show error messages

13 years ago · 9ee946c797
1 changed files with 7 additions and 2 deletions
--- a/lib/gui_qt.py
+++ b/lib/gui_qt.py
@ -996,10 +996,15 @@ class ElectrumWindow(QMainWindow):
        try:
            n = int(e.text())
        except:
+            QMessageBox.warning(self, _('Error'), _('Invalid Value'), _('OK'))
            return

-        self.wallet.change_gap_limit(n)
-        self.update_receive_tab()
+        r = self.wallet.change_gap_limit(n)
+        if r:
+            self.update_receive_tab()
+        else:
+            QMessageBox.warning(self, _('Error'), _('Invalid Value'), _('OK'))
+