if(enable == TRUE)
{
- if(GTK_IS_COMBO_BOX(widget) || GTK_IS_COMBO_BOX_ENTRY(widget))
+ if(GTK_IS_COMBO_BOX(widget) && gtk_combo_box_get_has_entry(GTK_COMBO_BOX(widget)))
gtk_combo_box_set_active(GTK_COMBO_BOX(widget), 0);
else if(GTK_IS_SPIN_BUTTON(widget))
gtk_spin_button_set_value(GTK_SPIN_BUTTON(widget), 0);