[Plplot-general] 'class plstream' has no member named 'gvpd'

[Albert K. <al...@ac...>]

In C++, I am trying to get the viewport limits using pls.gvpd, but I get
the error:

error: 'class plstream' has no member named 'gvpd'

using the code:
    PLFLT x0, x1, y0, y1;
    pls.gvpd( &x0, &x1, &y0, &y1 );

The class gvpd exists in the plstream.h header file, which I am including.
 The funny thing is that I can use pls.gvpw and other classes without a
problem.  Does this error reproduce for anyone else?  My current solution
is just to use 'plgvpd' to get the viewport limits, which isn't that big
of a deal.

Albert