do-edit-operation

Performs a generic edit command.

• (send an-editor do-edit-operation op recursive? time) -> void
      op : symbol in '(undo redo clear cut copy paste kill select-all insert-text-box insert-pasteboard-box insert-image)
      recursive? = #t : boolean
      time = 0 : exact integer

  The op argument must be a valid edit command, one of:

  • 'undo -- undoes the last operation
  • 'redo -- undoes the last undo
  • 'clear -- deletes the current selection
  • 'cut -- cuts
  • 'copy -- copies
  • 'paste -- pastes
  • 'kill -- cuts to the end of the current line, or cuts a newline if there is only whitespace between the selection and end of line
  • 'select-all -- selects everything in the editor
  • 'insert-text-box -- inserts a text editor as an item in this editor; see also on-new-box .
  • 'insert-pasteboard-box -- inserts a pasteboard editor as an item in this editor; see also on-new-box .
  • 'insert-image -- gets a filename from the user and inserts the image as an item in this editor; see also on-new-image-snip .

  If recursive? is not #f, then the command is passed on to any active snips of this editor (i.e., snips which own the caret).

  See Cut and Paste for a discussion of the time argument. If time is outside the platform-specific range of times, an exn:application:mismatch exception is raised.