gdkcursor.c

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00001 /* GDK - The GIMP Drawing Kit
00002  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
00003  *
00004  * This library is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Library General Public
00006  * License as published by the Free Software Foundation; either
00007  * version 2 of the License, or (at your option) any later version.
00008  *
00009  * This library is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012  * Library General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Library General Public
00015  * License along with this library; if not, write to the
00016  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00017  * Boston, MA 02111-1307, USA.
00018  */
00019 
00020 /*
00021  * Modified by the GTK+ Team and others 1997-1999.  See the AUTHORS
00022  * file for a list of people on the GTK+ Team.  See the ChangeLog
00023  * files for a list of changes.  These files are distributed with
00024  * GTK+ at ftp://ftp.gtk.org/pub/gtk/. 
00025  */
00026 
00027 #include "gdkcursor.h"
00028 #include "gdkprivate.h"
00029 
00030 GdkCursor *gdk_cursor_ref(GdkCursor * cursor)
00031 {
00032    g_return_val_if_fail(cursor != NULL, NULL);
00033    g_return_val_if_fail(cursor->ref_count > 0, NULL);
00034 
00035    cursor->ref_count += 1;
00036 
00037    return cursor;
00038 }
00039 
00040 void gdk_cursor_unref(GdkCursor * cursor)
00041 {
00042    g_return_if_fail(cursor != NULL);
00043    g_return_if_fail(cursor->ref_count > 0);
00044 
00045    cursor->ref_count -= 1;
00046 
00047    if (cursor->ref_count == 0)
00048       _gdk_cursor_destroy(cursor);
00049 }

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