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XGETEXTENSIONVERSION(3)                                XGETEXTENSIONVERSION(3)

NAME
       XGetExtensionVersion - query the version of the input extension.

SYNOPSIS
       #include <X11/extensions/XInput.h>

       XExtensionVersion *XGetExtensionVersion( Display *display,
                                                char *name);

       display
              Specifies the connection to the X server.

       name
              Specifies the extension to be queried. The input
              extension name is defined in the header file XI.h.

DESCRIPTION
           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.

           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.

           You should use XFree to free the XExtensionVersion structure.

STRUCTURES
           This request returns an XExtensionVersion structure.

           typedef struct {
               int present;
               short major_version;
               short minor_version;
           } XExtensionVersion;

                                  09/15/2021           XGETEXTENSIONVERSION(3)