Qt-4.3 Designer programming

[sharathgowder]

Hi, i am new to QT .Please give me example wi program using QT4.3 designer, with compiling steps and also how to use signals and slot in Qt4.3, should we must creat *.cpp and *.h file be created manually?,

[high_flyer]

Welcome to the forum and Qt.
You should really start by reading the docs, since they are very good, and most of your questions here are answered in the docs.

lease give me example wi program using QT4.3 designer

From Qt4, designer is only a UI design tool, you do not program with it.
About using designer, read the this.

with compiling steps

Do you mean general compiling C++, or Qt specific?
If you mean C++, then I would suggest that you let go of Qt for now, and learn C++ first.
If its Qt you mean, read this.

and also how to use signals and slot in Qt4.3,

Here you go.

should we must creat *.cpp and *.h file be created manually?,

What do you mean by that?
You have to code... Qt is a UI library, not a "autogen" tool....

Also, we have a very nice wiki, have a look there too.