GdipTransformRegion

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

Status GdipTransformRegion(
    GpRegion* region,
    Matrix* matrix
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipTransformRegion(
    region As IntPtr,   ' GpRegion* in/out
    ByRef matrix As IntPtr   ' Matrix* in/out
) As Integer
End Function

' region : GpRegion* in/out
' matrix : Matrix* in/out
Declare PtrSafe Function GdipTransformRegion Lib "gdiplus" ( _
    ByVal region As LongPtr, _
    ByRef matrix 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

GdipTransformRegion = ctypes.windll.gdiplus.GdipTransformRegion
GdipTransformRegion.restype = ctypes.c_int
GdipTransformRegion.argtypes = [
    ctypes.c_void_p,  # region : GpRegion* in/out
    ctypes.c_void_p,  # matrix : Matrix* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipTransformRegion = Fiddle::Function.new(
  lib['GdipTransformRegion'],
  [
    Fiddle::TYPE_VOIDP,  # region : GpRegion* in/out
    Fiddle::TYPE_VOIDP,  # matrix : Matrix* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipTransformRegion(
        region: *mut GpRegion,  // GpRegion* in/out
        matrix: *mut isize  // Matrix* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

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

#uselib "gdiplus.dll"
#func global GdipTransformRegion "GdipTransformRegion" sptr, sptr
; GdipTransformRegion varptr(region), matrix   ; 戻り値は stat
; region : GpRegion* in/out -> "sptr"
; matrix : Matrix* 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 GdipTransformRegion "GdipTransformRegion" var, int
; res = GdipTransformRegion(region, matrix)
; region : GpRegion* in/out -> "var"
; matrix : Matrix* in/out -> "int"
; ※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 GdipTransformRegion(GpRegion* region, Matrix* matrix)
#uselib "gdiplus.dll"
#cfunc global GdipTransformRegion "GdipTransformRegion" var, int
; res = GdipTransformRegion(region, matrix)
; region : GpRegion* in/out -> "var"
; matrix : Matrix* in/out -> "int"
; ※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")
	procGdipTransformRegion = gdiplus.NewProc("GdipTransformRegion")
)

// region (GpRegion* in/out), matrix (Matrix* in/out)
r1, _, err := procGdipTransformRegion.Call(
	uintptr(region),
	uintptr(matrix),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipTransformRegion(
  region: Pointer;   // GpRegion* in/out
  matrix: Pointer   // Matrix* in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipTransformRegion';

result := DllCall("gdiplus\GdipTransformRegion"
    , "Ptr", region   ; GpRegion* in/out
    , "Ptr", matrix   ; Matrix* in/out
    , "Int")   ; return: Status

●GdipTransformRegion(region, matrix) = DLL("gdiplus.dll", "int GdipTransformRegion(void*, void*)")
# 呼び出し: GdipTransformRegion(region, matrix)
# region : GpRegion* in/out -> "void*"
# matrix : Matrix* 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)。