gluNurbsCallback

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

void gluNurbsCallback(
    GLUnurbs* nobj,
    DWORD which,
    INT_PTR fn
);

<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Sub gluNurbsCallback(
    ByRef nobj As IntPtr,   ' GLUnurbs* in/out
    which As UInteger,   ' DWORD
    fn As IntPtr   ' INT_PTR
)
End Sub

' nobj : GLUnurbs* in/out
' which : DWORD
' fn : INT_PTR
Declare PtrSafe Sub gluNurbsCallback Lib "glu32" ( _
    ByRef nobj As LongPtr, _
    ByVal which As Long, _
    ByVal fn As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

gluNurbsCallback = ctypes.windll.glu32.gluNurbsCallback
gluNurbsCallback.restype = None
gluNurbsCallback.argtypes = [
    ctypes.c_void_p,  # nobj : GLUnurbs* in/out
    wintypes.DWORD,  # which : DWORD
    ctypes.c_ssize_t,  # fn : INT_PTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GLU32.dll')
gluNurbsCallback = Fiddle::Function.new(
  lib['gluNurbsCallback'],
  [
    Fiddle::TYPE_VOIDP,  # nobj : GLUnurbs* in/out
    -Fiddle::TYPE_INT,  # which : DWORD
    Fiddle::TYPE_INTPTR_T,  # fn : INT_PTR
  ],
  Fiddle::TYPE_VOID)

#[link(name = "glu32")]
extern "system" {
    fn gluNurbsCallback(
        nobj: *mut isize,  // GLUnurbs* in/out
        which: u32,  // DWORD
        fn: isize  // INT_PTR
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GLU32.dll")]
public static extern void gluNurbsCallback(ref IntPtr nobj, uint which, IntPtr fn);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluNurbsCallback' -Namespace Win32 -PassThru
# $api::gluNurbsCallback(nobj, which, fn)

#uselib "GLU32.dll"
#func global gluNurbsCallback "gluNurbsCallback" sptr, sptr, sptr
; gluNurbsCallback nobj, which, fn
; nobj : GLUnurbs* in/out -> "sptr"
; which : DWORD -> "sptr"
; fn : INT_PTR -> "sptr"

#uselib "GLU32.dll"
#func global gluNurbsCallback "gluNurbsCallback" int, int, sptr
; gluNurbsCallback nobj, which, fn
; nobj : GLUnurbs* in/out -> "int"
; which : DWORD -> "int"
; fn : INT_PTR -> "sptr"

; void gluNurbsCallback(GLUnurbs* nobj, DWORD which, INT_PTR fn)
#uselib "GLU32.dll"
#func global gluNurbsCallback "gluNurbsCallback" int, int, intptr
; gluNurbsCallback nobj, which, fn
; nobj : GLUnurbs* in/out -> "int"
; which : DWORD -> "int"
; fn : INT_PTR -> "intptr"

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

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluNurbsCallback = glu32.NewProc("gluNurbsCallback")
)

// nobj (GLUnurbs* in/out), which (DWORD), fn (INT_PTR)
r1, _, err := procgluNurbsCallback.Call(
	uintptr(nobj),
	uintptr(which),
	uintptr(fn),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure gluNurbsCallback(
  nobj: Pointer;   // GLUnurbs* in/out
  which: DWORD;   // DWORD
  fn: NativeInt   // INT_PTR
); stdcall;
  external 'GLU32.dll' name 'gluNurbsCallback';

result := DllCall("GLU32\gluNurbsCallback"
    , "Ptr", nobj   ; GLUnurbs* in/out
    , "UInt", which   ; DWORD
    , "Ptr", fn   ; INT_PTR
    , "Int")   ; return: void

●gluNurbsCallback(nobj, which, fn) = DLL("GLU32.dll", "int gluNurbsCallback(void*, dword, int)")
# 呼び出し: gluNurbsCallback(nobj, which, fn)
# nobj : GLUnurbs* in/out -> "void*"
# which : DWORD -> "dword"
# fn : INT_PTR -> "int"
# 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)。