EncodingsComboBox
Description:
[ CCode ( has_construct_function = false ,  type = "GtkWidget*" ) ]
public EncodingsComboBox (bool save_mode)
  public EncodingsComboBox (bool save_mode)
Creates a new encodings combo box object.
 If save_mode is false, it means that the combo box is used for loading a content (e.g. a file), so the row
      "Automatically Detected" is added. For saving a content, the encoding must be provided.
Parameters:
| save_mode | 
           whether the combo box is used for saving a content.  | 
      
Returns:
| 
           a new EncodingsComboBox object.  |