+ gchar *a_name;
+ guint a_pid, a_ppid, a_cpu;
+ gulong a_birth_s, a_birth_ns;
+ gulong a_trace;
+
+ gchar *b_name;
+ guint b_pid, b_ppid, b_cpu;
+ gulong b_birth_s, b_birth_ns;
+ gulong b_trace;
+
+ gtk_tree_model_get(model,
+ it_a,
+ 0, &a_name,
+ 1, &a_pid,
+ 2, &a_ppid,
+ 3, &a_cpu,
+ 4, &a_birth_s,
+ 5, &a_birth_ns,
+ 6, &a_trace,
+ -1);
+
+ gtk_tree_model_get(model,
+ it_b,
+ 0, &b_name,
+ 1, &b_pid,
+ 2, &b_ppid,
+ 3, &b_cpu,
+ 4, &b_birth_s,
+ 5, &b_birth_ns,
+ 6, &b_trace,
+ -1);