"Jean-Christophe Berthon" <[EMAIL PROTECTED]> writes: > So in the case the child is doing computation while the father show progress > information and allow the user to stop the computation. I'm modifying the > memory of Gtk --> updating the value of progress bar and some labels and > status bar. Then is the memory duplicated? > If yes, how can I remove it fom the child, else (if no) then it is OK :-)
- Semantically and conceptually, all memory is copied in the child - In practice, the kernel doesn't copy it until you try to use it, as an optimization - You could free memory in the child, but that would force the kernel to actually copy the memory, which would be slow; also, it would be done via gtk_widget_destroy(), which is not allowed, because GTK will crash The rule to follow is: - You may not touch GTK widgets created in the parent in the child, in any way, it will not work You can't use a child process to directly update a progress bar widget in the parent. End of story. It won't work. You have to do something like have the child send progress information to the parent via a pipe. A good book for this kind of thing is "Beginning Linux Programming" from Wrox Press. Havoc _______________________________________________ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list
