ures_getLocaleByType

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

LPSTR ures_getLocaleByType(
    const UResourceBundle* resourceBundle,
    ULocDataLocaleType type,
    UErrorCode* status
);

<DllImport("icuuc.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ures_getLocaleByType(
    ByRef resourceBundle As IntPtr,   ' UResourceBundle*
    type As Integer,   ' ULocDataLocaleType
    ByRef status As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' resourceBundle : UResourceBundle*
' type : ULocDataLocaleType
' status : UErrorCode* in/out
Declare PtrSafe Function ures_getLocaleByType Lib "icuuc" ( _
    ByRef resourceBundle As LongPtr, _
    ByVal type As Long, _
    ByRef status As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ures_getLocaleByType = ctypes.cdll.icuuc.ures_getLocaleByType
ures_getLocaleByType.restype = wintypes.LPSTR
ures_getLocaleByType.argtypes = [
    ctypes.c_void_p,  # resourceBundle : UResourceBundle*
    ctypes.c_int,  # type : ULocDataLocaleType
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuuc.dll')
ures_getLocaleByType = Fiddle::Function.new(
  lib['ures_getLocaleByType'],
  [
    Fiddle::TYPE_VOIDP,  # resourceBundle : UResourceBundle*
    Fiddle::TYPE_INT,  # type : ULocDataLocaleType
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

#[link(name = "icuuc")]
extern "C" {
    fn ures_getLocaleByType(
        resourceBundle: *const isize,  // UResourceBundle*
        type: i32,  // ULocDataLocaleType
        status: *mut i32  // UErrorCode* in/out
    ) -> *mut u8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuuc.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr ures_getLocaleByType(ref IntPtr resourceBundle, int type, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuuc_ures_getLocaleByType' -Namespace Win32 -PassThru
# $api::ures_getLocaleByType(resourceBundle, type, status)

#uselib "icuuc.dll"
#func global ures_getLocaleByType "ures_getLocaleByType" sptr, sptr, sptr
; ures_getLocaleByType resourceBundle, type, status   ; 戻り値は stat
; resourceBundle : UResourceBundle* -> "sptr"
; type : ULocDataLocaleType -> "sptr"
; status : UErrorCode* in/out -> "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 ures_getLocaleByType "ures_getLocaleByType" int, int, int
; res = ures_getLocaleByType(resourceBundle, type, status)
; resourceBundle : UResourceBundle* -> "int"
; type : ULocDataLocaleType -> "int"
; status : UErrorCode* in/out -> "int"

; LPSTR ures_getLocaleByType(UResourceBundle* resourceBundle, ULocDataLocaleType type, UErrorCode* status)
#uselib "icuuc.dll"
#cfunc global ures_getLocaleByType "ures_getLocaleByType" int, int, int
; res = ures_getLocaleByType(resourceBundle, type, status)
; resourceBundle : UResourceBundle* -> "int"
; type : ULocDataLocaleType -> "int"
; status : UErrorCode* in/out -> "int"

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

var (
	icuuc = windows.NewLazySystemDLL("icuuc.dll")
	procures_getLocaleByType = icuuc.NewProc("ures_getLocaleByType")
)

// resourceBundle (UResourceBundle*), type (ULocDataLocaleType), status (UErrorCode* in/out)
r1, _, err := procures_getLocaleByType.Call(
	uintptr(resourceBundle),
	uintptr(type),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // LPSTR

function ures_getLocaleByType(
  resourceBundle: Pointer;   // UResourceBundle*
  type: Integer;   // ULocDataLocaleType
  status: Pointer   // UErrorCode* in/out
): PAnsiChar; cdecl;
  external 'icuuc.dll' name 'ures_getLocaleByType';

result := DllCall("icuuc\ures_getLocaleByType"
    , "Ptr", resourceBundle   ; UResourceBundle*
    , "Int", type   ; ULocDataLocaleType
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: LPSTR

●ures_getLocaleByType(resourceBundle, type, status) = DLL("icuuc.dll", "char* ures_getLocaleByType(void*, int, void*)")
# 呼び出し: ures_getLocaleByType(resourceBundle, type, status)
# resourceBundle : UResourceBundle* -> "void*"
# type : ULocDataLocaleType -> "int"
# status : UErrorCode* in/out -> "void*"
# 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。