Custom Magento Extension Enable and Disable by my custom admin module

Question

How can i control my Custom Magento Extension from admin panal

What is System.xml ?

To view data and most i want to enable and disable module by my custome admin site

i want my own functionality for this feature.

Answer 1

The only way to really disable your module is to change

<active>true</active>

to

<active>false</active>

in your app/etc/modules/foo.xml

If you want an admin account to be able to do it in the back-end, you can create a config option (with system.xml) to control your module. Although it's not exactly the same as disabling your module, you can make sure your module doesn't do anything by looking at the store config.