IsZoomed

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

BOOL IsZoomed(
    HWND hWnd
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function IsZoomed(
    hWnd As IntPtr   ' HWND
) As Boolean
End Function

' hWnd : HWND
Declare PtrSafe Function IsZoomed Lib "user32" ( _
    ByVal hWnd 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

IsZoomed = ctypes.windll.user32.IsZoomed
IsZoomed.restype = wintypes.BOOL
IsZoomed.argtypes = [
    wintypes.HANDLE,  # hWnd : HWND
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
IsZoomed = Fiddle::Function.new(
  lib['IsZoomed'],
  [
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
  ],
  Fiddle::TYPE_INT)

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

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USER32.dll")]
public static extern bool IsZoomed(IntPtr hWnd);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_IsZoomed' -Namespace Win32 -PassThru
# $api::IsZoomed(hWnd)

#uselib "USER32.dll"
#func global IsZoomed "IsZoomed" sptr
; IsZoomed hWnd   ; 戻り値は stat
; hWnd : HWND -> "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 "USER32.dll"
#cfunc global IsZoomed "IsZoomed" sptr
; res = IsZoomed(hWnd)
; hWnd : HWND -> "sptr"

; BOOL IsZoomed(HWND hWnd)
#uselib "USER32.dll"
#cfunc global IsZoomed "IsZoomed" intptr
; res = IsZoomed(hWnd)
; hWnd : HWND -> "intptr"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procIsZoomed = user32.NewProc("IsZoomed")
)

// hWnd (HWND)
r1, _, err := procIsZoomed.Call(
	uintptr(hWnd),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function IsZoomed(
  hWnd: THandle   // HWND
): BOOL; stdcall;
  external 'USER32.dll' name 'IsZoomed';

result := DllCall("USER32\IsZoomed"
    , "Ptr", hWnd   ; HWND
    , "Int")   ; return: BOOL

●IsZoomed(hWnd) = DLL("USER32.dll", "bool IsZoomed(void*)")
# 呼び出し: IsZoomed(hWnd)
# hWnd : HWND -> "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)。