From 8d27e1d4ec53a0888491dd394139e484e2fcbc8a Mon Sep 17 00:00:00 2001
From: Ansgar Becker <anse@heidisql.com>
Date: Sun, 13 Jan 2019 13:38:55 +0100
Subject: [PATCH] Avoid EAccessViolation when pressing F5 too quickly. See
 https://www.heidisql.com/forum.php?t=26327

---
 source/main.pas | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/main.pas b/source/main.pas
index df21c58b..f9130f41 100644
--- a/source/main.pas
+++ b/source/main.pas
@@ -6440,7 +6440,7 @@ begin
     menuTreeCollapseAll.Enabled := False;
     menuTreeOptions.Enabled := False;
   end;
-  if ActiveConnection.Parameters.IsMySQL then begin
+  if (ActiveConnection <> nil) and (ActiveConnection.Parameters.IsMySQL) then begin
     Version := ActiveConnection.ServerVersionInt;
     actCreateView.Enabled := actCreateView.Enabled and (Version >= 50001);
     actCreateRoutine.Enabled := actCreateRoutine.Enabled and (Version >= 50003);