public void Register(int id, Hotkey hotkey)
{
Keys key = (Keys)hotkey.Key;
HotkeyModifierKeys modifiers = HotkeyModifierKeys.None;
if ((hotkey.Modifiers & VirtualKeyModifiers.Control) == VirtualKeyModifiers.Control)
{
modifiers |= HotkeyModifierKeys.Control;
}
if ((hotkey.Modifiers & VirtualKeyModifiers.Menu) == VirtualKeyModifiers.Menu)
{
modifiers |= HotkeyModifierKeys.Alt;
}
if ((hotkey.Modifiers & VirtualKeyModifiers.Shift) == VirtualKeyModifiers.Shift)
{
modifiers |= HotkeyModifierKeys.Shift;
}
if ((hotkey.Modifiers & VirtualKeyModifiers.Windows) == VirtualKeyModifiers.Windows)
{
modifiers |= HotkeyModifierKeys.Win;
}
var nativeId = _hotkeyHook.RegisterHotKey(modifiers, key);
_hotkeys.Add(new HotkeyEntry(id, nativeId, key, modifiers));
}
public HotkeyEntry(int id, int nativeId, Keys key, HotkeyModifierKeys modifiers)
{
Id = id;
NativeId = nativeId;
Key = key;
Modifiers = modifiers;
}
/// <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 int RegisterHotKey(HotkeyModifierKeys modifier, Keys key)
{
// increment the counter.
_currentId = _currentId + 1;
// register the hot key.
if (!RegisterHotKey(_window.Handle, _currentId, (uint)modifier, (uint)key))
{
throw new InvalidOperationException("Couldn’t register the hot key.");
}
return(_currentId);
}
/// <summary>
/// Overridden to get the notifications.
/// </summary>
/// <param name="m"></param>
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
// check if we got a hot key pressed.
if (m.Msg == WM_HOTKEY)
{
// get the keys.
Keys key = (Keys)(((int)m.LParam >> 16) & 0xFFFF);
HotkeyModifierKeys modifier = (HotkeyModifierKeys)((int)m.LParam & 0xFFFF);
// invoke the event to notify the parent.
KeyPressed?.Invoke(this, new HotkeyPressedEventArgs(modifier, key));
}
}
internal HotkeyPressedEventArgs(HotkeyModifierKeys modifier, Keys key)
{
_modifier = modifier;
_key = key;
}
