Codejock Developer Community : Leaking GDI objects http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 14 Jun 2026 21:02:52 +0000 Thu, 26 Mar 2009 11:08:37 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=13777 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[Leaking GDI objects : We have now fixed this issue by...]]> http://forum.codejock.com/forum_posts.asp?TID=13777&PID=47188&title=leaking-gdi-objects#47188 Author: PhilM
Subject: 13777
Posted: 26 March 2009 at 11:08am

We have now fixed this issue by using the FRAME versions of these objects. Must be a problem with the way Openedge/Progress loads and destroys things.]]> Thu, 26 Mar 2009 11:08:37 +0000 http://forum.codejock.com/forum_posts.asp?TID=13777&PID=47188&title=leaking-gdi-objects#47188 <![CDATA[Leaking GDI objects : When we load the command bars...]]> http://forum.codejock.com/forum_posts.asp?TID=13777&PID=47042&title=leaking-gdi-objects#47042 Author: PhilM
Subject: 13777
Posted: 24 March 2009 at 11:24am

When we load the command bars object without doing anything with it, it creates 21 GDI font objects and when deleted only clears up 5 of them so it is leaking 16 GDI font objects every time it is loaded and deleted again. Probably another problem with Openedge but thought I would mention it anyway, in case anbody knows an answer. Here is the Openedge code which causes this leak:-
 
DEFINE VAR vcmdbar AS HANDLE NO-UNDO.  
DEFINE VAR chcmdbar AS COM-HANDLE NO-UNDO.
DEFINE VAR stat AS LOG NO-UNDO.
DEFINE FRAME vframe.
  
create control-frame vCmdBar assign
    frame = FRAME vFrame:HANDLE
    name = "CommandBars":u
    HEIGHT-PIXELS = 1
    WIDTH-PIXELS = 1
    hidden = NO
    sensitive = YES.
   
assign 
    chCmdBar = vCmdBar:com-handle
    stat     = chCmdBar:LoadControls( "cmdbar.wrx" , "CommandBars":u).
DELETE WIDGET vcmdbar.
 
Also if you set the visual theme to office2003 it will leak an extra 2 GDI bitmaps and 2 GDI DC's.
 
This also occurs with the Docking pane object but that only leaks 12 GDI font objects.
 
If anybody has any solutions to this it would a great help as this means our screen will use up the GDI resources if it is opened a lot of times, OK the limit per process is 10000 on my PC so with 1 command bar and 2 docking panes I only leak 40 objects each time which means I would have to run it 250 times in one session before it will crash but this isn't very good practice.
 
Thanks
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