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XkbQueryExtension(3)             XKB FUNCTIONS            XkbQueryExtension(3)

       XkbQueryExtension  -  Determines the compatibility of a library at run-

       Bool   XkbQueryExtension   (Display   *dpy,   int   *opcode_rtrn,   int
              *event_rtrn,    int    *error_rtrn,   int   *major_in_out,   int

       dpy    connection to the X server

              backfilled with the major extension opcode

              backfilled with the extension base event code

              backfilled with the extension base error code

              compile time lib major version in, server major version out

              compile time lib min version in, server minor version out

       Call XkbQueryExtension to check for the presence and  compatibility  of
       the extension in the server and to initialize the extension. Because of
       potential version mismatches, you  cannot  use  the  generic  extension
       mechanism functions ( XQueryExtension and XInitExtension ) for checking
       for the presence of, and initializing the Xkb extension.

       You must call XkbQueryExtension  or  XkbOpenDisplay  before  using  any
       other  Xkb  library interfaces, unless such usage is explicitly allowed
       in the interface description in  this  document.  The  exceptions  are:
       XkbIgnoreExtension,  XkbLibraryVersion,  and  a handful of audible-bell
       functions. You should not use any other Xkb functions if the  extension
       is  not  present  or is uninitialized. In general, calls to Xkb library
       functions made prior to initializing the Xkb extension cause  BadAccess
       protocol errors.

       XkbQueryExtension both determines whether a compatible Xkb extension is
       present in the X server  and  initializes  the  extension  when  it  is

       The  XkbQueryExtension function determines whether a compatible version
       of the X Keyboard Extension is present in the server. If  a  compatible
       extension  is  present,  XkbQueryExtension  returns True; otherwise, it
       returns False.

       If a compatible version of Xkb is present,  XkbQueryExtension  initial-
       izes  the  extension.  It  backfills  the major opcode for the keyboard
       extension in opcode_rtrn, the base event code in event_rtrn,  the  base
       error  code  in  error_rtrn, and the major and minor version numbers of
       the extension in major_in_out and minor_in_out.  The  major  opcode  is
       reported  in  the req_major fields of some Xkb events. For a discussion
       of the base event code.

       True           The XkbQueryExtension function returns True if it deter-
                      mines  a  compatible version of the X Keyboard Extension
                      is present in the server.

       False          The  XkbQueryExtension  function  returns  False  if  it
                      determines a compatible version of the X Keyboard Exten-
                      sion is not present in the server.

       XkbIgnoreExtension(3), XkbLibraryVersion(3), XkbOpenDisplay(3)

X Version 11                     libX11 1.6.2             XkbQueryExtension(3)

Czas wygenerowania: 0.00014 sek.

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