1. RE: strange thing with put_screen_char()
Thank you Rob,
btw, I'm very interested about the speed of the differents ways to
display a line of text on screen, in text-mode (each char. has a
different color, so I can't use simply puts(1, txt) ).
Is put_screen_char(1,1, txt_with_attributes) faster than
for i=1 to n do
text_color(attributes[i])
position(1, i)
puts(1, txt[i])
end for
?? (I'm too lazy to make a little benchmark 
Gwen
2. RE: strange thing with put_screen_char()
Ok,I'll answer to myself : yes it's faster !
But...I saw put_screen_char() use poke() to write to the screen, do you
know how to write over an another char ? (like using bk_color(-1) in
some fonts packages), I don't know how to do that with poke. If I just
do that :
poke(#B8000, {'A',15})
poke(#B8000, {'O',4})
The second instruction will erase my white 'A' and put an red 'O' at the
place. Is there an attribute like "transparent background color" ?
Gwen
3. RE: strange thing with put_screen_char()
On Wed, 21 Mar 2001, Gwen wrote:
> But...I saw put_screen_char() use poke() to write to the screen, do you
> know how to write over an another char ? (like using bk_color(-1) in
> some fonts packages), I don't know how to do that with poke. If I just
> do that :
>
> poke(#B8000, {'A',15})
> poke(#B8000, {'O',4})
>
> The second instruction will erase my white 'A' and put an red 'O' at the
> place. Is there an attribute like "transparent background color" ?
No. The DOS characters are displayed from a character rom, you can't
easily change them. You can, however, use Jiri Babor's font.e program
to display characters of your own design. It should also be possible to
write a routine that would combine two of his characters to create a new one
before displaying it. This also gives you a wider range of font styles and
sizes. It does require graphics mode, however.
--
Regards,
Irv
4. RE: strange thing with put_screen_char()
I tried some text routines from Jiri, excellent !
Just one bad news for me, we can't print two char on the same place on
the screen in text mode without erasing the first one.
Bah, that's not very important
thanks for your help !
Gwen
5. RE: strange thing with put_screen_char()
----====008BB6D2 at _ at 36973.51596811@_@151E4
Hello Gwen,
Sounds like you are doing some stuff I was working on a couple
of months back. I used the folowing code (fragment) to make different
colored bouncing letters pass across colored backgrounds:
s=get_screen_char(y,x)
character=s[1]
backcolor=floor(s[2]/16)
textcolor=s[2]-backcolor*16
Hope that helps.
JOHN
----====008BB6D2 at _ at 36973.51596811@_@151E4
AA8OAAAAAAIB/w8BAAAAQwAAAAAAAACBKx+kvqMQGZ1uAN0BD1QCAAAAAEVVZm9ydW1AdG9waWNh
AAA5AAAAAAsAQDoBAAAAAwBxOgAAAAAeAPZfAQAAABMAAABFVWZvcnVtQHRvcGljYS5jb20AAAIB
AAADACYAAAAAAAsAKQAAAAAAAwAuAAAAAAADADYAAAAAAEAAOQCAQlUSELPAAR4AcAABAAAAKQAA
D7PAAQMAAIAIIAYAAAAAAMAAAAAAAABGAAAAABCFAAAAAAAACwADgAggBgAAAAAAwAAAAAAAAEYA
AAAAA4UAAAAAAAADAASACCAGAAAAAADAAAAAAAAARgAAAABShQAA8A4AAB4ABYAIIAYAAAAAAMAA
AABGAAAAADaFAAABAAAAAQAAAAAAAAAeAAuACCAGAAAAAADAAAAAAAAARgAAAAA3hQAAAQAAAAEA
AAAAAAAAHgAMgAggBgAAAAAAwAAAAAAAAEYAAAAAOIUAAAEAAAABAAAAAAAAAB4APQABAAAABQAA
AFJFOiAAAAAAAwANNP03AABo6g==
----====008BB6D2 at _ at 36973.51596811@_@151E4--
