GetViewportOrgEx

// GDI32.dll
#include <windows.h>

BOOL GetViewportOrgEx(
    HDC hdc,
    POINT* lppoint
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function GetViewportOrgEx(
    hdc As IntPtr,   ' HDC
    lppoint As IntPtr   ' POINT* out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' hdc : HDC
' lppoint : POINT* out
Declare PtrSafe Function GetViewportOrgEx Lib "gdi32" ( _
    ByVal hdc 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

GetViewportOrgEx = ctypes.windll.gdi32.GetViewportOrgEx
GetViewportOrgEx.restype = wintypes.BOOL
GetViewportOrgEx.argtypes = [
    wintypes.HANDLE,  # hdc : HDC
    ctypes.c_void_p,  # lppoint : POINT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
GetViewportOrgEx = Fiddle::Function.new(
  lib['GetViewportOrgEx'],
  [
    Fiddle::TYPE_VOIDP,  # hdc : HDC
    Fiddle::TYPE_VOIDP,  # lppoint : POINT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdi32")]
extern "system" {
    fn GetViewportOrgEx(
        hdc: *mut core::ffi::c_void,  // HDC
        lppoint: *mut POINT  // POINT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll")]
public static extern bool GetViewportOrgEx(IntPtr hdc, IntPtr lppoint);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_GetViewportOrgEx' -Namespace Win32 -PassThru
# $api::GetViewportOrgEx(hdc, lppoint)

#uselib "GDI32.dll"
#func global GetViewportOrgEx "GetViewportOrgEx" sptr, sptr
; GetViewportOrgEx hdc, varptr(lppoint)   ; 戻り値は stat
; hdc : HDC -> "sptr"
; lppoint : POINT* 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 (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procGetViewportOrgEx = gdi32.NewProc("GetViewportOrgEx")
)

// hdc (HDC), lppoint (POINT* out)
r1, _, err := procGetViewportOrgEx.Call(
	uintptr(hdc),
	uintptr(lppoint),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetViewportOrgEx(
  hdc: THandle;   // HDC
  lppoint: Pointer   // POINT* out
): BOOL; stdcall;
  external 'GDI32.dll' name 'GetViewportOrgEx';

result := DllCall("GDI32\GetViewportOrgEx"
    , "Ptr", hdc   ; HDC
    , "Ptr", lppoint   ; POINT* out
    , "Int")   ; return: BOOL

●GetViewportOrgEx(hdc, lppoint) = DLL("GDI32.dll", "bool GetViewportOrgEx(void*, void*)")
# 呼び出し: GetViewportOrgEx(hdc, lppoint)
# hdc : HDC -> "void*"
# lppoint : POINT* 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 "gdi32" fn GetViewportOrgEx(
    hdc: ?*anyopaque, // HDC
    lppoint: [*c]POINT // POINT* out
) callconv(std.os.windows.WINAPI) i32;

proc GetViewportOrgEx(
    hdc: pointer,  # HDC
    lppoint: ptr POINT  # POINT* out
): int32 {.importc: "GetViewportOrgEx", stdcall, dynlib: "GDI32.dll".}

pragma(lib, "gdi32");
extern(Windows)
int GetViewportOrgEx(
    void* hdc,   // HDC
    POINT* lppoint   // POINT* out
);

ccall((:GetViewportOrgEx, "GDI32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{POINT}),
      hdc, lppoint)
# hdc : HDC -> Ptr{Cvoid}
# lppoint : POINT* 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 GetViewportOrgEx(
    void* hdc,
    void* lppoint);
]]
local gdi32 = ffi.load("gdi32")
-- gdi32.GetViewportOrgEx(hdc, lppoint)
-- hdc : HDC
-- lppoint : POINT* 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('GDI32.dll');
const GetViewportOrgEx = lib.func('__stdcall', 'GetViewportOrgEx', 'int32_t', ['void *', 'void *']);
// GetViewportOrgEx(hdc, lppoint)
// hdc : HDC -> 'void *'
// lppoint : POINT* 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("GDI32.dll", {
  GetViewportOrgEx: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.GetViewportOrgEx(hdc, lppoint)
// hdc : HDC -> "pointer"
// lppoint : POINT* 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 GetViewportOrgEx(
    void* hdc,
    void* lppoint);
C, "GDI32.dll");
// $ffi->GetViewportOrgEx(hdc, lppoint);
// hdc : HDC
// lppoint : POINT* 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 Gdi32 extends StdCallLibrary {
    Gdi32 INSTANCE = Native.load("gdi32", Gdi32.class);
    boolean GetViewportOrgEx(
        Pointer hdc,   // HDC
        Pointer lppoint   // POINT* out
    );
}

@[Link("gdi32")]
lib LibGDI32
  fun GetViewportOrgEx = GetViewportOrgEx(
    hdc : Void*,   # HDC
    lppoint : POINT*   # POINT* 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 GetViewportOrgExNative = Int32 Function(Pointer<Void>, Pointer<Void>);
typedef GetViewportOrgExDart = int Function(Pointer<Void>, Pointer<Void>);
final GetViewportOrgEx = DynamicLibrary.open('GDI32.dll')
    .lookupFunction<GetViewportOrgExNative, GetViewportOrgExDart>('GetViewportOrgEx');
// hdc : HDC -> Pointer<Void>
// lppoint : POINT* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetViewportOrgEx(
  hdc: THandle;   // HDC
  lppoint: Pointer   // POINT* out
): BOOL; stdcall;
  external 'GDI32.dll' name 'GetViewportOrgEx';

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

foreign import stdcall safe "GetViewportOrgEx"
  c_GetViewportOrgEx :: Ptr () -> Ptr () -> IO CInt
-- hdc : HDC -> Ptr ()
-- lppoint : POINT* 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 getviewportorgex =
  foreign "GetViewportOrgEx"
    ((ptr void) @-> (ptr void) @-> returning int32_t)
(* hdc : HDC -> (ptr void) *)
(* lppoint : POINT* 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 gdi32 (t "GDI32.dll"))
(cffi:use-foreign-library gdi32)

(cffi:defcfun ("GetViewportOrgEx" get-viewport-org-ex :convention :stdcall) :int32
  (hdc :pointer)   ; HDC
  (lppoint :pointer))   ; POINT* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetViewportOrgEx = Win32::API::More->new('GDI32',
    'BOOL GetViewportOrgEx(HANDLE hdc, LPVOID lppoint)');
# my $ret = $GetViewportOrgEx->Call($hdc, $lppoint);
# hdc : HDC -> HANDLE
# lppoint : POINT* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。