public static void HandlePreviewKeyDown(this IKeyHandler keyHandler, object sender, System.Windows.Input.KeyEventArgs e)
{
//bool fFocusedControlIsTextBox = FocusManager.GetFocusedElement(this).GetType().Equals(typeof(TextBox));
var fFocusedControlIsTextBox = Keyboard.FocusedElement != null && Keyboard.FocusedElement.GetType() == typeof(TextBox);
if (fFocusedControlIsTextBox)
{
e.Handled = false;
}
else if (keyHandler != null)
{
var handled = keyHandler.HandleKeyDown(e.Key);
e.Handled = handled;
}
}
protected override void OnKeyDown(KeyEventArgs e)
{
_keyHandler.HandleKeyDown(e, e.Modifiers);
}
private void MainForm_KeyDown(object sender, KeyEventArgs e)
{
_keyHandler.HandleKeyDown(e, ModifierKeys);
}