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registry (n)

Manipulate the Windows registry

SYNOPSIS

    package require registry 1.0 registry option keyName ?arg arg ...?

DESCRIPTION

    The registry package provides a general set of operations for manipulating the Windows registry. The package implements the registry Tcl command. This command is only supported on the Windows platform. Warning: this command should be used with caution as a corrupted registry can leave your system in an unusable state.

    KeyName is the name of a registry key. Registry keys must be one of the following forms:

      \e\ehostname\erootname\ekeypath

      rootname\ekeypath

      rootname

    Hostname specifies the name of any valid Windows host that exports its registry. The rootname component must be one of HKEY_LOCAL_MACHINE, HKEY_USERS, HKEY_CLASSES_ROOT, HKEY_CURRENT_USER, HKEY_CURRENT_CONFIG, HKEY_PERFORMANCE_DATA, or HKEY_DYN_DATA. The keypath can be one or more registry key names separated by backslash (\e) characters.

    Option indicates what to do with the registry key name. Any unique abbreviation for option is acceptable. The valid options are:

    registry delete keyName ?valueName?

      If the optional valueName argument is present, the specified value under keyName will be deleted from the registry. If the optional valueName is omitted, the specified key and any subkeys or values beneath it in the registry heirarchy will be deleted. If the key could not be deleted then an error is generated. If the key did not exist, the command has no effect.

    registry get keyName valueName

      Returns the data associated with the value valueName under the key keyName. If either the key or the value does not exist, then an error is generated. For more details on the format of the returned data, see SUPPORTED TYPES, below.

    registry keys keyName ?pattern?

      If pattern isn't specified, returns a list of names of all the subkeys of keyName. If pattern is specified, only those names matching pattern are returned. Matching is determined using the same rules as for string match. If the specified keyName does not exist, then an error is generated.

    registry set keyName ?valueName data ?type??

      If valueName isn't specified, creates the key keyName if it doesn't already exist. If valueName is specified, creates the key keyName and value valueName if necessary. The contents of valueName are set to data with the type indicated by type. If type isn't specified, the type sz is assumed. For more details on the data and type arguments, see SUPPORTED TYPES below.

    registry type keyName valueName

      Returns the type of the value valueName in the key keyName. For more information on the possible types, see SUPPORTED TYPES, below.

    registry values keyName ?pattern?

      If pattern isn't specified, returns a list of names of all the values of keyName. If pattern is specified, only those names matching pattern are returned. Matching is determined using the same rules as for string match.

SUPPORTED TYPES

    Each value under a key in the registry contains some data of a particular type in a type-specific representation. The registry command converts between this internal representation and one that can be manipulated by Tcl scripts. In most cases, the data is simply returned as a Tcl string. The type indicates the intended use for the data, but does not actually change the representation. For some types, the registry command returns the data in a different form to make it easier to manipulate. The following types are recognized by the registry command:

    binary

      The registry value contains arbitrary binary data. The data is represented exactly in Tcl, including any embedded nulls. Tcl

    none

      The registry value contains arbitrary binary data with no defined type. The data is represented exactly in Tcl, including any embedded nulls.

    sz

      The registry value contains a null-terminated string. The data is represented in Tcl as a string.

    expand_sz

      The registry value contains a null-terminated string that contains unexpanded references to environment variables in the normal Windows style (for example, "%PATH%"). The data is represented in Tcl as a string.

    dword

      The registry value contains a little-endian 32-bit number. The data is represented in Tcl as a decimal string.

    dword_big_endian

      The registry value contains a big-endian 32-bit number. The data is represented in Tcl as a decimal string.

    link

      The registry value contains a symbolic link. The data is represented exactly in Tcl, including any embedded nulls.

    multi_sz

      The registry value contains an array of null-terminated strings. The data is represented in Tcl as a list of strings.

    resource_list

      The registry value contains a device-driver resource list. The data is represented exactly in Tcl, including any embedded nulls.

    In addition to the symbolically named types listed above, unknown types are identified using a 32-bit integer that corresponds to the type code returned by the system interfaces. In this case, the data is represented exactly in Tcl, including any embedded nulls.

PORTABILITY ISSUES

    The registry command is only available on Windows.

KEYWORDS

    registry '\" '\" Copyright (c) 1993 The Regents of the University of California. '\" Copyright (c) 1994-1996 Sun Microsystems, Inc. '\" '\" See the file "license.terms" for information on usage and redistribution '\" of this file, and for a DISCLAIMER OF ALL WARRANTIES. '\" '\" RCS: @(#) $Id: regsub.n,v 1.2 1998/09/14 18:39:54 stanton Exp $ '\" '\" The definitions below are for supplemental macros used in Tcl/Tk '\" manual entries. '\" '\" .AP type name in/out ?indent? '\" Start paragraph describing an argument to a library procedure. '\" type is type of argument (int, etc.), in/out is either "in", "out", '\" or "in/out" to describe whether procedure reads or modifies arg, '\" and indent is equivalent to second arg of .IP (shouldn't ever be '\" needed; use .AS below instead) '\" '\" .AS ?type? ?name? '\" Give maximum sizes of arguments for setting tab stops. Type and '\" name are examples of largest possible arguments that will be passed '\" to .AP later. If args are omitted, default tab stops are used. '\" '\" .BS '\" Start box enclosure. From here until next .BE, everything will be '\" enclosed in one large box. '\" '\" .BE '\" End of box enclosure. '\" '\" .CS '\" Begin code excerpt. '\" '\" .CE '\" End code excerpt. '\" '\" .VS ?version? ?br? '\" Begin vertical sidebar, for use in marking newly-changed parts '\" of man pages. The first argument is ignored and used for recording '\" the version when the .VS was added, so that the sidebars can be '\" found and removed when they reach a certain age. If another argument '\" is present, then a line break is forced before starting the sidebar. '\" '\" .VE '\" End of vertical sidebar. '\" '\" .DS '\" Begin an indented unfilled display. '\" '\" .DE '\" End of indented unfilled display. '\" '\" .SO '\" Start of list of standard options for a Tk widget. The '\" options follow on successive lines, in four columns separated '\" by tabs. '\" '\" .SE '\" End of list of standard options for a Tk widget. '\" '\" .OP cmdName dbName dbClass '\" Start of description of a specific option. cmdName gives the '\" option's name as specified in the class command, dbName gives '\" the option's name in the option database, and dbClass gives '\" the option's class in the option database. '\" '\" .UL arg1 arg2 '\" Print arg1 underlined, then print arg2 normally. '\" '\" RCS: @(#) $Id: man.macros,v 1.2 1998/09/14 18:39:54 stanton Exp $ '\" '\" # Set up traps and other miscellaneous stuff for Tcl/Tk man pages. t .wh -1.3i ^B ^l \n(.l b '\" # Start an argument description AP !"\\$4"" .TP \\$4 \{\ !"\\$2"" .TP \\n()Cu .TP 15