README

KingCalendar for Delphi

A fully-featured VCL calendar component library for Delphi 10.2 through 13, supporting Win32, Win64, and Win64x platforms. Open source under the MIT License.

Quick Install

Download and run the Windows installer — it detects every Delphi version on your machine, compiles the packages, and registers the components in each IDE automatically.

⬇ Download KingCalendarSetup.exe

Close the Delphi IDE before running the installer. An installation.log is written to the install folder if you need to troubleshoot.

Screenshots

Main Calendar	Popup Picker	Navigation Controls

Spinner, Combo & Label Controls	Drag & Drop

Components

All controls install directly into the Delphi IDE component palette.

Delphi Version Support

The installer reads the BDS.EXE build number to identify the exact Delphi sub-version and enable only the platforms that release supports.

Win64 Modern (Win64x) requires Delphi 12.1 or later. WinARM64EC requires Delphi 13.1 or later.

Manual Installation (Git Clone)

Use this method if you want the full source and prefer to manage builds yourself.

git clone https://github.com/K7LER/KingCal.git

1. In Delphi go to Tools → Options → Delphi Options → Library.
2. Add LIBD<ver>x64\RELEASE (and LIBD<ver>x32\RELEASE for 32-bit targets) to the Library Path.
3. Add the source\ folder to the Browsing Path.
4. Open the group project for your version, e.g. packages\13\D13All.groupproj.
5. Compile the runtime packages first:
   • KingCalendar370.dpk — base components + LiveBindings registration
   • KingCalendarDB370.dpk — database-aware components
6. Compile the design-time packages:
   • dclKingCalendar370.dpk — base component registration
   • dclKingCalendarDB370.dpk — DB component registration
7. Right-click each design-time package → Install.

Note: The DB components require both the base and DB packages. The installer handles this automatically.

See the Wiki for version-specific library folder names and detailed step-by-step instructions for each Delphi release.

Demo Projects

Five ready-to-compile demo projects are included for Delphi 10.2, 10.3, 10.4, and 13 under the Demos\ folder.

Key Features

• Full month-grid calendar with day selection, blocked days, flagged days, and per-cell color customization
• Nine built-in color sets (ColorSet1–ColorSet9) configurable at design or runtime
• High DPI and VCL Styles compatible
• Database-Aware Components — TDBKingCalendar, TDBKingDateSpin, TDBKingTimeSpin, TDBKingMDYSpin, TDBKingHMSpin, and TDBKingDateDialog bind directly to TDataSource/TDataField for dataset integration
• LiveBindings Support — All date/time components register observable members for Delphi's LiveBindings framework, enabling visual data binding in the designer
• Color bar overlays for visualizing multi-day events or ranges
• No external dependencies — pure Object Pascal, no third-party runtime required

Documentation

• Project Website — feature overview, screenshots, and install guide
• Wiki — full component reference, property/event/method listings, and code examples
• Documentation\kingcal30.rtf — original component reference guide (included in the install)

Contributing

Bug reports and pull requests are welcome. Please open an issue first for anything beyond a small fix.

• Open an issue
• Read the contributing guide

Version History

License

MIT License. See LICENSE for the full text.

Original component: Mark Lussier and AppVision © 1995–2000 Current maintainer: Lance Rasmussen — lancerasmussen@gmail.com

In June 2018, Mark Lussier gave Lance Rasmussen permission to open-source KingCalendar and publish it on GitHub.