savetostream()

Комментарии

• vlad_galaxy

  October 2005 отредактировано 01:45

  TStream is abstract class
  Use TMemoryStream
• Andrew_Sh г.Минск

  October 2005 отредактировано 01:45

  dst написал:

  hi
  my code is :

  ---

  report:=Tsream.create;
  actionfrxReport.DesignReport;
  actionfrxReport.SaveToStream(report);

  ---

  and after the designer closes, I got a message
  
  'Abstract error'
  
  why?!

  TStream - абстрактный класс, поэтому нельзя создавать экземпляры этого класса.
  
  Вместо TStream используйте одного из наследников, например TMemoryStream.
  
  
  TStream is the abstract base class type for stream objects that can read from or write to various kinds of storage media, such as disk files, dynamic memory, and so on.
  ....
  As an abstract class, TStream cannot be instantiated.
  
• dst

  October 2005 отредактировано 01:45

  10Q
  it is working with Tmemorystream