Xref:	news2.mv.net comp.os.msdos.djgpp:7031
From:	bdarnell AT vnet DOT net (Ben Darnell)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Allegro 2.1 mouse range bug & fix
Date:	Fri, 09 Aug 1996 19:09:36 GMT
Organization:	Vnet Internet Access, Inc.
Lines:	25
Message-ID:	<4ug2f3$e6o@ralph.vnet.net>
NNTP-Posting-Host:	vts-char3-s29.vnet.net
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

In Allegro 2.1, set_mouse_range is not called correctly by
install_mouse, which tends to trap your mouse in the corner of the
screen.  There are two ways to solve this. A: call set_mouse_range
yourself in every program, or B: in allegro/src/mouse.c move the
mouse_installed = TRUE; line before the call to _set_mouse_range

allegro/src/mouse.c lines 473-476:
----------------------------------
   _set_mouse_range(); /* _set_mouse_range does nothing if
                          mouse_installed==FALSE  */

   _add_exit_func(remove_mouse);
   mouse_installed = TRUE;  /* move this line */
----------------------------------

Recompile with this change and the mouse range will automatically be
set to the entire screen when the mouse is installed.


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