LispWorks CAPI User Guide > 9 Defining Interface Classes

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9.5 Controlling the interface title

You can add dynamic control of window titles using the functions illustrated in the section.

Firstly we add a counter to the title of new demo windows:

(defvar *demo-title-counter* 0)
 
(defmethod capi:interface-extend-title ((self demo) title)
  (format nil "~A - ~D"
          (call-next-method)
          (incf *demo-title-counter*)))
 
(capi:display (make-instance 'demo))

Then we specify common prefix for all interface window titles:

(capi:set-default-interface-prefix-suffix
 :prefix "My " :suffix nil )
 
(capi:display (make-instance 'demo))

 


LispWorks CAPI User Guide (Windows version) - 22 Dec 2009

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