On Sun, Jun 03, 2007 at 12:28:03PM +0200, Szymon Ząbkiewicz wrote: > I'm am new to gtk+ and I try to write a simple application, I need to > read a double from an entry, I've already written a parsing > *char->double function
Is it really necessary to write yet another floating point number parser? You have a whole range of functions from atof and strtod to sscanf to g_ascii_strtod() available. > but I can't even read from the entry using > gtk_editable_get_chars because I get Segmentation Fault. I don't know > what is the reason for this, so I'll post parts of the code so that > you could help me in finding the bug: > > ... The function signature... > void calculate_cb(GtkWidget *widget, GdkEvent *event, gpointer data) ...does not match the prototype of the callback > g_signal_connect(G_OBJECT(main_window->calc_btn), "clicked", > G_CALLBACK(calculate_cb), main_window); GtkButton::clicked has no GdkEvent* argument http://developer.gnome.org/doc/API/2.0/gtk/GtkButton.html#GtkButton-clicked as it is not an event signal. Looking at the backtrace with gdb and looking at the values you expected the function to get, you could see calculate_cb() got main_window as its second argument, not third, which could be a sufficient hint to check the function signatures -- just an advice for the future... Yeti -- http://gwyddion.net/ _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
