AngleArc

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

BOOL AngleArc(
    HDC hdc,
    INT x,
    INT y,
    DWORD r,
    FLOAT StartAngle,
    FLOAT SweepAngle
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function AngleArc(
    hdc As IntPtr,   ' HDC
    x As Integer,   ' INT
    y As Integer,   ' INT
    r As UInteger,   ' DWORD
    StartAngle As Single,   ' FLOAT
    SweepAngle As Single   ' FLOAT
) As Boolean
End Function

' hdc : HDC
' x : INT
' y : INT
' r : DWORD
' StartAngle : FLOAT
' SweepAngle : FLOAT
Declare PtrSafe Function AngleArc Lib "gdi32" ( _
    ByVal hdc As LongPtr, _
    ByVal x As Long, _
    ByVal y As Long, _
    ByVal r As Long, _
    ByVal StartAngle As Single, _
    ByVal SweepAngle As Single) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

AngleArc = ctypes.windll.gdi32.AngleArc
AngleArc.restype = wintypes.BOOL
AngleArc.argtypes = [
    wintypes.HANDLE,  # hdc : HDC
    ctypes.c_int,  # x : INT
    ctypes.c_int,  # y : INT
    wintypes.DWORD,  # r : DWORD
    ctypes.c_float,  # StartAngle : FLOAT
    ctypes.c_float,  # SweepAngle : FLOAT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
AngleArc = Fiddle::Function.new(
  lib['AngleArc'],
  [
    Fiddle::TYPE_VOIDP,  # hdc : HDC
    Fiddle::TYPE_INT,  # x : INT
    Fiddle::TYPE_INT,  # y : INT
    -Fiddle::TYPE_INT,  # r : DWORD
    Fiddle::TYPE_FLOAT,  # StartAngle : FLOAT
    Fiddle::TYPE_FLOAT,  # SweepAngle : FLOAT
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdi32")]
extern "system" {
    fn AngleArc(
        hdc: *mut core::ffi::c_void,  // HDC
        x: i32,  // INT
        y: i32,  // INT
        r: u32,  // DWORD
        StartAngle: f32,  // FLOAT
        SweepAngle: f32  // FLOAT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll")]
public static extern bool AngleArc(IntPtr hdc, int x, int y, uint r, float StartAngle, float SweepAngle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_AngleArc' -Namespace Win32 -PassThru
# $api::AngleArc(hdc, x, y, r, StartAngle, SweepAngle)

#uselib "GDI32.dll"
#func global AngleArc "AngleArc" sptr, sptr, sptr, sptr, float, float
; AngleArc hdc, x, y, r, StartAngle, SweepAngle   ; 戻り値は stat
; hdc : HDC -> "sptr"
; x : INT -> "sptr"
; y : INT -> "sptr"
; r : DWORD -> "sptr"
; StartAngle : FLOAT -> "float"
; SweepAngle : FLOAT -> "float"
; ※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 AngleArc "AngleArc" sptr, int, int, int, float, float
; res = AngleArc(hdc, x, y, r, StartAngle, SweepAngle)
; hdc : HDC -> "sptr"
; x : INT -> "int"
; y : INT -> "int"
; r : DWORD -> "int"
; StartAngle : FLOAT -> "float"
; SweepAngle : FLOAT -> "float"

; BOOL AngleArc(HDC hdc, INT x, INT y, DWORD r, FLOAT StartAngle, FLOAT SweepAngle)
#uselib "GDI32.dll"
#cfunc global AngleArc "AngleArc" intptr, int, int, int, float, float
; res = AngleArc(hdc, x, y, r, StartAngle, SweepAngle)
; hdc : HDC -> "intptr"
; x : INT -> "int"
; y : INT -> "int"
; r : DWORD -> "int"
; StartAngle : FLOAT -> "float"
; SweepAngle : FLOAT -> "float"

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procAngleArc = gdi32.NewProc("AngleArc")
)

// hdc (HDC), x (INT), y (INT), r (DWORD), StartAngle (FLOAT), SweepAngle (FLOAT)
r1, _, err := procAngleArc.Call(
	uintptr(hdc),
	uintptr(x),
	uintptr(y),
	uintptr(r),
	uintptr(math.Float32bits(StartAngle)),
	uintptr(math.Float32bits(SweepAngle)),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL
// 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。

function AngleArc(
  hdc: THandle;   // HDC
  x: Integer;   // INT
  y: Integer;   // INT
  r: DWORD;   // DWORD
  StartAngle: Single;   // FLOAT
  SweepAngle: Single   // FLOAT
): BOOL; stdcall;
  external 'GDI32.dll' name 'AngleArc';

result := DllCall("GDI32\AngleArc"
    , "Ptr", hdc   ; HDC
    , "Int", x   ; INT
    , "Int", y   ; INT
    , "UInt", r   ; DWORD
    , "Float", StartAngle   ; FLOAT
    , "Float", SweepAngle   ; FLOAT
    , "Int")   ; return: BOOL

●AngleArc(hdc, x, y, r, StartAngle, SweepAngle) = DLL("GDI32.dll", "bool AngleArc(void*, int, int, dword, float, float)")
# 呼び出し: AngleArc(hdc, x, y, r, StartAngle, SweepAngle)
# hdc : HDC -> "void*"
# x : INT -> "int"
# y : INT -> "int"
# r : DWORD -> "dword"
# StartAngle : FLOAT -> "float"
# SweepAngle : 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)。