gtk_adjustment_set_value(adj, CLAMP(value + page_size, lower, upper - page_size));
return TRUE;
case GDK_Page_Up: case GDK_KP_Page_Up:
gtk_adjustment_set_value(adj, CLAMP(value - page_size, lower, upper - page_size));
return TRUE;
gtk_adjustment_set_value(adj, CLAMP(value + page_size, lower, upper - page_size));
return TRUE;
case GDK_Page_Up: case GDK_KP_Page_Up:
gtk_adjustment_set_value(adj, CLAMP(value - page_size, lower, upper - page_size));
return TRUE;