132 lines
2.8 KiB
Groff
132 lines
2.8 KiB
Groff
'\" t
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.\" Title: xiqueryversion
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.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
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.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
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.\" Date: 08/04/2010
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.\" Manual: [FIXME: manual]
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.\" Source: [FIXME: source]
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.\" Language: English
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.\"
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.TH "XIQUERYVERSION" "libmansuffix" "08/04/2010" "[FIXME: source]" "[FIXME: manual]"
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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.SH "NAME"
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XIQueryVersion \- announce and query the support XI2 version\&.
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.SH "SYNOPSIS"
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.sp
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.nf
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#include <X11/extensions/XInput2\&.h>
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.fi
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.sp
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.nf
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Status XIQueryVersion( Display *display,
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int *major_version_inout,
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int *minor_version_inout);
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.fi
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.sp
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.nf
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display
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Specifies the connection to the X server\&.
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.fi
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.sp
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.nf
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major_version_inout
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Specifies the client\'s supported XI2 version, and
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returns the server\'s supported version\&.
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.fi
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.sp
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.nf
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minor_version_inout
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Specifies the client\'s supported XI2 version, and
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returns the server\'s supported version\&.
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.fi
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.SH "DESCRIPTION"
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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XIQueryVersion announces the client\'s supported XI2 version to
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the server and returns server\'s supported X Input version\&. Clients
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are required to use XIQueryVersion instead of XGetExtensionVersion
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if they use XI2 calls\&. The server may treat a client differently
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depending on the supported version announced by the client\&.
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The major_version_inout must be 2 or greater, otherwise a BadValue
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error occurs\&.
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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If the server does not support XI2, XIQueryVersion returns BadRequest
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to the client\&. Otherwise, XIQueryVersion returns Success\&. In both
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cases major_version_inout and minor_version_inout are set to the
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server\'s supported version\&.
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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XIQueryVersion can generate a BadValue error\&.
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.fi
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.if n \{\
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.RE
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.\}
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.SH "EXAMPLES"
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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int rc;
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int major = 2;
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int minor = 0;
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.fi
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.if n \{\
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.RE
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.\}
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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rc = XIQueryVersion(dpy, &major, &minor);
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if (rc == Success)
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printf("XI2 supported\&. (%d\&.%d)\en", major, minor);
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else if (rc == BadRequest)
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printf("No XI2 support\&. (%d\&.%d only)\en", major, minor);
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else
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printf("Internal error\en");
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.fi
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.if n \{\
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.RE
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.\}
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.SH "DIAGNOSTICS"
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.sp
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.if n \{\
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.RS 4
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.\}
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.nf
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BadValue
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A value is outside of the permitted range\&.
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.fi
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.if n \{\
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.RE
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.\}
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