




This function is the means to successfully return a value from the current dialog. Hence, it might be called from an OK button so that pressing the button would cause the dialog to return successfully, whilst the Cancel button would call the counterpart function abort-dialog.
If there is no current dialog then 
exit-dialog
 does nothing and returns 
nil
. If there is a current dialog then 
exit-dialog
 either returns non-
nil
 or does a non-local exit. Therefore code that depends on 
exit-dialog
 returning must be written carefully - see the discussion under abort-dialog for details.
(capi:display-dialog
(capi:make-container
(make-instance 'capi:text-input-pane
:callback-type :data
:callback 'capi:exit-dialog)
:title "Test Dialog"))
There is another example in the file 
examples/capi/dialogs/simple-dialog.lisp
.