ExtCreatePen

// GDI32.dll
#include <windows.h>

HPEN ExtCreatePen(
    DWORD iPenStyle,
    DWORD cWidth,
    const LOGBRUSH* plbrush,
    DWORD cStyle,
    const DWORD* pstyle   // optional
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function ExtCreatePen(
    iPenStyle As UInteger,   ' DWORD
    cWidth As UInteger,   ' DWORD
    plbrush As IntPtr,   ' LOGBRUSH*
    cStyle As UInteger,   ' DWORD
    pstyle As IntPtr   ' DWORD* optional
) As IntPtr
End Function

' iPenStyle : DWORD
' cWidth : DWORD
' plbrush : LOGBRUSH*
' cStyle : DWORD
' pstyle : DWORD* optional
Declare PtrSafe Function ExtCreatePen Lib "gdi32" ( _
    ByVal iPenStyle As Long, _
    ByVal cWidth As Long, _
    ByVal plbrush As LongPtr, _
    ByVal cStyle As Long, _
    ByVal pstyle As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ExtCreatePen = ctypes.windll.gdi32.ExtCreatePen
ExtCreatePen.restype = ctypes.c_void_p
ExtCreatePen.argtypes = [
    wintypes.DWORD,  # iPenStyle : DWORD
    wintypes.DWORD,  # cWidth : DWORD
    ctypes.c_void_p,  # plbrush : LOGBRUSH*
    wintypes.DWORD,  # cStyle : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pstyle : DWORD* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
ExtCreatePen = Fiddle::Function.new(
  lib['ExtCreatePen'],
  [
    -Fiddle::TYPE_INT,  # iPenStyle : DWORD
    -Fiddle::TYPE_INT,  # cWidth : DWORD
    Fiddle::TYPE_VOIDP,  # plbrush : LOGBRUSH*
    -Fiddle::TYPE_INT,  # cStyle : DWORD
    Fiddle::TYPE_VOIDP,  # pstyle : DWORD* optional
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "gdi32")]
extern "system" {
    fn ExtCreatePen(
        iPenStyle: u32,  // DWORD
        cWidth: u32,  // DWORD
        plbrush: *const LOGBRUSH,  // LOGBRUSH*
        cStyle: u32,  // DWORD
        pstyle: *const u32  // DWORD* optional
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GDI32.dll")]
public static extern IntPtr ExtCreatePen(uint iPenStyle, uint cWidth, IntPtr plbrush, uint cStyle, IntPtr pstyle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_ExtCreatePen' -Namespace Win32 -PassThru
# $api::ExtCreatePen(iPenStyle, cWidth, plbrush, cStyle, pstyle)

#uselib "GDI32.dll"
#func global ExtCreatePen "ExtCreatePen" sptr, sptr, sptr, sptr, sptr
; ExtCreatePen iPenStyle, cWidth, varptr(plbrush), cStyle, varptr(pstyle)   ; 戻り値は stat
; iPenStyle : DWORD -> "sptr"
; cWidth : DWORD -> "sptr"
; plbrush : LOGBRUSH* -> "sptr"
; cStyle : DWORD -> "sptr"
; pstyle : DWORD* optional -> "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 "GDI32.dll"
#cfunc global ExtCreatePen "ExtCreatePen" int, int, var, int, var
; res = ExtCreatePen(iPenStyle, cWidth, plbrush, cStyle, pstyle)
; iPenStyle : DWORD -> "int"
; cWidth : DWORD -> "int"
; plbrush : LOGBRUSH* -> "var"
; cStyle : DWORD -> "int"
; pstyle : DWORD* optional -> "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。

; HPEN ExtCreatePen(DWORD iPenStyle, DWORD cWidth, LOGBRUSH* plbrush, DWORD cStyle, DWORD* pstyle)
#uselib "GDI32.dll"
#cfunc global ExtCreatePen "ExtCreatePen" int, int, var, int, var
; res = ExtCreatePen(iPenStyle, cWidth, plbrush, cStyle, pstyle)
; iPenStyle : DWORD -> "int"
; cWidth : DWORD -> "int"
; plbrush : LOGBRUSH* -> "var"
; cStyle : DWORD -> "int"
; pstyle : DWORD* optional -> "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 (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procExtCreatePen = gdi32.NewProc("ExtCreatePen")
)

// iPenStyle (DWORD), cWidth (DWORD), plbrush (LOGBRUSH*), cStyle (DWORD), pstyle (DWORD* optional)
r1, _, err := procExtCreatePen.Call(
	uintptr(iPenStyle),
	uintptr(cWidth),
	uintptr(plbrush),
	uintptr(cStyle),
	uintptr(pstyle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HPEN

function ExtCreatePen(
  iPenStyle: DWORD;   // DWORD
  cWidth: DWORD;   // DWORD
  plbrush: Pointer;   // LOGBRUSH*
  cStyle: DWORD;   // DWORD
  pstyle: Pointer   // DWORD* optional
): THandle; stdcall;
  external 'GDI32.dll' name 'ExtCreatePen';

result := DllCall("GDI32\ExtCreatePen"
    , "UInt", iPenStyle   ; DWORD
    , "UInt", cWidth   ; DWORD
    , "Ptr", plbrush   ; LOGBRUSH*
    , "UInt", cStyle   ; DWORD
    , "Ptr", pstyle   ; DWORD* optional
    , "Ptr")   ; return: HPEN

●ExtCreatePen(iPenStyle, cWidth, plbrush, cStyle, pstyle) = DLL("GDI32.dll", "void* ExtCreatePen(dword, dword, void*, dword, void*)")
# 呼び出し: ExtCreatePen(iPenStyle, cWidth, plbrush, cStyle, pstyle)
# iPenStyle : DWORD -> "dword"
# cWidth : DWORD -> "dword"
# plbrush : LOGBRUSH* -> "void*"
# cStyle : DWORD -> "dword"
# pstyle : DWORD* optional -> "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)。