Xref: news2.mv.net comp.os.msdos.djgpp:731
From: Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Mouse code - How do I lock memory?
Date: Sun, 28 Jan 1996 17:05:09 CST
Organization: Rice University, Houston, Texas
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Message-ID: <310c0125.sandmann@clio.rice.edu>
References: <4eg5ci$8h4 AT brickbat DOT mindspring DOT com>
Reply-To: sandmann AT clio DOT rice DOT edu
NNTP-Posting-Host: clio.rice.edu
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

> Does the function click_handler() get locked into memory by the call
> to _go32_dpmi_allocate_real_mode_callback_retf?

No, it doesn't (how would go32_dpmi_... know how long it was?)  This would
probably work until this routine was run in a very tight memory situation,
in which case it might be swapped out.  Look at the helper routine
_go32???lock_code in dpmi.h, and provide the length as init_mouse - 
click_handler (with the appropriate casts, of course).

If it's a relatively small piece of code, you can include crt0.h and set