blink-caret

Tells the snip to blink the selection caret. This method is called periodically when the snips's editor's display has the keyboard focus, and the snip has the editor-local focus.

The drawing context and snip's position in drawing context coordinates are provided.

• (send a-snip blink-caret dc x y) -> void
      dc : dc<%> object
      x : real number
      y : real number