FreeEsVCLComponents
A free library of modern, flicker-free VCL components for Delphi and C++Builder with transparency and visual style support.
What is FreeEsVCLComponents?
FreeEsVCLComponents is an open-source library of visual components for the Delphi and C++Builder VCL framework. It provides modern, high-quality replacements for standard controls like TPanel, TImage, and TSplitter, addressing long-standing VCL limitations such as screen flicker, poor transparency handling, and outdated appearance. The library enhances application UI with features like anti-flicker rendering, transparency support, visual style integration, and Windows 10-style controls.
Delphi and C++Builder developers building Windows desktop applications with the VCL framework who need modern, flicker-free UI components with improved visual quality and user experience.
Developers choose FreeEsVCLComponents for its comprehensive set of polished, professional-grade components that eliminate VCL's traditional flicker issues and offer excellent transparency support out of the box. Its unique selling point is providing direct, drop-in replacements for standard VCL controls with enhanced performance, modern styling, and features like 9-patch image support and built-in input validation.
Overview
Free ErrorSoft Components for Delphi (VCL) & EsVclCore lib
Use Cases
Best For
- Replacing standard VCL controls like TPanel, TImage, and TPaintBox with flicker-free, high-performance alternatives.
- Building modern Windows 10-style UIs with components like TEsSwitch and TEsActivityBar that mimic XAML controls.
- Implementing scalable UI elements using 9-patch images for raster graphics that maintain quality when resized.
- Adding input validation to edit controls with built-in regular expression support and visual indication.
- Creating transparent or visually styled interfaces with excellent transparency support and VCL skin compatibility.
- Developing high-DPI aware applications with native support for high-DPI displays from Delphi Berlin onward.
Not Ideal For
- Cross-platform Delphi projects using FireMonkey, as the library is strictly for the Windows-only VCL framework.
- Applications where minimizing binary size is critical, since adding this component library increases executable footprint.
- Teams reliant on extensive third-party VCL skinning engines beyond the built-in VCL styles support.
- Legacy codebases with deep customizations to standard VCL controls that might conflict with the library's overridden rendering methods.
Pros & Cons
Pros
All components eliminate screen flicker during updates, directly addressing a notorious VCL limitation highlighted in the README as a key feature.
Built-in transparency capabilities across controls enable modern UI effects without extra work, a noted improvement over standard VCL.
Includes TEsSwitch and TEsActivityBar that mimic XAML controls, providing up-to-date UI elements for contemporary application design.
TEsNinePatchImage allows scalable raster graphics without quality loss, essential for responsive interfaces, as emphasized in the component list.
Cons
The README specifies generating individual packages for each Delphi version, adding setup complexity and maintenance overhead for multi-IDE environments.
Beyond the README and PDF release notes, detailed usage guides or comprehensive examples are sparse, which may increase trial-and-error for developers.
Exclusively targets the VCL framework, making it unsuitable for FireMonkey or cross-platform development, a clear limitation in its scope.
Frequently Asked Questions
Related Projects
KastriCross-platform library for Delphi
liblclA common cross-platform GUI library, the core uses Lazarus LCL.
JPPackA collection of VCL/LCL components for Delphi/Lazarus - buttons, panels, LinkLabel, ProgressBar, ColorComboBox, ColorListBox, Timer and other
DelphiUCLThe new version of Delphi Universal Component Library
Found a gem we're missing?
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.