Last updated: March 19th, 2001

rt utility library
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This is a small collection of C++ classes and functions that I have
found useful while writing COM code.  All of these classes arose out
of a specific need.  This code comes with absolutely no warranty and
no guarantee to be free of defects; use at your own risk.

Most of this library consists of header files in <INSTALLDIR>/rt.
The supplied VC++6 projects and workspace provide choices for Unicode
or ANSI and Debug or Release as static libraries.  The only code
present in the library is the constructor for rt::hr_message.  If
you don't use the <rt/hr.h> facilities, then you won't need the
library.  However, I find that I use <rt/hr.h> in all but the simplest
of programs.

The messages DLL provides slightly more friendly error message strings
for the Direct3D and DirectDraw error return values.  It consists of
a message table resource only.  It is simply a debugging aid.  Consult
the constructor for hr_message in hr.cpp for an example of how to use
it.  The existing code assumes that the DLL will be found by the path
searching mechanism in LoadLibrary().

The tests directory contains some unit tests and examples of how to
use the library.

In VC++6, go to Tools / Options / Directories / Include Files and add
<INSTALLDIR>, the parent directory of the 'rt' directory, to your include
path for the tests and client code of this library to compile.

19-Mar-2001:
    Added D3DX and DXFile interfaces to <rt/iid.h>

Copyright (C) 2000-2001 Rich Thomson, all rights reserved.