Download of rtControls 1.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this Mac application is Devulder Software. We recommend checking the downloaded files with any free antivirus. RtControls for Mac relates to Developer Tools.
From the developer:
rtControls is a simple application that allows you to generate full source code for cocoa controls for use with Mac OS X. This app includes support for 30 controls (button, slider, tableview, view, etc.). Also, you can save the result on disk, or on the clipboard.
You may want to check out more software for Mac, such as Objective Basic or Epsilon, which might be related to rtControls.