Unit 'streamex' Package
[Overview][Constants][Classes][Index] [#fcl]

TWindowedStream

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Provide a window on another stream.

Declaration

Source position: streamex.pp line 308

type TWindowedStream = class(TOwnerStream)

public

  constructor Create();

  

Initialize a new instance of TWindowedStream.

  destructor Destroy; override;

  

Destroy the TWindowedStream instance.

  function Read(); override;

  

Read data from the stream.

  function Write(); override;

  

Read data to the stream.

  function Seek(); override;

  

Reposition the stream.

end;

Inheritance

TWindowedStream

  

Provide a window on another stream.

|

TOwnerStream

|

TStream

|

TObject

Description

TWindowedStream is a TStream descendent that can be used to provide a window on the data of another stream. The position and size of the window can be determined in the constructor, and the stream will behave as a normal stream. The actual reading (or writing) will happen on the source stream.

If the source stream has some limitations (e.g. no Seek) then the TWindowedStream will inherit these limitations.

The TWindowedStream will keep track of the last position it used, and will attempt to restore it if it was modified between calls to Read and Write.

See also

TStream

TWindowedStream.Create

  

Initialize a new instance of TWindowedStream.


Documentation generated on: Jul 20 2024