gluErrorUnicodeStringEXT

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

LPWSTR gluErrorUnicodeStringEXT(
    DWORD errCode
);

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

' errCode : DWORD
Declare PtrSafe Function gluErrorUnicodeStringEXT 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

gluErrorUnicodeStringEXT = ctypes.windll.glu32.gluErrorUnicodeStringEXT
gluErrorUnicodeStringEXT.restype = wintypes.LPWSTR
gluErrorUnicodeStringEXT.argtypes = [
    wintypes.DWORD,  # errCode : DWORD
]

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "glu32")]
extern "system" {
    fn gluErrorUnicodeStringEXT(
        errCode: u32  // DWORD
    ) -> *mut u16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GLU32.dll")]
public static extern IntPtr gluErrorUnicodeStringEXT(uint errCode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluErrorUnicodeStringEXT' -Namespace Win32 -PassThru
# $api::gluErrorUnicodeStringEXT(errCode)

#uselib "GLU32.dll"
#func global gluErrorUnicodeStringEXT "gluErrorUnicodeStringEXT" sptr
; gluErrorUnicodeStringEXT 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 gluErrorUnicodeStringEXT "gluErrorUnicodeStringEXT" int
; res = gluErrorUnicodeStringEXT(errCode)
; errCode : DWORD -> "int"

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

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

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluErrorUnicodeStringEXT = glu32.NewProc("gluErrorUnicodeStringEXT")
)

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

function gluErrorUnicodeStringEXT(
  errCode: DWORD   // DWORD
): PWideChar; stdcall;
  external 'GLU32.dll' name 'gluErrorUnicodeStringEXT';

result := DllCall("GLU32\gluErrorUnicodeStringEXT"
    , "UInt", errCode   ; DWORD
    , "Ptr")   ; return: LPWSTR

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