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Line 1: '''Component Library for Cross Platform''' ('''CLX)''') (pronounced clicks), is a cross-platform visual component-based framework for developing [[Microsoft Windows]] and [[Linux]] applications.<ref name="Blong-1"/><ref name="LBNL-1"/> It iswas developed by [[Borland]] for use in its [[Kylix programming tool\|Kylix]], [[Delphi (programming language)\|Delphi]], and [[C++ Builder]] software development environment. Its aim was to replace the popular [[Microsoft Foundation Classes]] with [[Visual Component Library]] (VCL). CLX was based on [[Qt (framework)\|Qt]] by [[Nokia]]{{Citation needed\|reason=MasterD6 source says Trolltech not Nokia, but Norwegian is concordant\|date=October 2018}}.<ref name="MasterD6"/>{{rp\|196}} The [[Application programming interface\|API]] of CLX almost completely followed VCL. It was envisioned that existing applications using VCL would be recompiled with CLX. However, due to ~~lacklustre~~lackluster performance on Windows, subtle differences from VCL, and bugs, it ~~didn't~~did not become the expected successor to VCL. ~~Commercial~~The commercial failure of Kylix stopped further development of CLX. In terms of [[Object-oriented programming\|object-oriented]] approach, CLX forms an object hierarchy where the TObject class serves as the ''[[Superclass (computer science)\|base class]]''. All other classes inherit or indirectly inherit the TObject class. Today, many concepts that were defined with CLX have been implemented with the [[Lazarus Component Library]] (LCL) for the [[Lazarus (IDE)\|Lazarus]] IDE. By docking to different [[widgetset]]s, the LCL is able to support an even larger spectrum of platforms including [[Mac OS X]] and [[Android (operating system)\|Android]]. ==References== {{Reflist\|2\|refs= <ref name="MasterD6">{{Cite book\|title=Mastering Delphi 6\|chapter=Chapter 6: Controls: VCL Versus VisualCLX\|first=Marco\|last=Cantù\|publisher=Wiley\|isbn=978-0-782-15278-4}}</ref>