How can I prevent the build window from showing in Sublime Text 2 whenever I make a build with Ctrl+B?
The default setting is in
You can either edit that, or add an override to your user settings (on OS X: Sublime Text 2 » Preferences » Settings – User or Cmd,).
Or you can set it programmatically in Sublime Text 3 with some added logic, eg. show on errors only.
open and edit
notice these two functions
More reading here.