Quote Originally Posted by Charvi View Post
Whether its 2006 or 2012, I believe writing code for a custom slots is not supported in Qt Designer.
Nobody said anything about writing code for custom slots. UI class is not about writing any code, it's about connecting signals to slots (existing or not). The slots have to be implemented in appropriate classes. I don't see how it's related to your usecase. I think you are missing a point on how Designer works. If you promote one class (say QPushButton) into another (say MyCustomButton) that adds some signals and slots to its base class, you still have to provide that class in your final binary code and that's where you'll implement those missing slots. Designer doesn't allow you to create custom classes, it only allows to marshall instances of them. However you call your "custom ui tool", it will have to work exactly the same way.