GdipDrawLine

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

Status GdipDrawLine(
    GpGraphics* graphics,
    GpPen* pen,
    FLOAT x1,
    FLOAT y1,
    FLOAT x2,
    FLOAT y2
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipDrawLine(
    graphics As IntPtr,   ' GpGraphics* in/out
    pen As IntPtr,   ' GpPen* in/out
    x1 As Single,   ' FLOAT
    y1 As Single,   ' FLOAT
    x2 As Single,   ' FLOAT
    y2 As Single   ' FLOAT
) As Integer
End Function

' graphics : GpGraphics* in/out
' pen : GpPen* in/out
' x1 : FLOAT
' y1 : FLOAT
' x2 : FLOAT
' y2 : FLOAT
Declare PtrSafe Function GdipDrawLine Lib "gdiplus" ( _
    ByVal graphics As LongPtr, _
    ByVal pen As LongPtr, _
    ByVal x1 As Single, _
    ByVal y1 As Single, _
    ByVal x2 As Single, _
    ByVal y2 As Single) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GdipDrawLine = ctypes.windll.gdiplus.GdipDrawLine
GdipDrawLine.restype = ctypes.c_int
GdipDrawLine.argtypes = [
    ctypes.c_void_p,  # graphics : GpGraphics* in/out
    ctypes.c_void_p,  # pen : GpPen* in/out
    ctypes.c_float,  # x1 : FLOAT
    ctypes.c_float,  # y1 : FLOAT
    ctypes.c_float,  # x2 : FLOAT
    ctypes.c_float,  # y2 : FLOAT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipDrawLine = Fiddle::Function.new(
  lib['GdipDrawLine'],
  [
    Fiddle::TYPE_VOIDP,  # graphics : GpGraphics* in/out
    Fiddle::TYPE_VOIDP,  # pen : GpPen* in/out
    Fiddle::TYPE_FLOAT,  # x1 : FLOAT
    Fiddle::TYPE_FLOAT,  # y1 : FLOAT
    Fiddle::TYPE_FLOAT,  # x2 : FLOAT
    Fiddle::TYPE_FLOAT,  # y2 : FLOAT
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipDrawLine(
        graphics: *mut GpGraphics,  // GpGraphics* in/out
        pen: *mut GpPen,  // GpPen* in/out
        x1: f32,  // FLOAT
        y1: f32,  // FLOAT
        x2: f32,  // FLOAT
        y2: f32  // FLOAT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipDrawLine(IntPtr graphics, IntPtr pen, float x1, float y1, float x2, float y2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipDrawLine' -Namespace Win32 -PassThru
# $api::GdipDrawLine(graphics, pen, x1, y1, x2, y2)

#uselib "gdiplus.dll"
#func global GdipDrawLine "GdipDrawLine" sptr, sptr, float, float, float, float
; GdipDrawLine varptr(graphics), varptr(pen), x1, y1, x2, y2   ; 戻り値は stat
; graphics : GpGraphics* in/out -> "sptr"
; pen : GpPen* in/out -> "sptr"
; x1 : FLOAT -> "float"
; y1 : FLOAT -> "float"
; x2 : FLOAT -> "float"
; y2 : FLOAT -> "float"
; ※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 (
	"math"
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipDrawLine = gdiplus.NewProc("GdipDrawLine")
)

// graphics (GpGraphics* in/out), pen (GpPen* in/out), x1 (FLOAT), y1 (FLOAT), x2 (FLOAT), y2 (FLOAT)
r1, _, err := procGdipDrawLine.Call(
	uintptr(graphics),
	uintptr(pen),
	uintptr(math.Float32bits(x1)),
	uintptr(math.Float32bits(y1)),
	uintptr(math.Float32bits(x2)),
	uintptr(math.Float32bits(y2)),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status
// 注意: float/double 引数は proc.Call では XMM レジスタに渡せません。
// windows.SyscallN(proc.Addr(), math.Float64bits(x), ...) もしくは cgo を使用してください。

function GdipDrawLine(
  graphics: Pointer;   // GpGraphics* in/out
  pen: Pointer;   // GpPen* in/out
  x1: Single;   // FLOAT
  y1: Single;   // FLOAT
  x2: Single;   // FLOAT
  y2: Single   // FLOAT
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipDrawLine';

result := DllCall("gdiplus\GdipDrawLine"
    , "Ptr", graphics   ; GpGraphics* in/out
    , "Ptr", pen   ; GpPen* in/out
    , "Float", x1   ; FLOAT
    , "Float", y1   ; FLOAT
    , "Float", x2   ; FLOAT
    , "Float", y2   ; FLOAT
    , "Int")   ; return: Status

●GdipDrawLine(graphics, pen, x1, y1, x2, y2) = DLL("gdiplus.dll", "int GdipDrawLine(void*, void*, float, float, float, float)")
# 呼び出し: GdipDrawLine(graphics, pen, x1, y1, x2, y2)
# graphics : GpGraphics* in/out -> "void*"
# pen : GpPen* in/out -> "void*"
# x1 : FLOAT -> "float"
# y1 : FLOAT -> "float"
# x2 : FLOAT -> "float"
# y2 : FLOAT -> "float"
# 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 "gdiplus" fn GdipDrawLine(
    graphics: [*c]GpGraphics, // GpGraphics* in/out
    pen: [*c]GpPen, // GpPen* in/out
    x1: f32, // FLOAT
    y1: f32, // FLOAT
    x2: f32, // FLOAT
    y2: f32 // FLOAT
) callconv(std.os.windows.WINAPI) i32;

proc GdipDrawLine(
    graphics: ptr GpGraphics,  # GpGraphics* in/out
    pen: ptr GpPen,  # GpPen* in/out
    x1: float32,  # FLOAT
    y1: float32,  # FLOAT
    x2: float32,  # FLOAT
    y2: float32  # FLOAT
): int32 {.importc: "GdipDrawLine", stdcall, dynlib: "gdiplus.dll".}

pragma(lib, "gdiplus");
extern(Windows)
int GdipDrawLine(
    GpGraphics* graphics,   // GpGraphics* in/out
    GpPen* pen,   // GpPen* in/out
    float x1,   // FLOAT
    float y1,   // FLOAT
    float x2,   // FLOAT
    float y2   // FLOAT
);

ccall((:GdipDrawLine, "gdiplus.dll"), stdcall, Int32,
      (Ptr{GpGraphics}, Ptr{GpPen}, Float32, Float32, Float32, Float32),
      graphics, pen, x1, y1, x2, y2)
# graphics : GpGraphics* in/out -> Ptr{GpGraphics}
# pen : GpPen* in/out -> Ptr{GpPen}
# x1 : FLOAT -> Float32
# y1 : FLOAT -> Float32
# x2 : FLOAT -> Float32
# y2 : FLOAT -> Float32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GdipDrawLine(
    void* graphics,
    void* pen,
    float x1,
    float y1,
    float x2,
    float y2);
]]
local gdiplus = ffi.load("gdiplus")
-- gdiplus.GdipDrawLine(graphics, pen, x1, y1, x2, y2)
-- graphics : GpGraphics* in/out
-- pen : GpPen* in/out
-- x1 : FLOAT
-- y1 : FLOAT
-- x2 : FLOAT
-- y2 : FLOAT
-- 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('gdiplus.dll');
const GdipDrawLine = lib.func('__stdcall', 'GdipDrawLine', 'int32_t', ['void *', 'void *', 'float', 'float', 'float', 'float']);
// GdipDrawLine(graphics, pen, x1, y1, x2, y2)
// graphics : GpGraphics* in/out -> 'void *'
// pen : GpPen* in/out -> 'void *'
// x1 : FLOAT -> 'float'
// y1 : FLOAT -> 'float'
// x2 : FLOAT -> 'float'
// y2 : FLOAT -> 'float'
// 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("gdiplus.dll", {
  GdipDrawLine: { parameters: ["pointer", "pointer", "f32", "f32", "f32", "f32"], result: "i32" },
});
// lib.symbols.GdipDrawLine(graphics, pen, x1, y1, x2, y2)
// graphics : GpGraphics* in/out -> "pointer"
// pen : GpPen* in/out -> "pointer"
// x1 : FLOAT -> "f32"
// y1 : FLOAT -> "f32"
// x2 : FLOAT -> "f32"
// y2 : FLOAT -> "f32"
// 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 GdipDrawLine(
    void* graphics,
    void* pen,
    float x1,
    float y1,
    float x2,
    float y2);
C, "gdiplus.dll");
// $ffi->GdipDrawLine(graphics, pen, x1, y1, x2, y2);
// graphics : GpGraphics* in/out
// pen : GpPen* in/out
// x1 : FLOAT
// y1 : FLOAT
// x2 : FLOAT
// y2 : FLOAT
// 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 Gdiplus extends StdCallLibrary {
    Gdiplus INSTANCE = Native.load("gdiplus", Gdiplus.class);
    int GdipDrawLine(
        Pointer graphics,   // GpGraphics* in/out
        Pointer pen,   // GpPen* in/out
        float x1,   // FLOAT
        float y1,   // FLOAT
        float x2,   // FLOAT
        float y2   // FLOAT
    );
}

@[Link("gdiplus")]
lib Libgdiplus
  fun GdipDrawLine = GdipDrawLine(
    graphics : GpGraphics*,   # GpGraphics* in/out
    pen : GpPen*,   # GpPen* in/out
    x1 : Float32,   # FLOAT
    y1 : Float32,   # FLOAT
    x2 : Float32,   # FLOAT
    y2 : Float32   # FLOAT
  ) : 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 GdipDrawLineNative = Int32 Function(Pointer<Void>, Pointer<Void>, Float, Float, Float, Float);
typedef GdipDrawLineDart = int Function(Pointer<Void>, Pointer<Void>, double, double, double, double);
final GdipDrawLine = DynamicLibrary.open('gdiplus.dll')
    .lookupFunction<GdipDrawLineNative, GdipDrawLineDart>('GdipDrawLine');
// graphics : GpGraphics* in/out -> Pointer<Void>
// pen : GpPen* in/out -> Pointer<Void>
// x1 : FLOAT -> Float
// y1 : FLOAT -> Float
// x2 : FLOAT -> Float
// y2 : FLOAT -> Float
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GdipDrawLine(
  graphics: Pointer;   // GpGraphics* in/out
  pen: Pointer;   // GpPen* in/out
  x1: Single;   // FLOAT
  y1: Single;   // FLOAT
  x2: Single;   // FLOAT
  y2: Single   // FLOAT
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipDrawLine';

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

foreign import stdcall safe "GdipDrawLine"
  c_GdipDrawLine :: Ptr () -> Ptr () -> CFloat -> CFloat -> CFloat -> CFloat -> IO Int32
-- graphics : GpGraphics* in/out -> Ptr ()
-- pen : GpPen* in/out -> Ptr ()
-- x1 : FLOAT -> CFloat
-- y1 : FLOAT -> CFloat
-- x2 : FLOAT -> CFloat
-- y2 : FLOAT -> CFloat
-- 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 gdipdrawline =
  foreign "GdipDrawLine"
    ((ptr void) @-> (ptr void) @-> float @-> float @-> float @-> float @-> returning int32_t)
(* graphics : GpGraphics* in/out -> (ptr void) *)
(* pen : GpPen* in/out -> (ptr void) *)
(* x1 : FLOAT -> float *)
(* y1 : FLOAT -> float *)
(* x2 : FLOAT -> float *)
(* y2 : FLOAT -> float *)
(* 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 gdiplus (t "gdiplus.dll"))
(cffi:use-foreign-library gdiplus)

(cffi:defcfun ("GdipDrawLine" gdip-draw-line :convention :stdcall) :int32
  (graphics :pointer)   ; GpGraphics* in/out
  (pen :pointer)   ; GpPen* in/out
  (x1 :float)   ; FLOAT
  (y1 :float)   ; FLOAT
  (x2 :float)   ; FLOAT
  (y2 :float))   ; FLOAT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GdipDrawLine = Win32::API::More->new('gdiplus',
    'int GdipDrawLine(LPVOID graphics, LPVOID pen, float x1, float y1, float x2, float y2)');
# my $ret = $GdipDrawLine->Call($graphics, $pen, $x1, $y1, $x2, $y2);
# graphics : GpGraphics* in/out -> LPVOID
# pen : GpPen* in/out -> LPVOID
# x1 : FLOAT -> float
# y1 : FLOAT -> float
# x2 : FLOAT -> float
# y2 : FLOAT -> float
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。