On Sat, 2007-04-07 at 16:54 -0700, ahti rahman wrote: > I am thinking about the following two designs to implement this: > (1) If the gui can receieve periodic event then this event handler > can query the server for the latest user/room list and the client can > update the GUI. Is there a way to ask for a periodic event from the > GTK GUI? Basically you are wondering how you can read from a socket and post the data into the gui somehow, correct? Several ways come to mind 1. Spawn a thread that uses conventional socket programming to poll or select for data. Then post this to the GUI using some form of IPC, such as a buffer synchronized with a counting semaphore[1]. Then have a tiemout on the gui that periodically checks the buffer for new data and does something with it. 2. Use giochannels to have the GTK main loop poll the socket for new data and then process the data in a normal callback (just as if it was an event). 3. Use a GLib-based library such as gnet[2] To get the GUI to periodically poll something, look at g_idle_add or g_timeout_add calls. > (2) The client periodically queries the server for updated user lists. > Once the client receives the list, client will display this list in > the gui.But, how do I display it in the gui once I have the user list > information? Can you not use normal GTK calls to do this? If you need instructions on how to do the GTK Treeview, see the gtk-demo program; it has example code for setting up the treeview. > > Any help on this is appreciated. Please let me know if you need any > further clarifications on my design. > > Thanks, > Ahti [1] http://en.wikipedia.org/wiki/Producer-consumer_problem [2] http://gnetlibrary.org _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
