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list(n) Tcl Built-In Commands list(n)
_________________________________________________________________________________________________
NAME
list - Create a list
SYNOPSIS
list ?arg arg ...?
_________________________________________________________________
DESCRIPTION
This command returns a list comprised of all the args, or an empty string if no args are
specified. Braces and backslashes get added as necessary, so that the lindex command may
be used on the result to re-extract the original arguments, and also so that eval may be
used to execute the resulting list, with arg1 comprising the command's name and the other
args comprising its arguments. List produces slightly different results than concat:
concat removes one level of grouping before forming the list, while list works directly
from the original arguments.
EXAMPLE
The command
list a b "c d e " " f {g h}"
will return
a b {c d e } { f {g h}}
while concat with the same arguments will return
a b c d e f {g h}
SEE ALSO
lappend(n), lindex(n), linsert(n), llength(n), lrange(n), lrepeat(n), lreplace(n), |
lsearch(n), lset(n), lsort(n)
KEYWORDS
element, list
Tcl list(n)
XQueryExtension(3) X FUNCTIONS XQueryExtension(3)
NAME
XQueryExtension, XListExtensions, XFreeExtensionList - list available extensions
SYNTAX
Bool XQueryExtension(display, name, major_opcode_return, first_event_return,
first_error_return)
char **XListExtensions(display, nextensions_return)
XFreeExtensionList(list)
ARGUMENTS
display Specifies the connection to the X server.
name Specifies the extension name.
major_opcode_return
Returns the major opcode.
first_event_return
Returns the first event code, if any.
first_error_return
Returns the first error code, if any.
nextensions_return
Returns the number of extensions listed.
list Specifies the list of extension names.
DESCRIPTION
The XQueryExtension function determines if the named extension is present. If the exten-
sion is not present, XQueryExtension returns False; otherwise, it returns True. If the
extension is present, XQueryExtension returns the major opcode for the extension to
major_opcode_return; otherwise, it returns zero. Any minor opcode and the request formats
are specific to the extension. If the extension involves additional event types,
XQueryExtension returns the base event type code to first_event_return; otherwise, it
returns zero. The format of the events is specific to the extension. If the extension
involves additional error codes, XQueryExtension returns the base error code to
first_error_return; otherwise, it returns zero. The format of additional data in the
errors is specific to the extension. If the extension name is not in the Host Portable
Character Encoding the result is implementation-dependent. Uppercase and lowercase mat-
ter; the strings ``thing'', ``Thing'', and ``thinG'' are all considered different names.
The XListExtensions function returns a list of all extensions supported by the server. If
the data returned by the server is in the Latin Portable Character Encoding, then the
returned strings are in the Host Portable Character Encoding. Otherwise, the result is
implementation-dependent.
The XFreeExtensionList function frees the memory allocated by XListExtensions.
X Version 11 libX11 1.6.7 XQueryExtension(3)
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
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