OleCreateMenuDescriptor

// OLE32.dll
#include <windows.h>

INT_PTR OleCreateMenuDescriptor(
    HMENU hmenuCombined,
    OLEMENUGROUPWIDTHS* lpMenuWidths
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function OleCreateMenuDescriptor(
    hmenuCombined As IntPtr,   ' HMENU
    lpMenuWidths As IntPtr   ' OLEMENUGROUPWIDTHS*
) As IntPtr
End Function

' hmenuCombined : HMENU
' lpMenuWidths : OLEMENUGROUPWIDTHS*
Declare PtrSafe Function OleCreateMenuDescriptor Lib "ole32" ( _
    ByVal hmenuCombined As LongPtr, _
    ByVal lpMenuWidths As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

OleCreateMenuDescriptor = ctypes.windll.ole32.OleCreateMenuDescriptor
OleCreateMenuDescriptor.restype = ctypes.c_ssize_t
OleCreateMenuDescriptor.argtypes = [
    wintypes.HANDLE,  # hmenuCombined : HMENU
    ctypes.c_void_p,  # lpMenuWidths : OLEMENUGROUPWIDTHS*
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
OleCreateMenuDescriptor = Fiddle::Function.new(
  lib['OleCreateMenuDescriptor'],
  [
    Fiddle::TYPE_VOIDP,  # hmenuCombined : HMENU
    Fiddle::TYPE_VOIDP,  # lpMenuWidths : OLEMENUGROUPWIDTHS*
  ],
  Fiddle::TYPE_INTPTR_T)

#[link(name = "ole32")]
extern "system" {
    fn OleCreateMenuDescriptor(
        hmenuCombined: *mut core::ffi::c_void,  // HMENU
        lpMenuWidths: *mut OLEMENUGROUPWIDTHS  // OLEMENUGROUPWIDTHS*
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern IntPtr OleCreateMenuDescriptor(IntPtr hmenuCombined, IntPtr lpMenuWidths);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_OleCreateMenuDescriptor' -Namespace Win32 -PassThru
# $api::OleCreateMenuDescriptor(hmenuCombined, lpMenuWidths)

#uselib "OLE32.dll"
#func global OleCreateMenuDescriptor "OleCreateMenuDescriptor" sptr, sptr
; OleCreateMenuDescriptor hmenuCombined, varptr(lpMenuWidths)   ; 戻り値は stat
; hmenuCombined : HMENU -> "sptr"
; lpMenuWidths : OLEMENUGROUPWIDTHS* -> "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 "OLE32.dll"
#cfunc global OleCreateMenuDescriptor "OleCreateMenuDescriptor" sptr, var
; res = OleCreateMenuDescriptor(hmenuCombined, lpMenuWidths)
; hmenuCombined : HMENU -> "sptr"
; lpMenuWidths : OLEMENUGROUPWIDTHS* -> "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。

; INT_PTR OleCreateMenuDescriptor(HMENU hmenuCombined, OLEMENUGROUPWIDTHS* lpMenuWidths)
#uselib "OLE32.dll"
#cfunc global OleCreateMenuDescriptor "OleCreateMenuDescriptor" intptr, var
; res = OleCreateMenuDescriptor(hmenuCombined, lpMenuWidths)
; hmenuCombined : HMENU -> "intptr"
; lpMenuWidths : OLEMENUGROUPWIDTHS* -> "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 (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procOleCreateMenuDescriptor = ole32.NewProc("OleCreateMenuDescriptor")
)

// hmenuCombined (HMENU), lpMenuWidths (OLEMENUGROUPWIDTHS*)
r1, _, err := procOleCreateMenuDescriptor.Call(
	uintptr(hmenuCombined),
	uintptr(lpMenuWidths),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT_PTR

function OleCreateMenuDescriptor(
  hmenuCombined: THandle;   // HMENU
  lpMenuWidths: Pointer   // OLEMENUGROUPWIDTHS*
): NativeInt; stdcall;
  external 'OLE32.dll' name 'OleCreateMenuDescriptor';

result := DllCall("OLE32\OleCreateMenuDescriptor"
    , "Ptr", hmenuCombined   ; HMENU
    , "Ptr", lpMenuWidths   ; OLEMENUGROUPWIDTHS*
    , "Ptr")   ; return: INT_PTR

●OleCreateMenuDescriptor(hmenuCombined, lpMenuWidths) = DLL("OLE32.dll", "int OleCreateMenuDescriptor(void*, void*)")
# 呼び出し: OleCreateMenuDescriptor(hmenuCombined, lpMenuWidths)
# hmenuCombined : HMENU -> "void*"
# lpMenuWidths : OLEMENUGROUPWIDTHS* -> "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)。