[[Property:title|Magnify]]
[[Property:weight|-2]]
[[Property:uuid|2c50fccc-2481-6f2d-d223-b4b246398636]]
[[Image:magnify|MAGNIFY]]  <br/>
<br/>

==Compiling==

To compile the example: 
* Launch EiffelStudio. 
* Click '''Add project'''
* Browse to ''$ISE_EIFFEL\examples\wel\magnify\''. 
* Choose ''magnify.ecf''
* Choose the location where the project will be compiled, by default the same directory containing the configuration file. 
* Click '''OK'''. 

==Running==
After launching the application, you will see a window displayed with a similar appearance to the one above. Selecting "Quick reference..." from the "Help" menu will display the full instructions for using this application. 
==Under the Hood==

In order to be able to control the output of the sample, <code>MAIN_WINDOW</code> redefines many features from [[ref:libraries/wel/reference/wel_frame_window_chart|WEL_FRAME_WINDOW]] . The feature <code>draw_zoom_rectangle</code> is used to display the output and <code>on_menu_command</code> handles the notifications sent to the window when a <code>menu_selection</code> has been made.

This sample contains the following classes: 
* <code>APPLICATION_IDS</code>
* <code>MAIN_WINDOW</code>
* <code>MAGNIFY_DEMO</code>