gluGetTessProperty

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

void gluGetTessProperty(
    GLUtesselator* tess,
    DWORD which,
    DOUBLE* value
);

<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Sub gluGetTessProperty(
    ByRef tess As IntPtr,   ' GLUtesselator* in/out
    which As UInteger,   ' DWORD
    ByRef value As Double   ' DOUBLE* in/out
)
End Sub

' tess : GLUtesselator* in/out
' which : DWORD
' value : DOUBLE* in/out
Declare PtrSafe Sub gluGetTessProperty Lib "glu32" ( _
    ByRef tess As LongPtr, _
    ByVal which As Long, _
    ByRef value As Double)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

gluGetTessProperty = ctypes.windll.glu32.gluGetTessProperty
gluGetTessProperty.restype = None
gluGetTessProperty.argtypes = [
    ctypes.c_void_p,  # tess : GLUtesselator* in/out
    wintypes.DWORD,  # which : DWORD
    ctypes.POINTER(ctypes.c_double),  # value : DOUBLE* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GLU32.dll')
gluGetTessProperty = Fiddle::Function.new(
  lib['gluGetTessProperty'],
  [
    Fiddle::TYPE_VOIDP,  # tess : GLUtesselator* in/out
    -Fiddle::TYPE_INT,  # which : DWORD
    Fiddle::TYPE_VOIDP,  # value : DOUBLE* in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "glu32")]
extern "system" {
    fn gluGetTessProperty(
        tess: *mut isize,  // GLUtesselator* in/out
        which: u32,  // DWORD
        value: *mut f64  // DOUBLE* in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GLU32.dll")]
public static extern void gluGetTessProperty(ref IntPtr tess, uint which, ref double value);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluGetTessProperty' -Namespace Win32 -PassThru
# $api::gluGetTessProperty(tess, which, value)

#uselib "GLU32.dll"
#func global gluGetTessProperty "gluGetTessProperty" sptr, sptr, sptr
; gluGetTessProperty tess, which, varptr(value)
; tess : GLUtesselator* in/out -> "sptr"
; which : DWORD -> "sptr"
; value : DOUBLE* in/out -> "sptr"

#uselib "GLU32.dll"
#func global gluGetTessProperty "gluGetTessProperty" int, int, var
; gluGetTessProperty tess, which, value
; tess : GLUtesselator* in/out -> "int"
; which : DWORD -> "int"
; value : DOUBLE* 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 gluGetTessProperty(GLUtesselator* tess, DWORD which, DOUBLE* value)
#uselib "GLU32.dll"
#func global gluGetTessProperty "gluGetTessProperty" int, int, var
; gluGetTessProperty tess, which, value
; tess : GLUtesselator* in/out -> "int"
; which : DWORD -> "int"
; value : DOUBLE* 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。

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

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluGetTessProperty = glu32.NewProc("gluGetTessProperty")
)

// tess (GLUtesselator* in/out), which (DWORD), value (DOUBLE* in/out)
r1, _, err := procgluGetTessProperty.Call(
	uintptr(tess),
	uintptr(which),
	uintptr(value),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure gluGetTessProperty(
  tess: Pointer;   // GLUtesselator* in/out
  which: DWORD;   // DWORD
  value: Pointer   // DOUBLE* in/out
); stdcall;
  external 'GLU32.dll' name 'gluGetTessProperty';

result := DllCall("GLU32\gluGetTessProperty"
    , "Ptr", tess   ; GLUtesselator* in/out
    , "UInt", which   ; DWORD
    , "Ptr", value   ; DOUBLE* in/out
    , "Int")   ; return: void

●gluGetTessProperty(tess, which, value) = DLL("GLU32.dll", "int gluGetTessProperty(void*, dword, void*)")
# 呼び出し: gluGetTessProperty(tess, which, value)
# tess : GLUtesselator* in/out -> "void*"
# which : DWORD -> "dword"
# value : DOUBLE* 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)。