ucol_strcollUTF8

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

UCollationResult ucol_strcollUTF8(
    const UCollator* coll,
    LPCSTR source,
    INT sourceLength,
    LPCSTR target,
    INT targetLength,
    UErrorCode* status
);

<DllImport("icuin.dll", ExactSpelling:=True, CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function ucol_strcollUTF8(
    ByRef coll As IntPtr,   ' UCollator*
    <MarshalAs(UnmanagedType.LPStr)> source As String,   ' LPCSTR
    sourceLength As Integer,   ' INT
    <MarshalAs(UnmanagedType.LPStr)> target As String,   ' LPCSTR
    targetLength As Integer,   ' INT
    ByRef status As Integer   ' UErrorCode* in/out
) As Integer
End Function

' coll : UCollator*
' source : LPCSTR
' sourceLength : INT
' target : LPCSTR
' targetLength : INT
' status : UErrorCode* in/out
Declare PtrSafe Function ucol_strcollUTF8 Lib "icuin" ( _
    ByRef coll As LongPtr, _
    ByVal source As String, _
    ByVal sourceLength As Long, _
    ByVal target As String, _
    ByVal targetLength As Long, _
    ByRef status 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

ucol_strcollUTF8 = ctypes.cdll.icuin.ucol_strcollUTF8
ucol_strcollUTF8.restype = ctypes.c_int
ucol_strcollUTF8.argtypes = [
    ctypes.c_void_p,  # coll : UCollator*
    wintypes.LPCSTR,  # source : LPCSTR
    ctypes.c_int,  # sourceLength : INT
    wintypes.LPCSTR,  # target : LPCSTR
    ctypes.c_int,  # targetLength : INT
    ctypes.c_void_p,  # status : UErrorCode* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('icuin.dll')
ucol_strcollUTF8 = Fiddle::Function.new(
  lib['ucol_strcollUTF8'],
  [
    Fiddle::TYPE_VOIDP,  # coll : UCollator*
    Fiddle::TYPE_VOIDP,  # source : LPCSTR
    Fiddle::TYPE_INT,  # sourceLength : INT
    Fiddle::TYPE_VOIDP,  # target : LPCSTR
    Fiddle::TYPE_INT,  # targetLength : INT
    Fiddle::TYPE_VOIDP,  # status : UErrorCode* in/out
  ],
  Fiddle::TYPE_INT, Fiddle::Function::CDECL)

#[link(name = "icuin")]
extern "C" {
    fn ucol_strcollUTF8(
        coll: *const isize,  // UCollator*
        source: *const u8,  // LPCSTR
        sourceLength: i32,  // INT
        target: *const u8,  // LPCSTR
        targetLength: i32,  // INT
        status: *mut i32  // UErrorCode* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("icuin.dll", CallingConvention = CallingConvention.Cdecl)]
public static extern int ucol_strcollUTF8(ref IntPtr coll, [MarshalAs(UnmanagedType.LPStr)] string source, int sourceLength, [MarshalAs(UnmanagedType.LPStr)] string target, int targetLength, ref int status);
"@
$api = Add-Type -MemberDefinition $sig -Name 'icuin_ucol_strcollUTF8' -Namespace Win32 -PassThru
# $api::ucol_strcollUTF8(coll, source, sourceLength, target, targetLength, status)

#uselib "icuin.dll"
#func global ucol_strcollUTF8 "ucol_strcollUTF8" sptr, sptr, sptr, sptr, sptr, sptr
; ucol_strcollUTF8 coll, source, sourceLength, target, targetLength, status   ; 戻り値は stat
; coll : UCollator* -> "sptr"
; source : LPCSTR -> "sptr"
; sourceLength : INT -> "sptr"
; target : LPCSTR -> "sptr"
; targetLength : INT -> "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 ucol_strcollUTF8 "ucol_strcollUTF8" int, str, int, str, int, int
; res = ucol_strcollUTF8(coll, source, sourceLength, target, targetLength, status)
; coll : UCollator* -> "int"
; source : LPCSTR -> "str"
; sourceLength : INT -> "int"
; target : LPCSTR -> "str"
; targetLength : INT -> "int"
; status : UErrorCode* in/out -> "int"

; UCollationResult ucol_strcollUTF8(UCollator* coll, LPCSTR source, INT sourceLength, LPCSTR target, INT targetLength, UErrorCode* status)
#uselib "icuin.dll"
#cfunc global ucol_strcollUTF8 "ucol_strcollUTF8" int, str, int, str, int, int
; res = ucol_strcollUTF8(coll, source, sourceLength, target, targetLength, status)
; coll : UCollator* -> "int"
; source : LPCSTR -> "str"
; sourceLength : INT -> "int"
; target : LPCSTR -> "str"
; targetLength : INT -> "int"
; status : UErrorCode* in/out -> "int"

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

var (
	icuin = windows.NewLazySystemDLL("icuin.dll")
	procucol_strcollUTF8 = icuin.NewProc("ucol_strcollUTF8")
)

// coll (UCollator*), source (LPCSTR), sourceLength (INT), target (LPCSTR), targetLength (INT), status (UErrorCode* in/out)
r1, _, err := procucol_strcollUTF8.Call(
	uintptr(coll),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(source))),
	uintptr(sourceLength),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(target))),
	uintptr(targetLength),
	uintptr(status),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // UCollationResult

function ucol_strcollUTF8(
  coll: Pointer;   // UCollator*
  source: PAnsiChar;   // LPCSTR
  sourceLength: Integer;   // INT
  target: PAnsiChar;   // LPCSTR
  targetLength: Integer;   // INT
  status: Pointer   // UErrorCode* in/out
): Integer; cdecl;
  external 'icuin.dll' name 'ucol_strcollUTF8';

result := DllCall("icuin\ucol_strcollUTF8"
    , "Ptr", coll   ; UCollator*
    , "AStr", source   ; LPCSTR
    , "Int", sourceLength   ; INT
    , "AStr", target   ; LPCSTR
    , "Int", targetLength   ; INT
    , "Ptr", status   ; UErrorCode* in/out
    , "Cdecl Int")   ; return: UCollationResult

●ucol_strcollUTF8(coll, source, sourceLength, target, targetLength, status) = DLL("icuin.dll", "int ucol_strcollUTF8(void*, char*, int, char*, int, void*)")
# 呼び出し: ucol_strcollUTF8(coll, source, sourceLength, target, targetLength, status)
# coll : UCollator* -> "void*"
# source : LPCSTR -> "char*"
# sourceLength : INT -> "int"
# target : LPCSTR -> "char*"
# targetLength : INT -> "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。