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 qwritepage                                                            QWIKC
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 Function       Changes the video page on which the QWIKC routines write.
 Syntax         void qwritepage( char pagenum );
 Remarks        Standard TC routines are dedicated to only video page 0.
                However, most video cards, except MDA and some 3270 PC, have
                more than one video page.  This procedure enables QWIKC
                routines to write to those pages by altering qscrofs and
                qvideo_page which is the current page on which QWIKC is
                writing. The number of video pages available is detected by
                qinit() and saved in maxpage.  The routine will only change
                pages when pagenum <= maxpage.
 Return value   None.
 Screens        All video pages.
 EOS            Unaltered.