How to include Curl library ?

[SGaist]

Have a look the qmake manual for LIBS & INCLUDEPATH.

That depends on what compiler you are currently using not Qt Creator itself.

[flex567]

should i first make .lib file?

[SGaist]

It depends on how you installed libcurl

[flex567]

I didn't install it I just downloaded the .zip file from theirs site.

[SGaist]

What does it contain ?

[flex567]

!http://i59.tinypic.com/s5yb9l.png()!

[SGaist]

Then you need to build it

[flex567]

how can I build it and what must I include in a build?

[SGaist]

You have the documentation inside the curl folder, follow it for your installed compiler

[flex567]

Do I have to make from that folder static library or dynamic library or something else?

[SGaist]

That's up to you and how you would like to use it