XEmacs / src / console-msw.c

/* Console functions for mswindows.
   Copyright (C) 1996 Ben Wing.

This file is part of XEmacs.

XEmacs is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

XEmacs is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with XEmacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

/* Synched up with: Not in FSF. */

/* Authorship:

   Ben Wing: January 1996, for 19.14.
   Rewritten for mswindows by Jonathan Harris, November 1997 for 21.0
 */

#include <config.h>
#include "lisp.h"

#include "console-msw.h"

DEFINE_CONSOLE_TYPE (mswindows);
DEFINE_CONSOLE_TYPE (msprinter);

/************************************************************************/
/*                       mswindows console methods                      */
/************************************************************************/

static int
mswindows_initially_selected_for_input (struct console *con)
{
  return 1;
}

static Lisp_Object
mswindows_canonicalize_console_connection (Lisp_Object connection,
					   Error_behavior errb)
{
  /* Do not allow more than one mswindows device, by explicitly
     requiring that CONNECTION is nil, the only allowed connection in
     Windows. */
  if (!NILP (connection))
    {
      if (ERRB_EQ (errb, ERROR_ME))
	signal_simple_error
	  ("Invalid (non-nil) connection for mswindows device/console",
	   connection);
      else
	return Qunbound;
    }

  return Qnil;
}

static Lisp_Object
mswindows_canonicalize_device_connection (Lisp_Object connection,
					  Error_behavior errb)
{
  return mswindows_canonicalize_console_connection (connection, errb);
}


/************************************************************************/
/*                            initialization                            */
/************************************************************************/

void
syms_of_console_mswindows (void)
{
}

void
console_type_create_mswindows (void)
{
  INITIALIZE_CONSOLE_TYPE (mswindows, "mswindows", "console-mswindows-p");

  /* console methods */
/*  CONSOLE_HAS_METHOD (mswindows, init_console); */
/*  CONSOLE_HAS_METHOD (mswindows, mark_console); */
  CONSOLE_HAS_METHOD (mswindows, initially_selected_for_input);
/*  CONSOLE_HAS_METHOD (mswindows, delete_console); */
  CONSOLE_HAS_METHOD (mswindows, canonicalize_console_connection);
  CONSOLE_HAS_METHOD (mswindows, canonicalize_device_connection);
/*  CONSOLE_HAS_METHOD (mswindows, semi_canonicalize_console_connection); */
/*  CONSOLE_HAS_METHOD (mswindows, semi_canonicalize_device_connection); */

  INITIALIZE_CONSOLE_TYPE (msprinter, "msprinter", "console-msprinter-p");
}

void
reinit_console_type_create_mswindows (void)
{
  REINITIALIZE_CONSOLE_TYPE (mswindows);
  REINITIALIZE_CONSOLE_TYPE (msprinter);
}

void
vars_of_console_mswindows (void)
{
  Fprovide (Qmswindows);
}


#ifdef DEBUG_XEMACS
#include "events.h"
#include "opaque.h"
/*
 * Random helper functions for debugging.
 * Intended for use in the MSVC "Watch" window which doesn't like
 * the aborts that the error_check_foo() functions can make.
 */
struct lrecord_header *
DHEADER (Lisp_Object obj)
{
  return LRECORDP (obj) ? XRECORD_LHEADER (obj) : NULL;
}

void *
DOPAQUE_DATA (Lisp_Object obj)
{
  return OPAQUEP (obj) ? OPAQUE_DATA (XOPAQUE (obj)) : NULL;
}

Lisp_Event *
DEVENT (Lisp_Object obj)
{
  return EVENTP (obj) ? XEVENT (obj) : NULL;
}

Lisp_Cons *
DCONS (Lisp_Object obj)
{
  return CONSP (obj) ? XCONS (obj) : NULL;
}

Lisp_Cons *
DCONSCDR (Lisp_Object obj)
{
  return (CONSP (obj) && CONSP (XCDR (obj))) ? XCONS (XCDR (obj)) : 0;
}

Bufbyte *
DSTRING (Lisp_Object obj)
{
  return STRINGP (obj) ? XSTRING_DATA (obj) : NULL;
}

Lisp_Vector *
DVECTOR (Lisp_Object obj)
{
  return VECTORP (obj) ? XVECTOR (obj) : NULL;
}

Lisp_Symbol *
DSYMBOL (Lisp_Object obj)
{
  return SYMBOLP (obj) ? XSYMBOL (obj) : NULL;
}

Bufbyte *
DSYMNAME (Lisp_Object obj)
{
  return SYMBOLP (obj) ? string_data (XSYMBOL (obj)->name) : NULL;
}

#endif /* DEBUG_XEMACS */
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