79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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*
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* Copyright (C) 2010 Bastien Nocera <hadess@hadess.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "config.h"
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#include <string.h>
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#include <gdk/gdk.h>
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#include <gdk/gdkx.h>
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#include <sys/types.h>
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#include <X11/Xatom.h>
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#include <X11/extensions/XInput2.h>
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#include "gsd-input-helper.h"
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char *
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xdevice_get_device_node (int deviceid)
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{
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Atom prop;
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Atom act_type;
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int act_format;
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unsigned long nitems, bytes_after;
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unsigned char *data;
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char *ret;
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gdk_display_sync (gdk_display_get_default ());
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prop = XInternAtom (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), "Device Node", False);
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if (!prop)
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return NULL;
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gdk_x11_display_error_trap_push (gdk_display_get_default ());
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if (!XIGetProperty (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()),
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deviceid, prop, 0, 1000, False,
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AnyPropertyType, &act_type, &act_format,
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&nitems, &bytes_after, &data) == Success) {
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gdk_x11_display_error_trap_pop_ignored (gdk_display_get_default ());
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return NULL;
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}
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if (gdk_x11_display_error_trap_pop (gdk_display_get_default ()))
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goto out;
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if (nitems == 0)
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goto out;
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if (act_type != XA_STRING)
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goto out;
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/* Unknown string format */
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if (act_format != 8)
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goto out;
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ret = g_strdup ((char *) data);
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XFree (data);
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return ret;
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out:
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XFree (data);
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return NULL;
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}
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