MenuItemFromPoint

// USER32.dll
#include <windows.h>

INT MenuItemFromPoint(
    HWND hWnd,   // optional
    HMENU hMenu,
    POINT ptScreen
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function MenuItemFromPoint(
    hWnd As IntPtr,   ' HWND optional
    hMenu As IntPtr,   ' HMENU
    ptScreen As POINT   ' POINT
) As Integer
End Function

' hWnd : HWND optional
' hMenu : HMENU
' ptScreen : POINT
Declare PtrSafe Function MenuItemFromPoint Lib "user32" ( _
    ByVal hWnd As LongPtr, _
    ByVal hMenu As LongPtr, _
    ByVal ptScreen 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

MenuItemFromPoint = ctypes.windll.user32.MenuItemFromPoint
MenuItemFromPoint.restype = ctypes.c_int
MenuItemFromPoint.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND optional
    wintypes.HANDLE,  # hMenu : HMENU
    POINT,  # ptScreen : POINT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
MenuItemFromPoint = Fiddle::Function.new(
  lib['MenuItemFromPoint'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND optional
    Fiddle::TYPE_VOIDP,  # hMenu : HMENU
    Fiddle::TYPE_VOIDP,  # ptScreen : POINT
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn MenuItemFromPoint(
        hWnd: *mut core::ffi::c_void,  // HWND optional
        hMenu: *mut core::ffi::c_void,  // HMENU
        ptScreen: POINT  // POINT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll")]
public static extern int MenuItemFromPoint(IntPtr hWnd, IntPtr hMenu, POINT ptScreen);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_MenuItemFromPoint' -Namespace Win32 -PassThru
# $api::MenuItemFromPoint(hWnd, hMenu, ptScreen)

#uselib "USER32.dll"
#func global MenuItemFromPoint "MenuItemFromPoint" sptr, sptr, sptr
; MenuItemFromPoint hWnd, hMenu, ptScreen   ; 戻り値は stat
; hWnd : HWND optional -> "sptr"
; hMenu : HMENU -> "sptr"
; ptScreen : POINT -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "USER32.dll"
#cfunc global MenuItemFromPoint "MenuItemFromPoint" sptr, sptr, int
; res = MenuItemFromPoint(hWnd, hMenu, ptScreen)
; hWnd : HWND optional -> "sptr"
; hMenu : HMENU -> "sptr"
; ptScreen : POINT -> "int"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

; INT MenuItemFromPoint(HWND hWnd, HMENU hMenu, POINT ptScreen)
#uselib "USER32.dll"
#cfunc global MenuItemFromPoint "MenuItemFromPoint" intptr, intptr, int
; res = MenuItemFromPoint(hWnd, hMenu, ptScreen)
; hWnd : HWND optional -> "intptr"
; hMenu : HMENU -> "intptr"
; ptScreen : POINT -> "int"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procMenuItemFromPoint = user32.NewProc("MenuItemFromPoint")
)

// hWnd (HWND optional), hMenu (HMENU), ptScreen (POINT)
r1, _, err := procMenuItemFromPoint.Call(
	uintptr(hWnd),
	uintptr(hMenu),
	uintptr(ptScreen),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function MenuItemFromPoint(
  hWnd: THandle;   // HWND optional
  hMenu: THandle;   // HMENU
  ptScreen: POINT   // POINT
): Integer; stdcall;
  external 'USER32.dll' name 'MenuItemFromPoint';

result := DllCall("USER32\MenuItemFromPoint"
    , "Ptr", hWnd   ; HWND optional
    , "Ptr", hMenu   ; HMENU
    , "Ptr", ptScreen   ; POINT
    , "Int")   ; return: INT

●MenuItemFromPoint(hWnd, hMenu, ptScreen) = DLL("USER32.dll", "int MenuItemFromPoint(void*, void*, void*)")
# 呼び出し: MenuItemFromPoint(hWnd, hMenu, ptScreen)
# hWnd : HWND optional -> "void*"
# hMenu : HMENU -> "void*"
# ptScreen : POINT -> "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)。