demos::widget\_lib::trace2(3) perl/Tk Documentation demos::widget\_lib::trace2(3)

# [NAME](#NAME)

Tk::TraceText - Text contents defined by a traced variable.

# [SYNOPSIS](#SYNOPSIS)

```
 $tt = $parent->TraceText(-option => value, ... );
```

# [DESCRIPTION](#DESCRIPTION)

Create a new **TraceText** widget that is derived from the standard **Text** widget. Because it inherits all the base options and methods it behaves just like a **Text** widget. Additionally, **TraceText** adds a -textvariable option, which is a reference to a Perl scalar that defines the contents of the widget.

Based on the Tcl/Tk TracedText "overridden widget" by Kevin Kenny.

[**-textvariable**](#textvariable)

A scalar reference. The value of the variable defines the contents of the TraceText widget. Using the keyboard to insert or delete text changes the value of the variable, and changing the variable alters the contents of the TraceText widget.

# [METHODS](#METHODS)

Standard Text widget methods.

# [ADVERTISED SUBWIDGETS](#ADVERTISED_SUBWIDGETS)

None.

# [EXAMPLE](#EXAMPLE)

```
 my $tt = $mw->TraceText( -textvariable => \$scalar );
```

# [AUTHOR](#AUTHOR)

Stephen.O.Lidie@Lehigh.EDU

Copyright (C) 2003 - 2004, Steve Lidie. All rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

# [KEYWORDS](#KEYWORDS)

text, trace

2026-10-26 Tk804.036

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Document: Tk::demos::widget_lib::trace2(3pm) from perl-tk 804.036-r13 (Chainguard OS)
Source: https://github.com/eserte/perl-tk