unumf_resultNextFieldPosition

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

CHAR unumf_resultNextFieldPosition(
    const UFormattedNumber* uresult,
    UFieldPosition* ufpos,
    UErrorCode* ec
);

<DllImport("icu.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function unumf_resultNextFieldPosition(
    ByRef uresult As IntPtr,   ' UFormattedNumber*
    ufpos As IntPtr,   ' UFieldPosition* in/out
    ByRef ec As Integer   ' UErrorCode* in/out
) As SByte
End Function

' uresult : UFormattedNumber*
' ufpos : UFieldPosition* in/out
' ec : UErrorCode* in/out
Declare PtrSafe Function unumf_resultNextFieldPosition Lib "icu" ( _
    ByRef uresult As LongPtr, _
    ByVal ufpos As LongPtr, _
    ByRef ec As Long) As Byte
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

unumf_resultNextFieldPosition = ctypes.cdll.icu.unumf_resultNextFieldPosition
unumf_resultNextFieldPosition.restype = ctypes.c_byte
unumf_resultNextFieldPosition.argtypes = [
    ctypes.c_void_p,  # uresult : UFormattedNumber*
    ctypes.c_void_p,  # ufpos : UFieldPosition* in/out
    ctypes.c_void_p,  # ec : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icu.dll')
unumf_resultNextFieldPosition = Fiddle::Function.new(
  lib['unumf_resultNextFieldPosition'],
  [
    Fiddle::TYPE_VOIDP,  # uresult : UFormattedNumber*
    Fiddle::TYPE_VOIDP,  # ufpos : UFieldPosition* in/out
    Fiddle::TYPE_VOIDP,  # ec : UErrorCode* in/out
  ],
  Fiddle::TYPE_CHAR, Fiddle::Function::CDECL)

#[link(name = "icu")]
extern "C" {
    fn unumf_resultNextFieldPosition(
        uresult: *const isize,  // UFormattedNumber*
        ufpos: *mut UFieldPosition,  // UFieldPosition* in/out
        ec: *mut i32  // UErrorCode* in/out
    ) -> i8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icu.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern sbyte unumf_resultNextFieldPosition(ref IntPtr uresult, IntPtr ufpos, ref int ec);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icu_unumf_resultNextFieldPosition' -Namespace Win32 -PassThru
# $api::unumf_resultNextFieldPosition(uresult, ufpos, ec)

#uselib "icu.dll"
#func global unumf_resultNextFieldPosition "unumf_resultNextFieldPosition" sptr, sptr, sptr
; unumf_resultNextFieldPosition uresult, varptr(ufpos), ec   ; 戻り値は stat
; uresult : UFormattedNumber* -> "sptr"
; ufpos : UFieldPosition* in/out -> "sptr"
; ec : 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 "icu.dll"
#cfunc global unumf_resultNextFieldPosition "unumf_resultNextFieldPosition" int, var, int
; res = unumf_resultNextFieldPosition(uresult, ufpos, ec)
; uresult : UFormattedNumber* -> "int"
; ufpos : UFieldPosition* in/out -> "var"
; ec : UErrorCode* in/out -> "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。

; CHAR unumf_resultNextFieldPosition(UFormattedNumber* uresult, UFieldPosition* ufpos, UErrorCode* ec)
#uselib "icu.dll"
#cfunc global unumf_resultNextFieldPosition "unumf_resultNextFieldPosition" int, var, int
; res = unumf_resultNextFieldPosition(uresult, ufpos, ec)
; uresult : UFormattedNumber* -> "int"
; ufpos : UFieldPosition* in/out -> "var"
; ec : UErrorCode* in/out -> "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 (
	icu = windows.NewLazySystemDLL("icu.dll")
	procunumf_resultNextFieldPosition = icu.NewProc("unumf_resultNextFieldPosition")
)

// uresult (UFormattedNumber*), ufpos (UFieldPosition* in/out), ec (UErrorCode* in/out)
r1, _, err := procunumf_resultNextFieldPosition.Call(
	uintptr(uresult),
	uintptr(ufpos),
	uintptr(ec),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // CHAR

function unumf_resultNextFieldPosition(
  uresult: Pointer;   // UFormattedNumber*
  ufpos: Pointer;   // UFieldPosition* in/out
  ec: Pointer   // UErrorCode* in/out
): Shortint; cdecl;
  external 'icu.dll' name 'unumf_resultNextFieldPosition';

result := DllCall("icu\unumf_resultNextFieldPosition"
    , "Ptr", uresult   ; UFormattedNumber*
    , "Ptr", ufpos   ; UFieldPosition* in/out
    , "Ptr", ec   ; UErrorCode* in/out
    , "Cdecl Char")   ; return: CHAR

●unumf_resultNextFieldPosition(uresult, ufpos, ec) = DLL("icu.dll", "char unumf_resultNextFieldPosition(void*, void*, void*)")
# 呼び出し: unumf_resultNextFieldPosition(uresult, ufpos, ec)
# uresult : UFormattedNumber* -> "void*"
# ufpos : UFieldPosition* in/out -> "void*"
# ec : 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。