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wglSwapMultipleBuffers

関数

複数のOpenGLレンダリングコンテキストのバッファを一括交換する。

DLLOPENGL32.dll呼出規約winapi

シグネチャ

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

DWORD wglSwapMultipleBuffers(
    DWORD param0,
    const WGLSWAP* param1
);

パラメーター

名前	型	方向
param0	DWORD	in
param1	WGLSWAP*	in

戻り値の型: DWORD

各言語での呼び出し定義

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

DWORD wglSwapMultipleBuffers(
    DWORD param0,
    const WGLSWAP* param1
);

[DllImport("OPENGL32.dll", ExactSpelling = true)]
static extern uint wglSwapMultipleBuffers(
    uint param0,   // DWORD
    IntPtr param1   // WGLSWAP*
);

<DllImport("OPENGL32.dll", ExactSpelling:=True)>
Public Shared Function wglSwapMultipleBuffers(
    param0 As UInteger,   ' DWORD
    param1 As IntPtr   ' WGLSWAP*
) As UInteger
End Function

' param0 : DWORD
' param1 : WGLSWAP*
Declare PtrSafe Function wglSwapMultipleBuffers Lib "opengl32" ( _
    ByVal param0 As Long, _
    ByVal param1 As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

wglSwapMultipleBuffers = ctypes.windll.opengl32.wglSwapMultipleBuffers
wglSwapMultipleBuffers.restype = wintypes.DWORD
wglSwapMultipleBuffers.argtypes = [
    wintypes.DWORD,  # param0 : DWORD
    ctypes.c_void_p,  # param1 : WGLSWAP*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OPENGL32.dll')
wglSwapMultipleBuffers = Fiddle::Function.new(
  lib['wglSwapMultipleBuffers'],
  [
    -Fiddle::TYPE_INT,  # param0 : DWORD
    Fiddle::TYPE_VOIDP,  # param1 : WGLSWAP*
  ],
  -Fiddle::TYPE_INT)

#[link(name = "opengl32")]
extern "system" {
    fn wglSwapMultipleBuffers(
        param0: u32,  // DWORD
        param1: *const WGLSWAP  // WGLSWAP*
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OPENGL32.dll")]
public static extern uint wglSwapMultipleBuffers(uint param0, IntPtr param1);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OPENGL32_wglSwapMultipleBuffers' -Namespace Win32 -PassThru
# $api::wglSwapMultipleBuffers(param0, param1)

#uselib "OPENGL32.dll"
#func global wglSwapMultipleBuffers "wglSwapMultipleBuffers" sptr, sptr
; wglSwapMultipleBuffers param0, varptr(param1)   ; 戻り値は stat
; param0 : DWORD -> "sptr"
; param1 : WGLSWAP* -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "OPENGL32.dll"
#cfunc global wglSwapMultipleBuffers "wglSwapMultipleBuffers" int, var
; res = wglSwapMultipleBuffers(param0, param1)
; param0 : DWORD -> "int"
; param1 : WGLSWAP* -> "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"
#cfunc global wglSwapMultipleBuffers "wglSwapMultipleBuffers" int, sptr
; res = wglSwapMultipleBuffers(param0, varptr(param1))
; param0 : DWORD -> "int"
; param1 : WGLSWAP* -> "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:

; DWORD wglSwapMultipleBuffers(DWORD param0, WGLSWAP* param1)
#uselib "OPENGL32.dll"
#cfunc global wglSwapMultipleBuffers "wglSwapMultipleBuffers" int, var
; res = wglSwapMultipleBuffers(param0, param1)
; param0 : DWORD -> "int"
; param1 : WGLSWAP* -> "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。; DWORD wglSwapMultipleBuffers(DWORD param0, WGLSWAP* param1)
#uselib "OPENGL32.dll"
#cfunc global wglSwapMultipleBuffers "wglSwapMultipleBuffers" int, intptr
; res = wglSwapMultipleBuffers(param0, varptr(param1))
; param0 : DWORD -> "int"
; param1 : WGLSWAP* -> "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")
	procwglSwapMultipleBuffers = opengl32.NewProc("wglSwapMultipleBuffers")
)

// param0 (DWORD), param1 (WGLSWAP*)
r1, _, err := procwglSwapMultipleBuffers.Call(
	uintptr(param0),
	uintptr(param1),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function wglSwapMultipleBuffers(
  param0: DWORD;   // DWORD
  param1: Pointer   // WGLSWAP*
): DWORD; stdcall;
  external 'OPENGL32.dll' name 'wglSwapMultipleBuffers';

result := DllCall("OPENGL32\wglSwapMultipleBuffers"
    , "UInt", param0   ; DWORD
    , "Ptr", param1   ; WGLSWAP*
    , "UInt")   ; return: DWORD

●wglSwapMultipleBuffers(param0, param1) = DLL("OPENGL32.dll", "dword wglSwapMultipleBuffers(dword, void*)")
# 呼び出し: wglSwapMultipleBuffers(param0, param1)
# param0 : DWORD -> "dword"
# param1 : WGLSWAP* -> "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)。