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# Miscellaneous Classes

Useful classes not fitting into any other category.

Classes:

- QDoubleValidator (Range checking of floating-point numbers)
- QFileIconProvider (Icons for QFileDialog to use)
- QIconSet (Set of differently styled and sized icons)
- QIntValidator (Range checking of integers)
- QMenuData (Base class for QMenuBar and QPopupMenu)
- QMimeSource (An abstract piece of formatted data)
- QRangeControl (Integer value within a range)
- QRegExp (Pattern matching using regular expressions or wildcards)
- QSignal (Can be used to send signals without parameters)
- QUrl (Mainly an URL parser and simplifies working with URLs)
- QUrlInfo
- QUrlOperator (Common operations on URLs (get() and more))
- QValidator (Validation of input text)
- QVariant (Acts like a union for the most common Qt data types)
- Qt (Namespace for miscellaneous identifiers that need to be global-like)