Show printing dialogue

[Satz Klauer <satzklauer googlemail com>]

Hi,

currently I'm using following code to initialise for printing:

GtkPrintOperation *op;

op = gtk_print_operation_new();
gtk_print_operation_set_allow_async(op,TRUE);
gtk_print_operation_set_n_pages(op, 1);
gtk_print_operation_set_unit (op,GTK_UNIT_POINTS);
g_signal_connect (op, "draw_page", G_CALLBACK(draw_page), NULL);
gtk_print_operation_run (op, GTK_PRINT_OPERATION_ACTION_PRINT,NULL, NULL);

This works fine with default printer and its default settings. But how
can I tell GTK to open a print dialogue where user can choose a
different printer and change print parameters?

Thanks!