private void OnHidEvent(object sender, HidEvent e)
{
if (this.HidDataReceived == null ||
this.window == null ||
this.window.Dispatcher == null)
{
return;
}
this.window.Dispatcher.BeginInvoke((Action) delegate
{
this.HidDataReceived(sender, e);
});
}
public void OnHidEventRepeat(HidEvent hidEvent)
{
/// Generic HID repeats generated using timer go through here.
/// Broadcast our events
this.OnHidEvent(this, hidEvent);
}
/// <summary>
/// Process a WM_INPUT message.
/// </summary>
/// <param name="message"></param>
public void ProcessInput(ref Message message)
{
if (message.Msg != Contants.WM_INPUT)
{
// We only process WM_INPUT messages
return;
}
var hidEvent = new HidEvent(message);
hidEvent.DebugWrite();
if (!hidEvent.IsValid)
{
Debug.WriteLine("Skipping HID message.");
return;
}
/// We want to repeat only a single event at a time.
/// Any other event will interrupt the current repeat.
if (this.ManageRepeats && hidEvent.IsGeneric)
{
// Discard all outstanding repeats, though we should only ever have only one
for (int i = this.hidEvents.Count - 1; i >= 0; i--)
{
this.hidEvents[i].Dispose();
this.hidEvents.RemoveAt(i);
}
/// Add our newly created event to our repeat list
/// TODO: instead of a list we could now have a single event since we only support one repeat at a time
this.hidEvents.Add(hidEvent);
}
else if (hidEvent.IsKeyboard)
{
hidEvent.HasModifierShift = !hidEvent.IsModifier && this.HasModifierShift;
hidEvent.HasModifierControl = !hidEvent.IsModifier && this.HasModifierControl;
hidEvent.HasModifierAlt = !hidEvent.IsModifier && this.HasModifierAlt;
hidEvent.HasModifierWindows = !hidEvent.IsModifier && this.HasModifierWindows;
// We are dealing with a keyboard event
if (hidEvent.IsButtonDown)
{
HidEvent previous;
if (this.keyDownEvents.TryGetValue(hidEvent.KeyId, out previous))
{
/// This key is already pushed down
/// Increment our repeat count
hidEvent.RepeatCount = previous.RepeatCount + 1;
/// Discard our previous instance
previous.Dispose();
}
// Add or update our key in our dictionary
this.keyDownEvents[hidEvent.KeyId] = hidEvent;
}
else if (hidEvent.IsButtonUp)
{
HidEvent previous;
if (this.keyDownEvents.TryGetValue(hidEvent.KeyId, out previous))
{
// Key was released just make sure we track that by removing it
previous.Dispose();
this.keyDownEvents.Remove(hidEvent.KeyId);
}
}
}
// Broadcast our events
// Filter out keyboard repeats unless otherwise specified.
// Only keyboard repeats coming from drivers come through here.
if (this.ManageRepeats || !hidEvent.IsRepeat)
{
this.OnHidEvent(this, hidEvent);
}
}
