glColor3i

// OPENGL32.dll
#include <windows.h>

void glColor3i(
    INT red,
    INT green,
    INT blue
);

<DllImport("OPENGL32.dll", ExactSpelling:=True)>
Public Shared Sub glColor3i(
    red As Integer,   ' INT
    green As Integer,   ' INT
    blue As Integer   ' INT
)
End Sub

' red : INT
' green : INT
' blue : INT
Declare PtrSafe Sub glColor3i Lib "opengl32" ( _
    ByVal red As Long, _
    ByVal green As Long, _
    ByVal blue As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

glColor3i = ctypes.windll.opengl32.glColor3i
glColor3i.restype = None
glColor3i.argtypes = [
    ctypes.c_int,  # red : INT
    ctypes.c_int,  # green : INT
    ctypes.c_int,  # blue : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OPENGL32.dll')
glColor3i = Fiddle::Function.new(
  lib['glColor3i'],
  [
    Fiddle::TYPE_INT,  # red : INT
    Fiddle::TYPE_INT,  # green : INT
    Fiddle::TYPE_INT,  # blue : INT
  ],
  Fiddle::TYPE_VOID)

#[link(name = "opengl32")]
extern "system" {
    fn glColor3i(
        red: i32,  // INT
        green: i32,  // INT
        blue: i32  // INT
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OPENGL32.dll")]
public static extern void glColor3i(int red, int green, int blue);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OPENGL32_glColor3i' -Namespace Win32 -PassThru
# $api::glColor3i(red, green, blue)

#uselib "OPENGL32.dll"
#func global glColor3i "glColor3i" sptr, sptr, sptr
; glColor3i red, green, blue
; red : INT -> "sptr"
; green : INT -> "sptr"
; blue : INT -> "sptr"

#uselib "OPENGL32.dll"
#func global glColor3i "glColor3i" int, int, int
; glColor3i red, green, blue
; red : INT -> "int"
; green : INT -> "int"
; blue : INT -> "int"

; void glColor3i(INT red, INT green, INT blue)
#uselib "OPENGL32.dll"
#func global glColor3i "glColor3i" int, int, int
; glColor3i red, green, blue
; red : INT -> "int"
; green : INT -> "int"
; blue : INT -> "int"

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

var (
	opengl32 = windows.NewLazySystemDLL("OPENGL32.dll")
	procglColor3i = opengl32.NewProc("glColor3i")
)

// red (INT), green (INT), blue (INT)
r1, _, err := procglColor3i.Call(
	uintptr(red),
	uintptr(green),
	uintptr(blue),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure glColor3i(
  red: Integer;   // INT
  green: Integer;   // INT
  blue: Integer   // INT
); stdcall;
  external 'OPENGL32.dll' name 'glColor3i';

result := DllCall("OPENGL32\glColor3i"
    , "Int", red   ; INT
    , "Int", green   ; INT
    , "Int", blue   ; INT
    , "Int")   ; return: void

●glColor3i(red, green, blue) = DLL("OPENGL32.dll", "int glColor3i(int, int, int)")
# 呼び出し: glColor3i(red, green, blue)
# red : INT -> "int"
# green : INT -> "int"
# blue : INT -> "int"
# 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 "opengl32" fn glColor3i(
    red: i32, // INT
    green: i32, // INT
    blue: i32 // INT
) callconv(std.os.windows.WINAPI) void;

proc glColor3i(
    red: int32,  # INT
    green: int32,  # INT
    blue: int32  # INT
) {.importc: "glColor3i", stdcall, dynlib: "OPENGL32.dll".}

pragma(lib, "opengl32");
extern(Windows)
void glColor3i(
    int red,   // INT
    int green,   // INT
    int blue   // INT
);

ccall((:glColor3i, "OPENGL32.dll"), stdcall, Cvoid,
      (Int32, Int32, Int32),
      red, green, blue)
# red : INT -> Int32
# green : INT -> Int32
# blue : INT -> Int32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void glColor3i(
    int32_t red,
    int32_t green,
    int32_t blue);
]]
local opengl32 = ffi.load("opengl32")
-- opengl32.glColor3i(red, green, blue)
-- red : INT
-- green : INT
-- blue : INT
-- 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('OPENGL32.dll');
const glColor3i = lib.func('__stdcall', 'glColor3i', 'void', ['int32_t', 'int32_t', 'int32_t']);
// glColor3i(red, green, blue)
// red : INT -> 'int32_t'
// green : INT -> 'int32_t'
// blue : INT -> 'int32_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("OPENGL32.dll", {
  glColor3i: { parameters: ["i32", "i32", "i32"], result: "void" },
});
// lib.symbols.glColor3i(red, green, blue)
// red : INT -> "i32"
// green : INT -> "i32"
// blue : INT -> "i32"
// 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
void glColor3i(
    int32_t red,
    int32_t green,
    int32_t blue);
C, "OPENGL32.dll");
// $ffi->glColor3i(red, green, blue);
// red : INT
// green : INT
// blue : INT
// 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 Opengl32 extends StdCallLibrary {
    Opengl32 INSTANCE = Native.load("opengl32", Opengl32.class);
    void glColor3i(
        int red,   // INT
        int green,   // INT
        int blue   // INT
    );
}

@[Link("opengl32")]
lib LibOPENGL32
  fun glColor3i = glColor3i(
    red : Int32,   # INT
    green : Int32,   # INT
    blue : Int32   # INT
  ) : Void
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 glColor3iNative = Void Function(Int32, Int32, Int32);
typedef glColor3iDart = void Function(int, int, int);
final glColor3i = DynamicLibrary.open('OPENGL32.dll')
    .lookupFunction<glColor3iNative, glColor3iDart>('glColor3i');
// red : INT -> Int32
// green : INT -> Int32
// blue : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure glColor3i(
  red: Integer;   // INT
  green: Integer;   // INT
  blue: Integer   // INT
); stdcall;
  external 'OPENGL32.dll' name 'glColor3i';

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

foreign import stdcall safe "glColor3i"
  c_glColor3i :: Int32 -> Int32 -> Int32 -> IO ()
-- red : INT -> Int32
-- green : INT -> Int32
-- blue : INT -> Int32
-- 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 glcolor3i =
  foreign "glColor3i"
    (int32_t @-> int32_t @-> int32_t @-> returning void)
(* red : INT -> int32_t *)
(* green : INT -> int32_t *)
(* blue : INT -> int32_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 opengl32 (t "OPENGL32.dll"))
(cffi:use-foreign-library opengl32)

(cffi:defcfun ("glColor3i" gl-color3i :convention :stdcall) :void
  (red :int32)   ; INT
  (green :int32)   ; INT
  (blue :int32))   ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $glColor3i = Win32::API::More->new('OPENGL32',
    'void glColor3i(int red, int green, int blue)');
# my $ret = $glColor3i->Call($red, $green, $blue);
# red : INT -> int
# green : INT -> int
# blue : INT -> int
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。