private void Client_PreviewKeyUp(object sender, KeyEventArgs e)
{
Key key = (e.Key == Key.System ? e.SystemKey : e.Key);
switch (key)
{
case Key.LeftShift:
case Key.RightShift:
modifier = modifier & ~modifier_t.shift;
shiftRect.Fill = new SolidColorBrush(Colors.White);
e.Handled = true;
break;
case Key.LeftCtrl:
case Key.RightCtrl:
modifier = modifier & ~modifier_t.ctrl;
ctrlRect.Fill = new SolidColorBrush(Colors.White);
e.Handled = true;
break;
case Key.LeftAlt:
case Key.RightAlt:
modifier = modifier & ~modifier_t.alt;
altRect.Fill = new SolidColorBrush(Colors.White);
e.Handled = true;
break;
default:
break;
}
}
private void HorizontalToggleSwitch_Checked(object sender, RoutedEventArgs e)
{
shiftRect.Fill = new SolidColorBrush(Colors.White);
ctrlRect.Fill = new SolidColorBrush(Colors.White);
altRect.Fill = new SolidColorBrush(Colors.White);
modifier = modifier_t.none;
this.PreviewKeyDown += Client_PreviewKeyDown;
this.PreviewKeyUp += Client_PreviewKeyUp;
capturing = true;
}
private void Client_PreviewKeyDown(object sender, KeyEventArgs e)
{
Key key = (e.Key == Key.System ? e.SystemKey : e.Key);
switch (key)
{
case Key.LeftShift:
case Key.RightShift:
modifier = modifier | modifier_t.shift;
shiftRect.Fill = new SolidColorBrush(Colors.DeepSkyBlue);
e.Handled = true;
break;
case Key.LeftCtrl:
case Key.RightCtrl:
modifier = modifier | modifier_t.ctrl;
ctrlRect.Fill = new SolidColorBrush(Colors.DeepSkyBlue);
e.Handled = true;
break;
case Key.LeftAlt:
case Key.RightAlt:
modifier = modifier | modifier_t.alt;
altRect.Fill = new SolidColorBrush(Colors.DeepSkyBlue);
e.Handled = true;
break;
default:
break;
}
if (!e.Handled)
{
int convertedKey = KeyInterop.VirtualKeyFromKey(key);
byte[] buffer = new byte[1 + sizeof(int)];
buffer[0] = (byte)modifier;
BitConverter.GetBytes(IPAddress.HostToNetworkOrder(convertedKey)).CopyTo(buffer, 1);
Stream.BeginWrite(buffer, 0, 1 + sizeof(int), new AsyncCallback(SendToServer), Stream);
e.Handled = true;
}
}
public KeyData(modifier_t m, int k)
{
modifier = m; key = k;
}
