'\" t
.\"     Title: xgetextensionversion
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 06/19/2019
.\"    Manual: \ \&
.\"    Source: \ \&
.\"  Language: English
.\"
.TH "XGETEXTENSIONVERSION" "3" "06/19/2019" "\ \&" "\ \&"
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.SH "NAME"
XGetExtensionVersion \- query the version of the input extension\&.
.SH "SYNOPSIS"
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.nf
#include <X11/extensions/XInput\&.h>
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XExtensionVersion *XGetExtensionVersion( Display *display,
                                         char *name);
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display
       Specifies the connection to the X server\&.
.fi
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.nf
name
       Specifies the extension to be queried\&. The input
       extension name is definedin the header file XI\&.h\&.
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.SH "DESCRIPTION"
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The XGetExtensionVersion request is deprecated and should not
be used in XI2 applications\&. Clients issuing a XGetExtensionVersion
request will not be able to use XI2 features\&.
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.RE
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.nf
The XGetExtensionVersion request queries the version of the input
extension, and returns an XExtensionVersion structure\&. This structure
contains a major_version and minor_version number which can be compared
with constants defined in XI\&.h\&. Support for additional protocol
requests added to the input extension after its initial release
is indicated by a version number corresponding to the added
requests\&. Each version contains all the protocol requests
contained by previous versions\&.
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You should use XFree to free the XExtensionVersion structure\&.
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.SH "STRUCTURES"
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This request returns an XExtensionVersion structure\&.
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typedef struct {
    int present;
    short major_version;
    short minor_version;
} XExtensionVersion;
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