global-to-local

Converts the given coordinates from top-level display coordinates (usually canvas coordinates) to editor location coordinates. The same calculation is performed by dc-location-to-editor-location.

The result is only valid when the editor is displayed (see Basic Organization).

See also local-to-global.

• (send an-editor global-to-local x y) -> void
      x : boxed real number or #f
      y : boxed real number or #f

  The x box is filled with the translated x-coordiante of the value initially in x, unless x is #f. The y box is filled with the translated x-coordiante of the value initially in y, unless y is #f.