diff options
Diffstat (limited to 'gr-qtgui/include/gnuradio/qtgui/sink_f.h')
| -rw-r--r-- | gr-qtgui/include/gnuradio/qtgui/sink_f.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/gr-qtgui/include/gnuradio/qtgui/sink_f.h b/gr-qtgui/include/gnuradio/qtgui/sink_f.h index 0e8004b1ed..a37117177e 100644 --- a/gr-qtgui/include/gnuradio/qtgui/sink_f.h +++ b/gr-qtgui/include/gnuradio/qtgui/sink_f.h @@ -47,8 +47,22 @@ namespace gr { * spectrogram (waterfall), and time domain plots. The plots may be * turned off by setting the appropriate boolean value in the * constructor to False. + * + * Message Ports: + * + * - freq (input): + * Receives a PMT pair: (intern("freq"), double(frequency). + * This is used to retune the center frequency of the + * display's x-axis. + * + * - freq (output): + * Produces a PMT pair with (intern("freq"), double(frequency). + * When a user double-clicks on the display, the frequency + * that the cursor is on is used to retune the x-axis scale + * to recenter onto the clicked frequency. A message + * containing the new frequency is also produced and can be + * used by other blocks to update their frequency setting. */ - class QTGUI_API sink_f : virtual public block { public: |