ubidi_getBaseDirection

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

UBiDiDirection ubidi_getBaseDirection(
    const WORD* text,
    INT length
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ubidi_getBaseDirection(
    ByRef text As UShort,   ' WORD*
    length As Integer   ' INT
) As Integer
End Function

' text : WORD*
' length : INT
Declare PtrSafe Function ubidi_getBaseDirection Lib "icuuc" ( _
    ByRef text As Integer, _
    ByVal length 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

ubidi_getBaseDirection = ctypes.cdll.icuuc.ubidi_getBaseDirection
ubidi_getBaseDirection.restype = ctypes.c_int
ubidi_getBaseDirection.argtypes = [
    ctypes.POINTER(ctypes.c_ushort),  # text : WORD*
    ctypes.c_int,  # length : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
ubidi_getBaseDirection = Fiddle::Function.new(
  lib['ubidi_getBaseDirection'],
  [
    Fiddle::TYPE_VOIDP,  # text : WORD*
    Fiddle::TYPE_INT,  # length : INT
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn ubidi_getBaseDirection(
        text: *const u16,  // WORD*
        length: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int ubidi_getBaseDirection(ref ushort text, int length);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_ubidi_getBaseDirection' -Namespace Win32 -PassThru
# $api::ubidi_getBaseDirection(text, length)

#uselib "icuuc.dll"
#func global ubidi_getBaseDirection "ubidi_getBaseDirection" sptr, sptr
; ubidi_getBaseDirection varptr(text), length   ; 戻り値は stat
; text : WORD* -> "sptr"
; length : INT -> "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 ubidi_getBaseDirection "ubidi_getBaseDirection" var, int
; res = ubidi_getBaseDirection(text, length)
; text : WORD* -> "var"
; length : INT -> "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。

; UBiDiDirection ubidi_getBaseDirection(WORD* text, INT length)
#uselib "icuuc.dll"
#cfunc global ubidi_getBaseDirection "ubidi_getBaseDirection" var, int
; res = ubidi_getBaseDirection(text, length)
; text : WORD* -> "var"
; length : INT -> "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 (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procubidi_getBaseDirection = icuuc.NewProc("ubidi_getBaseDirection")
)

// text (WORD*), length (INT)
r1, _, err := procubidi_getBaseDirection.Call(
	uintptr(text),
	uintptr(length),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // UBiDiDirection

function ubidi_getBaseDirection(
  text: Pointer;   // WORD*
  length: Integer   // INT
): Integer; cdecl;
  external 'icuuc.dll' name 'ubidi_getBaseDirection';

result := DllCall("icuuc\ubidi_getBaseDirection"
    , "Ptr", text   ; WORD*
    , "Int", length   ; INT
    , "Cdecl Int")   ; return: UBiDiDirection

●ubidi_getBaseDirection(text, length) = DLL("icuuc.dll", "int ubidi_getBaseDirection(void*, int)")
# 呼び出し: ubidi_getBaseDirection(text, length)
# text : WORD* -> "void*"
# length : INT -> "int"
# 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。