From ef75677e543b5a0b231d3bdfb6d055b58f56a5a8 Mon Sep 17 00:00:00 2001
From: Bill Somerville <g4wjs@classdesign.com>
Date: Sun, 15 Mar 2015 13:16:41 +0000
Subject: [PATCH] Don't attempt to lookup empty calls in CALL3.TXT

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5057 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
---
 mainwindow.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/mainwindow.cpp b/mainwindow.cpp
index b5d769e1d..80b4de7c0 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -2212,6 +2212,10 @@ void MainWindow::genStdMsgs(QString rpt)                       //genStdMsgs()
 void MainWindow::lookup()                                       //lookup()
 {
   QString hisCall=ui->dxCallEntry->text().toUpper().trimmed();
+  if (hisCall.isEmpty ())
+    {
+      return;
+    }
   ui->dxCallEntry->setText(hisCall);
   QFile f {m_dataDir.absoluteFilePath ("CALL3.TXT")};
   if (f.open (QIODevice::ReadOnly | QIODevice::Text))