GdipCreateMetafileFromWmf

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

Status GdipCreateMetafileFromWmf(
    HMETAFILE hWmf,
    BOOL deleteWmf,
    const WmfPlaceableFileHeader* wmfPlaceableFileHeader,
    GpMetafile** metafile
);

<DllImport("gdiplus.dll", ExactSpelling:=True)>
Public Shared Function GdipCreateMetafileFromWmf(
    hWmf As IntPtr,   ' HMETAFILE
    deleteWmf As Boolean,   ' BOOL
    wmfPlaceableFileHeader As IntPtr,   ' WmfPlaceableFileHeader*
    metafile As IntPtr   ' GpMetafile** in/out
) As Integer
End Function

' hWmf : HMETAFILE
' deleteWmf : BOOL
' wmfPlaceableFileHeader : WmfPlaceableFileHeader*
' metafile : GpMetafile** in/out
Declare PtrSafe Function GdipCreateMetafileFromWmf Lib "gdiplus" ( _
    ByVal hWmf As LongPtr, _
    ByVal deleteWmf As Long, _
    ByVal wmfPlaceableFileHeader As LongPtr, _
    ByVal metafile 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

GdipCreateMetafileFromWmf = ctypes.windll.gdiplus.GdipCreateMetafileFromWmf
GdipCreateMetafileFromWmf.restype = ctypes.c_int
GdipCreateMetafileFromWmf.argtypes = [
    wintypes.HANDLE,  # hWmf : HMETAFILE
    wintypes.BOOL,  # deleteWmf : BOOL
    ctypes.c_void_p,  # wmfPlaceableFileHeader : WmfPlaceableFileHeader*
    ctypes.c_void_p,  # metafile : GpMetafile** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('gdiplus.dll')
GdipCreateMetafileFromWmf = Fiddle::Function.new(
  lib['GdipCreateMetafileFromWmf'],
  [
    Fiddle::TYPE_VOIDP,  # hWmf : HMETAFILE
    Fiddle::TYPE_INT,  # deleteWmf : BOOL
    Fiddle::TYPE_VOIDP,  # wmfPlaceableFileHeader : WmfPlaceableFileHeader*
    Fiddle::TYPE_VOIDP,  # metafile : GpMetafile** in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdiplus")]
extern "system" {
    fn GdipCreateMetafileFromWmf(
        hWmf: *mut core::ffi::c_void,  // HMETAFILE
        deleteWmf: i32,  // BOOL
        wmfPlaceableFileHeader: *const WmfPlaceableFileHeader,  // WmfPlaceableFileHeader*
        metafile: *mut *mut GpMetafile  // GpMetafile** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("gdiplus.dll")]
public static extern int GdipCreateMetafileFromWmf(IntPtr hWmf, bool deleteWmf, IntPtr wmfPlaceableFileHeader, IntPtr metafile);
"@
$api = Add-Type -MemberDefinition $sig -Name 'gdiplus_GdipCreateMetafileFromWmf' -Namespace Win32 -PassThru
# $api::GdipCreateMetafileFromWmf(hWmf, deleteWmf, wmfPlaceableFileHeader, metafile)

#uselib "gdiplus.dll"
#func global GdipCreateMetafileFromWmf "GdipCreateMetafileFromWmf" sptr, sptr, sptr, sptr
; GdipCreateMetafileFromWmf hWmf, deleteWmf, varptr(wmfPlaceableFileHeader), varptr(metafile)   ; 戻り値は stat
; hWmf : HMETAFILE -> "sptr"
; deleteWmf : BOOL -> "sptr"
; wmfPlaceableFileHeader : WmfPlaceableFileHeader* -> "sptr"
; metafile : GpMetafile** 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 GdipCreateMetafileFromWmf "GdipCreateMetafileFromWmf" sptr, int, var, var
; res = GdipCreateMetafileFromWmf(hWmf, deleteWmf, wmfPlaceableFileHeader, metafile)
; hWmf : HMETAFILE -> "sptr"
; deleteWmf : BOOL -> "int"
; wmfPlaceableFileHeader : WmfPlaceableFileHeader* -> "var"
; metafile : GpMetafile** 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 GdipCreateMetafileFromWmf(HMETAFILE hWmf, BOOL deleteWmf, WmfPlaceableFileHeader* wmfPlaceableFileHeader, GpMetafile** metafile)
#uselib "gdiplus.dll"
#cfunc global GdipCreateMetafileFromWmf "GdipCreateMetafileFromWmf" intptr, int, var, var
; res = GdipCreateMetafileFromWmf(hWmf, deleteWmf, wmfPlaceableFileHeader, metafile)
; hWmf : HMETAFILE -> "intptr"
; deleteWmf : BOOL -> "int"
; wmfPlaceableFileHeader : WmfPlaceableFileHeader* -> "var"
; metafile : GpMetafile** 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")
	procGdipCreateMetafileFromWmf = gdiplus.NewProc("GdipCreateMetafileFromWmf")
)

// hWmf (HMETAFILE), deleteWmf (BOOL), wmfPlaceableFileHeader (WmfPlaceableFileHeader*), metafile (GpMetafile** in/out)
r1, _, err := procGdipCreateMetafileFromWmf.Call(
	uintptr(hWmf),
	uintptr(deleteWmf),
	uintptr(wmfPlaceableFileHeader),
	uintptr(metafile),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // Status

function GdipCreateMetafileFromWmf(
  hWmf: THandle;   // HMETAFILE
  deleteWmf: BOOL;   // BOOL
  wmfPlaceableFileHeader: Pointer;   // WmfPlaceableFileHeader*
  metafile: Pointer   // GpMetafile** in/out
): Integer; stdcall;
  external 'gdiplus.dll' name 'GdipCreateMetafileFromWmf';

result := DllCall("gdiplus\GdipCreateMetafileFromWmf"
    , "Ptr", hWmf   ; HMETAFILE
    , "Int", deleteWmf   ; BOOL
    , "Ptr", wmfPlaceableFileHeader   ; WmfPlaceableFileHeader*
    , "Ptr", metafile   ; GpMetafile** in/out
    , "Int")   ; return: Status

●GdipCreateMetafileFromWmf(hWmf, deleteWmf, wmfPlaceableFileHeader, metafile) = DLL("gdiplus.dll", "int GdipCreateMetafileFromWmf(void*, bool, void*, void*)")
# 呼び出し: GdipCreateMetafileFromWmf(hWmf, deleteWmf, wmfPlaceableFileHeader, metafile)
# hWmf : HMETAFILE -> "void*"
# deleteWmf : BOOL -> "bool"
# wmfPlaceableFileHeader : WmfPlaceableFileHeader* -> "void*"
# metafile : GpMetafile** 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)。