Manual Reference Pages - VGA_OKTOWRITE (3)
vga_oktowrite - indicates whether the program has direct access to the SVGA
Indicates whether the program is in the console currently
visible on the screen, that is, whether it is OK to write
to video memory (if running in the background has been allowed
with the function above). Note that this is not entirely
safe, since a console switch interrupt may occur during a
video operation. It is best to avoid this function.
Usually your program will be suspended when it has no access to the
screen but see
for an alternative.
This manual page was edited by Michael Weller <firstname.lastname@example.org>. The
exact source of the referenced function as well as of the original documentation is
It is very likely that both are at least to some extent are due to
Harm Hanemaayer <H.Hanemaayer@inter.nl.net>.
Occasionally this might be wrong. I hereby
asked to be excused by the original author and will happily accept any additions or corrections
to this first version of the svgalib manual.
|Svgalib (>= 1.2.11) ||VGA_OKTOWRITE (3) ||27 July 1997 |
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