GUI programming study materials?

Found the GUI programming bit difficult to grasp. Looking for some good materials/books/lecture_videos/advice for learning this. 开发者_StackOverflow社区I am interseted in learning Java(swing),Qt, pyQt....

Have you checked any of the online documentations Java, Qt?

Pick any one of these, download the SDK, build the default gui application (just an empty window, typically), and then keep adding buttons, input fields, etc. until you can do what you want to do. Appeal to the demos and documentation as need be. I can only speak from experience regarding Qt, which I have found (as an indie coder) to be fantastic in every way. Rich demos and excellent documentation, a good form designer.