Make notebook page active

["César Leonardo Blum Silveira" <cesarbs gmail com>]

Hello all

My software uses a GtkNotebook with two pages. I would like to make
the second page active when the program starts. I tried using the
following piece of code

gtk_notebook_set_current_page(GTK_NOTEBOOK(notebook), 1);

But it didn't actually work. Is there anything else I should do? Some
kind of refreshing?

Thanks,

César B. S.