[Lazarus] issue 13429

[Bernd Mueller]

I played a little bit with this latest snapshot (r20762) under Ubuntu 
8.04/GTK2 and get a reproducible access violation, when I place the 
TCalendar component on an empty form and close Lazarus then without 
saving the changes.

TApplication.HandleException Access violation
   Stack trace:
   $08069753
   $0821BEDB  DELIVERMESSAGE,  line 3618 of 
/home/bernd/lazarus0927/lcl/interfaces/gtk/gtkproc.inc
   $08226239  GTKDESTROYCB,  line 1052 of 
/home/bernd/lazarus0927/lcl/interfaces/gtk/gtkcallback.inc
   $B79DBAEF
   $B79CE749
   $B79E2F7B
   $B79E4C0F
   $B79E4F59
   $B7BF1611
   $B7CF7721
   $B79D0D60
   $B7BF131E
   $B7BBCB02
   $B7B328A7
   $B7B331D0
   $B79DBAEF
   $B79CD069
TProject.UpdateUnitComponentDependencies checking designers ...
LAZARUS END - cleaning up ...
[TMainIDE.Destroy] A
[TMainIDE.Destroy] B  -> inherited Destroy... TMainIDE
[TMainIDE.Destroy] END


Regards, Bernd.