DialogProlog

DialogProlog

is an option for Dialog that can give an expression to evaluate before the dialog starts.

Details

  • You must use a delayed rule of the form DialogProlog:>expr to prevent expr from evaluating prematurely.
  • Expressions given by DialogProlog are evaluated after symbol values are localized and before any expression given as the argument of Dialog is evaluated.

Examples

Basic Examples  (1)

Enter a dialog, first printing out the stack:

In[1]:=
Click for copyable input
Out[1]=

Return from the dialog:

In[2]:=
Click for copyable input

See Also

Dialog  $Epilog  DialogSymbols

Tutorials

Introduced in 1991
(2.0)