VarFormatFromTokens

// OLEAUT32.dll
#include <windows.h>

HRESULT VarFormatFromTokens(
    VARIANT* pvarIn,
    LPWSTR pstrFormat,   // optional
    BYTE* pbTokCur,
    DWORD dwFlags,
    LPWSTR* pbstrOut,
    DWORD lcid
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function VarFormatFromTokens(
    pvarIn As IntPtr,   ' VARIANT*
    <MarshalAs(UnmanagedType.LPWStr)> pstrFormat As String,   ' LPWSTR optional
    pbTokCur As IntPtr,   ' BYTE*
    dwFlags As UInteger,   ' DWORD
    pbstrOut As IntPtr,   ' LPWSTR* out
    lcid As UInteger   ' DWORD
) As Integer
End Function

' pvarIn : VARIANT*
' pstrFormat : LPWSTR optional
' pbTokCur : BYTE*
' dwFlags : DWORD
' pbstrOut : LPWSTR* out
' lcid : DWORD
Declare PtrSafe Function VarFormatFromTokens Lib "oleaut32" ( _
    ByVal pvarIn As LongPtr, _
    ByVal pstrFormat As LongPtr, _
    ByVal pbTokCur As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal pbstrOut As LongPtr, _
    ByVal lcid 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

VarFormatFromTokens = ctypes.windll.oleaut32.VarFormatFromTokens
VarFormatFromTokens.restype = ctypes.c_int
VarFormatFromTokens.argtypes = [
    ctypes.c_void_p,  # pvarIn : VARIANT*
    wintypes.LPCWSTR,  # pstrFormat : LPWSTR optional
    ctypes.POINTER(ctypes.c_ubyte),  # pbTokCur : BYTE*
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.c_void_p,  # pbstrOut : LPWSTR* out
    wintypes.DWORD,  # lcid : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
VarFormatFromTokens = Fiddle::Function.new(
  lib['VarFormatFromTokens'],
  [
    Fiddle::TYPE_VOIDP,  # pvarIn : VARIANT*
    Fiddle::TYPE_VOIDP,  # pstrFormat : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # pbTokCur : BYTE*
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pbstrOut : LPWSTR* out
    -Fiddle::TYPE_INT,  # lcid : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn VarFormatFromTokens(
        pvarIn: *mut VARIANT,  // VARIANT*
        pstrFormat: *mut u16,  // LPWSTR optional
        pbTokCur: *mut u8,  // BYTE*
        dwFlags: u32,  // DWORD
        pbstrOut: *mut *mut u16,  // LPWSTR* out
        lcid: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int VarFormatFromTokens(IntPtr pvarIn, [MarshalAs(UnmanagedType.LPWStr)] string pstrFormat, IntPtr pbTokCur, uint dwFlags, IntPtr pbstrOut, uint lcid);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_VarFormatFromTokens' -Namespace Win32 -PassThru
# $api::VarFormatFromTokens(pvarIn, pstrFormat, pbTokCur, dwFlags, pbstrOut, lcid)

#uselib "OLEAUT32.dll"
#func global VarFormatFromTokens "VarFormatFromTokens" sptr, sptr, sptr, sptr, sptr, sptr
; VarFormatFromTokens varptr(pvarIn), pstrFormat, varptr(pbTokCur), dwFlags, varptr(pbstrOut), lcid   ; 戻り値は stat
; pvarIn : VARIANT* -> "sptr"
; pstrFormat : LPWSTR optional -> "sptr"
; pbTokCur : BYTE* -> "sptr"
; dwFlags : DWORD -> "sptr"
; pbstrOut : LPWSTR* out -> "sptr"
; lcid : DWORD -> "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 "OLEAUT32.dll"
#cfunc global VarFormatFromTokens "VarFormatFromTokens" var, wstr, var, int, var, int
; res = VarFormatFromTokens(pvarIn, pstrFormat, pbTokCur, dwFlags, pbstrOut, lcid)
; pvarIn : VARIANT* -> "var"
; pstrFormat : LPWSTR optional -> "wstr"
; pbTokCur : BYTE* -> "var"
; dwFlags : DWORD -> "int"
; pbstrOut : LPWSTR* out -> "var"
; lcid : DWORD -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; HRESULT VarFormatFromTokens(VARIANT* pvarIn, LPWSTR pstrFormat, BYTE* pbTokCur, DWORD dwFlags, LPWSTR* pbstrOut, DWORD lcid)
#uselib "OLEAUT32.dll"
#cfunc global VarFormatFromTokens "VarFormatFromTokens" var, wstr, var, int, var, int
; res = VarFormatFromTokens(pvarIn, pstrFormat, pbTokCur, dwFlags, pbstrOut, lcid)
; pvarIn : VARIANT* -> "var"
; pstrFormat : LPWSTR optional -> "wstr"
; pbTokCur : BYTE* -> "var"
; dwFlags : DWORD -> "int"
; pbstrOut : LPWSTR* out -> "var"
; lcid : DWORD -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procVarFormatFromTokens = oleaut32.NewProc("VarFormatFromTokens")
)

// pvarIn (VARIANT*), pstrFormat (LPWSTR optional), pbTokCur (BYTE*), dwFlags (DWORD), pbstrOut (LPWSTR* out), lcid (DWORD)
r1, _, err := procVarFormatFromTokens.Call(
	uintptr(pvarIn),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pstrFormat))),
	uintptr(pbTokCur),
	uintptr(dwFlags),
	uintptr(pbstrOut),
	uintptr(lcid),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function VarFormatFromTokens(
  pvarIn: Pointer;   // VARIANT*
  pstrFormat: PWideChar;   // LPWSTR optional
  pbTokCur: Pointer;   // BYTE*
  dwFlags: DWORD;   // DWORD
  pbstrOut: PPWideChar;   // LPWSTR* out
  lcid: DWORD   // DWORD
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'VarFormatFromTokens';

result := DllCall("OLEAUT32\VarFormatFromTokens"
    , "Ptr", pvarIn   ; VARIANT*
    , "WStr", pstrFormat   ; LPWSTR optional
    , "Ptr", pbTokCur   ; BYTE*
    , "UInt", dwFlags   ; DWORD
    , "Ptr", pbstrOut   ; LPWSTR* out
    , "UInt", lcid   ; DWORD
    , "Int")   ; return: HRESULT

●VarFormatFromTokens(pvarIn, pstrFormat, pbTokCur, dwFlags, pbstrOut, lcid) = DLL("OLEAUT32.dll", "int VarFormatFromTokens(void*, char*, void*, dword, void*, dword)")
# 呼び出し: VarFormatFromTokens(pvarIn, pstrFormat, pbTokCur, dwFlags, pbstrOut, lcid)
# pvarIn : VARIANT* -> "void*"
# pstrFormat : LPWSTR optional -> "char*"
# pbTokCur : BYTE* -> "void*"
# dwFlags : DWORD -> "dword"
# pbstrOut : LPWSTR* out -> "void*"
# lcid : DWORD -> "dword"
# 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)。