TTextField

Ttextfield is a term used to describe a user interface control that provides a single-line text input field. In libraries and frameworks that adopt a prefix-based naming convention (for example, those inspired by the Delphi/VCL style), a class or component named TTextField or similar may be used. Other ecosystems refer to the same concept more generically as TextField, QLineEdit, or an input element of type text. While the exact API varies, the core purpose remains consistent: allow users to enter, edit, and submit short strings of text.

A ttextfield typically exposes a text value that can be read or set programmatically. It often supports a placeholder or hint to indicate expected input and may include properties such as maximum length, read-only or enabled state, and text alignment. Many implementations also allow styling of appearance (font, color, borders) and provide built-in behaviors like auto-completion or input masking through additional options or derived components.

Common events include onChange or onTextChanged (fired when the content changes), onFocus and onBlur (focus handling), and onSubmit or onEnter (submit action). Accessibility considerations usually involve associating a label, providing descriptive placeholders, and ensuring keyboard navigation works predictably, with support for screen readers.

In summary, a ttextfield is a standard UI element for single-line text entry, with framework-specific naming and APIs but a common role across programming environments: to capture and manage user-entered text in forms and dialogs.