gluPickMatrix

関数

ピッキング用に指定領域に限定する投影行列を設定する。

DLLGLU32.dll呼出規約winapi

シグネチャ

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

void gluPickMatrix(
    DOUBLE x,
    DOUBLE y,
    DOUBLE width,
    DOUBLE height,
    INT* viewport
);

パラメーター

名前	型	方向
x	DOUBLE	in
y	DOUBLE	in
width	DOUBLE	in
height	DOUBLE	in
viewport	INT*	inout

戻り値の型: void

各言語での呼び出し定義

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

void gluPickMatrix(
    DOUBLE x,
    DOUBLE y,
    DOUBLE width,
    DOUBLE height,
    INT* viewport
);

[DllImport("GLU32.dll", ExactSpelling = true)]
static extern void gluPickMatrix(
    double x,   // DOUBLE
    double y,   // DOUBLE
    double width,   // DOUBLE
    double height,   // DOUBLE
    ref int viewport   // INT* in/out
);

<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Sub gluPickMatrix(
    x As Double,   ' DOUBLE
    y As Double,   ' DOUBLE
    width As Double,   ' DOUBLE
    height As Double,   ' DOUBLE
    ByRef viewport As Integer   ' INT* in/out
)
End Sub

' x : DOUBLE
' y : DOUBLE
' width : DOUBLE
' height : DOUBLE
' viewport : INT* in/out
Declare PtrSafe Sub gluPickMatrix Lib "glu32" ( _
    ByVal x As Double, _
    ByVal y As Double, _
    ByVal width As Double, _
    ByVal height As Double, _
    ByRef viewport As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

gluPickMatrix = ctypes.windll.glu32.gluPickMatrix
gluPickMatrix.restype = None
gluPickMatrix.argtypes = [
    ctypes.c_double,  # x : DOUBLE
    ctypes.c_double,  # y : DOUBLE
    ctypes.c_double,  # width : DOUBLE
    ctypes.c_double,  # height : DOUBLE
    ctypes.POINTER(ctypes.c_int),  # viewport : INT* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GLU32.dll')
gluPickMatrix = Fiddle::Function.new(
  lib['gluPickMatrix'],
  [
    Fiddle::TYPE_DOUBLE,  # x : DOUBLE
    Fiddle::TYPE_DOUBLE,  # y : DOUBLE
    Fiddle::TYPE_DOUBLE,  # width : DOUBLE
    Fiddle::TYPE_DOUBLE,  # height : DOUBLE
    Fiddle::TYPE_VOIDP,  # viewport : INT* in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "glu32")]
extern "system" {
    fn gluPickMatrix(
        x: f64,  // DOUBLE
        y: f64,  // DOUBLE
        width: f64,  // DOUBLE
        height: f64,  // DOUBLE
        viewport: *mut i32  // INT* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GLU32.dll")]
public static extern void gluPickMatrix(double x, double y, double width, double height, ref int viewport);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluPickMatrix' -Namespace Win32 -PassThru
# $api::gluPickMatrix(x, y, width, height, viewport)

#uselib "GLU32.dll"
#func global gluPickMatrix "gluPickMatrix" double, double, double, double, sptr
; gluPickMatrix x, y, width, height, varptr(viewport)
; x : DOUBLE -> "double"
; y : DOUBLE -> "double"
; width : DOUBLE -> "double"
; height : DOUBLE -> "double"
; viewport : INT* in/out -> "sptr"

出力引数:

#uselib "GLU32.dll"
#func global gluPickMatrix "gluPickMatrix" double, double, double, double, var
; gluPickMatrix x, y, width, height, viewport
; x : DOUBLE -> "double"
; y : DOUBLE -> "double"
; width : DOUBLE -> "double"
; height : DOUBLE -> "double"
; viewport : INT* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "GLU32.dll"
#func global gluPickMatrix "gluPickMatrix" double, double, double, double, sptr
; gluPickMatrix x, y, width, height, varptr(viewport)
; x : DOUBLE -> "double"
; y : DOUBLE -> "double"
; width : DOUBLE -> "double"
; height : DOUBLE -> "double"
; viewport : INT* in/out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; void gluPickMatrix(DOUBLE x, DOUBLE y, DOUBLE width, DOUBLE height, INT* viewport)
#uselib "GLU32.dll"
#func global gluPickMatrix "gluPickMatrix" double, double, double, double, var
; gluPickMatrix x, y, width, height, viewport
; x : DOUBLE -> "double"
; y : DOUBLE -> "double"
; width : DOUBLE -> "double"
; height : DOUBLE -> "double"
; viewport : INT* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; void gluPickMatrix(DOUBLE x, DOUBLE y, DOUBLE width, DOUBLE height, INT* viewport)
#uselib "GLU32.dll"
#func global gluPickMatrix "gluPickMatrix" double, double, double, double, intptr
; gluPickMatrix x, y, width, height, varptr(viewport)
; x : DOUBLE -> "double"
; y : DOUBLE -> "double"
; width : DOUBLE -> "double"
; height : DOUBLE -> "double"
; viewport : INT* in/out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

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

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluPickMatrix = glu32.NewProc("gluPickMatrix")
)

// x (DOUBLE), y (DOUBLE), width (DOUBLE), height (DOUBLE), viewport (INT* in/out)
r1, _, err := procgluPickMatrix.Call(
	uintptr(math.Float64bits(x)),
	uintptr(math.Float64bits(y)),
	uintptr(math.Float64bits(width)),
	uintptr(math.Float64bits(height)),
	uintptr(viewport),
)
_ = 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 gluPickMatrix(
  x: Double;   // DOUBLE
  y: Double;   // DOUBLE
  width: Double;   // DOUBLE
  height: Double;   // DOUBLE
  viewport: Pointer   // INT* in/out
); stdcall;
  external 'GLU32.dll' name 'gluPickMatrix';

result := DllCall("GLU32\gluPickMatrix"
    , "Double", x   ; DOUBLE
    , "Double", y   ; DOUBLE
    , "Double", width   ; DOUBLE
    , "Double", height   ; DOUBLE
    , "Ptr", viewport   ; INT* in/out
    , "Int")   ; return: void

●gluPickMatrix(x, y, width, height, viewport) = DLL("GLU32.dll", "int gluPickMatrix(double, double, double, double, void*)")
# 呼び出し: gluPickMatrix(x, y, width, height, viewport)
# x : DOUBLE -> "double"
# y : DOUBLE -> "double"
# width : DOUBLE -> "double"
# height : DOUBLE -> "double"
# viewport : INT* 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)。