Retrieves the current length of the text in entry.
This is equivalent to getting entry's #GtkEntryBuffer and calling gtk.entry_buffer.EntryBuffer.getLength on it.
the current number of characters in #GtkEntry, or 0 if there are none.
Retrieves the current length of the text in entry.
This is equivalent to getting entry's #GtkEntryBuffer and calling gtk.entry_buffer.EntryBuffer.getLength on it.