==Purpose==
ListenTo is a concept in {{UBIK}} Studio, that allows to connect and therefore cascade controls in an arbitrary mannner. The basic idea is, that each control can have a "Master" control, meaning another control to which selection changes it is constantly listening. This master is referred as the its ListenTo-Source.
==Example==
Let's assume a [[Class Browser]] shall be the master control and we want an [[Object Editor]] to always allow us to edit the currently selected object of this Class Browser.
# Open a ClassBrowser Class Browser in an area of {{UBIK}} Studio# Open an ObjectEditor Object Editor in another area# Drag an object from the ClassBrowser Class Browser with the left mouse button and drop it on the header of the tab where the Object Editor is in. The header text should now display a "+" sign and the text of the dropped object.