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Browse Prior Art Database

Display Line Spacing

IP.com Disclosure Number: IPCOM000049268D
Original Publication Date: 1982-Apr-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Kuecker, WA: AUTHOR [+2]

Abstract

The CRT displays for word processor systems are either less than a full page display (25 lines) or a full page display (greater than 50 lines). On the smaller display, the operator views the document being created or revised in the format that it would print except where lines may be double or triple spaced. If the double or triple spacing were to be displayed, only a small amount of the text could be viewed with the result that the operator would not have a clear picture of the document. On the other hand, with the full page display, the operator can view more of the document at one time. Therefore, it would be ideal to view the document with proper line spacing to get a true picture of how the document would print.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 61% of the total text.

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Display Line Spacing

The CRT displays for word processor systems are either less than a full page display (25 lines) or a full page display (greater than 50 lines). On the smaller display, the operator views the document being created or revised in the format that it would print except where lines may be double or triple spaced. If the double or triple spacing were to be displayed, only a small amount of the text could be viewed with the result that the operator would not have a clear picture of the document. On the other hand, with the full page display, the operator can view more of the document at one time. Therefore, it would be ideal to view the document with proper line spacing to get a true picture of how the document would print. If the double or triple spacing were displayed, then it would also be desirable to move the cursor vertically from one text line to the next with only one keystroke, bypassing the blank line spacing lines.

The Display Access Method (DAM) is the software program that is used by all of the system's applications to format their data stream into the display's refresh buffer for viewing on the screen. The unformatted data stream contains formatting parameters, such as left and right margin, pitch, and line spacing. These formatting parameters are detected by the DAM and saved when formatting the data stream into the refresh buffer. For every screen line, the DAM saves in memory the format data for that line including the line spacing ...