CombineTransform

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

BOOL CombineTransform(
    XFORM* lpxfOut,
    const XFORM* lpxf1,
    const XFORM* lpxf2
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function CombineTransform(
    lpxfOut As IntPtr,   ' XFORM* out
    lpxf1 As IntPtr,   ' XFORM*
    lpxf2 As IntPtr   ' XFORM*
) As Boolean
End Function

' lpxfOut : XFORM* out
' lpxf1 : XFORM*
' lpxf2 : XFORM*
Declare PtrSafe Function CombineTransform Lib "gdi32" ( _
    ByVal lpxfOut As LongPtr, _
    ByVal lpxf1 As LongPtr, _
    ByVal lpxf2 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

CombineTransform = ctypes.windll.gdi32.CombineTransform
CombineTransform.restype = wintypes.BOOL
CombineTransform.argtypes = [
    ctypes.c_void_p,  # lpxfOut : XFORM* out
    ctypes.c_void_p,  # lpxf1 : XFORM*
    ctypes.c_void_p,  # lpxf2 : XFORM*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
CombineTransform = Fiddle::Function.new(
  lib['CombineTransform'],
  [
    Fiddle::TYPE_VOIDP,  # lpxfOut : XFORM* out
    Fiddle::TYPE_VOIDP,  # lpxf1 : XFORM*
    Fiddle::TYPE_VOIDP,  # lpxf2 : XFORM*
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdi32")]
extern "system" {
    fn CombineTransform(
        lpxfOut: *mut XFORM,  // XFORM* out
        lpxf1: *const XFORM,  // XFORM*
        lpxf2: *const XFORM  // XFORM*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll")]
public static extern bool CombineTransform(IntPtr lpxfOut, IntPtr lpxf1, IntPtr lpxf2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_CombineTransform' -Namespace Win32 -PassThru
# $api::CombineTransform(lpxfOut, lpxf1, lpxf2)

#uselib "GDI32.dll"
#func global CombineTransform "CombineTransform" sptr, sptr, sptr
; CombineTransform varptr(lpxfOut), varptr(lpxf1), varptr(lpxf2)   ; 戻り値は stat
; lpxfOut : XFORM* out -> "sptr"
; lpxf1 : XFORM* -> "sptr"
; lpxf2 : XFORM* -> "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 CombineTransform "CombineTransform" var, var, var
; res = CombineTransform(lpxfOut, lpxf1, lpxf2)
; lpxfOut : XFORM* out -> "var"
; lpxf1 : XFORM* -> "var"
; lpxf2 : XFORM* -> "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。

; BOOL CombineTransform(XFORM* lpxfOut, XFORM* lpxf1, XFORM* lpxf2)
#uselib "GDI32.dll"
#cfunc global CombineTransform "CombineTransform" var, var, var
; res = CombineTransform(lpxfOut, lpxf1, lpxf2)
; lpxfOut : XFORM* out -> "var"
; lpxf1 : XFORM* -> "var"
; lpxf2 : XFORM* -> "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 (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procCombineTransform = gdi32.NewProc("CombineTransform")
)

// lpxfOut (XFORM* out), lpxf1 (XFORM*), lpxf2 (XFORM*)
r1, _, err := procCombineTransform.Call(
	uintptr(lpxfOut),
	uintptr(lpxf1),
	uintptr(lpxf2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CombineTransform(
  lpxfOut: Pointer;   // XFORM* out
  lpxf1: Pointer;   // XFORM*
  lpxf2: Pointer   // XFORM*
): BOOL; stdcall;
  external 'GDI32.dll' name 'CombineTransform';

result := DllCall("GDI32\CombineTransform"
    , "Ptr", lpxfOut   ; XFORM* out
    , "Ptr", lpxf1   ; XFORM*
    , "Ptr", lpxf2   ; XFORM*
    , "Int")   ; return: BOOL

●CombineTransform(lpxfOut, lpxf1, lpxf2) = DLL("GDI32.dll", "bool CombineTransform(void*, void*, void*)")
# 呼び出し: CombineTransform(lpxfOut, lpxf1, lpxf2)
# lpxfOut : XFORM* out -> "void*"
# lpxf1 : XFORM* -> "void*"
# lpxf2 : XFORM* -> "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)。