GdipTransformPoints

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

Status GdipTransformPoints(
    GpGraphics* graphics,
    CoordinateSpace destSpace,
    CoordinateSpace srcSpace,
    PointF* points,
    INT count
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipTransformPoints(
    graphics As IntPtr,   ' GpGraphics* in/out
    destSpace As Integer,   ' CoordinateSpace
    srcSpace As Integer,   ' CoordinateSpace
    points As IntPtr,   ' PointF* in/out
    count As Integer   ' INT
) As Integer
End Function

' graphics : GpGraphics* in/out
' destSpace : CoordinateSpace
' srcSpace : CoordinateSpace
' points : PointF* in/out
' count : INT
Declare PtrSafe Function GdipTransformPoints Lib "gdiplus" ( _
    ByVal graphics As LongPtr, _
    ByVal destSpace As Long, _
    ByVal srcSpace As Long, _
    ByVal points As LongPtr, _
    ByVal count As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GdipTransformPoints = ctypes.windll.gdiplus.GdipTransformPoints
GdipTransformPoints.restype = ctypes.c_int
GdipTransformPoints.argtypes = [
    ctypes.c_void_p,  # graphics : GpGraphics* in/out
    ctypes.c_int,  # destSpace : CoordinateSpace
    ctypes.c_int,  # srcSpace : CoordinateSpace
    ctypes.c_void_p,  # points : PointF* in/out
    ctypes.c_int,  # count : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipTransformPoints = Fiddle::Function.new(
  lib['GdipTransformPoints'],
  [
    Fiddle::TYPE_VOIDP,  # graphics : GpGraphics* in/out
    Fiddle::TYPE_INT,  # destSpace : CoordinateSpace
    Fiddle::TYPE_INT,  # srcSpace : CoordinateSpace
    Fiddle::TYPE_VOIDP,  # points : PointF* in/out
    Fiddle::TYPE_INT,  # count : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipTransformPoints(
        graphics: *mut GpGraphics,  // GpGraphics* in/out
        destSpace: i32,  // CoordinateSpace
        srcSpace: i32,  // CoordinateSpace
        points: *mut PointF,  // PointF* in/out
        count: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipTransformPoints(IntPtr graphics, int destSpace, int srcSpace, IntPtr points, int count);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipTransformPoints' -Namespace Win32 -PassThru
# $api::GdipTransformPoints(graphics, destSpace, srcSpace, points, count)

#uselib "gdiplus.dll"
#func global GdipTransformPoints "GdipTransformPoints" sptr, sptr, sptr, sptr, sptr
; GdipTransformPoints varptr(graphics), destSpace, srcSpace, varptr(points), count   ; 戻り値は stat
; graphics : GpGraphics* in/out -> "sptr"
; destSpace : CoordinateSpace -> "sptr"
; srcSpace : CoordinateSpace -> "sptr"
; points : PointF* in/out -> "sptr"
; count : INT -> "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 GdipTransformPoints "GdipTransformPoints" var, int, int, var, int
; res = GdipTransformPoints(graphics, destSpace, srcSpace, points, count)
; graphics : GpGraphics* in/out -> "var"
; destSpace : CoordinateSpace -> "int"
; srcSpace : CoordinateSpace -> "int"
; points : PointF* in/out -> "var"
; count : INT -> "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 GdipTransformPoints(GpGraphics* graphics, CoordinateSpace destSpace, CoordinateSpace srcSpace, PointF* points, INT count)
#uselib "gdiplus.dll"
#cfunc global GdipTransformPoints "GdipTransformPoints" var, int, int, var, int
; res = GdipTransformPoints(graphics, destSpace, srcSpace, points, count)
; graphics : GpGraphics* in/out -> "var"
; destSpace : CoordinateSpace -> "int"
; srcSpace : CoordinateSpace -> "int"
; points : PointF* in/out -> "var"
; count : INT -> "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")
	procGdipTransformPoints = gdiplus.NewProc("GdipTransformPoints")
)

// graphics (GpGraphics* in/out), destSpace (CoordinateSpace), srcSpace (CoordinateSpace), points (PointF* in/out), count (INT)
r1, _, err := procGdipTransformPoints.Call(
	uintptr(graphics),
	uintptr(destSpace),
	uintptr(srcSpace),
	uintptr(points),
	uintptr(count),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipTransformPoints(
  graphics: Pointer;   // GpGraphics* in/out
  destSpace: Integer;   // CoordinateSpace
  srcSpace: Integer;   // CoordinateSpace
  points: Pointer;   // PointF* in/out
  count: Integer   // INT
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipTransformPoints';

result := DllCall("gdiplus\GdipTransformPoints"
    , "Ptr", graphics   ; GpGraphics* in/out
    , "Int", destSpace   ; CoordinateSpace
    , "Int", srcSpace   ; CoordinateSpace
    , "Ptr", points   ; PointF* in/out
    , "Int", count   ; INT
    , "Int")   ; return: Status

●GdipTransformPoints(graphics, destSpace, srcSpace, points, count) = DLL("gdiplus.dll", "int GdipTransformPoints(void*, int, int, void*, int)")
# 呼び出し: GdipTransformPoints(graphics, destSpace, srcSpace, points, count)
# graphics : GpGraphics* in/out -> "void*"
# destSpace : CoordinateSpace -> "int"
# srcSpace : CoordinateSpace -> "int"
# points : PointF* in/out -> "void*"
# count : INT -> "int"
# 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)。