glMapGrid1d

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

void glMapGrid1d(
    INT un,
    DOUBLE u1,
    DOUBLE u2
);

<DllImport("OPENGL32.dll", ExactSpelling:=True)>
Public Shared Sub glMapGrid1d(
    un As Integer,   ' INT
    u1 As Double,   ' DOUBLE
    u2 As Double   ' DOUBLE
)
End Sub

' un : INT
' u1 : DOUBLE
' u2 : DOUBLE
Declare PtrSafe Sub glMapGrid1d Lib "opengl32" ( _
    ByVal un As Long, _
    ByVal u1 As Double, _
    ByVal u2 As Double)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

glMapGrid1d = ctypes.windll.opengl32.glMapGrid1d
glMapGrid1d.restype = None
glMapGrid1d.argtypes = [
    ctypes.c_int,  # un : INT
    ctypes.c_double,  # u1 : DOUBLE
    ctypes.c_double,  # u2 : DOUBLE
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OPENGL32.dll')
glMapGrid1d = Fiddle::Function.new(
  lib['glMapGrid1d'],
  [
    Fiddle::TYPE_INT,  # un : INT
    Fiddle::TYPE_DOUBLE,  # u1 : DOUBLE
    Fiddle::TYPE_DOUBLE,  # u2 : DOUBLE
  ],
  Fiddle::TYPE_VOID)

#[link(name = "opengl32")]
extern "system" {
    fn glMapGrid1d(
        un: i32,  // INT
        u1: f64,  // DOUBLE
        u2: f64  // DOUBLE
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OPENGL32.dll")]
public static extern void glMapGrid1d(int un, double u1, double u2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OPENGL32_glMapGrid1d' -Namespace Win32 -PassThru
# $api::glMapGrid1d(un, u1, u2)

#uselib "OPENGL32.dll"
#func global glMapGrid1d "glMapGrid1d" sptr, double, double
; glMapGrid1d un, u1, u2
; un : INT -> "sptr"
; u1 : DOUBLE -> "double"
; u2 : DOUBLE -> "double"

#uselib "OPENGL32.dll"
#func global glMapGrid1d "glMapGrid1d" int, double, double
; glMapGrid1d un, u1, u2
; un : INT -> "int"
; u1 : DOUBLE -> "double"
; u2 : DOUBLE -> "double"

; void glMapGrid1d(INT un, DOUBLE u1, DOUBLE u2)
#uselib "OPENGL32.dll"
#func global glMapGrid1d "glMapGrid1d" int, double, double
; glMapGrid1d un, u1, u2
; un : INT -> "int"
; u1 : DOUBLE -> "double"
; u2 : DOUBLE -> "double"

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

var (
	opengl32 = windows.NewLazySystemDLL("OPENGL32.dll")
	procglMapGrid1d = opengl32.NewProc("glMapGrid1d")
)

// un (INT), u1 (DOUBLE), u2 (DOUBLE)
r1, _, err := procglMapGrid1d.Call(
	uintptr(un),
	uintptr(math.Float64bits(u1)),
	uintptr(math.Float64bits(u2)),
)
_ = 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 glMapGrid1d(
  un: Integer;   // INT
  u1: Double;   // DOUBLE
  u2: Double   // DOUBLE
); stdcall;
  external 'OPENGL32.dll' name 'glMapGrid1d';

result := DllCall("OPENGL32\glMapGrid1d"
    , "Int", un   ; INT
    , "Double", u1   ; DOUBLE
    , "Double", u2   ; DOUBLE
    , "Int")   ; return: void

●glMapGrid1d(un, u1, u2) = DLL("OPENGL32.dll", "int glMapGrid1d(int, double, double)")
# 呼び出し: glMapGrid1d(un, u1, u2)
# un : INT -> "int"
# u1 : DOUBLE -> "double"
# u2 : DOUBLE -> "double"
# 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)。