If the NSButton is not enabled, the mouseDown: and mouseUp: behave as expected (so when the mouse is pushed down, the mouseDown: is called, and when it is released, the mouseUp: is called) However...

I am learning about NSControl. I am aware that NSCell has begun its road to deprecation in OS X 10.10 Yosemite, and so I'd rather not use an API that is going away. Also, the NSControl Class Refere...

Does anybody know why NSControl's isEnabled has been removed while setEnabled: is still working?

I have a custom NSTextField, where I'm implementing some rounded corners. Pressing the "TAB" key does not go to the next NSTextField (or selectable control) in the window. Weird. Why would it do t...

NSRuleEditor looks like a pretty powerful class and it looks like stuff like iTunes Smart Playlists or Finder Smart Folders are using it. (I reckon it should be called NSSmartRuleEditor...) But is...

I'm trying to find a method that monitors the text of NSTextField for changes. I tried the delegate method of -(void)controlTextDidChange:(NSNotification *)obj but it only works when the user types...

View-based NSTableViews seem to have just the standard behavior, where, in order to make a text field inside the table the first responder, the user has to either double click or to single click an...

I have a clear button in my Mac OS app. When the button is pressed, it clears all the values of the form and resets the NSPopUpButton to the first item. The question is how do I change the NSPopUp...

I implemented the following delegate method for NSTextField to add autocompletion support: - (NSArray *)control:(NSControl *)control textView:(NSTextView *)textView completions:(NSArray *)words ...