This is documentation for Mathematica 6, which was
based on an earlier version of the Wolfram Language.
View current documentation (Version 11.2)


is an option to functions such as CreateDialog, which specifies whether the dialog that is created should be modal to the Mathematica front end.
  • With the default setting Modal->False, other windows can be used even when the dialog is open.
  • With Modal->True, no other Mathematica windows can be used until the dialog has been closed. If there is no mechanism for closing the dialog, Mathematica will therefore effectively freeze.
Create a modal dialog, which blocks operations in other open notebooks:
New in 6