GetMetaRgn

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

INT GetMetaRgn(
    HDC hdc,
    HRGN hrgn
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function GetMetaRgn(
    hdc As IntPtr,   ' HDC
    hrgn As IntPtr   ' HRGN
) As Integer
End Function

' hdc : HDC
' hrgn : HRGN
Declare PtrSafe Function GetMetaRgn Lib "gdi32" ( _
    ByVal hdc As LongPtr, _
    ByVal hrgn 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

GetMetaRgn = ctypes.windll.gdi32.GetMetaRgn
GetMetaRgn.restype = ctypes.c_int
GetMetaRgn.argtypes = [
    wintypes.HANDLE,  # hdc : HDC
    wintypes.HANDLE,  # hrgn : HRGN
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
GetMetaRgn = Fiddle::Function.new(
  lib['GetMetaRgn'],
  [
    Fiddle::TYPE_VOIDP,  # hdc : HDC
    Fiddle::TYPE_VOIDP,  # hrgn : HRGN
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdi32")]
extern "system" {
    fn GetMetaRgn(
        hdc: *mut core::ffi::c_void,  // HDC
        hrgn: *mut core::ffi::c_void  // HRGN
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GDI32.dll")]
public static extern int GetMetaRgn(IntPtr hdc, IntPtr hrgn);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_GetMetaRgn' -Namespace Win32 -PassThru
# $api::GetMetaRgn(hdc, hrgn)

#uselib "GDI32.dll"
#func global GetMetaRgn "GetMetaRgn" sptr, sptr
; GetMetaRgn hdc, hrgn   ; 戻り値は stat
; hdc : HDC -> "sptr"
; hrgn : HRGN -> "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 "GDI32.dll"
#cfunc global GetMetaRgn "GetMetaRgn" sptr, sptr
; res = GetMetaRgn(hdc, hrgn)
; hdc : HDC -> "sptr"
; hrgn : HRGN -> "sptr"

; INT GetMetaRgn(HDC hdc, HRGN hrgn)
#uselib "GDI32.dll"
#cfunc global GetMetaRgn "GetMetaRgn" intptr, intptr
; res = GetMetaRgn(hdc, hrgn)
; hdc : HDC -> "intptr"
; hrgn : HRGN -> "intptr"

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procGetMetaRgn = gdi32.NewProc("GetMetaRgn")
)

// hdc (HDC), hrgn (HRGN)
r1, _, err := procGetMetaRgn.Call(
	uintptr(hdc),
	uintptr(hrgn),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function GetMetaRgn(
  hdc: THandle;   // HDC
  hrgn: THandle   // HRGN
): Integer; stdcall;
  external 'GDI32.dll' name 'GetMetaRgn';

result := DllCall("GDI32\GetMetaRgn"
    , "Ptr", hdc   ; HDC
    , "Ptr", hrgn   ; HRGN
    , "Int")   ; return: INT

●GetMetaRgn(hdc, hrgn) = DLL("GDI32.dll", "int GetMetaRgn(void*, void*)")
# 呼び出し: GetMetaRgn(hdc, hrgn)
# hdc : HDC -> "void*"
# hrgn : HRGN -> "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)。