/* $Id: registry.pl,v 1.12 2003/09/24 09:29:23 jan Exp $ Part of SWI-Prolog Author: Jan Wielemaker E-mail: jan@swi.psy.uva.nl WWW: http://www.swi-prolog.org Copyright (C): 1985-2002, University of Amsterdam This program 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 Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA As a special exception, if you link this library with other files, compiled with a Free Software compiler, to produce an executable, this library does not by itself cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU General Public License. */ /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - This module requires plregtry.ddl, for which the sources are in the dlldemo directory. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ :- module(win_registry, [ registry_get_key/2, % +Path, -Value registry_get_key/3, % +Path, +Name, -Value registry_set_key/2, % +Path, +Value registry_set_key/3, % +Path, +Name, +Value registry_delete_key/1, % +Path registry_lookup_key/3, % +Path, +Access, -Key win_flush_filetypes/0, % Flush changes filetypes to shell shell_register_file_type/4, % +Ext, +Type, +Name, +Open shell_register_file_type/5, % +Ext, +Type, +Name, +Open, +Icon shell_register_dde/6, % +Type, +Action, % +Service, Topic, +DDECommand % +IfNotRunning shell_register_prolog/1 % +Extension ]). :- initialization load_foreign_library(foreign(plregtry)). % load plregtry.ddl /******************************* * REGISTER PROLOG * *******************************/ shell_register_prolog(Ext) :- current_prolog_flag(argv, [Me|_]), concat_atom(['"', Me, '" "%1"'], OpenCommand), atom_concat(Me, ',0', Icon), shell_register_file_type(Ext, 'prolog.type', 'Prolog Source', OpenCommand, Icon), shell_register_dde('prolog.type', consult, prolog, control, 'consult(''%1'')', Me), shell_register_dde('prolog.type', edit, prolog, control, 'edit(''%1'')', Me), win_flush_filetypes. /******************************* * WINDOWS SHELL STUFF * *******************************/ % shell_register_file_type(+Extension, +Type, +Name, +Open, [+Icon]) % % Register an extension to a type. The open command for the type % is defined and files with this extension will be given Name as % their description in the explorer. For example: % % ?- shell_register_file_type(pl, 'prolog.type', 'Prolog Source', % '"c:\\pl\\bin\\plwin.exe" "%1"'). % % The icon command is of the form File.exe,N or File.ico,0 shell_register_file_type(Ext, Type, Name, Open) :- ensure_dot(Ext, DExt), registry_set_key(classes_root/DExt, Type), registry_set_key(classes_root/Type, Name), registry_set_key(classes_root/Type/shell/open/command, Open), win_flush_filetypes. shell_register_file_type(Ext, Type, Name, Open, Icon) :- shell_register_file_type(Ext, Type, Name, Open), registry_set_key(classes_root/Type/'DefaultIcon', Icon), win_flush_filetypes. ensure_dot(Ext, Ext) :- atom_concat('.', _, Ext), !. ensure_dot(Ext, DExt) :- atom_concat('.', Ext, DExt). % Register a DDE command for the type. The example below will % send DDE_EXECUTE command `consult('') to the service % prolog, given the topic control. % % shell_register_dde('prolog.type', consult, % prolog, control, 'consult(''%1'')', % 'c:\\pl\\bin\\plwin.exe -g "edit(''%1'')"'). shell_register_dde(Type, Action, Service, Topic, DDECommand, IfNotRunning) :- registry_make_key(classes_root/Type/shell/Action/ddeexec, all_access, EKey), registry_set_key(classes_root/Type/shell/Action/command, IfNotRunning), reg_set_value(EKey, '', DDECommand), registry_set_key(EKey/'Application', Service), registry_set_key(EKey/ifexec, ''), registry_set_key(EKey/topic, Topic), reg_close_key(EKey). /******************************* * REGISTRY STUFF * *******************************/ /* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - In the commands below, Path refers to the path-name of the registry. A path is a '/' separated description, where the / should be interpreted as a Prolog operator. For example, classes_root/'prolog.type'/shell. The components should be atoms. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */ % registry_set_key(+Path, [+Name], +Value) % % Associate a (string) value with the key described by Path. If % part of the path does not exist, the required keys will be created. registry_set_key(Path, Value) :- registry_set_key(Path, '', Value). registry_set_key(Path, Name, Value) :- registry_make_key(Path, write, Key, Close), reg_set_value(Key, Name, Value), Close. % registry_get_key(+Path, [+Name], -Value) % % Get the value associated with the given key. If the key does not % exists, the predicate fails silently. registry_get_key(Path, Value) :- registry_get_key(Path, '', Value). registry_get_key(Path, Name, Value) :- registry_lookup_key(Path, read, Key, Close), ( reg_value(Key, Name, RawVal) -> Close, Value = RawVal ; Close, fail ). % registry_delete_key(+Path) % % Delete the gven key and all its subkeys and values. Note that % the root-keys cannot be deleted. registry_delete_key(Parent/Node) :- !, registry_lookup_key(Parent, all_access, PKey), ( reg_open_key(PKey, Node, all_access, Key) -> delete_subkeys(Key), reg_close_key(Key), reg_delete_key(PKey, Node) ), reg_close_key(PKey). delete_subkeys(Parent) :- reg_subkeys(Parent, Subs), forall(member(Sub, Subs), delete_subkey(Parent, Sub)). delete_subkey(Parent, Sub) :- reg_open_key(Parent, Sub, all_access, Key), delete_subkeys(Key), reg_close_key(Key), reg_delete_key(Parent, Sub). % registry_make_key(+Path, +Access, -Key) % % Open the given key and create required keys if the path does not % exist. registry_make_key(Path, Access, Key) :- registry_make_key(Path, Access, Key, _). registry_make_key(A/B, Access, Key, Close) :- !, registry_make_key(A, Access, Parent, CloseParent), ( reg_open_key(Parent, B, Access, RawKey) -> true ; reg_create_key(Parent, B, '', [], Access, RawKey) ), CloseParent, Close = reg_close_key(RawKey), Key = RawKey. registry_make_key(Key, _, Key, true). % registry_lookup_key(+Path, +Access, -Key) % % Open the given key, fail silently if the key doesn't % exist. registry_lookup_key(Path, Access, Key) :- registry_lookup_key(Path, Access, Key, _). registry_lookup_key(A/B, Access, Key, Close) :- !, registry_lookup_key(A, Access, Parent, CloseParent), reg_open_key(Parent, B, Access, RawKey), CloseParent, Close = reg_close_key(RawKey), Key = RawKey. registry_lookup_key(Key, _, Key, true).