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Visual Component Library
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programming VCL A application framework library for
VCL was originally designed for Delphi but is now also used
for C++Builder. This replaces OWL Object Windows Library
as Borland's Windows C++ framework of choice. VCL
encapsulates the C-based Win32 API into a much easier to
use, object-oriented form. Like its direct rival,
classes to create Windows programs.
The VCL component class can be inherited to create new VCL
components, which are the building blocks of Delphi and
C++Builder applications. VCL components are somewhat in
competition with ActiveX controls, though a VCL wrapper can
be created to make an ActiveX control seem like a VCL
component.