hi,
I need to execute an system command in QT-4.7.4 and i am unable to get how to execute and what classes to be used,
here is the command i need to use..

sprintf(str,"/sbin/udhcpc eth0 -T 5 -n");
system(str);

This is a code that i use in "C",
please help/guide me to execute the command in QT

thanks in advance,
rohith.g