GdipAddPathClosedCurve2

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

Status GdipAddPathClosedCurve2(
    GpPath* path,
    const PointF* points,
    INT count,
    FLOAT tension
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipAddPathClosedCurve2(
    path As IntPtr,   ' GpPath* in/out
    points As IntPtr,   ' PointF*
    count As Integer,   ' INT
    tension As Single   ' FLOAT
) As Integer
End Function

' path : GpPath* in/out
' points : PointF*
' count : INT
' tension : FLOAT
Declare PtrSafe Function GdipAddPathClosedCurve2 Lib "gdiplus" ( _
    ByVal path As LongPtr, _
    ByVal points As LongPtr, _
    ByVal count As Long, _
    ByVal tension 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

GdipAddPathClosedCurve2 = ctypes.windll.gdiplus.GdipAddPathClosedCurve2
GdipAddPathClosedCurve2.restype = ctypes.c_int
GdipAddPathClosedCurve2.argtypes = [
    ctypes.c_void_p,  # path : GpPath* in/out
    ctypes.c_void_p,  # points : PointF*
    ctypes.c_int,  # count : INT
    ctypes.c_float,  # tension : FLOAT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipAddPathClosedCurve2 = Fiddle::Function.new(
  lib['GdipAddPathClosedCurve2'],
  [
    Fiddle::TYPE_VOIDP,  # path : GpPath* in/out
    Fiddle::TYPE_VOIDP,  # points : PointF*
    Fiddle::TYPE_INT,  # count : INT
    Fiddle::TYPE_FLOAT,  # tension : FLOAT
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipAddPathClosedCurve2(
        path: *mut GpPath,  // GpPath* in/out
        points: *const PointF,  // PointF*
        count: i32,  // INT
        tension: f32  // FLOAT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipAddPathClosedCurve2(IntPtr path, IntPtr points, int count, float tension);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipAddPathClosedCurve2' -Namespace Win32 -PassThru
# $api::GdipAddPathClosedCurve2(path, points, count, tension)

#uselib "gdiplus.dll"
#func global GdipAddPathClosedCurve2 "GdipAddPathClosedCurve2" sptr, sptr, sptr, float
; GdipAddPathClosedCurve2 varptr(path), varptr(points), count, tension   ; 戻り値は stat
; path : GpPath* in/out -> "sptr"
; points : PointF* -> "sptr"
; count : INT -> "sptr"
; tension : 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 "gdiplus.dll"
#cfunc global GdipAddPathClosedCurve2 "GdipAddPathClosedCurve2" var, var, int, float
; res = GdipAddPathClosedCurve2(path, points, count, tension)
; path : GpPath* in/out -> "var"
; points : PointF* -> "var"
; count : INT -> "int"
; tension : FLOAT -> "float"
; ※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 GdipAddPathClosedCurve2(GpPath* path, PointF* points, INT count, FLOAT tension)
#uselib "gdiplus.dll"
#cfunc global GdipAddPathClosedCurve2 "GdipAddPathClosedCurve2" var, var, int, float
; res = GdipAddPathClosedCurve2(path, points, count, tension)
; path : GpPath* in/out -> "var"
; points : PointF* -> "var"
; count : INT -> "int"
; tension : FLOAT -> "float"
; ※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 (
	"math"
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipAddPathClosedCurve2 = gdiplus.NewProc("GdipAddPathClosedCurve2")
)

// path (GpPath* in/out), points (PointF*), count (INT), tension (FLOAT)
r1, _, err := procGdipAddPathClosedCurve2.Call(
	uintptr(path),
	uintptr(points),
	uintptr(count),
	uintptr(math.Float32bits(tension)),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status
// 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 GdipAddPathClosedCurve2(
  path: Pointer;   // GpPath* in/out
  points: Pointer;   // PointF*
  count: Integer;   // INT
  tension: Single   // FLOAT
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipAddPathClosedCurve2';

result := DllCall("gdiplus\GdipAddPathClosedCurve2"
    , "Ptr", path   ; GpPath* in/out
    , "Ptr", points   ; PointF*
    , "Int", count   ; INT
    , "Float", tension   ; FLOAT
    , "Int")   ; return: Status

●GdipAddPathClosedCurve2(path, points, count, tension) = DLL("gdiplus.dll", "int GdipAddPathClosedCurve2(void*, void*, int, float)")
# 呼び出し: GdipAddPathClosedCurve2(path, points, count, tension)
# path : GpPath* in/out -> "void*"
# points : PointF* -> "void*"
# count : INT -> "int"
# tension : 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)。