[Qt-interest] New to QT - Beginners questions

[Jens Saathoff]

  Hi!

I'm new to QT and want to discover it a bit. I've downloaded the version 
4.6.3 with QtCreator for Windows.
I'm not new to gui-stuff at all, so my questions in a list for short 
answers.

1. I'm using QTCreator with QTDesigner to design my windows. The 
generator generates an "ui_mainwindow.h" for example. In this header is 
a method "setupUI()" where all the sub-components are instantiated.
So far so good. But how to use it? ui->mycomponent does not work at all. 
Must i create a new pointer in my mainwindoe-header and point it to 
ui->mycomponent in my mainwindow-constructor to call it in my other 
mainwindow's methods?
Does QT remove the subcomponents from memory if the parentwindow was 
deleted? Or is it necessary to delete every subcomponent?

2. I've read about the SDK for mobile devices (Symbian, Maemo, Windows 
Mobile). Can i just create one code-base for all and compile it for each 
platform?

That's all. Please excuse my stupid questions. I'm new to QT. I'll buy a 
book this week.

Thank you very much.

-- 

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