It is generally not advisable to rely on size() when the widget has not been shown yet.
sizeHint() can come close provided no other effects influence the window's size (e.g. the windowing system...
Java is a bad example in this context, because it lacked asynchronous I/O for a long time and a lot if its APIs are still blocking by default.
Qt, on the other hand, is primarily designed to be...
Qt Centre is a community site devoted to programming in C++ using the Qt framework developed at Digia.
If you have any problems with Qt or its usage, you can get help from the members of Qt community on our forum.
Don't forget to check out our links section for more Qt resources.
Qt is a cross-platform application and UI framework. Using Qt, you can write web-enabled applications once and deploy them across desktop, mobile and embedded operating systems without rewriting the source code.