Inspecting an object with inspect

Following is an example of inspecting a window w that has already been closed.

First create a window.

  ? (setq w (make-instance 'window))
  #<WINDOW "Untitled" #x583621>

Inspect it.

  ? (inspect w)
  #<INSPECTOR-WINDOW "#<WINDOW  #x583621>" #x452511>

An Inspector window opens to inspect w. The nil value in its wptr slot shows that the window w is closed.

Figure 4-2 An Inspector window showing components of a window

You can inspect this window and its components. For example, you could inspect the class of the window, #<STANDARD-CLASS WINDOW>.

Gettmg Started with MCL - 19 OCT 1996