/// <summary>
/// Registers a hot key in the system.
/// </summary>
/// <param name="modifier">The modifiers that are associated with the hot key.</param>
/// <param name="key">The key itself that is associated with the hot key.</param>
public HotkeyRegistration RegisterHotKey(ModifierKeys modifier, Keys key, Action action)
{
var id = ++_currentId;
var registration = new HotkeyRegistration(this, id, modifier, key, action);
// register the hot key.
if (!RegisterHotKey(_window.Handle, id, (uint)modifier, (uint)key))
{
throw new InvalidOperationException("Couldn’t register the hot key.");
}
registrations.Add(registration);
return(registration);
}
private void setHotkey(ModifierKeys modifierKeys, Keys key)
{
List <string> txt = new List <string>();
txt.Add("Hotkey:");
foreach (ModifierKeys mod in Enum.GetValues(typeof(ModifierKeys)))
{
if ((modifierKeys & mod) == mod)
{
txt.Add(mod.ToString());
}
}
txt.Add(key.ToString());
label_hotkey.Text = string.Join(" ", txt);
if (_hotkeyRegistration == null || _hotkeyRegistration.Key != key || _hotkeyRegistration.Modifier != modifierKeys)
{
_hotkeyRegistration?.Unregister();
try
{
_hotkeyRegistration = hook.RegisterHotKey(modifierKeys, key, Hook_KeyPress);
}
catch (InvalidOperationException ex)
{
label_hotkey.Text = "Could not register key";
}
}
if (Properties.Settings.Default.hotkeyModifiers != modifierKeys || Properties.Settings.Default.hotkeyKey != key)
{
Properties.Settings.Default.hotkeyModifiers = modifierKeys;
Properties.Settings.Default.hotkeyKey = key;
Properties.Settings.Default.Save();
}
}
public void Unregister(HotkeyRegistration hotkey)
{
UnregisterHotKey(_window.Handle, hotkey.Id);
registrations.Remove(hotkey);
}
