private void KeyValidationTextBox(object sender, KeyEventArgs e)
{
e.Handled = true;
var modifiers = Keyboard.Modifiers;
var key = e.Key;
ushort keyCode = (ushort)System.Windows.Input.KeyInterop.VirtualKeyFromKey(key);
MSG l_Msg;
ushort l_Scancode;
PresentationSource source = e.InputSource;
var l_MSGField = source.GetType().GetField("_lastKeyboardMessage", BindingFlags.NonPublic | BindingFlags.Instance);
l_Msg = (MSG)l_MSGField.GetValue(source);
l_Scancode = (ushort)(l_Msg.lParam.ToInt32() >> 16);
if (modifiers == ModifierKeys.None &&
(key == Key.Delete || key == Key.Back || key == Key.Escape))
{
hotKey = null;
KeyTextBox.Text = "";
return;
}
if (key == Key.System)
{
key = e.SystemKey;
}
if (key == Key.LeftCtrl ||
key == Key.RightCtrl ||
key == Key.RWin ||
key == Key.LeftAlt ||
key == Key.LeftShift ||
key == Key.RightAlt ||
key == Key.RightShift ||
key == Key.LWin ||
key == Key.OemClear ||
key == Key.Apps ||
key == Key.Clear)
{
return;
}
if (modifiers != ModifierKeys.None)
{
if (modifiers == ModifierKeys.Shift || modifiers == ModifierKeys.Control)
{
hotKey = new Hotkey(key, modifiers, keyCode, l_Scancode, true);
}
else
{
return;
}
}
else
{
hotKey = new Hotkey(key, modifiers, keyCode, l_Scancode, false);
}
KeyTextBox.Text = hotKey.ToString();
}