LocaleNameToLCID

// KERNEL32.dll
#include <windows.h>

DWORD LocaleNameToLCID(
    LPCWSTR lpName,
    DWORD dwFlags
);

<DllImport("KERNEL32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function LocaleNameToLCID(
    <MarshalAs(UnmanagedType.LPWStr)> lpName As String,   ' LPCWSTR
    dwFlags As UInteger   ' DWORD
) As UInteger
End Function

' lpName : LPCWSTR
' dwFlags : DWORD
Declare PtrSafe Function LocaleNameToLCID Lib "kernel32" ( _
    ByVal lpName As LongPtr, _
    ByVal dwFlags 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

LocaleNameToLCID = ctypes.windll.kernel32.LocaleNameToLCID
LocaleNameToLCID.restype = wintypes.DWORD
LocaleNameToLCID.argtypes = [
    wintypes.LPCWSTR,  # lpName : LPCWSTR
    wintypes.DWORD,  # dwFlags : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
LocaleNameToLCID = Fiddle::Function.new(
  lib['LocaleNameToLCID'],
  [
    Fiddle::TYPE_VOIDP,  # lpName : LPCWSTR
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn LocaleNameToLCID(
        lpName: *const u16,  // LPCWSTR
        dwFlags: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll", SetLastError = true)]
public static extern uint LocaleNameToLCID([MarshalAs(UnmanagedType.LPWStr)] string lpName, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_LocaleNameToLCID' -Namespace Win32 -PassThru
# $api::LocaleNameToLCID(lpName, dwFlags)

#uselib "KERNEL32.dll"
#func global LocaleNameToLCID "LocaleNameToLCID" sptr, sptr
; LocaleNameToLCID lpName, dwFlags   ; 戻り値は stat
; lpName : LPCWSTR -> "sptr"
; dwFlags : 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 "KERNEL32.dll"
#cfunc global LocaleNameToLCID "LocaleNameToLCID" wstr, int
; res = LocaleNameToLCID(lpName, dwFlags)
; lpName : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"

; DWORD LocaleNameToLCID(LPCWSTR lpName, DWORD dwFlags)
#uselib "KERNEL32.dll"
#cfunc global LocaleNameToLCID "LocaleNameToLCID" wstr, int
; res = LocaleNameToLCID(lpName, dwFlags)
; lpName : LPCWSTR -> "wstr"
; dwFlags : DWORD -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procLocaleNameToLCID = kernel32.NewProc("LocaleNameToLCID")
)

// lpName (LPCWSTR), dwFlags (DWORD)
r1, _, err := procLocaleNameToLCID.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpName))),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function LocaleNameToLCID(
  lpName: PWideChar;   // LPCWSTR
  dwFlags: DWORD   // DWORD
): DWORD; stdcall;
  external 'KERNEL32.dll' name 'LocaleNameToLCID';

result := DllCall("KERNEL32\LocaleNameToLCID"
    , "WStr", lpName   ; LPCWSTR
    , "UInt", dwFlags   ; DWORD
    , "UInt")   ; return: DWORD

●LocaleNameToLCID(lpName, dwFlags) = DLL("KERNEL32.dll", "dword LocaleNameToLCID(char*, dword)")
# 呼び出し: LocaleNameToLCID(lpName, dwFlags)
# lpName : LPCWSTR -> "char*"
# dwFlags : 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)。