glRotatef

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

void glRotatef(
    FLOAT angle,
    FLOAT x,
    FLOAT y,
    FLOAT z
);

<DllImport("OPENGL32.dll", ExactSpelling:=True)>
Public Shared Sub glRotatef(
    angle As Single,   ' FLOAT
    x As Single,   ' FLOAT
    y As Single,   ' FLOAT
    z As Single   ' FLOAT
)
End Sub

' angle : FLOAT
' x : FLOAT
' y : FLOAT
' z : FLOAT
Declare PtrSafe Sub glRotatef Lib "opengl32" ( _
    ByVal angle As Single, _
    ByVal x As Single, _
    ByVal y As Single, _
    ByVal z As Single)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

glRotatef = ctypes.windll.opengl32.glRotatef
glRotatef.restype = None
glRotatef.argtypes = [
    ctypes.c_float,  # angle : FLOAT
    ctypes.c_float,  # x : FLOAT
    ctypes.c_float,  # y : FLOAT
    ctypes.c_float,  # z : FLOAT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OPENGL32.dll')
glRotatef = Fiddle::Function.new(
  lib['glRotatef'],
  [
    Fiddle::TYPE_FLOAT,  # angle : FLOAT
    Fiddle::TYPE_FLOAT,  # x : FLOAT
    Fiddle::TYPE_FLOAT,  # y : FLOAT
    Fiddle::TYPE_FLOAT,  # z : FLOAT
  ],
  Fiddle::TYPE_VOID)

#[link(name = "opengl32")]
extern "system" {
    fn glRotatef(
        angle: f32,  // FLOAT
        x: f32,  // FLOAT
        y: f32,  // FLOAT
        z: f32  // FLOAT
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OPENGL32.dll")]
public static extern void glRotatef(float angle, float x, float y, float z);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OPENGL32_glRotatef' -Namespace Win32 -PassThru
# $api::glRotatef(angle, x, y, z)

#uselib "OPENGL32.dll"
#func global glRotatef "glRotatef" float, float, float, float
; glRotatef angle, x, y, z
; angle : FLOAT -> "float"
; x : FLOAT -> "float"
; y : FLOAT -> "float"
; z : FLOAT -> "float"

#uselib "OPENGL32.dll"
#func global glRotatef "glRotatef" float, float, float, float
; glRotatef angle, x, y, z
; angle : FLOAT -> "float"
; x : FLOAT -> "float"
; y : FLOAT -> "float"
; z : FLOAT -> "float"

; void glRotatef(FLOAT angle, FLOAT x, FLOAT y, FLOAT z)
#uselib "OPENGL32.dll"
#func global glRotatef "glRotatef" float, float, float, float
; glRotatef angle, x, y, z
; angle : FLOAT -> "float"
; x : FLOAT -> "float"
; y : FLOAT -> "float"
; z : FLOAT -> "float"

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

var (
	opengl32 = windows.NewLazySystemDLL("OPENGL32.dll")
	procglRotatef = opengl32.NewProc("glRotatef")
)

// angle (FLOAT), x (FLOAT), y (FLOAT), z (FLOAT)
r1, _, err := procglRotatef.Call(
	uintptr(math.Float32bits(angle)),
	uintptr(math.Float32bits(x)),
	uintptr(math.Float32bits(y)),
	uintptr(math.Float32bits(z)),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void
// 注意: float/double 引数は proc.Call では XMM レジスタに渡せません。
// windows.SyscallN(proc.Addr(), math.Float64bits(x), ...) もしくは cgo を使用してください。

procedure glRotatef(
  angle: Single;   // FLOAT
  x: Single;   // FLOAT
  y: Single;   // FLOAT
  z: Single   // FLOAT
); stdcall;
  external 'OPENGL32.dll' name 'glRotatef';

result := DllCall("OPENGL32\glRotatef"
    , "Float", angle   ; FLOAT
    , "Float", x   ; FLOAT
    , "Float", y   ; FLOAT
    , "Float", z   ; FLOAT
    , "Int")   ; return: void

●glRotatef(angle, x, y, z) = DLL("OPENGL32.dll", "int glRotatef(float, float, float, float)")
# 呼び出し: glRotatef(angle, x, y, z)
# angle : FLOAT -> "float"
# x : FLOAT -> "float"
# y : FLOAT -> "float"
# z : FLOAT -> "float"
# 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)。