Add new API

src/QGCApplication.cc

@@ -772,3 +772,13 @@ MavManager* QGCApplication::getMavManager()
 {
     return _pMavManager;
 }
+
+void QGCApplication::showToolBarMessage(const QString& message)
+{
+    MainWindow* mainWindow = MainWindow::instance();
+    if (mainWindow) {
+        mainWindow->getMainToolBar()->showToolBarMessage(message);
+    } else {
+        QGCMessageBox::information("", message);
+    }
+}

src/QGCApplication.h

@@ -107,6 +107,9 @@ public:
     /// MavManager accessor
     MavManager* getMavManager();
     
+    /// Show a non-modal message to the user
+    void showToolBarMessage(const QString& message);
+    
 public slots:
     /// You can connect to this slot to show an information message box from a different thread.
     void informationMessageBoxOnMainThread(const QString& title, const QString& msg);