Provides a default style for all subsequent winio@ windows. FORMAT is the same as the first argument of winio@ but has no other arguments.
Its use is restricted to the following format codes:
- %fn Font name
- %bf Bold font
- %it Italic font
- %ul Underlined font
- %ts Text size (in the new form %ts[value] where value is a floating point number)
- %tc Text colour
- %fb Button font
- %ww Window style
- %sy Dialog style
- %es Escape key closes the window
A terminating ampersand (&) for continuation may be used but is not required.