signal callback delegate or function to connect
void callback(gtk.text_buffer.TextBuffer textBuffer)
textBuffer the instance the signal is connected to (optional)
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to BeginUserAction signal.
The ::begin-user-action signal is emitted at the beginning of a single user-visible operation on a #GtkTextBuffer.
See also: gtk.text_buffer.TextBuffer.beginUserAction, gtk.text_buffer.TextBuffer.insertInteractive, gtk.text_buffer.TextBuffer.insertRangeInteractive, gtk.text_buffer.TextBuffer.deleteInteractive, gtk.text_buffer.TextBuffer.backspace, gtk.text_buffer.TextBuffer.deleteSelection.