From:	Henri Ossi <henri DOT ossi AT mail DOT htk DOT fi>
Newsgroups:	comp.os.msdos.djgpp
Subject:	File reading
Date:	Mon, 26 Jan 1998 12:28:01 +0200
Organization:	Telecom Finland News Service
Lines:	35
Message-ID:	<34CC6531.A6869055@mail.htk.fi>
Reply-To:	henri DOT ossi AT mail DOT htk DOT fi
NNTP-Posting-Host:	pc2006.public.htk.fi
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Hi.
I've made a fractal program, and It can produce 24bit images on the
screen (cool :)
Now I'm planning to make it save the image to a .TGA file.

I downloaded the TGA file specification, but I have one problem.
How can I

1)read 8bits from a file
2)write 8bits to a file

Char is 16bit long, right?
So, fgetch reads 16bits (word), but I have to be able to read & write
8bits.

How is this done?

I looked from the source code of allegro, and there the TGA file reader
was using "pack_getc()" -function
to get bytes from the packet file, but I coudln't find the code of the
function.

I've been thinking about this kind of solution, could it work?

c = "read the word from the file";
byte1 = c >> 8;
byte2 = (c <<8)>>8;


But I still can't write bytes with that one...

Thanks for your answers.

-Henri Ossi

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