gluNurbsCurve

関数

ノットと制御点からNURBS曲線を定義する。

DLLGLU32.dll呼出規約winapi

シグネチャ

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

void gluNurbsCurve(
    GLUnurbs* nobj,
    INT nknots,
    FLOAT* knot,
    INT stride,
    FLOAT* ctlarray,
    INT order,
    DWORD type
);

パラメーター

名前	型	方向
nobj	GLUnurbs*	inout
nknots	INT	in
knot	FLOAT*	inout
stride	INT	in
ctlarray	FLOAT*	inout
order	INT	in
type	DWORD	in

戻り値の型: void

各言語での呼び出し定義

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

void gluNurbsCurve(
    GLUnurbs* nobj,
    INT nknots,
    FLOAT* knot,
    INT stride,
    FLOAT* ctlarray,
    INT order,
    DWORD type
);

[DllImport("GLU32.dll", ExactSpelling = true)]
static extern void gluNurbsCurve(
    ref IntPtr nobj,   // GLUnurbs* in/out
    int nknots,   // INT
    ref float knot,   // FLOAT* in/out
    int stride,   // INT
    ref float ctlarray,   // FLOAT* in/out
    int order,   // INT
    uint type   // DWORD
);

<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Sub gluNurbsCurve(
    ByRef nobj As IntPtr,   ' GLUnurbs* in/out
    nknots As Integer,   ' INT
    ByRef knot As Single,   ' FLOAT* in/out
    stride As Integer,   ' INT
    ByRef ctlarray As Single,   ' FLOAT* in/out
    order As Integer,   ' INT
    type As UInteger   ' DWORD
)
End Sub

' nobj : GLUnurbs* in/out
' nknots : INT
' knot : FLOAT* in/out
' stride : INT
' ctlarray : FLOAT* in/out
' order : INT
' type : DWORD
Declare PtrSafe Sub gluNurbsCurve Lib "glu32" ( _
    ByRef nobj As LongPtr, _
    ByVal nknots As Long, _
    ByRef knot As Single, _
    ByVal stride As Long, _
    ByRef ctlarray As Single, _
    ByVal order As Long, _
    ByVal type As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

gluNurbsCurve = ctypes.windll.glu32.gluNurbsCurve
gluNurbsCurve.restype = None
gluNurbsCurve.argtypes = [
    ctypes.c_void_p,  # nobj : GLUnurbs* in/out
    ctypes.c_int,  # nknots : INT
    ctypes.POINTER(ctypes.c_float),  # knot : FLOAT* in/out
    ctypes.c_int,  # stride : INT
    ctypes.POINTER(ctypes.c_float),  # ctlarray : FLOAT* in/out
    ctypes.c_int,  # order : INT
    wintypes.DWORD,  # type : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GLU32.dll')
gluNurbsCurve = Fiddle::Function.new(
  lib['gluNurbsCurve'],
  [
    Fiddle::TYPE_VOIDP,  # nobj : GLUnurbs* in/out
    Fiddle::TYPE_INT,  # nknots : INT
    Fiddle::TYPE_VOIDP,  # knot : FLOAT* in/out
    Fiddle::TYPE_INT,  # stride : INT
    Fiddle::TYPE_VOIDP,  # ctlarray : FLOAT* in/out
    Fiddle::TYPE_INT,  # order : INT
    -Fiddle::TYPE_INT,  # type : DWORD
  ],
  Fiddle::TYPE_VOID)

#[link(name = "glu32")]
extern "system" {
    fn gluNurbsCurve(
        nobj: *mut isize,  // GLUnurbs* in/out
        nknots: i32,  // INT
        knot: *mut f32,  // FLOAT* in/out
        stride: i32,  // INT
        ctlarray: *mut f32,  // FLOAT* in/out
        order: i32,  // INT
        type: u32  // DWORD
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GLU32.dll")]
public static extern void gluNurbsCurve(ref IntPtr nobj, int nknots, ref float knot, int stride, ref float ctlarray, int order, uint type);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluNurbsCurve' -Namespace Win32 -PassThru
# $api::gluNurbsCurve(nobj, nknots, knot, stride, ctlarray, order, type)

#uselib "GLU32.dll"
#func global gluNurbsCurve "gluNurbsCurve" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; gluNurbsCurve nobj, nknots, varptr(knot), stride, varptr(ctlarray), order, type
; nobj : GLUnurbs* in/out -> "sptr"
; nknots : INT -> "sptr"
; knot : FLOAT* in/out -> "sptr"
; stride : INT -> "sptr"
; ctlarray : FLOAT* in/out -> "sptr"
; order : INT -> "sptr"
; type : DWORD -> "sptr"

出力引数:

#uselib "GLU32.dll"
#func global gluNurbsCurve "gluNurbsCurve" int, int, var, int, var, int, int
; gluNurbsCurve nobj, nknots, knot, stride, ctlarray, order, type
; nobj : GLUnurbs* in/out -> "int"
; nknots : INT -> "int"
; knot : FLOAT* in/out -> "var"
; stride : INT -> "int"
; ctlarray : FLOAT* in/out -> "var"
; order : INT -> "int"
; type : DWORD -> "int"
; ※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 gluNurbsCurve "gluNurbsCurve" int, int, sptr, int, sptr, int, int
; gluNurbsCurve nobj, nknots, varptr(knot), stride, varptr(ctlarray), order, type
; nobj : GLUnurbs* in/out -> "int"
; nknots : INT -> "int"
; knot : FLOAT* in/out -> "sptr"
; stride : INT -> "int"
; ctlarray : FLOAT* in/out -> "sptr"
; order : INT -> "int"
; type : DWORD -> "int"
; ※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 gluNurbsCurve(GLUnurbs* nobj, INT nknots, FLOAT* knot, INT stride, FLOAT* ctlarray, INT order, DWORD type)
#uselib "GLU32.dll"
#func global gluNurbsCurve "gluNurbsCurve" int, int, var, int, var, int, int
; gluNurbsCurve nobj, nknots, knot, stride, ctlarray, order, type
; nobj : GLUnurbs* in/out -> "int"
; nknots : INT -> "int"
; knot : FLOAT* in/out -> "var"
; stride : INT -> "int"
; ctlarray : FLOAT* in/out -> "var"
; order : INT -> "int"
; type : DWORD -> "int"
; ※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 gluNurbsCurve(GLUnurbs* nobj, INT nknots, FLOAT* knot, INT stride, FLOAT* ctlarray, INT order, DWORD type)
#uselib "GLU32.dll"
#func global gluNurbsCurve "gluNurbsCurve" int, int, intptr, int, intptr, int, int
; gluNurbsCurve nobj, nknots, varptr(knot), stride, varptr(ctlarray), order, type
; nobj : GLUnurbs* in/out -> "int"
; nknots : INT -> "int"
; knot : FLOAT* in/out -> "intptr"
; stride : INT -> "int"
; ctlarray : FLOAT* in/out -> "intptr"
; order : INT -> "int"
; type : DWORD -> "int"
; ※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 (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluNurbsCurve = glu32.NewProc("gluNurbsCurve")
)

// nobj (GLUnurbs* in/out), nknots (INT), knot (FLOAT* in/out), stride (INT), ctlarray (FLOAT* in/out), order (INT), type (DWORD)
r1, _, err := procgluNurbsCurve.Call(
	uintptr(nobj),
	uintptr(nknots),
	uintptr(knot),
	uintptr(stride),
	uintptr(ctlarray),
	uintptr(order),
	uintptr(type),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure gluNurbsCurve(
  nobj: Pointer;   // GLUnurbs* in/out
  nknots: Integer;   // INT
  knot: Pointer;   // FLOAT* in/out
  stride: Integer;   // INT
  ctlarray: Pointer;   // FLOAT* in/out
  order: Integer;   // INT
  type: DWORD   // DWORD
); stdcall;
  external 'GLU32.dll' name 'gluNurbsCurve';

result := DllCall("GLU32\gluNurbsCurve"
    , "Ptr", nobj   ; GLUnurbs* in/out
    , "Int", nknots   ; INT
    , "Ptr", knot   ; FLOAT* in/out
    , "Int", stride   ; INT
    , "Ptr", ctlarray   ; FLOAT* in/out
    , "Int", order   ; INT
    , "UInt", type   ; DWORD
    , "Int")   ; return: void

●gluNurbsCurve(nobj, nknots, knot, stride, ctlarray, order, type) = DLL("GLU32.dll", "int gluNurbsCurve(void*, int, void*, int, void*, int, dword)")
# 呼び出し: gluNurbsCurve(nobj, nknots, knot, stride, ctlarray, order, type)
# nobj : GLUnurbs* in/out -> "void*"
# nknots : INT -> "int"
# knot : FLOAT* in/out -> "void*"
# stride : INT -> "int"
# ctlarray : FLOAT* in/out -> "void*"
# order : INT -> "int"
# type : DWORD -> "dword"
# 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)。