glGetPointerv

関数

有効な頂点配列のポインタを取得する。

DLLOPENGL32.dll呼出規約winapi

シグネチャ

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

void glGetPointerv(
    DWORD pname,
    void** params
);

パラメーター

名前	型	方向
pname	DWORD	in
params	void**	inout

戻り値の型: void

各言語での呼び出し定義

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

void glGetPointerv(
    DWORD pname,
    void** params
);

[DllImport("OPENGL32.dll", ExactSpelling = true)]
static extern void glGetPointerv(
    uint pname,   // DWORD
    IntPtr params   // void** in/out
);

<DllImport("OPENGL32.dll", ExactSpelling:=True)>
Public Shared Sub glGetPointerv(
    pname As UInteger,   ' DWORD
    params As IntPtr   ' void** in/out
)
End Sub

' pname : DWORD
' params : void** in/out
Declare PtrSafe Sub glGetPointerv Lib "opengl32" ( _
    ByVal pname As Long, _
    ByVal params As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

glGetPointerv = ctypes.windll.opengl32.glGetPointerv
glGetPointerv.restype = None
glGetPointerv.argtypes = [
    wintypes.DWORD,  # pname : DWORD
    ctypes.c_void_p,  # params : void** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OPENGL32.dll')
glGetPointerv = Fiddle::Function.new(
  lib['glGetPointerv'],
  [
    -Fiddle::TYPE_INT,  # pname : DWORD
    Fiddle::TYPE_VOIDP,  # params : void** in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "opengl32")]
extern "system" {
    fn glGetPointerv(
        pname: u32,  // DWORD
        params: *mut *mut ()  // void** in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OPENGL32.dll")]
public static extern void glGetPointerv(uint pname, IntPtr params);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OPENGL32_glGetPointerv' -Namespace Win32 -PassThru
# $api::glGetPointerv(pname, params)

#uselib "OPENGL32.dll"
#func global glGetPointerv "glGetPointerv" sptr, sptr
; glGetPointerv pname, params
; pname : DWORD -> "sptr"
; params : void** in/out -> "sptr"

#uselib "OPENGL32.dll"
#func global glGetPointerv "glGetPointerv" int, sptr
; glGetPointerv pname, params
; pname : DWORD -> "int"
; params : void** in/out -> "sptr"

; void glGetPointerv(DWORD pname, void** params)
#uselib "OPENGL32.dll"
#func global glGetPointerv "glGetPointerv" int, intptr
; glGetPointerv pname, params
; pname : DWORD -> "int"
; params : void** in/out -> "intptr"

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

var (
	opengl32 = windows.NewLazySystemDLL("OPENGL32.dll")
	procglGetPointerv = opengl32.NewProc("glGetPointerv")
)

// pname (DWORD), params (void** in/out)
r1, _, err := procglGetPointerv.Call(
	uintptr(pname),
	uintptr(params),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure glGetPointerv(
  pname: DWORD;   // DWORD
  params: Pointer   // void** in/out
); stdcall;
  external 'OPENGL32.dll' name 'glGetPointerv';

result := DllCall("OPENGL32\glGetPointerv"
    , "UInt", pname   ; DWORD
    , "Ptr", params   ; void** in/out
    , "Int")   ; return: void

●glGetPointerv(pname, params) = DLL("OPENGL32.dll", "int glGetPointerv(dword, void*)")
# 呼び出し: glGetPointerv(pname, params)
# pname : DWORD -> "dword"
# params : void** 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)。