libgnt/libgnt

Make all destroy functions multi-call safe.

2020-09-27, Elliott Sales de Andrade
ffb6069167a2
Make all destroy functions multi-call safe.

Also, fix an incorrect name for a dispose vfunc.

Testing Done:
Compile only, and the test from LIBGNT-11.

Reviewed at https://reviews.imfreedom.org/r/141/
/*
* GNT - The GLib Ncurses Toolkit
*
* GNT is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library 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 of the License, or
* (at your option) any later version.
*
* This program 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
* this program; if not, see <https://www.gnu.org/licenses/>.
*/
#if !defined(GNT_GLOBAL_HEADER_INSIDE) && !defined(GNT_COMPILATION)
# error "only <gnt.h> may be included directly"
#endif
#ifndef GNT_MENUITEM_PRIVATE_H
#define GNT_MENUITEM_PRIVATE_H
#include "gntmenuitem.h"
G_BEGIN_DECLS
/* Private access to some internals. Contact us if you need these. */
G_GNUC_INTERNAL
gboolean gnt_menuitem_has_callback(GntMenuItem *item);
G_GNUC_INTERNAL
void gnt_menuitem_set_position(GntMenuItem *item, gint x, gint y);
G_GNUC_INTERNAL
void gnt_menuitem_get_position(GntMenuItem *item, gint *x, gint *y);
G_GNUC_INTERNAL
const gchar *gnt_menuitem_get_text(GntMenuItem *item);
G_END_DECLS
#endif /* GNT_MENUITEM_PRIVATE_H */