Editing Installing Qt SDK from scratch

Installing open source Qt with compiler and IDE for Windows may be done by following the steps below.
==Installation steps==
#Navigate to http://www.qt.io/download-open-source/ and download the latest Open Source Qt installer.
#Launch the installer and make sure that a Qt library (4.x or 5.x), Qt Creator and MinGW has been selected <br/>[[File:Qt installer win.png]]
#Click next to begin installation
#All done! Launch Qt Creator

==Using an example project==
===Opening and building===
#Open the project (.pro) file from Qt Creator
#If the project is opened first time, a following style dialog will show up <br/>[[File:Qt open project.png]]
#Check that correct Qt version has been ticked. In this case we installed MinGW compiler, so choose it. Untick all other Qt versions. 
#Click Configure project. 
#Now the project is open and may be browsed and edited <br/>[[File:Qt_build_project.png]]
#Hit '''Ctrl+B''' to build a project or '''Ctrl+R''' to run it<br/>
{{tip|If something goes wrong in configuration and project refuses to compile even if the code is fine, you may start over by deleting the ''somefile.pro.user'' file from the project folder and Qt Creator will show up the configuration dialog again.}}
===Editing===
To create new controls in the [[GUI]], expand Forms from the projects pane and doubleclick the .ui file. In this example we add a button to the GUI:
#Double click '''.ui''' file to open a UI editor <br/>[[File:Qt edit ui.png]]
#Drag'n'drop a '''Push button''' from left side list to the UI
#Double click the new button to the change the text from "Push button" to anything you want on it. Also rename the object from the right side pane ('''objectName''' line).
#Select the button and right-click it to and choose '''Go to slot...'''
#Choose '''clicked()''' from the list and click Ok.
#A new function will be created to the code. The code will be executed on when the button is clicked.