ECL Planes — Format and Content

This appendix describes the format and contents of the different data planes in the ECL presentation space model. Each plane represents a distinct aspect of the host presentation space, such as its character contents, color specifications, field attributes, and so on. The ECL::GetScreen methods and others return data from the different presentation space planes.

Each plane contains one byte per host presentation space character position. Each plane is described in the following sections in terms of its logical contents and data format. The plane types are enumerated in the ECLPS.HPP header file.