRESULT StgIsStorageFile(
    LPCWSTR pwcsName
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function StgIsStorageFile(
    <MarshalAs(UnmanagedType.LPWStr)> pwcsName As String   ' LPCWSTR
) As Integer
End Function

' pwcsName : LPCWSTR
Declare PtrSafe Function StgIsStorageFile Lib "ole32" ( _
    ByVal pwcsName 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

StgIsStorageFile = ctypes.windll.ole32.StgIsStorageFile
StgIsStorageFile.restype = ctypes.c_int
StgIsStorageFile.argtypes = [
    wintypes.LPCWSTR,  # pwcsName : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
StgIsStorageFile = Fiddle::Function.new(
  lib['StgIsStorageFile'],
  [
    Fiddle::TYPE_VOIDP,  # pwcsName : LPCWSTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn StgIsStorageFile(
        pwcsName: *const u16  // LPCWSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int StgIsStorageFile([MarshalAs(UnmanagedType.LPWStr)] string pwcsName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_StgIsStorageFile' -Namespace Win32 -PassThru
# $api::StgIsStorageFile(pwcsName)

#uselib "OLE32.dll"
#func global StgIsStorageFile "StgIsStorageFile" sptr
; StgIsStorageFile pwcsName   ; 戻り値は stat
; pwcsName : LPCWSTR -> "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 StgIsStorageFile "StgIsStorageFile" wstr
; res = StgIsStorageFile(pwcsName)
; pwcsName : LPCWSTR -> "wstr"

; HRESULT StgIsStorageFile(LPCWSTR pwcsName)
#uselib "OLE32.dll"
#cfunc global StgIsStorageFile "StgIsStorageFile" wstr
; res = StgIsStorageFile(pwcsName)
; pwcsName : LPCWSTR -> "wstr"

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

var (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procStgIsStorageFile = ole32.NewProc("StgIsStorageFile")
)

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

function StgIsStorageFile(
  pwcsName: PWideChar   // LPCWSTR
): Integer; stdcall;
  external 'OLE32.dll' name 'StgIsStorageFile';

result := DllCall("OLE32\StgIsStorageFile"
    , "WStr", pwcsName   ; LPCWSTR
    , "Int")   ; return: HRESULT

●StgIsStorageFile(pwcsName) = DLL("OLE32.dll", "int StgIsStorageFile(char*)")
# 呼び出し: StgIsStorageFile(pwcsName)
# pwcsName : LPCWSTR -> "char*"
# 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)。