#649 – KeyStates Property Combines IsDown and IsToggled

In a keypress handler, you can check several states for the key that triggered the event.  The IsDown and IsToggled properties indicate whether the key in question is currently down and whether it’s in the toggled state, respectively.

You can also get information on the current state of the key using the KeyStates property.  The property is an enumerated value containing a bitwise combination of the Down and Toggled values.

        private void TextBox_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            Console.WriteLine(string.Format("--- PreviewKeyDown for key {0}", e.Key));
            Console.WriteLine(string.Format("  IsDown={0}, IsToggled={1}", e.IsDown, e.IsToggled));
            Console.WriteLine(string.Format("  KeyStates={0}", e.KeyStates));
        }