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Diffstat (limited to 'gr-qtgui/lib/sink_c_impl.cc')
-rw-r--r--gr-qtgui/lib/sink_c_impl.cc13
1 files changed, 7 insertions, 6 deletions
diff --git a/gr-qtgui/lib/sink_c_impl.cc b/gr-qtgui/lib/sink_c_impl.cc
index ba34eaaa32..77f87c1e0c 100644
--- a/gr-qtgui/lib/sink_c_impl.cc
+++ b/gr-qtgui/lib/sink_c_impl.cc
@@ -63,7 +63,8 @@ namespace gr {
d_center_freq(fc), d_bandwidth(bw), d_name(name),
d_plotfreq(plotfreq), d_plotwaterfall(plotwaterfall),
d_plottime(plottime), d_plotconst(plotconst),
- d_parent(parent)
+ d_parent(parent),
+ d_port(pmt::mp("freq"))
{
// Required now for Qt; argc must be greater than 0 and argv
// must have at least one valid character. Must be valid through
@@ -75,9 +76,9 @@ namespace gr {
// setup output message port to post frequency when display is
// double-clicked
- message_port_register_out(pmt::mp("freq"));
- message_port_register_in(pmt::mp("freq"));
- set_msg_handler(pmt::mp("freq"),
+ message_port_register_out(d_port);
+ message_port_register_in(d_port);
+ set_msg_handler(d_port,
boost::bind(&sink_c_impl::handle_set_freq, this, _1));
d_main_gui = NULL;
@@ -328,8 +329,8 @@ namespace gr {
{
if(d_main_gui->checkClicked()) {
double freq = d_main_gui->getClickedFreq();
- message_port_pub(pmt::mp("freq"),
- pmt::cons(pmt::mp("freq"),
+ message_port_pub(d_port,
+ pmt::cons(d_port,
pmt::from_double(freq)));
}
}