avoid crash if IsMaximized() is called before native widget is created, fixes #14052

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70733 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/gtk/toplevel.cpp b/src/gtk/toplevel.cpp
index 97b552687093f3a45cd3c49efacf17ca4391c929..d655fbad2e16c35d28d246cdcde348f91c545811 100644 (file)
--- a/src/gtk/toplevel.cpp
+++ b/src/gtk/toplevel.cpp
@@ -1285,7 +1285,9 @@ void wxTopLevelWindowGTK::Maximize(bool maximize)
 
 bool wxTopLevelWindowGTK::IsMaximized() const
 {
 
 bool wxTopLevelWindowGTK::IsMaximized() const
 {

-    GdkWindow* window = gtk_widget_get_window(m_widget);
+    GdkWindow* window = NULL;
+    if (m_widget)
+        window = gtk_widget_get_window(m_widget);

     return window && (gdk_window_get_state(window) & GDK_WINDOW_STATE_MAXIMIZED);
 }
 
     return window && (gdk_window_get_state(window) & GDK_WINDOW_STATE_MAXIMIZED);
 }