uloc_isRightToLeft

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

CHAR uloc_isRightToLeft(
    LPCSTR locale
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function uloc_isRightToLeft(
    <MarshalAs(UnmanagedType.LPStr)> locale As String   ' LPCSTR
) As SByte
End Function

' locale : LPCSTR
Declare PtrSafe Function uloc_isRightToLeft Lib "icuuc" ( _
    ByVal locale As String) As Byte
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

uloc_isRightToLeft = ctypes.cdll.icuuc.uloc_isRightToLeft
uloc_isRightToLeft.restype = ctypes.c_byte
uloc_isRightToLeft.argtypes = [
    wintypes.LPCSTR,  # locale : LPCSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
uloc_isRightToLeft = Fiddle::Function.new(
  lib['uloc_isRightToLeft'],
  [
    Fiddle::TYPE_VOIDP,  # locale : LPCSTR
  ],
  Fiddle::TYPE_CHAR, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn uloc_isRightToLeft(
        locale: *const u8  // LPCSTR
    ) -> i8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern sbyte uloc_isRightToLeft([MarshalAs(UnmanagedType.LPStr)] string locale);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_uloc_isRightToLeft' -Namespace Win32 -PassThru
# $api::uloc_isRightToLeft(locale)

#uselib "icuuc.dll"
#func global uloc_isRightToLeft "uloc_isRightToLeft" sptr
; uloc_isRightToLeft locale   ; 戻り値は stat
; locale : LPCSTR -> "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 "icuuc.dll"
#cfunc global uloc_isRightToLeft "uloc_isRightToLeft" str
; res = uloc_isRightToLeft(locale)
; locale : LPCSTR -> "str"

; CHAR uloc_isRightToLeft(LPCSTR locale)
#uselib "icuuc.dll"
#cfunc global uloc_isRightToLeft "uloc_isRightToLeft" str
; res = uloc_isRightToLeft(locale)
; locale : LPCSTR -> "str"

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

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	proculoc_isRightToLeft = icuuc.NewProc("uloc_isRightToLeft")
)

// locale (LPCSTR)
r1, _, err := proculoc_isRightToLeft.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(locale))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CHAR

function uloc_isRightToLeft(
  locale: PAnsiChar   // LPCSTR
): Shortint; cdecl;
  external 'icuuc.dll' name 'uloc_isRightToLeft';

result := DllCall("icuuc\uloc_isRightToLeft"
    , "AStr", locale   ; LPCSTR
    , "Cdecl Char")   ; return: CHAR

●uloc_isRightToLeft(locale) = DLL("icuuc.dll", "char uloc_isRightToLeft(char*)")
# 呼び出し: uloc_isRightToLeft(locale)
# locale : LPCSTR -> "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)。
# ※cdecl関数。DLL()宣言はstdcall前提。cdeclは EXEC_PTR(`cdecl`,…) を使用。