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。

#uselib "gdiplus.dll"
#cfunc global GdipCreatePathGradientI "GdipCreatePathGradientI" var, int, int, var
; res = GdipCreatePathGradientI(points, count, wrapMode, polyGradient)
; points : Point* -> "var"
; count : INT -> "int"
; wrapMode : WrapMode -> "int"
; polyGradient : GpPathGradient** in/out -> "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。

; Status GdipCreatePathGradientI(Point* points, INT count, WrapMode wrapMode, GpPathGradient** polyGradient)
#uselib "gdiplus.dll"
#cfunc global GdipCreatePathGradientI "GdipCreatePathGradientI" var, int, int, var
; res = GdipCreatePathGradientI(points, count, wrapMode, polyGradient)
; points : Point* -> "var"
; count : INT -> "int"
; wrapMode : WrapMode -> "int"
; polyGradient : GpPathGradient** in/out -> "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 (
	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)。