glColor4us

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

void glColor4us(
    WORD red,
    WORD green,
    WORD blue,
    WORD alpha
);

<DllImport("OPENGL32.dll", ExactSpelling:=True)>
Public Shared Sub glColor4us(
    red As UShort,   ' WORD
    green As UShort,   ' WORD
    blue As UShort,   ' WORD
    alpha As UShort   ' WORD
)
End Sub

' red : WORD
' green : WORD
' blue : WORD
' alpha : WORD
Declare PtrSafe Sub glColor4us Lib "opengl32" ( _
    ByVal red As Integer, _
    ByVal green As Integer, _
    ByVal blue As Integer, _
    ByVal alpha As Integer)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

glColor4us = ctypes.windll.opengl32.glColor4us
glColor4us.restype = None
glColor4us.argtypes = [
    ctypes.c_ushort,  # red : WORD
    ctypes.c_ushort,  # green : WORD
    ctypes.c_ushort,  # blue : WORD
    ctypes.c_ushort,  # alpha : WORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OPENGL32.dll')
glColor4us = Fiddle::Function.new(
  lib['glColor4us'],
  [
    -Fiddle::TYPE_SHORT,  # red : WORD
    -Fiddle::TYPE_SHORT,  # green : WORD
    -Fiddle::TYPE_SHORT,  # blue : WORD
    -Fiddle::TYPE_SHORT,  # alpha : WORD
  ],
  Fiddle::TYPE_VOID)

#[link(name = "opengl32")]
extern "system" {
    fn glColor4us(
        red: u16,  // WORD
        green: u16,  // WORD
        blue: u16,  // WORD
        alpha: u16  // WORD
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OPENGL32.dll")]
public static extern void glColor4us(ushort red, ushort green, ushort blue, ushort alpha);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OPENGL32_glColor4us' -Namespace Win32 -PassThru
# $api::glColor4us(red, green, blue, alpha)

#uselib "OPENGL32.dll"
#func global glColor4us "glColor4us" sptr, sptr, sptr, sptr
; glColor4us red, green, blue, alpha
; red : WORD -> "sptr"
; green : WORD -> "sptr"
; blue : WORD -> "sptr"
; alpha : WORD -> "sptr"

#uselib "OPENGL32.dll"
#func global glColor4us "glColor4us" int, int, int, int
; glColor4us red, green, blue, alpha
; red : WORD -> "int"
; green : WORD -> "int"
; blue : WORD -> "int"
; alpha : WORD -> "int"

; void glColor4us(WORD red, WORD green, WORD blue, WORD alpha)
#uselib "OPENGL32.dll"
#func global glColor4us "glColor4us" int, int, int, int
; glColor4us red, green, blue, alpha
; red : WORD -> "int"
; green : WORD -> "int"
; blue : WORD -> "int"
; alpha : WORD -> "int"

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

var (
	opengl32 = windows.NewLazySystemDLL("OPENGL32.dll")
	procglColor4us = opengl32.NewProc("glColor4us")
)

// red (WORD), green (WORD), blue (WORD), alpha (WORD)
r1, _, err := procglColor4us.Call(
	uintptr(red),
	uintptr(green),
	uintptr(blue),
	uintptr(alpha),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure glColor4us(
  red: Word;   // WORD
  green: Word;   // WORD
  blue: Word;   // WORD
  alpha: Word   // WORD
); stdcall;
  external 'OPENGL32.dll' name 'glColor4us';

result := DllCall("OPENGL32\glColor4us"
    , "UShort", red   ; WORD
    , "UShort", green   ; WORD
    , "UShort", blue   ; WORD
    , "UShort", alpha   ; WORD
    , "Int")   ; return: void

●glColor4us(red, green, blue, alpha) = DLL("OPENGL32.dll", "int glColor4us(int, int, int, int)")
# 呼び出し: glColor4us(red, green, blue, alpha)
# red : WORD -> "int"
# green : WORD -> "int"
# blue : WORD -> "int"
# alpha : WORD -> "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 glColor4us(
    red: u16, // WORD
    green: u16, // WORD
    blue: u16, // WORD
    alpha: u16 // WORD
) callconv(std.os.windows.WINAPI) void;

proc glColor4us(
    red: uint16,  # WORD
    green: uint16,  # WORD
    blue: uint16,  # WORD
    alpha: uint16  # WORD
) {.importc: "glColor4us", stdcall, dynlib: "OPENGL32.dll".}

pragma(lib, "opengl32");
extern(Windows)
void glColor4us(
    ushort red,   // WORD
    ushort green,   // WORD
    ushort blue,   // WORD
    ushort alpha   // WORD
);

ccall((:glColor4us, "OPENGL32.dll"), stdcall, Cvoid,
      (UInt16, UInt16, UInt16, UInt16),
      red, green, blue, alpha)
# red : WORD -> UInt16
# green : WORD -> UInt16
# blue : WORD -> UInt16
# alpha : WORD -> UInt16
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void glColor4us(
    uint16_t red,
    uint16_t green,
    uint16_t blue,
    uint16_t alpha);
]]
local opengl32 = ffi.load("opengl32")
-- opengl32.glColor4us(red, green, blue, alpha)
-- red : WORD
-- green : WORD
-- blue : WORD
-- alpha : WORD
-- 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 glColor4us = lib.func('__stdcall', 'glColor4us', 'void', ['uint16_t', 'uint16_t', 'uint16_t', 'uint16_t']);
// glColor4us(red, green, blue, alpha)
// red : WORD -> 'uint16_t'
// green : WORD -> 'uint16_t'
// blue : WORD -> 'uint16_t'
// alpha : WORD -> 'uint16_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", {
  glColor4us: { parameters: ["u16", "u16", "u16", "u16"], result: "void" },
});
// lib.symbols.glColor4us(red, green, blue, alpha)
// red : WORD -> "u16"
// green : WORD -> "u16"
// blue : WORD -> "u16"
// alpha : WORD -> "u16"
// 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 glColor4us(
    uint16_t red,
    uint16_t green,
    uint16_t blue,
    uint16_t alpha);
C, "OPENGL32.dll");
// $ffi->glColor4us(red, green, blue, alpha);
// red : WORD
// green : WORD
// blue : WORD
// alpha : WORD
// 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 glColor4us(
        short red,   // WORD
        short green,   // WORD
        short blue,   // WORD
        short alpha   // WORD
    );
}

@[Link("opengl32")]
lib LibOPENGL32
  fun glColor4us = glColor4us(
    red : UInt16,   # WORD
    green : UInt16,   # WORD
    blue : UInt16,   # WORD
    alpha : UInt16   # WORD
  ) : 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 glColor4usNative = Void Function(Uint16, Uint16, Uint16, Uint16);
typedef glColor4usDart = void Function(int, int, int, int);
final glColor4us = DynamicLibrary.open('OPENGL32.dll')
    .lookupFunction<glColor4usNative, glColor4usDart>('glColor4us');
// red : WORD -> Uint16
// green : WORD -> Uint16
// blue : WORD -> Uint16
// alpha : WORD -> Uint16
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure glColor4us(
  red: Word;   // WORD
  green: Word;   // WORD
  blue: Word;   // WORD
  alpha: Word   // WORD
); stdcall;
  external 'OPENGL32.dll' name 'glColor4us';

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

foreign import stdcall safe "glColor4us"
  c_glColor4us :: Word16 -> Word16 -> Word16 -> Word16 -> IO ()
-- red : WORD -> Word16
-- green : WORD -> Word16
-- blue : WORD -> Word16
-- alpha : WORD -> Word16
-- 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 glcolor4us =
  foreign "glColor4us"
    (uint16_t @-> uint16_t @-> uint16_t @-> uint16_t @-> returning void)
(* red : WORD -> uint16_t *)
(* green : WORD -> uint16_t *)
(* blue : WORD -> uint16_t *)
(* alpha : WORD -> uint16_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 ("glColor4us" gl-color4us :convention :stdcall) :void
  (red :uint16)   ; WORD
  (green :uint16)   ; WORD
  (blue :uint16)   ; WORD
  (alpha :uint16))   ; WORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $glColor4us = Win32::API::More->new('OPENGL32',
    'void glColor4us(WORD red, WORD green, WORD blue, WORD alpha)');
# my $ret = $glColor4us->Call($red, $green, $blue, $alpha);
# red : WORD -> WORD
# green : WORD -> WORD
# blue : WORD -> WORD
# alpha : WORD -> WORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。