ResUtilExpandEnvironmentStrings

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

LPWSTR ResUtilExpandEnvironmentStrings(
    LPCWSTR pszSrc
);

<DllImport("RESUTILS.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function ResUtilExpandEnvironmentStrings(
    <MarshalAs(UnmanagedType.LPWStr)> pszSrc As String   ' LPCWSTR
) As IntPtr
End Function

' pszSrc : LPCWSTR
Declare PtrSafe Function ResUtilExpandEnvironmentStrings Lib "resutils" ( _
    ByVal pszSrc As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ResUtilExpandEnvironmentStrings = ctypes.windll.resutils.ResUtilExpandEnvironmentStrings
ResUtilExpandEnvironmentStrings.restype = wintypes.LPWSTR
ResUtilExpandEnvironmentStrings.argtypes = [
    wintypes.LPCWSTR,  # pszSrc : LPCWSTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RESUTILS.dll')
ResUtilExpandEnvironmentStrings = Fiddle::Function.new(
  lib['ResUtilExpandEnvironmentStrings'],
  [
    Fiddle::TYPE_VOIDP,  # pszSrc : LPCWSTR
  ],
  Fiddle::TYPE_VOIDP)

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

$sig = @"
[DllImport("RESUTILS.dll", SetLastError = true)]
public static extern IntPtr ResUtilExpandEnvironmentStrings([MarshalAs(UnmanagedType.LPWStr)] string pszSrc);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RESUTILS_ResUtilExpandEnvironmentStrings' -Namespace Win32 -PassThru
# $api::ResUtilExpandEnvironmentStrings(pszSrc)

#uselib "RESUTILS.dll"
#func global ResUtilExpandEnvironmentStrings "ResUtilExpandEnvironmentStrings" sptr
; ResUtilExpandEnvironmentStrings pszSrc   ; 戻り値は stat
; pszSrc : 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 "RESUTILS.dll"
#cfunc global ResUtilExpandEnvironmentStrings "ResUtilExpandEnvironmentStrings" wstr
; res = ResUtilExpandEnvironmentStrings(pszSrc)
; pszSrc : LPCWSTR -> "wstr"

; LPWSTR ResUtilExpandEnvironmentStrings(LPCWSTR pszSrc)
#uselib "RESUTILS.dll"
#cfunc global ResUtilExpandEnvironmentStrings "ResUtilExpandEnvironmentStrings" wstr
; res = ResUtilExpandEnvironmentStrings(pszSrc)
; pszSrc : LPCWSTR -> "wstr"

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

var (
	resutils = windows.NewLazySystemDLL("RESUTILS.dll")
	procResUtilExpandEnvironmentStrings = resutils.NewProc("ResUtilExpandEnvironmentStrings")
)

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

function ResUtilExpandEnvironmentStrings(
  pszSrc: PWideChar   // LPCWSTR
): PWideChar; stdcall;
  external 'RESUTILS.dll' name 'ResUtilExpandEnvironmentStrings';

result := DllCall("RESUTILS\ResUtilExpandEnvironmentStrings"
    , "WStr", pszSrc   ; LPCWSTR
    , "Ptr")   ; return: LPWSTR

●ResUtilExpandEnvironmentStrings(pszSrc) = DLL("RESUTILS.dll", "char* ResUtilExpandEnvironmentStrings(char*)")
# 呼び出し: ResUtilExpandEnvironmentStrings(pszSrc)
# pszSrc : 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)。