Hello! Wysota Sir,
Thanks for helping me out. It worked with qt Qt3.3.3, but i think am not sure of how to implement it with Qt4.3.4. Like i tired Ui_Form::setWindowTitle(QString(......)..);
where Form is the objectname of my application, but it shows me following error: -

Sample.cpp:9:error: setWindowTitle() is not a member of Ui_Form.

I have: -
sample.ui, sample.h, sample.cpp, main.cpp, & finally Ui generated ui_sample.h .
files in the folder.And: -
ui_sample.h file is included in sample.h,
sample.h is included in sample.cpp & main.cpp.

May be i am wrong in implementing it!!!!

Please help me out!!!!

Thanks again in advance.