NAME

       XpQueryExtension  -  Queries  an  X Server to determine if it supports the X Print Service
       Extension, and if it does, what the offsets are for associated events and errors.

SYNOPSIS

             cc [ flag... ] file... -lXp [ library... ]
             #include <X11/extensions/Print.h>

       Bool XpQueryExtension ( display, event_base_return error_base_return )
             Display *display;
             int *event_base_return;
             int *error_base_return;

ARGUMENTS

       display
              Specifies a pointer to the Display structure; returned from XOpenDisplay.

       event_base_return
              The base value for X Print Service Extension events

       error_base_return
              The base value for X Print Service Extension errors.

DESCRIPTION

       XpQueryExtension determines if the X Print Service Extension is present. It  returns  True
       if  the  extension  is  supported,  otherwise False. If the extension is present, the base
       values for events and errors are returned, and can be used to decode  incoming  event  and
       error values.

       The  X  Print  Service  Extension  is initialized on the first call to any X Print Service
       function; there is no need to explicitly initialize the X Print Service Extension.