get-extent

Gets the current extent of the buffer's graphical representation.

The result is only valid when the buffer is viewed (see Basic Organization). For wx:media-edit% objects, calling this method may force the recalculation of location information if a maximum width is set for the buffer, even if the buffer currently has delayed refreshing (see refresh-delayed?).

• (send a-wx:media-buffer get-extent w h) -> void
      w : boxed inexact real or null
      h : boxed inexact real or null

  The w box is filled with the buffer's width, unless w is null. The h box is filled with the buffer's height, unless h is null.