In the Classic days, if you wanted to use a window that wasn't frontmost, you could click anywhere on it to bring it to the front.Mac OS X introduced a feature called "click-through" where certain controls, like the "traffic-light" buttons in the window title, would work even for background windows. Applications can also make other controls, or even the entire window, work with click-through. To make things a little confusing, in older versions, click-through was off by default for Carbon apps, but on by default for Cocoa apps.
Some people (including myself) never got used to click-through; if you too wish to have more control over what happens when you click on a background window, Klicko may solve your problem.
Klicko is a simple Cocoa application. It doesn't hack the system, other applications, inject code or do anything magic. You can run it in the Dock or in the menu bar. Follow the link and
free download Klicko now.
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