WPF - show window in Action - wpf

Question

I have a small problem. I have method which register global hotkey, when I press hotkey, program call Action. In Action method I would like Show window, but don't work it.
This is my code:
MainWindow.cs:
_hotKeyRegistrator.Add(Modifier.Ctrl, Keys.A, () => {Show();}
HotkeyRegistrator.cs:
public class HotkeyRegistrator
{
private HwndSource _source;
private readonly WindowInteropHelper _windowInteropHelper;
private const int HotkeyId = 9000;
private const int WmHotkey = 0x0312;
private List<HotKey> _hotKeys;
public HotkeyRegistrator(Window window)
{
_windowInteropHelper = new WindowInteropHelper(window);
_source = HwndSource.FromHwnd(_windowInteropHelper.Handle);
_source?.AddHook(HwndHook);
_hotKeys = new List<HotKey>();
}
[DllImport("User32.dll")]
private static extern bool RegisterHotKey([In] IntPtr hWnd, [In] int id, [In] uint fsModifiers, [In] uint vk);
[DllImport("User32.dll")]
private static extern bool UnregisterHotKey([In] IntPtr hWnd, [In] int id);
public void Add(Modifiers modifier, Keys key, Action action)
=> _hotKeys.Add(new HotKey(HotkeyId + _hotKeys.Count, modifier, key, action));
public void Register()
{
foreach (var hotKey in _hotKeys)
{
if (!RegisterHotKey(_windowInteropHelper.Handle, hotKey.Id, hotKey.Modifier, hotKey.Key))
{
throw new Exception("Cannot register hotkey");
}
}
}
public void UnRegisterAll()
{
_source.RemoveHook(HwndHook);
_source = null;
foreach (var hotKey in _hotKeys)
{
UnregisterHotKey(_windowInteropHelper.Handle, hotKey.Id);
}
_hotKeys = null;
}
private IntPtr HwndHook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
if (msg == WmHotkey)
_hotKeys.FirstOrDefault(x => x.Id == wParam.ToInt32())?.Action.Invoke();
return IntPtr.Zero;
}
}
Hotkey.cs:
public class HotKey
{
public int Id { get; set; }
public uint Modifier { get; }
public uint Key { get; }
public Action Action { get; }
public HotKey(int id, Modifiers modifier, Keys key, Action action)
{
Id = id;
Modifier = (uint)modifier;
Key = (uint)key;
Action = action;
}
}
Action method is called using Invoke method. When I press CTRL + A, call action and Show method, but window dont open.
Thanks for advices.

Answer 1

Problem solved. My window has set WindowState="Minimized" attribute on startup. When I would like call Show() after press global shortcut, code must be this:
_hotKeyRegistrator.Add(Modifier.Ctrl, Keys.A, () => {
WindowState = WindowState.Normal;
Show();
});