GetCharacterPlacementW

// GDI32.dll  (Unicode / -W)
#include <windows.h>

DWORD GetCharacterPlacementW(
    HDC hdc,
    LPCWSTR lpString,
    INT nCount,
    INT nMexExtent,
    GCP_RESULTSW* lpResults,
    GET_CHARACTER_PLACEMENT_FLAGS dwFlags
);

<DllImport("GDI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function GetCharacterPlacementW(
    hdc As IntPtr,   ' HDC
    <MarshalAs(UnmanagedType.LPWStr)> lpString As String,   ' LPCWSTR
    nCount As Integer,   ' INT
    nMexExtent As Integer,   ' INT
    lpResults As IntPtr,   ' GCP_RESULTSW* in/out
    dwFlags As UInteger   ' GET_CHARACTER_PLACEMENT_FLAGS
) As UInteger
End Function

' hdc : HDC
' lpString : LPCWSTR
' nCount : INT
' nMexExtent : INT
' lpResults : GCP_RESULTSW* in/out
' dwFlags : GET_CHARACTER_PLACEMENT_FLAGS
Declare PtrSafe Function GetCharacterPlacementW Lib "gdi32" ( _
    ByVal hdc As LongPtr, _
    ByVal lpString As LongPtr, _
    ByVal nCount As Long, _
    ByVal nMexExtent As Long, _
    ByVal lpResults As LongPtr, _
    ByVal dwFlags As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetCharacterPlacementW = ctypes.windll.gdi32.GetCharacterPlacementW
GetCharacterPlacementW.restype = wintypes.DWORD
GetCharacterPlacementW.argtypes = [
    wintypes.HANDLE,  # hdc : HDC
    wintypes.LPCWSTR,  # lpString : LPCWSTR
    ctypes.c_int,  # nCount : INT
    ctypes.c_int,  # nMexExtent : INT
    ctypes.c_void_p,  # lpResults : GCP_RESULTSW* in/out
    wintypes.DWORD,  # dwFlags : GET_CHARACTER_PLACEMENT_FLAGS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
GetCharacterPlacementW = Fiddle::Function.new(
  lib['GetCharacterPlacementW'],
  [
    Fiddle::TYPE_VOIDP,  # hdc : HDC
    Fiddle::TYPE_VOIDP,  # lpString : LPCWSTR
    Fiddle::TYPE_INT,  # nCount : INT
    Fiddle::TYPE_INT,  # nMexExtent : INT
    Fiddle::TYPE_VOIDP,  # lpResults : GCP_RESULTSW* in/out
    -Fiddle::TYPE_INT,  # dwFlags : GET_CHARACTER_PLACEMENT_FLAGS
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "gdi32")]
extern "system" {
    fn GetCharacterPlacementW(
        hdc: *mut core::ffi::c_void,  // HDC
        lpString: *const u16,  // LPCWSTR
        nCount: i32,  // INT
        nMexExtent: i32,  // INT
        lpResults: *mut GCP_RESULTSW,  // GCP_RESULTSW* in/out
        dwFlags: u32  // GET_CHARACTER_PLACEMENT_FLAGS
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GDI32.dll", CharSet = CharSet.Unicode)]
public static extern uint GetCharacterPlacementW(IntPtr hdc, [MarshalAs(UnmanagedType.LPWStr)] string lpString, int nCount, int nMexExtent, IntPtr lpResults, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_GetCharacterPlacementW' -Namespace Win32 -PassThru
# $api::GetCharacterPlacementW(hdc, lpString, nCount, nMexExtent, lpResults, dwFlags)

#uselib "GDI32.dll"
#func global GetCharacterPlacementW "GetCharacterPlacementW" wptr, wptr, wptr, wptr, wptr, wptr
; GetCharacterPlacementW hdc, lpString, nCount, nMexExtent, varptr(lpResults), dwFlags   ; 戻り値は stat
; hdc : HDC -> "wptr"
; lpString : LPCWSTR -> "wptr"
; nCount : INT -> "wptr"
; nMexExtent : INT -> "wptr"
; lpResults : GCP_RESULTSW* in/out -> "wptr"
; dwFlags : GET_CHARACTER_PLACEMENT_FLAGS -> "wptr"
; ※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。

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procGetCharacterPlacementW = gdi32.NewProc("GetCharacterPlacementW")
)

// hdc (HDC), lpString (LPCWSTR), nCount (INT), nMexExtent (INT), lpResults (GCP_RESULTSW* in/out), dwFlags (GET_CHARACTER_PLACEMENT_FLAGS)
r1, _, err := procGetCharacterPlacementW.Call(
	uintptr(hdc),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpString))),
	uintptr(nCount),
	uintptr(nMexExtent),
	uintptr(lpResults),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function GetCharacterPlacementW(
  hdc: THandle;   // HDC
  lpString: PWideChar;   // LPCWSTR
  nCount: Integer;   // INT
  nMexExtent: Integer;   // INT
  lpResults: Pointer;   // GCP_RESULTSW* in/out
  dwFlags: DWORD   // GET_CHARACTER_PLACEMENT_FLAGS
): DWORD; stdcall;
  external 'GDI32.dll' name 'GetCharacterPlacementW';

result := DllCall("GDI32\GetCharacterPlacementW"
    , "Ptr", hdc   ; HDC
    , "WStr", lpString   ; LPCWSTR
    , "Int", nCount   ; INT
    , "Int", nMexExtent   ; INT
    , "Ptr", lpResults   ; GCP_RESULTSW* in/out
    , "UInt", dwFlags   ; GET_CHARACTER_PLACEMENT_FLAGS
    , "UInt")   ; return: DWORD

●GetCharacterPlacementW(hdc, lpString, nCount, nMexExtent, lpResults, dwFlags) = DLL("GDI32.dll", "dword GetCharacterPlacementW(void*, char*, int, int, void*, dword)")
# 呼び出し: GetCharacterPlacementW(hdc, lpString, nCount, nMexExtent, lpResults, dwFlags)
# hdc : HDC -> "void*"
# lpString : LPCWSTR -> "char*"
# nCount : INT -> "int"
# nMexExtent : INT -> "int"
# lpResults : GCP_RESULTSW* in/out -> "void*"
# dwFlags : GET_CHARACTER_PLACEMENT_FLAGS -> "dword"
# 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。

const std = @import("std");

extern "gdi32" fn GetCharacterPlacementW(
    hdc: ?*anyopaque, // HDC
    lpString: [*c]const u16, // LPCWSTR
    nCount: i32, // INT
    nMexExtent: i32, // INT
    lpResults: [*c]GCP_RESULTSW, // GCP_RESULTSW* in/out
    dwFlags: u32 // GET_CHARACTER_PLACEMENT_FLAGS
) callconv(std.os.windows.WINAPI) u32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc GetCharacterPlacementW(
    hdc: pointer,  # HDC
    lpString: WideCString,  # LPCWSTR
    nCount: int32,  # INT
    nMexExtent: int32,  # INT
    lpResults: ptr GCP_RESULTSW,  # GCP_RESULTSW* in/out
    dwFlags: uint32  # GET_CHARACTER_PLACEMENT_FLAGS
): uint32 {.importc: "GetCharacterPlacementW", stdcall, dynlib: "GDI32.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "gdi32");
extern(Windows)
uint GetCharacterPlacementW(
    void* hdc,   // HDC
    const(wchar)* lpString,   // LPCWSTR
    int nCount,   // INT
    int nMexExtent,   // INT
    GCP_RESULTSW* lpResults,   // GCP_RESULTSW* in/out
    uint dwFlags   // GET_CHARACTER_PLACEMENT_FLAGS
);

ccall((:GetCharacterPlacementW, "GDI32.dll"), stdcall, UInt32,
      (Ptr{Cvoid}, Cwstring, Int32, Int32, Ptr{GCP_RESULTSW}, UInt32),
      hdc, lpString, nCount, nMexExtent, lpResults, dwFlags)
# hdc : HDC -> Ptr{Cvoid}
# lpString : LPCWSTR -> Cwstring
# nCount : INT -> Int32
# nMexExtent : INT -> Int32
# lpResults : GCP_RESULTSW* in/out -> Ptr{GCP_RESULTSW}
# dwFlags : GET_CHARACTER_PLACEMENT_FLAGS -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
uint32_t GetCharacterPlacementW(
    void* hdc,
    const uint16_t* lpString,
    int32_t nCount,
    int32_t nMexExtent,
    void* lpResults,
    uint32_t dwFlags);
]]
local gdi32 = ffi.load("gdi32")
-- gdi32.GetCharacterPlacementW(hdc, lpString, nCount, nMexExtent, lpResults, dwFlags)
-- hdc : HDC
-- lpString : LPCWSTR
-- nCount : INT
-- nMexExtent : INT
-- lpResults : GCP_RESULTSW* in/out
-- dwFlags : GET_CHARACTER_PLACEMENT_FLAGS
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('GDI32.dll');
const GetCharacterPlacementW = lib.func('__stdcall', 'GetCharacterPlacementW', 'uint32_t', ['void *', 'str16', 'int32_t', 'int32_t', 'void *', 'uint32_t']);
// GetCharacterPlacementW(hdc, lpString, nCount, nMexExtent, lpResults, dwFlags)
// hdc : HDC -> 'void *'
// lpString : LPCWSTR -> 'str16'
// nCount : INT -> 'int32_t'
// nMexExtent : INT -> 'int32_t'
// lpResults : GCP_RESULTSW* in/out -> 'void *'
// dwFlags : GET_CHARACTER_PLACEMENT_FLAGS -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("GDI32.dll", {
  GetCharacterPlacementW: { parameters: ["pointer", "buffer", "i32", "i32", "pointer", "u32"], result: "u32" },
});
// lib.symbols.GetCharacterPlacementW(hdc, lpString, nCount, nMexExtent, lpResults, dwFlags)
// hdc : HDC -> "pointer"
// lpString : LPCWSTR -> "buffer"
// nCount : INT -> "i32"
// nMexExtent : INT -> "i32"
// lpResults : GCP_RESULTSW* in/out -> "pointer"
// dwFlags : GET_CHARACTER_PLACEMENT_FLAGS -> "u32"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)を Uint8Array で渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
uint32_t GetCharacterPlacementW(
    void* hdc,
    const uint16_t* lpString,
    int32_t nCount,
    int32_t nMexExtent,
    void* lpResults,
    uint32_t dwFlags);
C, "GDI32.dll");
// $ffi->GetCharacterPlacementW(hdc, lpString, nCount, nMexExtent, lpResults, dwFlags);
// hdc : HDC
// lpString : LPCWSTR
// nCount : INT
// nMexExtent : INT
// lpResults : GCP_RESULTSW* in/out
// dwFlags : GET_CHARACTER_PLACEMENT_FLAGS
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Gdi32 extends StdCallLibrary {
    Gdi32 INSTANCE = Native.load("gdi32", Gdi32.class, W32APIOptions.UNICODE_OPTIONS);
    int GetCharacterPlacementW(
        Pointer hdc,   // HDC
        WString lpString,   // LPCWSTR
        int nCount,   // INT
        int nMexExtent,   // INT
        Pointer lpResults,   // GCP_RESULTSW* in/out
        int dwFlags   // GET_CHARACTER_PLACEMENT_FLAGS
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("gdi32")]
lib LibGDI32
  fun GetCharacterPlacementW = GetCharacterPlacementW(
    hdc : Void*,   # HDC
    lpString : UInt16*,   # LPCWSTR
    nCount : Int32,   # INT
    nMexExtent : Int32,   # INT
    lpResults : GCP_RESULTSW*,   # GCP_RESULTSW* in/out
    dwFlags : UInt32   # GET_CHARACTER_PLACEMENT_FLAGS
  ) : UInt32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef GetCharacterPlacementWNative = Uint32 Function(Pointer<Void>, Pointer<Utf16>, Int32, Int32, Pointer<Void>, Uint32);
typedef GetCharacterPlacementWDart = int Function(Pointer<Void>, Pointer<Utf16>, int, int, Pointer<Void>, int);
final GetCharacterPlacementW = DynamicLibrary.open('GDI32.dll')
    .lookupFunction<GetCharacterPlacementWNative, GetCharacterPlacementWDart>('GetCharacterPlacementW');
// hdc : HDC -> Pointer<Void>
// lpString : LPCWSTR -> Pointer<Utf16>
// nCount : INT -> Int32
// nMexExtent : INT -> Int32
// lpResults : GCP_RESULTSW* in/out -> Pointer<Void>
// dwFlags : GET_CHARACTER_PLACEMENT_FLAGS -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetCharacterPlacementW(
  hdc: THandle;   // HDC
  lpString: PWideChar;   // LPCWSTR
  nCount: Integer;   // INT
  nMexExtent: Integer;   // INT
  lpResults: Pointer;   // GCP_RESULTSW* in/out
  dwFlags: DWORD   // GET_CHARACTER_PLACEMENT_FLAGS
): DWORD; stdcall;
  external 'GDI32.dll' name 'GetCharacterPlacementW';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GetCharacterPlacementW"
  c_GetCharacterPlacementW :: Ptr () -> CWString -> Int32 -> Int32 -> Ptr () -> Word32 -> IO Word32
-- hdc : HDC -> Ptr ()
-- lpString : LPCWSTR -> CWString
-- nCount : INT -> Int32
-- nMexExtent : INT -> Int32
-- lpResults : GCP_RESULTSW* in/out -> Ptr ()
-- dwFlags : GET_CHARACTER_PLACEMENT_FLAGS -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let getcharacterplacementw =
  foreign "GetCharacterPlacementW"
    ((ptr void) @-> (ptr uint16_t) @-> int32_t @-> int32_t @-> (ptr void) @-> uint32_t @-> returning uint32_t)
(* hdc : HDC -> (ptr void) *)
(* lpString : LPCWSTR -> (ptr uint16_t) *)
(* nCount : INT -> int32_t *)
(* nMexExtent : INT -> int32_t *)
(* lpResults : GCP_RESULTSW* in/out -> (ptr void) *)
(* dwFlags : GET_CHARACTER_PLACEMENT_FLAGS -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library gdi32 (t "GDI32.dll"))
(cffi:use-foreign-library gdi32)

(cffi:defcfun ("GetCharacterPlacementW" get-character-placement-w :convention :stdcall) :uint32
  (hdc :pointer)   ; HDC
  (lp-string (:string :encoding :utf-16le))   ; LPCWSTR
  (n-count :int32)   ; INT
  (n-mex-extent :int32)   ; INT
  (lp-results :pointer)   ; GCP_RESULTSW* in/out
  (dw-flags :uint32))   ; GET_CHARACTER_PLACEMENT_FLAGS
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetCharacterPlacementW = Win32::API::More->new('GDI32',
    'DWORD GetCharacterPlacementW(HANDLE hdc, LPCWSTR lpString, int nCount, int nMexExtent, LPVOID lpResults, DWORD dwFlags)');
# my $ret = $GetCharacterPlacementW->Call($hdc, $lpString, $nCount, $nMexExtent, $lpResults, $dwFlags);
# hdc : HDC -> HANDLE
# lpString : LPCWSTR -> LPCWSTR
# nCount : INT -> int
# nMexExtent : INT -> int
# lpResults : GCP_RESULTSW* in/out -> LPVOID
# dwFlags : GET_CHARACTER_PLACEMENT_FLAGS -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。