KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q45906: No Extended ASCII in SCREEN 4 on Olivetti/AT&T 6300

Article: Q45906
Product(s): See article
Version(s): 4.00b 4.50
Operating System(s): MS-DOS
Keyword(s): ENDUSER | SR# S890606-97 | mspl13_basic
Last Modified: 22-JUN-1989

It has been reported that when using QuickBASIC Version 4.00b or 4.50,
characters in the extended ASCII character set (codes 128 to 255) are
not visible in SCREEN 4 on an AT&T 6300. However, the extended
characters are visible in SCREEN 0 (text mode).

This may be a hardware limitation. Microsoft is researching this
problem and will post new information as it becomes available.

Code Example
------------

The following code example displays blanks in SCREEN 4, but displays
the correct extended characters in SCREEN 0:

SCREEN 4     'works for SCREEN 0
FOR i%=128 TO 255
   PRINT CHR$(i%)
NEXT i%

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.