Re: [Freedos-devel] ANNOUNCE: Edit 0.82
Hi!
24--2004 20:23 [EMAIL PROTECTED] (Joe Cosentino) wrote to FreeDOS
Devel [EMAIL PROTECTED]:
Ah, yes, I see: Displays the maximum number of lines possible for the
monitor you are using means set highest mode. This is very easy operation:
just select 8x8 font (INT10/1112 on EGA/VGA; on CGA you anyway can't change
count of lines).
JC If you'd like to submit a code snippet Arkady, please do
Pseudocode:
__O\_/_\_/O__
bool EVGApresent () {
/* To see if you are running on an EGA, use INT 10H 12H BL=10H.
If on return, BL4 then the EGA BIOS is not present,
so you must be running on a CGA or MDA.
*/
call_int_10h (AH=12h, BL=10h);
return BL 4;
}
if (sethighmode EVGApresent ()) {
call_int_10h (AX=1112h, BL=0); /* activate 8x8 font */
}
_
O/~\ /~\O
There may be useful to preserve current video state and restore it on exit.
In this case:
__O\_/_\_/O__
unsigned restoremode = 0;
if (sethighmode EVGApresent ()) {
restoremode = (word FAR*) MK_FP (0, 485h);
if (restoremode = 8) restoremode = 0x1112; /* 8x8 font */
else if (restoremode = 14) restoremode = 0x; /* 8x14 font */
elserestoremode = 0x1114; /* 8x16 font */
call_int_10h (AX=1112h, BL=0); /* activate 8x8 font */
}
onexit:
unsigned
if (restoremode != 0) {
call_int_10h (AX=restoremode, BL=0); /* reactivate previous font */
}
_
O/~\ /~\O
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Re: [Freedos-devel] ANNOUNCE: Edit 0.82
Arkady V.Belousov wrote: Hi! 23--2004 20:12 [EMAIL PROTECTED] (Joe Cosentino) wrote to FreeDOS Devel [EMAIL PROTECTED]: JC 4) As of right now, /H DOES NOT WORK. It does not work, has not worked and JC unless someone wants to write an algorithm to determine the maximum number JC of lines a screen can handle (not which one it is currently set at), it'll JC just sit there. Help doesn't work?! And how it relates to maximum number of lines? Or I don't understand something? In MS-DOS , EDIT /H means use the maximum possible number of lines available for the current display adaptor (43 for EGA, 50 for VGA). -uso. --- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl ___ Freedos-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/freedos-devel
Re: [Freedos-devel] ANNOUNCE: Edit 0.82
JC 4) As of right now, /H DOES NOT WORK. It does not work, has not worked and JC unless someone wants to write an algorithm to determine the maximum number JC of lines a screen can handle (not which one it is currently set at), it'll JC just sit there. Help doesn't work?! And how it relates to maximum number of lines? Or I don't understand something? SNW In MS-DOS , EDIT /H means use the maximum possible number of lines SNW available for the current display adaptor (43 for EGA, 50 for VGA). Ah, yes, I see: Displays the maximum number of lines possible for the monitor you are using means set highest mode. This is very easy operation: just select 8x8 font (INT10/1112 on EGA/VGA; on CGA you anyway can't change count of lines). If you'd like to submit a code snippet Arkady, please do Joe --- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl ___ Freedos-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/freedos-devel
