Q50001: The Width of Text Is Carried between BASIC SCREENs If Possible

Article: Q50001
Product(s): See article
Version(s): 4.00 4.00b 4.50
Operating System(s): MS-DOS
Keyword(s): ENDUSER | SR# S891008-1 B_BasicCom | mspl13_basic
Last Modified: 12-DEC-1989

When switching from one SCREEN mode to another, the height and width
of the text in the first SCREEN mode will be maintained in the second
SCREEN mode if the height and width is supported by the second mode.

If the second SCREEN mode does not support the height and width of the
text used in the first SCREEN mode, then the height and width will
change to the default of the second.

Although the height and width of the text characters are maintained
across SCREEN modes when possible, the text itself is cleared.

This information applies to Microsoft QuickBASIC Versions 4.00, 4.00b,
and 4.50 for MS-DOS, to Microsoft BASIC Compiler Versions 6.00 and
6.00b for MS-DOS and MS OS/2, and to Microsoft BASIC PDS Version 7.00
for MS-DOS and MS OS/2.

The following sample program exhibits this behavior:

SCREEN 0
PRINT "80 X 25"        '80 X 25 is the default for screen mode 0.
SLEEP

SCREEN 1
PRINT "40 X 25"        'SCREEN 1 does not support the 80 X 25 text
SLEEP                  'format, so the format will be changed to
                       'SCREEN 1's default of 40 X 25.

SCREEN 0
PRINT "40 x 25"        'SCREEN 0 does support the 40 X 25 text
SLEEP                  'format, so the format that was used in
                       'SCREEN 1 is maintained when switching to
                       'SCREEN 0.

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.

Copyright Microsoft Corporation 1986-2002.