Similar to the other addAction but extracts the target from the method,
which must be of the form 'target.method:optional parameter', where
target has been previously added to the list of targets of the group.
Creates a new ControlElement with a given name
This is a special feature that is used by LauncherApplet, so that
if the name coincides with a given one, a Frame becomes a Panel,
so that it can be captured!
Creates a new ControlElement that wrapps an existing object
If the object is not of the right class it will print a warning
and ignore the object provided.
Creates a new ControlElement that wrapps an existing object
If the object is not of the right class it will print a warning
and ignore the object provided.