While developing OSX App in Xcode you may want your Apps Window Controller should be without either close, minimise & resize button or all, Here is how to do it easily within Xcode.
Assumption: I assume you are using Storyboards while developing app in Xcode.
Step 01: Select Storyboard in left panel ‘Project Navigator’,
Step 02: In Document Outline Select Window Controller Scene > Window Controller > Window (Your App Name Window)
Step 03: In right panel while Window Controller Scene is selected choose fourth tab from left i.e. Attributes Inspector
Step 04: Under Controls section uncheck Close, Minimise & Resize checkbox.
Result: After you ‘Run’ your app on your Mac those unchecked buttons should have disabled and removed from title bar.
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