display_qt − a Gnu Radio Example gr-qtgui
Display a GUI using QT of a sine wave in noise.
Example program instantiates a GNU Radio flow graph using a sine wave source, a noise source, and gr-qtgui blocks. This new (in version 3.7.10) example shows how to build a C++ only QT based application.
http://gnuradio.squarespace.com/examples/tag/qt