System.Windows.Forms.ButtonBase.OnKeyUp C# (CSharp) Method

		protected override void OnKeyUp (KeyEventArgs kevent)
		{
			if (kevent.KeyData == Keys.Space) {
				is_pressed = false;
				Invalidate ();
				OnClick (EventArgs.Empty);
				kevent.Handled = true;
			}
			
			base.OnKeyUp (kevent);
		}