Tk - Images

The image widget is used to create and manipulate images. The syntax for creating image is as follows −

image create type name options

In the above syntax type is photo or bitmap and name is the image identifier.

Options

The options available for image create are listed below in the following table −

Sr.No. Syntax & Description
1

-file fileName

The name of the image file name.
2

-height number

Used to set height for widget.
3

-width number

Sets the width for widget.
4

-data string

Image in base 64 encoded string.

A simple example for image widget is shown below −

#!/usr/bin/wish

image create photo imgobj -file "/Users/rajkumar/Desktop/F Drive/pictur/vb/Forests/
   680049.png" -width 400 -height 400 
pack [label .myLabel]
.myLabel configure -image imgobj

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

Image Example

The available function for image are listed below in the following table −

Sr.No. Syntax & Description
1

image delete imageName

Deletes the image from memory and related widgets visually.
2

image height imageName

Returns the height for image.
3

image width imageName

Returns the width for image.
4

image type imageName

Returns the type for image.
5

image names

Returns the list of images live in memory.

A simple example for using the above image widget commands is shown below −

#!/usr/bin/wish

image create photo imgobj -file "/Users/rajkumar/images/680049.png"
   -width 400 -height 400 
pack [label .myLabel]
.myLabel configure -image imgobj
puts [image height imgobj]
puts [image width imgobj]
puts [image type imgobj]
puts [image names]
image delete imgobj

The image will be deleted visually and from memory once "image delete imgobj" command executes. In console, the output will be like the following −

400
400
photo
imgobj ::tk::icons::information ::tk::icons::error ::tk::icons::
warning ::tk::icons::question
Advertisements