How to add mouse hover functionality in my eclipse application?

I have an eclipse application, written in a language similar to C. I want to add the tooltip information on my auto generated file, for example, I have my generated file :

// Comment Header for fast_user_action_rules.csd
//
// Action Rules

    // 'sorting the lsb'
    {
        0x0000, 0x0000, // 32-bit Data
        0x00020000,     // Repli/F开发者_开发知识库wd Port, Mod Rule
        0x01            // Action
    }

// End of fast_user_action_rules.csd

Now when I mouse hover onto the 0x0002000, the tooltip should show the information. Anyone knows how to achieve this? Your help is much appreciated. Thanks!

Read Eclipse FAQ How do I add hover support to my text editor?

Cheers, Max