/// <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 void RegisterHotKey(KeyPressedEventArgs.ModifierKeys 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."); } }
/// <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); KeyPressedEventArgs.ModifierKeys modifier = (KeyPressedEventArgs.ModifierKeys)((int)m.LParam & 0xFFFF); // invoke the event to notify the parent. if (KeyPressed != null) { KeyPressed(this, new KeyPressedEventArgs(modifier, key)); } } }