GdipCreateRegionRgnData

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

Status GdipCreateRegionRgnData(
    const BYTE* regionData,
    INT size,
    GpRegion** region
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipCreateRegionRgnData(
    regionData As IntPtr,   ' BYTE*
    size As Integer,   ' INT
    region As IntPtr   ' GpRegion** in/out
) As Integer
End Function

' regionData : BYTE*
' size : INT
' region : GpRegion** in/out
Declare PtrSafe Function GdipCreateRegionRgnData Lib "gdiplus" ( _
    ByVal regionData As LongPtr, _
    ByVal size As Long, _
    ByVal region 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

GdipCreateRegionRgnData = ctypes.windll.gdiplus.GdipCreateRegionRgnData
GdipCreateRegionRgnData.restype = ctypes.c_int
GdipCreateRegionRgnData.argtypes = [
    ctypes.POINTER(ctypes.c_ubyte),  # regionData : BYTE*
    ctypes.c_int,  # size : INT
    ctypes.c_void_p,  # region : GpRegion** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipCreateRegionRgnData = Fiddle::Function.new(
  lib['GdipCreateRegionRgnData'],
  [
    Fiddle::TYPE_VOIDP,  # regionData : BYTE*
    Fiddle::TYPE_INT,  # size : INT
    Fiddle::TYPE_VOIDP,  # region : GpRegion** in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipCreateRegionRgnData(
        regionData: *const u8,  // BYTE*
        size: i32,  // INT
        region: *mut *mut GpRegion  // GpRegion** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipCreateRegionRgnData(IntPtr regionData, int size, IntPtr region);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipCreateRegionRgnData' -Namespace Win32 -PassThru
# $api::GdipCreateRegionRgnData(regionData, size, region)

#uselib "gdiplus.dll"
#func global GdipCreateRegionRgnData "GdipCreateRegionRgnData" sptr, sptr, sptr
; GdipCreateRegionRgnData varptr(regionData), size, varptr(region)   ; 戻り値は stat
; regionData : BYTE* -> "sptr"
; size : INT -> "sptr"
; region : GpRegion** 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 GdipCreateRegionRgnData "GdipCreateRegionRgnData" var, int, var
; res = GdipCreateRegionRgnData(regionData, size, region)
; regionData : BYTE* -> "var"
; size : INT -> "int"
; region : GpRegion** 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 GdipCreateRegionRgnData(BYTE* regionData, INT size, GpRegion** region)
#uselib "gdiplus.dll"
#cfunc global GdipCreateRegionRgnData "GdipCreateRegionRgnData" var, int, var
; res = GdipCreateRegionRgnData(regionData, size, region)
; regionData : BYTE* -> "var"
; size : INT -> "int"
; region : GpRegion** 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")
	procGdipCreateRegionRgnData = gdiplus.NewProc("GdipCreateRegionRgnData")
)

// regionData (BYTE*), size (INT), region (GpRegion** in/out)
r1, _, err := procGdipCreateRegionRgnData.Call(
	uintptr(regionData),
	uintptr(size),
	uintptr(region),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipCreateRegionRgnData(
  regionData: Pointer;   // BYTE*
  size: Integer;   // INT
  region: Pointer   // GpRegion** in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipCreateRegionRgnData';

result := DllCall("gdiplus\GdipCreateRegionRgnData"
    , "Ptr", regionData   ; BYTE*
    , "Int", size   ; INT
    , "Ptr", region   ; GpRegion** in/out
    , "Int")   ; return: Status

●GdipCreateRegionRgnData(regionData, size, region) = DLL("gdiplus.dll", "int GdipCreateRegionRgnData(void*, int, void*)")
# 呼び出し: GdipCreateRegionRgnData(regionData, size, region)
# regionData : BYTE* -> "void*"
# size : INT -> "int"
# region : GpRegion** 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)。