ホーム › Graphics.OpenGL › glGetPixelMapuiv

glGetPixelMapuiv

関数

ピクセル転送用の符号なし整数マッピングを取得する。

DLLOPENGL32.dll呼出規約winapi

シグネチャ

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

void glGetPixelMapuiv(
    DWORD map,
    DWORD* values
);

パラメーター

名前	型	方向
map	DWORD	in
values	DWORD*	inout

戻り値の型: void

各言語での呼び出し定義

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

void glGetPixelMapuiv(
    DWORD map,
    DWORD* values
);

[DllImport("OPENGL32.dll", ExactSpelling = true)]
static extern void glGetPixelMapuiv(
    uint map,   // DWORD
    ref uint values   // DWORD* in/out
);

<DllImport("OPENGL32.dll", ExactSpelling:=True)>
Public Shared Sub glGetPixelMapuiv(
    map As UInteger,   ' DWORD
    ByRef values As UInteger   ' DWORD* in/out
)
End Sub

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

import ctypes
from ctypes import wintypes

glGetPixelMapuiv = ctypes.windll.opengl32.glGetPixelMapuiv
glGetPixelMapuiv.restype = None
glGetPixelMapuiv.argtypes = [
    wintypes.DWORD,  # map : DWORD
    ctypes.POINTER(wintypes.DWORD),  # values : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OPENGL32.dll')
glGetPixelMapuiv = Fiddle::Function.new(
  lib['glGetPixelMapuiv'],
  [
    -Fiddle::TYPE_INT,  # map : DWORD
    Fiddle::TYPE_VOIDP,  # values : DWORD* in/out
  ],
  Fiddle::TYPE_VOID)

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

$sig = @"
[DllImport("OPENGL32.dll")]
public static extern void glGetPixelMapuiv(uint map, ref uint values);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OPENGL32_glGetPixelMapuiv' -Namespace Win32 -PassThru
# $api::glGetPixelMapuiv(map, values)

#uselib "OPENGL32.dll"
#func global glGetPixelMapuiv "glGetPixelMapuiv" sptr, sptr
; glGetPixelMapuiv map, varptr(values)
; map : DWORD -> "sptr"
; values : DWORD* in/out -> "sptr"

出力引数:

#uselib "OPENGL32.dll"
#func global glGetPixelMapuiv "glGetPixelMapuiv" int, var
; glGetPixelMapuiv map, values
; map : DWORD -> "int"
; values : DWORD* 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 glGetPixelMapuiv "glGetPixelMapuiv" int, sptr
; glGetPixelMapuiv map, varptr(values)
; map : DWORD -> "int"
; values : DWORD* 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 glGetPixelMapuiv(DWORD map, DWORD* values)
#uselib "OPENGL32.dll"
#func global glGetPixelMapuiv "glGetPixelMapuiv" int, var
; glGetPixelMapuiv map, values
; map : DWORD -> "int"
; values : DWORD* 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 glGetPixelMapuiv(DWORD map, DWORD* values)
#uselib "OPENGL32.dll"
#func global glGetPixelMapuiv "glGetPixelMapuiv" int, intptr
; glGetPixelMapuiv map, varptr(values)
; map : DWORD -> "int"
; values : DWORD* 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")
	procglGetPixelMapuiv = opengl32.NewProc("glGetPixelMapuiv")
)

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

procedure glGetPixelMapuiv(
  map: DWORD;   // DWORD
  values: Pointer   // DWORD* in/out
); stdcall;
  external 'OPENGL32.dll' name 'glGetPixelMapuiv';

result := DllCall("OPENGL32\glGetPixelMapuiv"
    , "UInt", map   ; DWORD
    , "Ptr", values   ; DWORD* in/out
    , "Int")   ; return: void

●glGetPixelMapuiv(map, values) = DLL("OPENGL32.dll", "int glGetPixelMapuiv(dword, void*)")
# 呼び出し: glGetPixelMapuiv(map, values)
# map : DWORD -> "dword"
# values : DWORD* 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)。