use windows::{core::*, Win32::Foundation::*, Win32::System::Threading::*, Win32::UI::WindowsAndMessaging::*};

fn main() -> Result<()> {
    unsafe {
        let event = CreateEventW(std::ptr::null_mut(), true, false, None);
        SetEvent(event).ok()?;
        WaitForSingleObject(event, 0);
        CloseHandle(event).ok()?;

        MessageBoxA(None, "Text", "Caption", MB_OK);
    }

    Ok(())
}

use windows_sys::{Win32::Foundation::*, Win32::System::Threading::*, Win32::UI::WindowsAndMessaging::*};

fn main() {
    unsafe {
        let event = CreateEventW(std::ptr::null_mut(), BOOL(1), BOOL(0), PWSTR(std::ptr::null_mut()));
        SetEvent(event);
        WaitForSingleObject(event, 0);
        CloseHandle(event);

        MessageBoxA(HWND(0), PSTR(b"Text\0".as_ptr() as _), PSTR(b"Caption\0".as_ptr() as _), MB_OK);
    }
}

use winapi::{um::handleapi::*, um::synchapi::*, um::winuser::*};

fn main() {
    unsafe {
        let event = CreateEventW(std::ptr::null_mut(), 1, 0, std::ptr::null_mut());
        SetEvent(event);
        WaitForSingleObject(event, 0);
        CloseHandle(event);

        MessageBoxA(std::ptr::null_mut(), b"Text\0".as_ptr() as _, b"Caption\0".as_ptr() as _, MB_OK);
    }
}