> The book is called the ADVANCED PROGRAMMER'S GUIDE TO OS/2. It was
 > written by Thuyen Nguyen & Robert Moskal and was published in 1989.
 > Thunbing through the book I see a lot of example programs
 > demonstrating
 > various advanced OS/2 concepts. Upon closer inspection, I noticed
 > that
 > quite a few programs have #includes for some header files that I
 > don't
 > see in Watcom's /h directory. One chapter on VIO video functions has
 > references to "doscalls.h" & "subcalls.h". Is
this book obsolete for
 > present day OS/2 programming or have some of the header files just
 > been
 > changed. I don't know enough about OS/2 APIs etc. to recognize
 > whether
 > these programs use regular, present day functions - one program in
 > the
 > VIO chapter demonstrates the use of these VIO functions: VIOWRTNCHAR,
 > VIOWRTCHARSTR, VIOGETCURPOS & VIOSETCURPOS.

Yeah, I have this book. For your headers, just do
#define INCL_DOS
#define INCL_VIO
#include 

that should work for most of the examples.

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