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-rw-r--r--src/corelib/x11/fpg_netlayer_x11.pas4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/corelib/x11/fpg_netlayer_x11.pas b/src/corelib/x11/fpg_netlayer_x11.pas
index b328378d..463eee8e 100644
--- a/src/corelib/x11/fpg_netlayer_x11.pas
+++ b/src/corelib/x11/fpg_netlayer_x11.pas
@@ -1,7 +1,7 @@
{
fpGUI - Free Pascal GUI Toolkit
- Copyright (C) 2006 - 2010 See the file AUTHORS.txt, included in this
+ Copyright (C) 2006 - 2014 See the file AUTHORS.txt, included in this
distribution, for details of the copyright.
See the file COPYING.modifiedLGPL, included in this distribution,
@@ -690,6 +690,8 @@ var
bytes_after: culong;
begin
Result := False;
+ if (AWindow = 0) or (AProperty = 0) then
+ Exit;
XGetWindowProperty (FDisplay, AWindow, AProperty, 0, MaxInt, TBool(False), XA_ATOM, @atomtype, @format, @nitems,
@bytes_after, @Atoms);