Where to find the reference of dos.h for the c programming language?

Question

I'm looking for the reference/documentation of the dos.h API. (especially for an openwatcom specific version).

Where to get the documentation?

This header was used before Al Gore invented the Internet. This stuff used to be printed on paper. — Hans Passant, Apr 13 '11 at 23:28
Does something like [This](http://www.digitalmars.com/rtl/dos.html) help? — sverre, Apr 13 '11 at 21:34

score 3 · Accepted Answer · answered Apr 13 '11 at 21:36

3

One reasonable starting point would probably be the library documentation at OpenWatcom.

answered Apr 13 '11 at 21:36

Jerry Coffin

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score 0 · Answer 2 · answered May 22 '12 at 18:18

Using the int 21h function reference widely available you could write your own DOS interface routine where the parameters are loaded into the appropriate registers inside the routine.

As I recall I needed three functions: one for character IO (byte register parameters), one for semi-complex (word register parameters - files, memory) and a third which I can no longer remember :(

It's a good exercise!

score 0 · Answer 3 · answered Apr 13 '11 at 21:32

0

http://poli.cs.vsb.cz/c/help/dos.htm

Almost certainly not the original but a good resource anyway

answered Apr 13 '11 at 21:32

Where to find the reference of dos.h for the c programming language?

3 Answers3