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=pod
=head1 NAME
B<XPAXt: the XPA Interface to Xt (X Windows)>
=head1 SYNOPSIS
Describes how XPA access points can be added to X Toolkit (Xt) programs.
=head1 DESCRIPTION
XPA supports Xt programs: you can call XPANew(), XPACmdNew(), or
XPAInfoNew() within any C routine to add XPA server callbacks to an Xt
program. Since an Xt program has its own event loop call (i.e.,
XtAppMainLoop()), it therefore does not need or want to use the XPA
even loop. Thus, in order to add XPA access points to the standard Xt
event loop, the following routine should be called before entering the
loop:
int XPAXtAddInput(XtAppContext app, XPA xpa)
The XPAAddAddInput() routine will add XPA access points to the Xt event
loop by making calls to the standard XtAppAddInput() routine. (If the
XtAppContext argument is NULL, then the alternate XtAddInput() routine
is used instead.) If the xpa argument is NULL, then all active XPA
access points are added to the loop. If xpa is not NULL, then only
the specified access point is added. The latter type of call is used
to add new access points from within a callback, after the program has
entered the XtAppMainLoop() even loop.
=head1 SEE ALSO
See xpa(n) for a list of XPA help pages
=cut
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