Category utility functions. This class provides static methods to initialise categories from an INI file or
resource file, and to externalise to an INI file. It has a private constructor and destructor, making it impossible
to create instances of this class.
Provides functions to help with drawing arrows and option buttons.
Utility class to give a central spot to retrieve the path and name of the document file. All methods are static
and the class should never be instantiated.
This static utility class have methods to handle focus transitions and finding focused controls.
Reserves places in an application's custom colour palette for important system colours.