how to include different modules in an application while using QtCreator4.7.4?

[bharat0991]

thanx santosh sir......but i have one more query and it's just that i have installed Qt4.7.4 in my laptop,but i think it's not correctly installed,should i uninstall all my other C++ and java compilers before install Qt (because i think they all have same type minGW files).
Sir it is because when i run QtAssistant or QtDesigner or any web application , they are not running properly or i can say that they are not running at all.
Or if u can suggest where to download Qt software that run correctly.

thanx sir,
Bharat Soni

[ChrisW67]

thanx santosh sir......but i have one more query and it's just that i have installed Qt4.7.4 in my laptop,but i think it's not correctly installed,should i uninstall all my other C++ and java compilers before install Qt (because i think they all have same type minGW files).

No.

Sir it is because when i run QtAssistant or QtDesigner or any web application , they are not running properly or i can say that they are not running at all.

Diagnose the fault. Don't just guess. We cannot help you unless you provide information more detailed than "It does not work".

Or if u can suggest where to download Qt software that run correctly.

http://qt.nokia.com/downloads
There is no official release of Qt 4.7.4.