DrawDialog
DialogPtr theDialog ; identifies dialog window DrawDialog draws the contents of a dialog within its enclosing window dialog box automatically.
theDialog is the address of a DialogRecord . It identifies the dialog to be
displayed.
Notes: DrawDialog might be used to draw a dialog that might never be drawn via event for a box containing information only.
The UpdtDialog function is similar, but is more efficient since it draws only that portion of theDialog that is currently uncovered.