glGetIntegerv

関数

指定状態変数の値を整数で取得する。

DLLOPENGL32.dll呼出規約winapi

シグネチャ

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

void glGetIntegerv(
    DWORD pname,
    INT* params
);

パラメーター

名前	型	方向
pname	DWORD	in
params	INT*	inout

戻り値の型: void

各言語での呼び出し定義

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

void glGetIntegerv(
    DWORD pname,
    INT* params
);

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

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

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

import ctypes
from ctypes import wintypes

glGetIntegerv = ctypes.windll.opengl32.glGetIntegerv
glGetIntegerv.restype = None
glGetIntegerv.argtypes = [
    wintypes.DWORD,  # pname : DWORD
    ctypes.POINTER(ctypes.c_int),  # params : INT* in/out
]

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "opengl32")]
extern "system" {
    fn glGetIntegerv(
        pname: u32,  // DWORD
        params: *mut i32  // INT* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OPENGL32.dll")]
public static extern void glGetIntegerv(uint pname, ref int params);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OPENGL32_glGetIntegerv' -Namespace Win32 -PassThru
# $api::glGetIntegerv(pname, params)

#uselib "OPENGL32.dll"
#func global glGetIntegerv "glGetIntegerv" sptr, sptr
; glGetIntegerv pname, varptr(params)
; pname : DWORD -> "sptr"
; params : INT* in/out -> "sptr"

出力引数:

#uselib "OPENGL32.dll"
#func global glGetIntegerv "glGetIntegerv" int, var
; glGetIntegerv pname, params
; pname : DWORD -> "int"
; params : 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 "OPENGL32.dll"
#func global glGetIntegerv "glGetIntegerv" int, sptr
; glGetIntegerv pname, varptr(params)
; pname : DWORD -> "int"
; params : 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 glGetIntegerv(DWORD pname, INT* params)
#uselib "OPENGL32.dll"
#func global glGetIntegerv "glGetIntegerv" int, var
; glGetIntegerv pname, params
; pname : DWORD -> "int"
; params : 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 glGetIntegerv(DWORD pname, INT* params)
#uselib "OPENGL32.dll"
#func global glGetIntegerv "glGetIntegerv" int, intptr
; glGetIntegerv pname, varptr(params)
; pname : DWORD -> "int"
; params : 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 (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	opengl32 = windows.NewLazySystemDLL("OPENGL32.dll")
	procglGetIntegerv = opengl32.NewProc("glGetIntegerv")
)

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

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

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

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