On Thu, Jun 10, 2010 at 01:31:33PM +0200, Michael T. wrote:
> In case anyone's interested I solved the problem with a little hack.
> I create the progress bar this way:
>
> progBar = gtk_progress_bar_new();
> gtk_box_pack_start (GTK_BOX (vboxGr), GTK_PROGRESS_BAR(progBar), FALSE,
> FALSE, 0);
> gtk_widget_show (progBar));
> progressBarHack(progBar);
>
> the function progressBarHack() looks like this:
>
> void progressBarHack(GtkWidget* bar)
> {
> progBar = bar;
> }
>
> progBar is a global variable. I get an assertion error when I try to work
> with it outside the function where the bar was created.
> When I use my hack, which does nothing except some pointer work, everything
> works fine.
> I don't know why the hack was needed because I've worked with several widgets
> with no problems at all. But this thing works.
Hello, this all looks like utter voodoo. You have probably a trivial
bug somewhere (elsewhere) in your code, maybe some
extern/static/initialization confusion? Or you overwrite the stack and
calling progressBarHack() causes a change of the layout so that you
overwrite a less sensitive place now? Anyway, it is recommended fix to
avoid global variables, they are evil, and externs are double-evil. But
perhaps if you show a minimal *complete* example that exhibits the error
some will be able to help you. Or, likely, you will find the root cause
while trying to extract the bad behaviour into a simple example...
Yeti
_______________________________________________
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
