Tk - Entry Widgets

Entry widgets are used to accept a single line of text as input. Getting user input is almost mandatory in all Tk applications. The syntax for entry widget is shown below −

entry entryName options

Options

The options available for the entry widget are listed below in the following table −

Sr.No.	Syntax & Description
1	-background color Used to set background color for widget.
2	-borderwidth width Used to draw with border in 3D effects.
3	-font fontDescriptor Used to set font for widget.
4	-foreground color Used to set foreground color for widget.
5	-pady number Sets the pady for the widget.
6	-relief condition Sets the 3D relief for this widget. The condition may be raised, sunken, flat, ridge, solid, or groove.
7	-textvariable varName Variable associated with the widget. When the text of widget changes, the variable is set to text of widget.
8	-width number Sets the width for widget.
9	-justify side Sets the justification side. The valid sides are left and right.
10	-show character Sets the character for secure entry.

A simple example using entry widget is shown below −

#!/usr/bin/wish

grid [entry .myEntry -background red -foreground white -relief ridge -borderwidth 8
   -font {Helvetica -18 bold} -width 35 -textvariable myvariable -justify right ]
set myvariable "Hello World"

When we run the above program, we will get the following output −

An example for secure entry is shown below −

#!/usr/bin/wish

grid [entry .myEntry -background red -foreground white  -relief ridge -borderwidth 8
   -font {Helvetica -18 bold} -width 35 -textvariable myvariable -justify left -show "*"]
set myvariable "Hello World"

When we run the above program, we will get the following output −

tk_basic_widgets.htm