The pool not pay??? i´m mining for 12 hours and not receive coins..
Go to Help.
Click Debug Window.
This is the console where you will execute all commands.
Type this command to start mining your first block:
setgenerate true -1
If you want to use a specific number of CPU cores, instead of -1, type the number of cores.
You can type the following command to see the status of generation.
getmininginfo
It will take about +/- 10 minutes to mine your first block, depending on your computer hardware.