TE Edit control is a feature-rich, robust, and time-tested RTF editor component. This advanced RTF component is available for .NET, Win32 (DLL and ActiveX), Win64 and Java environments. The .NET product is written completely using managed C# code with no dependence of a Win32 assembly. The Win32 and .Net products are available with complete DLL source.

Delphi and C++ Builder optical barcode recognition component.

uses ZBar bar code reader library
supports EAN-13/UPC-A, EAN-8, UPC-E, Code 39, Code 93, Code 128, Codabar, PDF417, GS1 DataBar, GS1 DataBar Expanded, Interleaved 2 of 5 and QR Code barcodes
available for Delphi/C++ Builder 5 - XE7 and Lazarus 1.2.6
source code included in full version
royalty free distribution in applications