MPE_Num_colors
Gets the number of available colors 
Synopsis
#include "mpe.h" 
int MPE_Num_colors( handle, nc )
MPE_XGraph handle;
int        *nc;
Input Parameter
- handle  
-  MPE graphics handle
Output Parameter
- nc  
-  Number of colors available on the display.
Notes For Fortran Interface 
The Fortran interface to this routine is different from its C
counterpart and it has an additional argument, ierr, at the end
of the argument list, i.e. the returned function value (the error
code) in C interface is returned as the additional argument in
Fortran interface.  The Fortran interface is invoked with the
CALL statement.
All MPI and MPE objects, MPI_Comm, MPE_XGraph and MPE_Color, are
of type INTEGER in Fortran.
Location:../src/graphics/src/mpe_graphics.c