On Tue, Mar 06, 2012 at 10:07:16AM -0900, Christopher Howard wrote: > Hi. I've installed the api documentation from the source code for both > gtk+ and glib, but I can't seem to find an api description of > g_signal_connect().
http://developer.gnome.org/gobject/stable/gobject-Signals.html#g-signal-connect > ---------- > g_signal_connect (G_OBJECT (button[0]), "draw", > G_CALLBACK (draw_callback), NULL); > ---------- > > Could somebody please explain two things: > > 1) What is the purpose of the string in the second position in the > parameter list? That is the signal name – the same as listed in Signals section in the description of each object. > 2) What is the purpose of the fourth parameter slot, with the NULL in > it? Can other options go there? It is a pointer that the callback function will get as its last argument. You can use it to pass additional data to the callback. Yeti _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
