[Overview][Constants][Types][Procedures and functions][Variables] Reference for unit 'video' (#rtl)

OldVideoBuf

Last written screen image.

Declaration

Source position: videoh.inc line 97

var OldVideoBuf: PVideoBuf;

Description

The OldVideoBufcontains the state of the video screen after the last screen update. The UpdateScreenfunction uses this array to decide which characters on screen should be updated, and which not.

Note that the OldVideoBufarray may be ignored by some drivers, so it should not be used. The Array is in the interface section of the video unit mainly so drivers that need it can make use of it.