GUIDE Callback Helper

This helper class gives easy access to callback event data in GUIs developed using GUIDE. Several Handle Graphics callback functions, such as the uicontrol's KeyPressFcn and the figure's WindowScrollWheelFcn, pass useful information through the event data argument. Unfortunately, this data is unavailable to GUIDE GUIs without additional programming. GUIDE Callback Helper aims to simplify the process of attaching to GUIDE GUIs callback functions that make use of the event data.