adding a library to my project and..how to use it?

[KillGabio]

hi guys i ve read tons of threads of this problem but i dont seem to get the right solution...

i ve downloaded the qextserialport-1.2 project. Next step i run the project with errors (says no executable found, of course because its not an app) but i get the files:

1. qextserialport.dll
2. libqextserialport.a

then i create a folder inside myappfolder and finally i modify my .pro file like this

INCLUDEPATH += "C:\Documents and Settings\home\Escritorio\Los taninos-killgabio\exrport-libraries"
 
LIBS += -L"C:\Documents and Settings\home\Escritorio\Los taninos-killgabio\exrport-libraries" -lqextserialport

INCLUDEPATH += "C:\Documents and Settings\home\Escritorio\Los taninos-killgabio\exrport-libraries"

LIBS += -L"C:\Documents and Settings\home\Escritorio\Los taninos-killgabio\exrport-libraries" -lqextserialport

To copy to clipboard, switch view to plain text mode 

what is the next step to follow? cause there are no .h files, or should i include all the .h files from the qextserialport project¨?

thanks a lot i ve started a month ago and i still cannot understand QT very much

greetings!

[ChrisW67]

Checkout and build the current qextserialport:
The "src" directory of the qextserialport source tree contains the include files: put this path in INCLUDEPATH
The "src/build" directory of the qextserialport source tree contains the library files: put this in the -L option of LIBS

If you have grabbed the obsolete version:
The "qextserialport-1.2win-alpha" directory of the qextserialport source tree contains the include files: put this path in INCLUDEPATH