The OpenCS startup window of the existing exist is raised when trying to
start a new instance. This is done by the new instance connection to the
existing instance's QLocalServer. Once the connection is established the
existing instance raises the startup window.
If another instance of OpenCS is started, then it will terminate. This
is done by creating a QLocalServer with a unique ID. If another
QLocalServer with the same ID attempts to be opened, then the creation
of the QLocalServer will fail and the application will terminate.
Qt recommends that the path location not be used when including a class.
Also, this is how other files include Qt classes in the OpenCS app. This
change is for consistency only.
Marc Zinnschlag
Marc Bouvier
graffy76