EntryBuffer 
  Create a new GtkEntryBuffer object.
Optionally, specify initial text to set in the buffer.
Return
A new GtkEntryBuffer object.
Parameters
initialChars 
initial buffer text
nInitialChars  
number of characters in @initial_chars, or -1
constructor(gtkEntryBufferPointer: <Error class: unknown class><<Error class: unknown class>>)(source)