[Jlulian]

There is a Printf method in the Dashboard object ( Dashboard::GetInstance()->Printf("Hello World!"); ), but just plain printf prints to the Serial Console.
Connect your computer to the cRIO's serial port with a Null modem cable, Then you can view the console output with any terminal emulator you choose (the one in WindRiver, HyperTerminal, PuTTY).

(The Serial Port is 9600 baud 8 data bits no flow control/handshaking 1 stop bit with default settings (or 9600 8N1) )