help-menu:about

This method is called when the about menu-item of the help-menu menu is selected. If help-menu:about is bound to #f instead of a procedure, the about menu item will not be created.

• (send a-drscheme:frame:basics-mixin help-menu:about item evt) -> void
      item : (instance (derived-from menu-item%))
      evt : (instance control-event%)

  Opens an about box for DrScheme.