uregion_getRegionFromCode

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

URegion* uregion_getRegionFromCode(
    LPCSTR regionCode,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function uregion_getRegionFromCode(
    <MarshalAs(UnmanagedType.LPStr)> regionCode As String,   ' LPCSTR
    ByRef status As Integer   ' UErrorCode* in/out
) As IntPtr
End Function

' regionCode : LPCSTR
' status : UErrorCode* in/out
Declare PtrSafe Function uregion_getRegionFromCode Lib "icuin" ( _
    ByVal regionCode As String, _
    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

uregion_getRegionFromCode = ctypes.cdll.icuin.uregion_getRegionFromCode
uregion_getRegionFromCode.restype = ctypes.c_void_p
uregion_getRegionFromCode.argtypes = [
    wintypes.LPCSTR,  # regionCode : LPCSTR
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
uregion_getRegionFromCode = Fiddle::Function.new(
  lib['uregion_getRegionFromCode'],
  [
    Fiddle::TYPE_VOIDP,  # regionCode : LPCSTR
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOIDP, Fiddle::Function::CDECL)

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

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr uregion_getRegionFromCode([MarshalAs(UnmanagedType.LPStr)] string regionCode, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_uregion_getRegionFromCode' -Namespace Win32 -PassThru
# $api::uregion_getRegionFromCode(regionCode, status)

#uselib "icuin.dll"
#func global uregion_getRegionFromCode "uregion_getRegionFromCode" sptr, sptr
; uregion_getRegionFromCode regionCode, status   ; 戻り値は stat
; regionCode : LPCSTR -> "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 "icuin.dll"
#cfunc global uregion_getRegionFromCode "uregion_getRegionFromCode" str, int
; res = uregion_getRegionFromCode(regionCode, status)
; regionCode : LPCSTR -> "str"
; status : UErrorCode* in/out -> "int"

; URegion* uregion_getRegionFromCode(LPCSTR regionCode, UErrorCode* status)
#uselib "icuin.dll"
#cfunc global uregion_getRegionFromCode "uregion_getRegionFromCode" str, int
; res = uregion_getRegionFromCode(regionCode, status)
; regionCode : LPCSTR -> "str"
; status : UErrorCode* in/out -> "int"

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procuregion_getRegionFromCode = icuin.NewProc("uregion_getRegionFromCode")
)

// regionCode (LPCSTR), status (UErrorCode* in/out)
r1, _, err := procuregion_getRegionFromCode.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(regionCode))),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // URegion*

function uregion_getRegionFromCode(
  regionCode: PAnsiChar;   // LPCSTR
  status: Pointer   // UErrorCode* in/out
): Pointer; cdecl;
  external 'icuin.dll' name 'uregion_getRegionFromCode';

result := DllCall("icuin\uregion_getRegionFromCode"
    , "AStr", regionCode   ; LPCSTR
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Ptr")   ; return: URegion*

●uregion_getRegionFromCode(regionCode, status) = DLL("icuin.dll", "void* uregion_getRegionFromCode(char*, void*)")
# 呼び出し: uregion_getRegionFromCode(regionCode, status)
# regionCode : LPCSTR -> "char*"
# 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。