Path: utzoo!mnetor!uunet!husc6!think!ames!pasteur!zooey.Berkeley.EDU!c162-fe
From: c162-fe@zooey.Berkeley.EDU (Jonathan Dubman)
Newsgroups: comp.sys.amiga
Subject: Manx/RawKeyConvert-urgent!
Message-ID: <1322@pasteur.Berkeley.Edu>
Date: 8 Mar 88 00:14:49 GMT
Sender: news@pasteur.Berkeley.Edu
Reply-To: c162-fe@zooey.Berkeley.EDU (Jonathan Dubman)
Organization: University of California, Berkeley
Lines: 44

#define URGENT
#define TIMELY

This is a question for the initiated.  (Bryce?  Matt?  Leo?  Chuck?  CATS?)
Summary of question:  HOW DO YOU CALL RawKeyConvert() from Manx?

I am having major problems calling the RawKeyConvert() function, which takes an
input event of class RAWKEY and returns the ASCII code, using any KeyMap.  It's
gotta be done this way - I already have the RAWKEY and I need to know its
translation.

This is actually a function of the Console Device, so the Console Device has to
be open.  The OpenDevice() call for the console device initializes the
io_Device field of the struct IOStdReq that I pass to it.

HOW DO YOU CALL IT FROM C?  I'd like to avoid writing an assembly language
front end, though I could if I really needed to.

I'm using Manx 3.4b.  I say
	numchars = RawKeyConvert(event, buffer, lengthy, NULL);

Compiles fine, but when I link it, it sings to the tune of
	Undefined _ConsoleDevice
or something.  Now ConsoleDevice() is a function mentioned in the functions.h
file - WHAT IS ConsoleDevice()?  (I'm using a precompiled file that includes
functions.h)

I tried creating a function ConsoleDevice() that returns the address of the
Console Device, but the program guru'ed.

I looked the assembly language output of the compiler.  It puts a bunch of
stuff on the stack and then does a jsr _RawKeyConvert.  Obviously,
_RawKeyConvert is a stub that pulls some stuff off the stack and puts it into
the appropriate registers for calling the real, system RawKeyConvert with a
jsr _LVORawKeyConvert(A6) where A6 is initialized to the address of the
Console Device (really the library node).  WHO SETS A6?  The _RawKeyConvert
stub function?  HOW DOES IT KNOW WHERE THE CONSOLE DEVICE IS?  IS THAT WHAT
ConsoleDevice() is for?

I've got the MANX manual, the RKM, and Mortimer vol. 2, but I just can't figure
this out.  Will somebody PLEASE set me straight?

	*&(Jonathan Dubman)
	upon answer:  :-(  --->  :-)