/// <summary>
/// Raises the Pressed event.
/// </summary>
/// <remarks>The Pressed event is executed asynchronously.</remarks>
protected virtual void OnPressed()
{
// Invoke these asychronously in case they're slow. (Testing revealed that Windows will reassert
// responsibility for the key stroke(s) if the hookcallback doesn't immediately return.)
foreach (EventHandler pressedEvent in Pressed.GetInvocationList())
{
pressedEvent.BeginInvoke(this, EventArgs.Empty, ar => ((EventHandler)ar.AsyncState).EndInvoke(ar), pressedEvent);
}
}
public override void BeforeDispose()
{
if (Pressed != null)
{
//Remove all Events associated to this control (That haven't been unsubscribed !)
foreach (Delegate d in Pressed.GetInvocationList())
{
Pressed -= (EventHandler)d;
}
}
}
public void RemoveHandlers()
{
if (Pressed != null)
{
foreach (var d in Pressed.GetInvocationList())
{
Pressed -= (ButtonEvent)d;
}
}
if (Released != null)
{
foreach (var d in Released.GetInvocationList())
{
Released -= (ButtonEvent)d;
}
}
}