plgpage: Get page parameters 

DESCRIPTION:

    Gets the current page configuration. The parameters are expressed in
    units that are specific to the current driver. For instance: screen
    drivers will usually interpret them as number of pixels, whereas
    printer drivers will usually use mm. 

SYNOPSIS:

plgpage(xp, yp, xleng, yleng, xoff, yoff)

ARGUMENTS:

    xp (PLFLT *, output) :    Pointer to number of pixels in x. 

    yp (PLFLT *, output) :    Pointer to number of pixels in y. 

    xleng (PLINT *, output) :     Pointer to x page length value. 

    yleng (PLINT *, output) :     Pointer to y page length value. 

    xoff (PLINT *, output) :    Pointer to x page offset. 

    yoff (PLINT *, output) :    Pointer to y page offset.