GdipDrawEllipseI

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

Status GdipDrawEllipseI(
    GpGraphics* graphics,
    GpPen* pen,
    INT x,
    INT y,
    INT width,
    INT height
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipDrawEllipseI(
    graphics As IntPtr,   ' GpGraphics* in/out
    pen As IntPtr,   ' GpPen* in/out
    x As Integer,   ' INT
    y As Integer,   ' INT
    width As Integer,   ' INT
    height As Integer   ' INT
) As Integer
End Function

' graphics : GpGraphics* in/out
' pen : GpPen* in/out
' x : INT
' y : INT
' width : INT
' height : INT
Declare PtrSafe Function GdipDrawEllipseI Lib "gdiplus" ( _
    ByVal graphics As LongPtr, _
    ByVal pen As LongPtr, _
    ByVal x As Long, _
    ByVal y As Long, _
    ByVal width As Long, _
    ByVal height As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GdipDrawEllipseI = ctypes.windll.gdiplus.GdipDrawEllipseI
GdipDrawEllipseI.restype = ctypes.c_int
GdipDrawEllipseI.argtypes = [
    ctypes.c_void_p,  # graphics : GpGraphics* in/out
    ctypes.c_void_p,  # pen : GpPen* in/out
    ctypes.c_int,  # x : INT
    ctypes.c_int,  # y : INT
    ctypes.c_int,  # width : INT
    ctypes.c_int,  # height : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipDrawEllipseI = Fiddle::Function.new(
  lib['GdipDrawEllipseI'],
  [
    Fiddle::TYPE_VOIDP,  # graphics : GpGraphics* in/out
    Fiddle::TYPE_VOIDP,  # pen : GpPen* in/out
    Fiddle::TYPE_INT,  # x : INT
    Fiddle::TYPE_INT,  # y : INT
    Fiddle::TYPE_INT,  # width : INT
    Fiddle::TYPE_INT,  # height : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipDrawEllipseI(
        graphics: *mut GpGraphics,  // GpGraphics* in/out
        pen: *mut GpPen,  // GpPen* in/out
        x: i32,  // INT
        y: i32,  // INT
        width: i32,  // INT
        height: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipDrawEllipseI(IntPtr graphics, IntPtr pen, int x, int y, int width, int height);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipDrawEllipseI' -Namespace Win32 -PassThru
# $api::GdipDrawEllipseI(graphics, pen, x, y, width, height)

#uselib "gdiplus.dll"
#func global GdipDrawEllipseI "GdipDrawEllipseI" sptr, sptr, sptr, sptr, sptr, sptr
; GdipDrawEllipseI varptr(graphics), varptr(pen), x, y, width, height   ; 戻り値は stat
; graphics : GpGraphics* in/out -> "sptr"
; pen : GpPen* in/out -> "sptr"
; x : INT -> "sptr"
; y : INT -> "sptr"
; width : INT -> "sptr"
; height : INT -> "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 "gdiplus.dll"
#cfunc global GdipDrawEllipseI "GdipDrawEllipseI" var, var, int, int, int, int
; res = GdipDrawEllipseI(graphics, pen, x, y, width, height)
; graphics : GpGraphics* in/out -> "var"
; pen : GpPen* in/out -> "var"
; x : INT -> "int"
; y : INT -> "int"
; width : INT -> "int"
; height : INT -> "int"
; ※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。

; Status GdipDrawEllipseI(GpGraphics* graphics, GpPen* pen, INT x, INT y, INT width, INT height)
#uselib "gdiplus.dll"
#cfunc global GdipDrawEllipseI "GdipDrawEllipseI" var, var, int, int, int, int
; res = GdipDrawEllipseI(graphics, pen, x, y, width, height)
; graphics : GpGraphics* in/out -> "var"
; pen : GpPen* in/out -> "var"
; x : INT -> "int"
; y : INT -> "int"
; width : INT -> "int"
; height : INT -> "int"
; ※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 (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipDrawEllipseI = gdiplus.NewProc("GdipDrawEllipseI")
)

// graphics (GpGraphics* in/out), pen (GpPen* in/out), x (INT), y (INT), width (INT), height (INT)
r1, _, err := procGdipDrawEllipseI.Call(
	uintptr(graphics),
	uintptr(pen),
	uintptr(x),
	uintptr(y),
	uintptr(width),
	uintptr(height),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipDrawEllipseI(
  graphics: Pointer;   // GpGraphics* in/out
  pen: Pointer;   // GpPen* in/out
  x: Integer;   // INT
  y: Integer;   // INT
  width: Integer;   // INT
  height: Integer   // INT
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipDrawEllipseI';

result := DllCall("gdiplus\GdipDrawEllipseI"
    , "Ptr", graphics   ; GpGraphics* in/out
    , "Ptr", pen   ; GpPen* in/out
    , "Int", x   ; INT
    , "Int", y   ; INT
    , "Int", width   ; INT
    , "Int", height   ; INT
    , "Int")   ; return: Status

●GdipDrawEllipseI(graphics, pen, x, y, width, height) = DLL("gdiplus.dll", "int GdipDrawEllipseI(void*, void*, int, int, int, int)")
# 呼び出し: GdipDrawEllipseI(graphics, pen, x, y, width, height)
# graphics : GpGraphics* in/out -> "void*"
# pen : GpPen* in/out -> "void*"
# x : INT -> "int"
# y : INT -> "int"
# width : INT -> "int"
# height : INT -> "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)。