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.