[Info-vax] C Examples of Calling SMG$ Routines?

[Zane H. Healy]

In looking at the "OpenVMS RTL Screen Management (SMG$) Manual" on the VSI
website, they give examples of every language supported, except C/C++.  The
manual itself says it's new as of 2019, but also says it's for HP OpenVMS
VAX/Alpha 7.3.  :-)  Looking at my copy of the manual for v6, all they did
was remove the code for "RPG II".

Does anyone happen to have some basic examples of using the SMG$ Routines in
C?  As it happens, the example does just what I need, since it shows how to
use SMG$READ_KEYSTROKE.

Thanks,
Zane