GdipCreatePathGradientI

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

Status GdipCreatePathGradientI(
    const Point* points,
    INT count,
    WrapMode wrapMode,
    GpPathGradient** polyGradient
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipCreatePathGradientI(
    points As IntPtr,   ' Point*
    count As Integer,   ' INT
    wrapMode As Integer,   ' WrapMode
    polyGradient As IntPtr   ' GpPathGradient** in/out
) As Integer
End Function

' points : Point*
' count : INT
' wrapMode : WrapMode
' polyGradient : GpPathGradient** in/out
Declare PtrSafe Function GdipCreatePathGradientI Lib "gdiplus" ( _
    ByVal points As LongPtr, _
    ByVal count As Long, _
    ByVal wrapMode As Long, _
    ByVal polyGradient As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GdipCreatePathGradientI = ctypes.windll.gdiplus.GdipCreatePathGradientI
GdipCreatePathGradientI.restype = ctypes.c_int
GdipCreatePathGradientI.argtypes = [
    ctypes.c_void_p,  # points : Point*
    ctypes.c_int,  # count : INT
    ctypes.c_int,  # wrapMode : WrapMode
    ctypes.c_void_p,  # polyGradient : GpPathGradient** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipCreatePathGradientI = Fiddle::Function.new(
  lib['GdipCreatePathGradientI'],
  [
    Fiddle::TYPE_VOIDP,  # points : Point*
    Fiddle::TYPE_INT,  # count : INT
    Fiddle::TYPE_INT,  # wrapMode : WrapMode
    Fiddle::TYPE_VOIDP,  # polyGradient : GpPathGradient** in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipCreatePathGradientI(
        points: *const Point,  // Point*
        count: i32,  // INT
        wrapMode: i32,  // WrapMode
        polyGradient: *mut *mut GpPathGradient  // GpPathGradient** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipCreatePathGradientI(IntPtr points, int count, int wrapMode, IntPtr polyGradient);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipCreatePathGradientI' -Namespace Win32 -PassThru
# $api::GdipCreatePathGradientI(points, count, wrapMode, polyGradient)

#uselib "gdiplus.dll"
#func global GdipCreatePathGradientI "GdipCreatePathGradientI" sptr, sptr, sptr, sptr
; GdipCreatePathGradientI varptr(points), count, wrapMode, varptr(polyGradient)   ; 戻り値は stat
; points : Point* -> "sptr"
; count : INT -> "sptr"
; wrapMode : WrapMode -> "sptr"
; polyGradient : GpPathGradient** in/out -> "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。

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

var (
	gdiplus = windows.NewLazySystemDLL("gdiplus.dll")
	procGdipCreatePathGradientI = gdiplus.NewProc("GdipCreatePathGradientI")
)

// points (Point*), count (INT), wrapMode (WrapMode), polyGradient (GpPathGradient** in/out)
r1, _, err := procGdipCreatePathGradientI.Call(
	uintptr(points),
	uintptr(count),
	uintptr(wrapMode),
	uintptr(polyGradient),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipCreatePathGradientI(
  points: Pointer;   // Point*
  count: Integer;   // INT
  wrapMode: Integer;   // WrapMode
  polyGradient: Pointer   // GpPathGradient** in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipCreatePathGradientI';

result := DllCall("gdiplus\GdipCreatePathGradientI"
    , "Ptr", points   ; Point*
    , "Int", count   ; INT
    , "Int", wrapMode   ; WrapMode
    , "Ptr", polyGradient   ; GpPathGradient** in/out
    , "Int")   ; return: Status

●GdipCreatePathGradientI(points, count, wrapMode, polyGradient) = DLL("gdiplus.dll", "int GdipCreatePathGradientI(void*, int, int, void*)")
# 呼び出し: GdipCreatePathGradientI(points, count, wrapMode, polyGradient)
# points : Point* -> "void*"
# count : INT -> "int"
# wrapMode : WrapMode -> "int"
# polyGradient : GpPathGradient** in/out -> "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)。

const std = @import("std");

extern "gdiplus" fn GdipCreatePathGradientI(
    points: [*c]Point, // Point*
    count: i32, // INT
    wrapMode: i32, // WrapMode
    polyGradient: [*c][*c]GpPathGradient // GpPathGradient** in/out
) callconv(std.os.windows.WINAPI) i32;

proc GdipCreatePathGradientI(
    points: ptr Point,  # Point*
    count: int32,  # INT
    wrapMode: int32,  # WrapMode
    polyGradient: ptr GpPathGradient  # GpPathGradient** in/out
): int32 {.importc: "GdipCreatePathGradientI", stdcall, dynlib: "gdiplus.dll".}

pragma(lib, "gdiplus");
extern(Windows)
int GdipCreatePathGradientI(
    Point* points,   // Point*
    int count,   // INT
    int wrapMode,   // WrapMode
    GpPathGradient** polyGradient   // GpPathGradient** in/out
);

ccall((:GdipCreatePathGradientI, "gdiplus.dll"), stdcall, Int32,
      (Ptr{Point}, Int32, Int32, Ptr{GpPathGradient}),
      points, count, wrapMode, polyGradient)
# points : Point* -> Ptr{Point}
# count : INT -> Int32
# wrapMode : WrapMode -> Int32
# polyGradient : GpPathGradient** in/out -> Ptr{GpPathGradient}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GdipCreatePathGradientI(
    void* points,
    int32_t count,
    int32_t wrapMode,
    void* polyGradient);
]]
local gdiplus = ffi.load("gdiplus")
-- gdiplus.GdipCreatePathGradientI(points, count, wrapMode, polyGradient)
-- points : Point*
-- count : INT
-- wrapMode : WrapMode
-- polyGradient : GpPathGradient** in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('gdiplus.dll');
const GdipCreatePathGradientI = lib.func('__stdcall', 'GdipCreatePathGradientI', 'int32_t', ['void *', 'int32_t', 'int32_t', 'void *']);
// GdipCreatePathGradientI(points, count, wrapMode, polyGradient)
// points : Point* -> 'void *'
// count : INT -> 'int32_t'
// wrapMode : WrapMode -> 'int32_t'
// polyGradient : GpPathGradient** in/out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("gdiplus.dll", {
  GdipCreatePathGradientI: { parameters: ["pointer", "i32", "i32", "pointer"], result: "i32" },
});
// lib.symbols.GdipCreatePathGradientI(points, count, wrapMode, polyGradient)
// points : Point* -> "pointer"
// count : INT -> "i32"
// wrapMode : WrapMode -> "i32"
// polyGradient : GpPathGradient** in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t GdipCreatePathGradientI(
    void* points,
    int32_t count,
    int32_t wrapMode,
    void* polyGradient);
C, "gdiplus.dll");
// $ffi->GdipCreatePathGradientI(points, count, wrapMode, polyGradient);
// points : Point*
// count : INT
// wrapMode : WrapMode
// polyGradient : GpPathGradient** in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Gdiplus extends StdCallLibrary {
    Gdiplus INSTANCE = Native.load("gdiplus", Gdiplus.class);
    int GdipCreatePathGradientI(
        Pointer points,   // Point*
        int count,   // INT
        int wrapMode,   // WrapMode
        Pointer polyGradient   // GpPathGradient** in/out
    );
}

@[Link("gdiplus")]
lib Libgdiplus
  fun GdipCreatePathGradientI = GdipCreatePathGradientI(
    points : Point*,   # Point*
    count : Int32,   # INT
    wrapMode : Int32,   # WrapMode
    polyGradient : GpPathGradient**   # GpPathGradient** in/out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef GdipCreatePathGradientINative = Int32 Function(Pointer<Void>, Int32, Int32, Pointer<Void>);
typedef GdipCreatePathGradientIDart = int Function(Pointer<Void>, int, int, Pointer<Void>);
final GdipCreatePathGradientI = DynamicLibrary.open('gdiplus.dll')
    .lookupFunction<GdipCreatePathGradientINative, GdipCreatePathGradientIDart>('GdipCreatePathGradientI');
// points : Point* -> Pointer<Void>
// count : INT -> Int32
// wrapMode : WrapMode -> Int32
// polyGradient : GpPathGradient** in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GdipCreatePathGradientI(
  points: Pointer;   // Point*
  count: Integer;   // INT
  wrapMode: Integer;   // WrapMode
  polyGradient: Pointer   // GpPathGradient** in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipCreatePathGradientI';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "GdipCreatePathGradientI"
  c_GdipCreatePathGradientI :: Ptr () -> Int32 -> Int32 -> Ptr () -> IO Int32
-- points : Point* -> Ptr ()
-- count : INT -> Int32
-- wrapMode : WrapMode -> Int32
-- polyGradient : GpPathGradient** in/out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let gdipcreatepathgradienti =
  foreign "GdipCreatePathGradientI"
    ((ptr void) @-> int32_t @-> int32_t @-> (ptr void) @-> returning int32_t)
(* points : Point* -> (ptr void) *)
(* count : INT -> int32_t *)
(* wrapMode : WrapMode -> int32_t *)
(* polyGradient : GpPathGradient** in/out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library gdiplus (t "gdiplus.dll"))
(cffi:use-foreign-library gdiplus)

(cffi:defcfun ("GdipCreatePathGradientI" gdip-create-path-gradient-i :convention :stdcall) :int32
  (points :pointer)   ; Point*
  (count :int32)   ; INT
  (wrap-mode :int32)   ; WrapMode
  (poly-gradient :pointer))   ; GpPathGradient** in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GdipCreatePathGradientI = Win32::API::More->new('gdiplus',
    'int GdipCreatePathGradientI(LPVOID points, int count, int wrapMode, LPVOID polyGradient)');
# my $ret = $GdipCreatePathGradientI->Call($points, $count, $wrapMode, $polyGradient);
# points : Point* -> LPVOID
# count : INT -> int
# wrapMode : WrapMode -> int
# polyGradient : GpPathGradient** in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。