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5f4464445f
Hopefully this should be enough to add new features in the future without breaking ABI, at least until GIMP 4!
220 lines
9 KiB
C
220 lines
9 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-2003 Peter Mattis and Spencer Kimball
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*
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* gimpplugin.h
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* Copyright (C) 2019 Michael Natterer <mitch@gimp.org>
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#if !defined (__GIMP_H_INSIDE__) && !defined (GIMP_COMPILATION)
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#error "Only <libgimp/gimp.h> can be included directly."
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#endif
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#ifndef __GIMP_PLUG_IN_H__
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#define __GIMP_PLUG_IN_H__
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G_BEGIN_DECLS
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/* For information look into the C source or the html documentation */
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#define GIMP_PLUG_IN_ERROR (gimp_plug_in_error_quark ())
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#define GIMP_TYPE_PLUG_IN (gimp_plug_in_get_type ())
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G_DECLARE_DERIVABLE_TYPE (GimpPlugIn, gimp_plug_in, GIMP, PLUG_IN, GObject)
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/**
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* GimpPlugInClass:
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*
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* A class which every plug-in should subclass, while overriding
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* [vfunc@PlugIn.query_procedures] and/or [vfunc@PlugIn.init_procedures], as
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* well as [vfunc@PlugIn.create_procedure].
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*
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* Since: 3.0
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**/
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struct _GimpPlugInClass
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{
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GObjectClass parent_class;
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/**
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* GimpPlugInClass::query_procedures:
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* @plug_in: a #GimpPlugIn.
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*
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* This method can be overridden by all plug-ins to return a newly allocated
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* list of allocated strings naming the procedures registered by this
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* plug-in. See documentation of [vfunc@PlugIn.init_procedures] for
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* differences.
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*
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* Returns: (element-type gchar*) (transfer full): the names of the procedures registered by @plug_in.
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*/
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GList * (* query_procedures) (GimpPlugIn *plug_in);
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/**
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* GimpPlugInClass::init_procedures:
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* @plug_in: a #GimpPlugIn.
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*
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* This method can be overridden by all plug-ins to return a newly allocated
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* list of allocated strings naming procedures registered by this plug-in.
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* It is different from [vfunc@PlugIn.query_procedures] in that init happens
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* at every startup, whereas query happens only once in the life of a plug-in
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* (right after installation or update). Hence [vfunc@PlugIn.init_procedures]
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* typically returns procedures dependent to runtime conditions (such as the
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* presence of a third-party tool), whereas [vfunc@PlugIn.query_procedures]
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* would usually return procedures that are always available unconditionally.
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*
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* Most of the time, you only want to override
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* [vfunc@PlugIn.query_procedures] and leave [vfunc@PlugIn.init_procedures]
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* untouched.
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*
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* Returns: (element-type gchar*) (transfer full): the names of the procedures registered by @plug_in.
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**/
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GList * (* init_procedures) (GimpPlugIn *plug_in);
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/**
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* GimpPlugInClass::create_procedure:
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* @plug_in: a #GimpPlugIn.
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* @procedure_name: procedure name.
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*
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* This method must be overridden by all plug-ins and return a newly
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* allocated #GimpProcedure named @name.
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*
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* This method will be called for every @name as returned by
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* [vfunc@PlugIn.query_procedures] and [vfunc@PlugIn.init_procedures] so care
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* must be taken to handle them all. Upon procedure registration,
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* [vfunc@PlugIn.create_procedure] will be called in the order of the lists
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* returned by [vfunc@PlugIn.query_procedures] and
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* [vfunc@PlugIn.init_procedures]
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*
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* Returns: (transfer full): the procedure to be registered or executed by @plug_in.
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*/
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GimpProcedure * (* create_procedure) (GimpPlugIn *plug_in,
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const gchar *procedure_name);
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/**
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* GimpPlugInClass::quit:
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* @plug_in: a #GimpPlugIn.
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*
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* This method can be overridden by a plug-in which needs to perform some
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* actions upon quitting.
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*/
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void (* quit) (GimpPlugIn *plug_in);
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/**
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* GimpPlugInClass::set_i18n:
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* @plug_in: a #GimpPlugIn.
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* @procedure_name: procedure name.
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* @gettext_domain: (out) (nullable): Gettext domain. If %NULL, it
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* defaults to the plug-in name as determined by the
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* directory the binary is called from.
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* @catalog_dir: (out) (nullable) (type utf8): relative path to a
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* subdirectory of the plug-in folder containing the compiled
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* Gettext message catalogs. If %NULL, it defaults to
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* "locale/".
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*
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* This method can be overridden by all plug-ins to customize
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* internationalization of the plug-in.
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*
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* This method will be called before initializing, querying or running
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* @procedure_name (respectively with [vfunc@PlugIn.init_procedures],
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* [vfunc@PlugIn.query_procedures] or with the `run()` function set in
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* `gimp_image_procedure_new()`).
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*
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* By default, GIMP plug-ins look up gettext compiled message catalogs
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* in the subdirectory `locale/` under the plug-in folder (same folder
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* as `gimp_get_progname()`) with a text domain equal to the plug-in
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* name (regardless @procedure_name). It is unneeded to override this
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* method if you follow this localization scheme.
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*
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* If you wish to disable localization or localize with another system,
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* simply set the method to %NULL, or possibly implement this method
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* to do something useful for your usage while returning %FALSE.
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*
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* If you wish to tweak the @gettext_domain or the @catalog_dir, return
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* %TRUE and allocate appropriate @gettext_domain and/or @catalog_dir
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* (these use the default if set %NULL).
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*
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* Note that @catalog_dir must be a relative path, encoded as UTF-8,
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* subdirectory of the directory of `gimp_get_progname()`.
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* The domain names "gimp30-std-plug-ins", "gimp30-script-fu" and
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* "gimp30-python" are reserved and can only be used with a %NULL
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* @catalog_dir. These will use the translation catalogs installed for
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* core plug-ins, so you are not expected to use these for your
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* plug-ins, except if you are making a core plug-in. More domain
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* names may become reserved so we discourage using a gettext domain
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* starting with "gimp30-".
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*
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* When localizing your plug-in this way, GIMP also binds
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* @gettext_domain to the UTF-8 encoding.
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*
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* Returns: %TRUE if this plug-in will use Gettext localization. You
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* may return %FALSE if you wish to disable localization or
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* set it up differently.
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*
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* Since: 3.0
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*/
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gboolean (* set_i18n) (GimpPlugIn *plug_in,
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const gchar *procedure_name,
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gchar **gettext_domain,
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gchar **catalog_dir);
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/* Padding for future expansion */
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/*< private >*/
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void (* _gimp_reserved0) (void);
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void (* _gimp_reserved1) (void);
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void (* _gimp_reserved2) (void);
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void (* _gimp_reserved3) (void);
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void (* _gimp_reserved4) (void);
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void (* _gimp_reserved5) (void);
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void (* _gimp_reserved6) (void);
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void (* _gimp_reserved7) (void);
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void (* _gimp_reserved8) (void);
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void (* _gimp_reserved9) (void);
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};
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GQuark gimp_plug_in_error_quark (void);
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void gimp_plug_in_set_help_domain (GimpPlugIn *plug_in,
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const gchar *domain_name,
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GFile *domain_uri);
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void gimp_plug_in_add_menu_branch (GimpPlugIn *plug_in,
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const gchar *menu_path,
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const gchar *menu_label);
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void gimp_plug_in_add_temp_procedure (GimpPlugIn *plug_in,
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GimpProcedure *procedure);
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void gimp_plug_in_remove_temp_procedure (GimpPlugIn *plug_in,
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const gchar *procedure_name);
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GList * gimp_plug_in_get_temp_procedures (GimpPlugIn *plug_in);
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GimpProcedure * gimp_plug_in_get_temp_procedure (GimpPlugIn *plug_in,
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const gchar *procedure_name);
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void gimp_plug_in_persistent_enable (GimpPlugIn *plug_in);
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void gimp_plug_in_persistent_process (GimpPlugIn *plug_in,
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guint timeout);
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void gimp_plug_in_set_pdb_error_handler (GimpPlugIn *plug_in,
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GimpPDBErrorHandler handler);
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GimpPDBErrorHandler
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gimp_plug_in_get_pdb_error_handler (GimpPlugIn *plug_in);
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G_END_DECLS
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#endif /* __GIMP_PLUG_IN_H__ */
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