Tk – Basic Widgets
Basic are common widgets available in almost all Tk applications. The list of available basic widgets is given below in Tcl basic widgets − Sr.No.Widgets & Description1LabelWidget for displaying single…
Tk – Widgets Overview
The basic component of Tk widgets overview is a Tk-based application is called a widget. A component of widgets is also sometimes called a window for widgets overview, since, in…
Tk – Special Variables
In Tk, we classify some of the variables as special variables and they have a predefined usage/functionality. The list of special variables is listed below. Sr.No.Special Variable & Description1tk_libraryUsed for…
Tk – Environment
Generally, all Mac and Linux mac come with Tk pre-installed environment. In this Tk environment case, it's not available or you need the latest version, then you may need to…
Tk – Overview
Tk refers to Toolkit and it provides cross platform GUI widgets, which help you in building a Graphical User Interface for overview. In Tk It was developed as an extension…
Tcl – Regular Expressions
The "regexp" command is used in Tcl regular expressions to match a regular expression in Tcl. A regular expression in Tcl is a sequence of characters that contains a search…
Tcl – Built-in Functions
Tcl provides a number of built-in functions (procedures) for various operations. Tcl includes below listed built-in functions − Functions for list handling.Functions for string handling.Functions for array handling.Functions for dictionary handling.Functions for File I/O handling.Functions for creating namespaces and packages in Tcl Built-in…
Tcl – Error Handling
Error handling in Tcl is provided with the help of error handling and catch commands in Tcl. The syntax for each of these commands is shown below. Error syntax error message info code In…
Tcl – File I/O
Tcl supports file I/O handling with the help of the built in commands open, read, puts, gets, and close. A file I/O represents a sequence of bytes, does not matter…
Tcl – Namespaces
Namespace is a container for set of identifiers that is used to group variables and procedures. Namespaces are available from Tcl version 8.0. Before the introduction of the namespaces, there…