DeleteEnhMetaFile

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

BOOL DeleteEnhMetaFile(
    HENHMETAFILE hmf   // optional
);

<DllImport("GDI32.dll", ExactSpelling:=True)>
Public Shared Function DeleteEnhMetaFile(
    hmf As IntPtr   ' HENHMETAFILE optional
) As Boolean
End Function

' hmf : HENHMETAFILE optional
Declare PtrSafe Function DeleteEnhMetaFile Lib "gdi32" ( _
    ByVal hmf 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

DeleteEnhMetaFile = ctypes.windll.gdi32.DeleteEnhMetaFile
DeleteEnhMetaFile.restype = wintypes.BOOL
DeleteEnhMetaFile.argtypes = [
    wintypes.HANDLE,  # hmf : HENHMETAFILE optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GDI32.dll')
DeleteEnhMetaFile = Fiddle::Function.new(
  lib['DeleteEnhMetaFile'],
  [
    Fiddle::TYPE_VOIDP,  # hmf : HENHMETAFILE optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "gdi32")]
extern "system" {
    fn DeleteEnhMetaFile(
        hmf: *mut core::ffi::c_void  // HENHMETAFILE optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("GDI32.dll")]
public static extern bool DeleteEnhMetaFile(IntPtr hmf);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GDI32_DeleteEnhMetaFile' -Namespace Win32 -PassThru
# $api::DeleteEnhMetaFile(hmf)

#uselib "GDI32.dll"
#func global DeleteEnhMetaFile "DeleteEnhMetaFile" sptr
; DeleteEnhMetaFile hmf   ; 戻り値は stat
; hmf : HENHMETAFILE optional -> "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 DeleteEnhMetaFile "DeleteEnhMetaFile" sptr
; res = DeleteEnhMetaFile(hmf)
; hmf : HENHMETAFILE optional -> "sptr"

; BOOL DeleteEnhMetaFile(HENHMETAFILE hmf)
#uselib "GDI32.dll"
#cfunc global DeleteEnhMetaFile "DeleteEnhMetaFile" intptr
; res = DeleteEnhMetaFile(hmf)
; hmf : HENHMETAFILE optional -> "intptr"

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

var (
	gdi32 = windows.NewLazySystemDLL("GDI32.dll")
	procDeleteEnhMetaFile = gdi32.NewProc("DeleteEnhMetaFile")
)

// hmf (HENHMETAFILE optional)
r1, _, err := procDeleteEnhMetaFile.Call(
	uintptr(hmf),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DeleteEnhMetaFile(
  hmf: THandle   // HENHMETAFILE optional
): BOOL; stdcall;
  external 'GDI32.dll' name 'DeleteEnhMetaFile';

result := DllCall("GDI32\DeleteEnhMetaFile"
    , "Ptr", hmf   ; HENHMETAFILE optional
    , "Int")   ; return: BOOL

●DeleteEnhMetaFile(hmf) = DLL("GDI32.dll", "bool DeleteEnhMetaFile(void*)")
# 呼び出し: DeleteEnhMetaFile(hmf)
# hmf : HENHMETAFILE optional -> "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)。