gluErrorString

関数

OpenGLエラーコードに対応する説明文字列を返す。

DLLGLU32.dll呼出規約winapi

シグネチャ

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

BYTE* gluErrorString(
    DWORD errCode
);

パラメーター

名前	型	方向
errCode	DWORD	in

戻り値の型: BYTE*

各言語での呼び出し定義

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

BYTE* gluErrorString(
    DWORD errCode
);

[DllImport("GLU32.dll", ExactSpelling = true)]
static extern IntPtr gluErrorString(
    uint errCode   // DWORD
);

<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Function gluErrorString(
    errCode As UInteger   ' DWORD
) As IntPtr
End Function

' errCode : DWORD
Declare PtrSafe Function gluErrorString Lib "glu32" ( _
    ByVal errCode As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

gluErrorString = ctypes.windll.glu32.gluErrorString
gluErrorString.restype = ctypes.c_void_p
gluErrorString.argtypes = [
    wintypes.DWORD,  # errCode : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GLU32.dll')
gluErrorString = Fiddle::Function.new(
  lib['gluErrorString'],
  [
    -Fiddle::TYPE_INT,  # errCode : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "glu32")]
extern "system" {
    fn gluErrorString(
        errCode: u32  // DWORD
    ) -> *mut u8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GLU32.dll")]
public static extern IntPtr gluErrorString(uint errCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluErrorString' -Namespace Win32 -PassThru
# $api::gluErrorString(errCode)

#uselib "GLU32.dll"
#func global gluErrorString "gluErrorString" sptr
; gluErrorString errCode   ; 戻り値は stat
; errCode : DWORD -> "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。

#uselib "GLU32.dll"
#cfunc global gluErrorString "gluErrorString" int
; res = gluErrorString(errCode)
; errCode : DWORD -> "int"

; BYTE* gluErrorString(DWORD errCode)
#uselib "GLU32.dll"
#cfunc global gluErrorString "gluErrorString" int
; res = gluErrorString(errCode)
; errCode : DWORD -> "int"

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

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluErrorString = glu32.NewProc("gluErrorString")
)

// errCode (DWORD)
r1, _, err := procgluErrorString.Call(
	uintptr(errCode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BYTE*

function gluErrorString(
  errCode: DWORD   // DWORD
): Pointer; stdcall;
  external 'GLU32.dll' name 'gluErrorString';

result := DllCall("GLU32\gluErrorString"
    , "UInt", errCode   ; DWORD
    , "Ptr")   ; return: BYTE*

●gluErrorString(errCode) = DLL("GLU32.dll", "void* gluErrorString(dword)")
# 呼び出し: gluErrorString(errCode)
# errCode : 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)。