ucfpos_constrainField

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

void ucfpos_constrainField(
    UConstrainedFieldPosition* ucfpos,
    INT category,
    INT field,
    UErrorCode* ec
);

<DllImport("icu.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Sub ucfpos_constrainField(
    ByRef ucfpos As IntPtr,   ' UConstrainedFieldPosition* in/out
    category As Integer,   ' INT
    field As Integer,   ' INT
    ByRef ec As Integer   ' UErrorCode* in/out
)
End Sub

' ucfpos : UConstrainedFieldPosition* in/out
' category : INT
' field : INT
' ec : UErrorCode* in/out
Declare PtrSafe Sub ucfpos_constrainField Lib "icu" ( _
    ByRef ucfpos As LongPtr, _
    ByVal category As Long, _
    ByVal field As Long, _
    ByRef ec As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ucfpos_constrainField = ctypes.cdll.icu.ucfpos_constrainField
ucfpos_constrainField.restype = None
ucfpos_constrainField.argtypes = [
    ctypes.c_void_p,  # ucfpos : UConstrainedFieldPosition* in/out
    ctypes.c_int,  # category : INT
    ctypes.c_int,  # field : INT
    ctypes.c_void_p,  # ec : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icu.dll')
ucfpos_constrainField = Fiddle::Function.new(
  lib['ucfpos_constrainField'],
  [
    Fiddle::TYPE_VOIDP,  # ucfpos : UConstrainedFieldPosition* in/out
    Fiddle::TYPE_INT,  # category : INT
    Fiddle::TYPE_INT,  # field : INT
    Fiddle::TYPE_VOIDP,  # ec : UErrorCode* in/out
  ],
  Fiddle::TYPE_VOID, Fiddle::Function::CDECL)

#[link(name = "icu")]
extern "C" {
    fn ucfpos_constrainField(
        ucfpos: *mut isize,  // UConstrainedFieldPosition* in/out
        category: i32,  // INT
        field: i32,  // INT
        ec: *mut i32  // UErrorCode* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icu.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern void ucfpos_constrainField(ref IntPtr ucfpos, int category, int field, ref int ec);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icu_ucfpos_constrainField' -Namespace Win32 -PassThru
# $api::ucfpos_constrainField(ucfpos, category, field, ec)

#uselib "icu.dll"
#func global ucfpos_constrainField "ucfpos_constrainField" sptr, sptr, sptr, sptr
; ucfpos_constrainField ucfpos, category, field, ec
; ucfpos : UConstrainedFieldPosition* in/out -> "sptr"
; category : INT -> "sptr"
; field : INT -> "sptr"
; ec : UErrorCode* in/out -> "sptr"

#uselib "icu.dll"
#func global ucfpos_constrainField "ucfpos_constrainField" int, int, int, int
; ucfpos_constrainField ucfpos, category, field, ec
; ucfpos : UConstrainedFieldPosition* in/out -> "int"
; category : INT -> "int"
; field : INT -> "int"
; ec : UErrorCode* in/out -> "int"

; void ucfpos_constrainField(UConstrainedFieldPosition* ucfpos, INT category, INT field, UErrorCode* ec)
#uselib "icu.dll"
#func global ucfpos_constrainField "ucfpos_constrainField" int, int, int, int
; ucfpos_constrainField ucfpos, category, field, ec
; ucfpos : UConstrainedFieldPosition* in/out -> "int"
; category : INT -> "int"
; field : INT -> "int"
; ec : UErrorCode* in/out -> "int"

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

var (
	icu = windows.NewLazySystemDLL("icu.dll")
	procucfpos_constrainField = icu.NewProc("ucfpos_constrainField")
)

// ucfpos (UConstrainedFieldPosition* in/out), category (INT), field (INT), ec (UErrorCode* in/out)
r1, _, err := procucfpos_constrainField.Call(
	uintptr(ucfpos),
	uintptr(category),
	uintptr(field),
	uintptr(ec),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure ucfpos_constrainField(
  ucfpos: Pointer;   // UConstrainedFieldPosition* in/out
  category: Integer;   // INT
  field: Integer;   // INT
  ec: Pointer   // UErrorCode* in/out
); cdecl;
  external 'icu.dll' name 'ucfpos_constrainField';

result := DllCall("icu\ucfpos_constrainField"
    , "Ptr", ucfpos   ; UConstrainedFieldPosition* in/out
    , "Int", category   ; INT
    , "Int", field   ; INT
    , "Ptr", ec   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: void

●ucfpos_constrainField(ucfpos, category, field, ec) = DLL("icu.dll", "int ucfpos_constrainField(void*, int, int, void*)")
# 呼び出し: ucfpos_constrainField(ucfpos, category, field, ec)
# ucfpos : UConstrainedFieldPosition* in/out -> "void*"
# category : INT -> "int"
# field : INT -> "int"
# 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。