from small one page howto to huge articles all in one place
 

search text in:





Poll
Which filesystem do you use?






poll results

Last additions:
using iotop to find disk usage hogs

using iotop to find disk usage hogs

words:

887

views:

193513

userrating:

average rating: 1.7 (102 votes) (1=very good 6=terrible)


May 25th. 2007:
Words

486

Views

251683

why adblockers are bad


Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

Workaround and fixes for the current Core Dump Handling vulnerability affected kernels

words:

161

views:

140554

userrating:

average rating: 1.4 (42 votes) (1=very good 6=terrible)


April, 26th. 2006:

Druckversion
You are here: manpages





XQueryExtension

Section: X FUNCTIONS (3)
Updated: libX11 1.6.4
Index Return to Main Contents
 

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 extension 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 matter; 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.


 

Index

NAME
SYNTAX
ARGUMENTS
DESCRIPTION





Support us on Content Nation
rdf newsfeed | rss newsfeed | Atom newsfeed
- Powered by LeopardCMS - Running on Gentoo -
Copyright 2004-2020 Sascha Nitsch Unternehmensberatung GmbH
Valid XHTML1.1 : Valid CSS : buttonmaker
- Level Triple-A Conformance to Web Content Accessibility Guidelines 1.0 -
- Copyright and legal notices -
Time to create this page: 14.4 ms