void RaisePointerMove(object sender, PointerEventArgs e)
{
if (PointerMove != null)
PointerMove(sender, e);
}
void RaisePointerUp(object sender, PointerEventArgs e)
{
if (PointerUp != null)
PointerUp(sender, e);
}
void RaisePointerDown(object sender, PointerEventArgs e)
{
if (PointerDown != null)
PointerDown(sender, e);
}
