tileme 0.0.3

(Not yet) A tiling window manager for Windows 10
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use winapi::um::winuser::{EnumWindows, };
use winapi::shared::windef::HWND;
use winapi::shared::minwindef::LPARAM;
use winvd::helpers::get_desktop_number_by_window;
use winvd::Error;

#[derive(Debug)]
pub struct Window {
    hwnd: HWND,
}

impl Window {
    pub fn init(hwnd: HWND) -> Window {
        Window {
            hwnd,
        }
    }

    pub fn desktop_number(&self) -> Result<usize, Error> {
        get_desktop_number_by_window(self.hwnd as u32)
    }

    pub fn hwnd(&self) -> HWND {
        self.hwnd
    }
}

pub fn get_all_windows() -> Result<Vec<Window>, &'static str> {
    let mut windows = Vec::<Window>::new();
    let result = unsafe {
        EnumWindows(Some(_get_all_windows_callback), &mut windows as *mut _ as LPARAM)
    };
    if result == 0 {
        return Err("Could not get a list of all active windows");
    }
    Ok(windows)
}

unsafe extern "system" fn _get_all_windows_callback(hwnd: HWND, vec_pointer: LPARAM) -> i32 {
    let windows = vec_pointer as *mut Vec<Window>;
    windows.as_mut().unwrap().push(Window::init(hwnd));
    1
}