gluTessBeginContour

// GLU32.dll
#include <windows.h>

void gluTessBeginContour(
    GLUtesselator* tess
);

<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Sub gluTessBeginContour(
    ByRef tess As IntPtr   ' GLUtesselator* in/out
)
End Sub

' tess : GLUtesselator* in/out
Declare PtrSafe Sub gluTessBeginContour Lib "glu32" ( _
    ByRef tess As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

gluTessBeginContour = ctypes.windll.glu32.gluTessBeginContour
gluTessBeginContour.restype = None
gluTessBeginContour.argtypes = [
    ctypes.c_void_p,  # tess : GLUtesselator* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GLU32.dll')
gluTessBeginContour = Fiddle::Function.new(
  lib['gluTessBeginContour'],
  [
    Fiddle::TYPE_VOIDP,  # tess : GLUtesselator* in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "glu32")]
extern "system" {
    fn gluTessBeginContour(
        tess: *mut isize  // GLUtesselator* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GLU32.dll")]
public static extern void gluTessBeginContour(ref IntPtr tess);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluTessBeginContour' -Namespace Win32 -PassThru
# $api::gluTessBeginContour(tess)

#uselib "GLU32.dll"
#func global gluTessBeginContour "gluTessBeginContour" sptr
; gluTessBeginContour varptr(tess)
; tess : GLUtesselator* in/out -> "sptr"

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

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluTessBeginContour = glu32.NewProc("gluTessBeginContour")
)

// tess (GLUtesselator* in/out)
r1, _, err := procgluTessBeginContour.Call(
	uintptr(tess),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure gluTessBeginContour(
  tess: Pointer   // GLUtesselator* in/out
); stdcall;
  external 'GLU32.dll' name 'gluTessBeginContour';

result := DllCall("GLU32\gluTessBeginContour"
    , "Ptr", tess   ; GLUtesselator* in/out
    , "Int")   ; return: void

●gluTessBeginContour(tess) = DLL("GLU32.dll", "int gluTessBeginContour(void*)")
# 呼び出し: gluTessBeginContour(tess)
# tess : GLUtesselator* 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 "glu32" fn gluTessBeginContour(
    tess: [*c]isize // GLUtesselator* in/out
) callconv(std.os.windows.WINAPI) void;

proc gluTessBeginContour(
    tess: ptr int  # GLUtesselator* in/out
) {.importc: "gluTessBeginContour", stdcall, dynlib: "GLU32.dll".}

pragma(lib, "glu32");
extern(Windows)
void gluTessBeginContour(
    ptrdiff_t* tess   // GLUtesselator* in/out
);

ccall((:gluTessBeginContour, "GLU32.dll"), stdcall, Cvoid,
      (Ptr{Int},),
      tess)
# tess : GLUtesselator* in/out -> Ptr{Int}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
void gluTessBeginContour(
    intptr_t* tess);
]]
local glu32 = ffi.load("glu32")
-- glu32.gluTessBeginContour(tess)
-- tess : GLUtesselator* 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('GLU32.dll');
const gluTessBeginContour = lib.func('__stdcall', 'gluTessBeginContour', 'void', ['intptr_t *']);
// gluTessBeginContour(tess)
// tess : GLUtesselator* in/out -> 'intptr_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("GLU32.dll", {
  gluTessBeginContour: { parameters: ["pointer"], result: "void" },
});
// lib.symbols.gluTessBeginContour(tess)
// tess : GLUtesselator* 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
void gluTessBeginContour(
    intptr_t* tess);
C, "GLU32.dll");
// $ffi->gluTessBeginContour(tess);
// tess : GLUtesselator* 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 Glu32 extends StdCallLibrary {
    Glu32 INSTANCE = Native.load("glu32", Glu32.class);
    void gluTessBeginContour(
        LongByReference tess   // GLUtesselator* in/out
    );
}

@[Link("glu32")]
lib LibGLU32
  fun gluTessBeginContour = gluTessBeginContour(
    tess : LibC::SSizeT*   # GLUtesselator* in/out
  ) : 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 gluTessBeginContourNative = Void Function(Pointer<IntPtr>);
typedef gluTessBeginContourDart = void Function(Pointer<IntPtr>);
final gluTessBeginContour = DynamicLibrary.open('GLU32.dll')
    .lookupFunction<gluTessBeginContourNative, gluTessBeginContourDart>('gluTessBeginContour');
// tess : GLUtesselator* in/out -> Pointer<IntPtr>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
procedure gluTessBeginContour(
  tess: Pointer   // GLUtesselator* in/out
); stdcall;
  external 'GLU32.dll' name 'gluTessBeginContour';

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

foreign import stdcall safe "gluTessBeginContour"
  c_gluTessBeginContour :: Ptr CIntPtr -> IO ()
-- tess : GLUtesselator* in/out -> Ptr CIntPtr
-- 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 glutessbegincontour =
  foreign "gluTessBeginContour"
    ((ptr intptr_t) @-> returning void)
(* tess : GLUtesselator* in/out -> (ptr intptr_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 glu32 (t "GLU32.dll"))
(cffi:use-foreign-library glu32)

(cffi:defcfun ("gluTessBeginContour" glu-tess-begin-contour :convention :stdcall) :void
  (tess :pointer))   ; GLUtesselator* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $gluTessBeginContour = Win32::API::More->new('GLU32',
    'void gluTessBeginContour(LPVOID tess)');
# my $ret = $gluTessBeginContour->Call($tess);
# tess : GLUtesselator* 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。