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ホームGraphics.OpenGL › gluOrtho2D

gluOrtho2D

関数
2次元の正射影変換行列を設定する。
DLLGLU32.dll呼出規約winapi

シグネチャ

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

void gluOrtho2D(
    DOUBLE left,
    DOUBLE right,
    DOUBLE bottom,
    DOUBLE top
);

パラメーター

名前方向説明
leftDOUBLEin正射影クリッピング領域の左端の座標。
rightDOUBLEin正射影クリッピング領域の右端の座標。
bottomDOUBLEin正射影クリッピング領域の下端の座標。
topDOUBLEin正射影クリッピング領域の上端の座標。

戻り値の型: void

各言語での呼び出し定義

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

void gluOrtho2D(
    DOUBLE left,
    DOUBLE right,
    DOUBLE bottom,
    DOUBLE top
);
[DllImport("GLU32.dll", ExactSpelling = true)]
static extern void gluOrtho2D(
    double left,   // DOUBLE
    double right,   // DOUBLE
    double bottom,   // DOUBLE
    double top   // DOUBLE
);
<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Sub gluOrtho2D(
    left As Double,   ' DOUBLE
    right As Double,   ' DOUBLE
    bottom As Double,   ' DOUBLE
    top As Double   ' DOUBLE
)
End Sub
' left : DOUBLE
' right : DOUBLE
' bottom : DOUBLE
' top : DOUBLE
Declare PtrSafe Sub gluOrtho2D Lib "glu32" ( _
    ByVal left As Double, _
    ByVal right As Double, _
    ByVal bottom As Double, _
    ByVal top As Double)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

gluOrtho2D = ctypes.windll.glu32.gluOrtho2D
gluOrtho2D.restype = None
gluOrtho2D.argtypes = [
    ctypes.c_double,  # left : DOUBLE
    ctypes.c_double,  # right : DOUBLE
    ctypes.c_double,  # bottom : DOUBLE
    ctypes.c_double,  # top : DOUBLE
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GLU32.dll')
gluOrtho2D = Fiddle::Function.new(
  lib['gluOrtho2D'],
  [
    Fiddle::TYPE_DOUBLE,  # left : DOUBLE
    Fiddle::TYPE_DOUBLE,  # right : DOUBLE
    Fiddle::TYPE_DOUBLE,  # bottom : DOUBLE
    Fiddle::TYPE_DOUBLE,  # top : DOUBLE
  ],
  Fiddle::TYPE_VOID)
#[link(name = "glu32")]
extern "system" {
    fn gluOrtho2D(
        left: f64,  // DOUBLE
        right: f64,  // DOUBLE
        bottom: f64,  // DOUBLE
        top: f64  // DOUBLE
    );
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("GLU32.dll")]
public static extern void gluOrtho2D(double left, double right, double bottom, double top);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluOrtho2D' -Namespace Win32 -PassThru
# $api::gluOrtho2D(left, right, bottom, top)
#uselib "GLU32.dll"
#func global gluOrtho2D "gluOrtho2D" double, double, double, double
; gluOrtho2D left, right, bottom, top
; left : DOUBLE -> "double"
; right : DOUBLE -> "double"
; bottom : DOUBLE -> "double"
; top : DOUBLE -> "double"
#uselib "GLU32.dll"
#func global gluOrtho2D "gluOrtho2D" double, double, double, double
; gluOrtho2D left, right, bottom, top
; left : DOUBLE -> "double"
; right : DOUBLE -> "double"
; bottom : DOUBLE -> "double"
; top : DOUBLE -> "double"
; void gluOrtho2D(DOUBLE left, DOUBLE right, DOUBLE bottom, DOUBLE top)
#uselib "GLU32.dll"
#func global gluOrtho2D "gluOrtho2D" double, double, double, double
; gluOrtho2D left, right, bottom, top
; left : DOUBLE -> "double"
; right : DOUBLE -> "double"
; bottom : DOUBLE -> "double"
; top : DOUBLE -> "double"
import (
	"math"
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluOrtho2D = glu32.NewProc("gluOrtho2D")
)

// left (DOUBLE), right (DOUBLE), bottom (DOUBLE), top (DOUBLE)
r1, _, err := procgluOrtho2D.Call(
	uintptr(math.Float64bits(left)),
	uintptr(math.Float64bits(right)),
	uintptr(math.Float64bits(bottom)),
	uintptr(math.Float64bits(top)),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void
// 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。
procedure gluOrtho2D(
  left: Double;   // DOUBLE
  right: Double;   // DOUBLE
  bottom: Double;   // DOUBLE
  top: Double   // DOUBLE
); stdcall;
  external 'GLU32.dll' name 'gluOrtho2D';
result := DllCall("GLU32\gluOrtho2D"
    , "Double", left   ; DOUBLE
    , "Double", right   ; DOUBLE
    , "Double", bottom   ; DOUBLE
    , "Double", top   ; DOUBLE
    , "Int")   ; return: void
●gluOrtho2D(left, right, bottom, top) = DLL("GLU32.dll", "int gluOrtho2D(double, double, double, double)")
# 呼び出し: gluOrtho2D(left, right, bottom, top)
# left : DOUBLE -> "double"
# right : DOUBLE -> "double"
# bottom : DOUBLE -> "double"
# top : DOUBLE -> "double"
# 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 gluOrtho2D(
    left: f64, // DOUBLE
    right: f64, // DOUBLE
    bottom: f64, // DOUBLE
    top: f64 // DOUBLE
) callconv(std.os.windows.WINAPI) void;
proc gluOrtho2D(
    left: float64,  # DOUBLE
    right: float64,  # DOUBLE
    bottom: float64,  # DOUBLE
    top: float64  # DOUBLE
) {.importc: "gluOrtho2D", stdcall, dynlib: "GLU32.dll".}
pragma(lib, "glu32");
extern(Windows)
void gluOrtho2D(
    double left,   // DOUBLE
    double right,   // DOUBLE
    double bottom,   // DOUBLE
    double top   // DOUBLE
);
ccall((:gluOrtho2D, "GLU32.dll"), stdcall, Cvoid,
      (Float64, Float64, Float64, Float64),
      left, right, bottom, top)
# left : DOUBLE -> Float64
# right : DOUBLE -> Float64
# bottom : DOUBLE -> Float64
# top : DOUBLE -> Float64
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
void gluOrtho2D(
    double left,
    double right,
    double bottom,
    double top);
]]
local glu32 = ffi.load("glu32")
-- glu32.gluOrtho2D(left, right, bottom, top)
-- left : DOUBLE
-- right : DOUBLE
-- bottom : DOUBLE
-- top : DOUBLE
-- 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 gluOrtho2D = lib.func('__stdcall', 'gluOrtho2D', 'void', ['double', 'double', 'double', 'double']);
// gluOrtho2D(left, right, bottom, top)
// left : DOUBLE -> 'double'
// right : DOUBLE -> 'double'
// bottom : DOUBLE -> 'double'
// top : DOUBLE -> 'double'
// 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", {
  gluOrtho2D: { parameters: ["f64", "f64", "f64", "f64"], result: "void" },
});
// lib.symbols.gluOrtho2D(left, right, bottom, top)
// left : DOUBLE -> "f64"
// right : DOUBLE -> "f64"
// bottom : DOUBLE -> "f64"
// top : DOUBLE -> "f64"
// 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 gluOrtho2D(
    double left,
    double right,
    double bottom,
    double top);
C, "GLU32.dll");
// $ffi->gluOrtho2D(left, right, bottom, top);
// left : DOUBLE
// right : DOUBLE
// bottom : DOUBLE
// top : DOUBLE
// 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 gluOrtho2D(
        double left,   // DOUBLE
        double right,   // DOUBLE
        double bottom,   // DOUBLE
        double top   // DOUBLE
    );
}
@[Link("glu32")]
lib LibGLU32
  fun gluOrtho2D = gluOrtho2D(
    left : Float64,   # DOUBLE
    right : Float64,   # DOUBLE
    bottom : Float64,   # DOUBLE
    top : Float64   # DOUBLE
  ) : 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 gluOrtho2DNative = Void Function(Double, Double, Double, Double);
typedef gluOrtho2DDart = void Function(double, double, double, double);
final gluOrtho2D = DynamicLibrary.open('GLU32.dll')
    .lookupFunction<gluOrtho2DNative, gluOrtho2DDart>('gluOrtho2D');
// left : DOUBLE -> Double
// right : DOUBLE -> Double
// bottom : DOUBLE -> Double
// top : DOUBLE -> Double
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
procedure gluOrtho2D(
  left: Double;   // DOUBLE
  right: Double;   // DOUBLE
  bottom: Double;   // DOUBLE
  top: Double   // DOUBLE
); stdcall;
  external 'GLU32.dll' name 'gluOrtho2D';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "gluOrtho2D"
  c_gluOrtho2D :: CDouble -> CDouble -> CDouble -> CDouble -> IO ()
-- left : DOUBLE -> CDouble
-- right : DOUBLE -> CDouble
-- bottom : DOUBLE -> CDouble
-- top : DOUBLE -> CDouble
-- 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 gluortho2d =
  foreign "gluOrtho2D"
    (double @-> double @-> double @-> double @-> returning void)
(* left : DOUBLE -> double *)
(* right : DOUBLE -> double *)
(* bottom : DOUBLE -> double *)
(* top : DOUBLE -> double *)
(* 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 ("gluOrtho2D" glu-ortho2-d :convention :stdcall) :void
  (left :double)   ; DOUBLE
  (right :double)   ; DOUBLE
  (bottom :double)   ; DOUBLE
  (top :double))   ; DOUBLE
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $gluOrtho2D = Win32::API::More->new('GLU32',
    'void gluOrtho2D(double left, double right, double bottom, double top)');
# my $ret = $gluOrtho2D->Call($left, $right, $bottom, $top);
# left : DOUBLE -> double
# right : DOUBLE -> double
# bottom : DOUBLE -> double
# top : DOUBLE -> double
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。