From 1b00f064f5f10692af63d786bb9d27ea1356d946 Mon Sep 17 00:00:00 2001
From: Stanislaw Halik <sthalik@misaki.pl>
Date: Sun, 26 Jul 2015 06:45:31 +0200
Subject: pt: preventing crashing on camera manipulation

---
 ftnoir_tracker_pt/ftnoir_tracker_pt_dialog.cpp | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

(limited to 'ftnoir_tracker_pt/ftnoir_tracker_pt_dialog.cpp')

diff --git a/ftnoir_tracker_pt/ftnoir_tracker_pt_dialog.cpp b/ftnoir_tracker_pt/ftnoir_tracker_pt_dialog.cpp
index 07ee4f1b..12d108ac 100644
--- a/ftnoir_tracker_pt/ftnoir_tracker_pt_dialog.cpp
+++ b/ftnoir_tracker_pt/ftnoir_tracker_pt_dialog.cpp
@@ -106,13 +106,12 @@ void TrackerDialog_PT::startstop_trans_calib(bool start)
 
 void TrackerDialog_PT::poll_tracker_info()
 {
-    if (tracker)
+    CamInfo info;
+    if (tracker && tracker->get_cam_info(&info))
     {
         QString to_print;
-        CamInfo info;
         {
             // display caminfo
-            tracker->get_cam_info(&info);
             to_print = QString::number(info.res_x)+"x"+QString::number(info.res_y)+" @ "+QString::number(info.fps)+" FPS";
         }
         ui.caminfo_label->setText(to_print);
-- 
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