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#define NST_INIT_PLUGIN(plugininfo)
Call this on an NstPluginInfo structure to make it available to caja-sendto.
struct NstPluginInfo {
	gchar                             *icon;
	gchar                             *id;
	gchar                             *description;
	gchar                             *gettext_package;
	NstPluginCapabilities              capabilities;
	gboolean (*init)                  (NstPlugin *plugin);
	GtkWidget* (*get_contacts_widget) (NstPlugin *plugin);
	gboolean (*validate_destination)  (NstPlugin *plugin, GtkWidget *contact_widget, char **error);
	gboolean (*send_files)            (NstPlugin *plugin,
					   GtkWidget *contact_widget,
					   GList *file_list);
	gboolean (*destroy)               (NstPlugin *plugin) ;
};
A structure representing a caja-sendto plugin. You should also call NST_INIT_PLUGIN() on the plugin structure to export it.
| The icon name for the plugin selection drop-down | ||
| A unique ID representing the plugin | ||
| The label used in the plugin selection drop-down | ||
| The domain to use to translate the description,  | ||
| NstPluginCapabilities  | a bitmask of NstPluginCapabilities | |
| Check for dependencies, and return  | ||
| Return the contact widget, the widget to select the destination of the files | ||
| Validate whether the destination can receive the file. This callback is optional. | ||
| Actually send the files to the selected destination. The file list is a GList of URI strings. | ||
| Free all the resources used by the plugin. | 
struct NstPlugin {
	GModule *module;
	NstPluginInfo *info;
};
A structure as used in caja-sendto.