Text area content limits?

[Jean-Yves_Pochez]

may be you could try to use this addon that could be faster

RTEdit 2.0 is out! The most powerful rich text control for Xojo

RTEdit has been updated to version 2.0. [Screenshot 2025-07-19 at 17.10.16] This major release represents several hundred hours of development to reach this milestone. RTEdit now includes every module maintained by the Quill 2.0 community and significantly modifies both Quill and its modules at the JavaScript layer to ensure an optimal user experience and a seamless workflow on macOS and Windows desktops. To get started, simply add the RTEdit class (960kb) to your project (no plugins or depe…