<html> <head> <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> <meta http-equiv="CONTENT-TYPE" content="text/html; charset=UTF-8"> I have taken a break from programming over the festivities and have now turned my thoughts back to my program. With my GStreamer console based application, the program's main 'lined up all the gstreamer elements', set the ball rolling, and then went to g_main_loop_run which waited for interesting signals. I realise that there was a lot of multi-threading and other clever stuff going on, but what I had to write was impressively simple. Then I turned to look at my GUI interface and chose GTK as, seemingly, the best way to write my code. I notice that the main program lines up all the buttons I want on the screen, I have event handlers for when buttons are pressed and then I go to gtk_main() to wait for things to happen. My hang-up is that I don't know how to reconcile these two bits of code waiting. I think that I have read that gtk_main is a wrapper for g_main_loop_run, so there must be something from there that I need to incorporate into my main loop. Is there some sample code I can look at? <title></title> <meta name="GENERATOR" content="OpenOffice 4.0.0 (Win32)"> <style type="text/css">  </style> <div class="moz-cite-prefix">On 18/12/2013 11:30, Ian Davidson wrote: </div> <blockquote cite="mid:52B18759.6070603@blueyonder.co.uk" type="cite">Thanks Tim, You were right to guess that I was using Gtk+ 1.2. This was not a deliberate choice, but based on ignorance - I did not realise that there were any other flavours. I have now 'ported' my GUI to Gtk+3.0 and can make progress..Once again, thanks for your help. Ian On 17/12/2013 23:02, Tim Müller wrote: <blockquote type="cite">So, first of all, if I'm not mistaken your use of gtk-config implies that you are using an ancient version of Gtk+, namely Gtk+ 1.2. Is this correct? This would then also use an ancient GLib 1.2, which is not API/ABI compatible with modern GLib/Gtk applications, and you can't use GStreamer 1.0 (or 0.10 or 0.8) with GLib 1.2, only with GLib 2.0. But I might be mistaken about all of this of course. So in any case, make sure to use either Gtk+ 2.x or 3.x which both use GLib 2.x. Then what should work is: gcc -Wall foo.c -o foo $(pkg-config --cflags --libs gstreamer-1.0 gtk +-3.0) Cheers -Tim </blockquote> </blockquote> </body> </html>