ClientToScreen

// USER32.dll
#include <windows.h>

BOOL ClientToScreen(
    HWND hWnd,
    POINT* lpPoint
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function ClientToScreen(
    hWnd As IntPtr,   ' HWND
    lpPoint As IntPtr   ' POINT* in/out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' hWnd : HWND
' lpPoint : POINT* in/out
Declare PtrSafe Function ClientToScreen Lib "user32" ( _
    ByVal hWnd As LongPtr, _
    ByVal lpPoint As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ClientToScreen = ctypes.windll.user32.ClientToScreen
ClientToScreen.restype = wintypes.BOOL
ClientToScreen.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND
    ctypes.c_void_p,  # lpPoint : POINT* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
ClientToScreen = Fiddle::Function.new(
  lib['ClientToScreen'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # lpPoint : POINT* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn ClientToScreen(
        hWnd: *mut core::ffi::c_void,  // HWND
        lpPoint: *mut POINT  // POINT* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll")]
public static extern bool ClientToScreen(IntPtr hWnd, IntPtr lpPoint);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_ClientToScreen' -Namespace Win32 -PassThru
# $api::ClientToScreen(hWnd, lpPoint)

#uselib "USER32.dll"
#func global ClientToScreen "ClientToScreen" sptr, sptr
; ClientToScreen hWnd, varptr(lpPoint)   ; 戻り値は stat
; hWnd : HWND -> "sptr"
; lpPoint : POINT* 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。

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procClientToScreen = user32.NewProc("ClientToScreen")
)

// hWnd (HWND), lpPoint (POINT* in/out)
r1, _, err := procClientToScreen.Call(
	uintptr(hWnd),
	uintptr(lpPoint),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function ClientToScreen(
  hWnd: THandle;   // HWND
  lpPoint: Pointer   // POINT* in/out
): BOOL; stdcall;
  external 'USER32.dll' name 'ClientToScreen';

result := DllCall("USER32\ClientToScreen"
    , "Ptr", hWnd   ; HWND
    , "Ptr", lpPoint   ; POINT* in/out
    , "Int")   ; return: BOOL

●ClientToScreen(hWnd, lpPoint) = DLL("USER32.dll", "bool ClientToScreen(void*, void*)")
# 呼び出し: ClientToScreen(hWnd, lpPoint)
# hWnd : HWND -> "void*"
# lpPoint : POINT* 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)。

const std = @import("std");

extern "user32" fn ClientToScreen(
    hWnd: ?*anyopaque, // HWND
    lpPoint: [*c]POINT // POINT* in/out
) callconv(std.os.windows.WINAPI) i32;

proc ClientToScreen(
    hWnd: pointer,  # HWND
    lpPoint: ptr POINT  # POINT* in/out
): int32 {.importc: "ClientToScreen", stdcall, dynlib: "USER32.dll".}

pragma(lib, "user32");
extern(Windows)
int ClientToScreen(
    void* hWnd,   // HWND
    POINT* lpPoint   // POINT* in/out
);

ccall((:ClientToScreen, "USER32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{POINT}),
      hWnd, lpPoint)
# hWnd : HWND -> Ptr{Cvoid}
# lpPoint : POINT* in/out -> Ptr{POINT}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t ClientToScreen(
    void* hWnd,
    void* lpPoint);
]]
local user32 = ffi.load("user32")
-- user32.ClientToScreen(hWnd, lpPoint)
-- hWnd : HWND
-- lpPoint : POINT* in/out
-- 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。

const koffi = require('koffi');
const lib = koffi.load('USER32.dll');
const ClientToScreen = lib.func('__stdcall', 'ClientToScreen', 'int32_t', ['void *', 'void *']);
// ClientToScreen(hWnd, lpPoint)
// hWnd : HWND -> 'void *'
// lpPoint : POINT* in/out -> 'void *'
// 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("USER32.dll", {
  ClientToScreen: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.ClientToScreen(hWnd, lpPoint)
// hWnd : HWND -> "pointer"
// lpPoint : POINT* in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t ClientToScreen(
    void* hWnd,
    void* lpPoint);
C, "USER32.dll");
// $ffi->ClientToScreen(hWnd, lpPoint);
// hWnd : HWND
// lpPoint : POINT* in/out
// 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 User32 extends StdCallLibrary {
    User32 INSTANCE = Native.load("user32", User32.class);
    boolean ClientToScreen(
        Pointer hWnd,   // HWND
        Pointer lpPoint   // POINT* in/out
    );
}

@[Link("user32")]
lib LibUSER32
  fun ClientToScreen = ClientToScreen(
    hWnd : Void*,   # HWND
    lpPoint : POINT*   # POINT* in/out
  ) : Int32
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 ClientToScreenNative = Int32 Function(Pointer<Void>, Pointer<Void>);
typedef ClientToScreenDart = int Function(Pointer<Void>, Pointer<Void>);
final ClientToScreen = DynamicLibrary.open('USER32.dll')
    .lookupFunction<ClientToScreenNative, ClientToScreenDart>('ClientToScreen');
// hWnd : HWND -> Pointer<Void>
// lpPoint : POINT* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function ClientToScreen(
  hWnd: THandle;   // HWND
  lpPoint: Pointer   // POINT* in/out
): BOOL; stdcall;
  external 'USER32.dll' name 'ClientToScreen';

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

foreign import stdcall safe "ClientToScreen"
  c_ClientToScreen :: Ptr () -> Ptr () -> IO CInt
-- hWnd : HWND -> Ptr ()
-- lpPoint : POINT* in/out -> Ptr ()
-- 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 clienttoscreen =
  foreign "ClientToScreen"
    ((ptr void) @-> (ptr void) @-> returning int32_t)
(* hWnd : HWND -> (ptr void) *)
(* lpPoint : POINT* in/out -> (ptr void) *)
(* 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 user32 (t "USER32.dll"))
(cffi:use-foreign-library user32)

(cffi:defcfun ("ClientToScreen" client-to-screen :convention :stdcall) :int32
  (h-wnd :pointer)   ; HWND
  (lp-point :pointer))   ; POINT* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $ClientToScreen = Win32::API::More->new('USER32',
    'BOOL ClientToScreen(HANDLE hWnd, LPVOID lpPoint)');
# my $ret = $ClientToScreen->Call($hWnd, $lpPoint);
# hWnd : HWND -> HANDLE
# lpPoint : POINT* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。