Re: [gtk-list] Global Variables

[Paul Bunyk <paul pbunyk physics sunysb edu>]

 This is what glade GUI builder does and I like this alot. E.g., you can 
iterate over "all" sub-widgets (which cared to declare them "public" in glade 
terminology) anbd change their appearancei with a single loop (I'm not sure if 
this can be done right now, but in principle it is nice information to keep).

Paul


In a program I'm working on, I have about 20 or so widgets that need to
be accessible my multiple functions in multiple files. I've been using
global variables, but I recently saw the gtk_object_{get,set}_data functions
used instead.

For example, instead of having LocalEntry a global variable, the author
used

	gtk_object_set_data(GTK_OBJECT(main_window), "LocalEntry", entry);

to store a pointer to the widget, and

	entry = gtk_object_get_data(GTK_OBJECT(main_window), "LocalEntry");

to retrieve it.

Is there any actual benefit to doing this?