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XpQueryExtension(3Xp)          XPRINT FUNCTIONS          XpQueryExtension(3Xp)

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.

X Version 11                      libXp 1.0.3            XpQueryExtension(3Xp)