| Understanding the GUI M-File 
 | The GUI M-file programs the GUI. This section describes the functioning of the GUI M-file, both the generated and user-written code. 
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| Managing GUI Data with the Handles Structure 
 | The handlesstructure provides easy access to all component handles in the GUI. In addition, you can use this structure to store all shared data required by your GUI.
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| Designing for Cross-Platform Compatibility 
 | This section discusses the settings (used by default with GUIDE) that enable you to make your GUI look good on different computer platforms. 
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| Types of Callbacks 
 | You can define callbacks in addition to that defined by the uicontrol Callbackproperty. This section discusses the types available and their applications.
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| Interrupting Executing Callbacks 
 | This section describes how the GUI programmer can control whether user actions can interrupt executing callbacks. 
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| Controlling Figure Window Behavior 
 | This section discusses how a GUI figure can block MATLAB execution and can be modal. 
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