[Vis5d-users] Need quick help with a program

Hi,

I'm trying to use the vis5d api with my own gui interface and seemed
to be completely misunderstanding something.  The following, very
short, program is supposed to just open a v5d gridfile and display
a box and map for 30 seconds and then quit.  It does everything
successful except I cannot see anything.  I've been digging through
the api manual and the vis5d source and cannot figure out what
I'm missing.  Any ideas?

Bill

----------------------------------------------------------------------------
#include <stdio.h> 
#include <tk.h>
#include "v5d.h"
#include "api.h"

int main (int argc, char **argv)
{
  int  ret;
  int  c,d;
  char filename[128];

  if (argc != 2) {
    fprintf(stderr,"Usage: %s <vis5d file>\n",argv[0]);
    exit(1);
  } else {
    strcpy(filename,*(argv+1));
    printf("Opening \"%s\"\n",filename);
  }

  /* Initialize Vis5d */
  vis5d_initialize(0);                       /* Done once */
  vis5d_workers(0);                          /* All work done in foreground */
  vis5d_init_path("/usr/local/vis5d-5.2");   /* Location of MAP and TOPO */
  
  vis5d_init_window("My Test",500, 100, 600, 600);  
  c = vis5d_alloc_data_context();
  d = vis5d_alloc_display_context();
  vis5d_init_begin(c, d);
  vis5d_init_memory( c, 0 );

  if (vis5d_open_gridfile( c,filename , 0 )<0) {
    vis5d_terminate(1);
    exit(0);
  }
  vis5d_init_display_values(c, -1, d);  

  if (vis5d_init_data_end( c )<0) {
     printf("Error in vis5d_init_data_end\n");
     vis5d_terminate(1);
     exit(0);
  }

  vis5d_graphics_mode (d, VIS5D_BOX, VIS5D_ON); /* Turn on box */
  vis5d_graphics_mode (d, VIS5D_MAP, VIS5D_ON); /* Turn on map */
  vis5d_enable_sfc_map(d, VIS5D_ON);

  ret=vis5d_draw_frame(d,0); fprintf(stderr,"  draw_frame returned=%d\n",ret);
  ret=vis5d_swap_frame(d);   fprintf(stderr,"  swap_frame returned=%d\n",ret);

  sleep(30);  /* Sleep 30 seconds */
  vis5d_terminate(0);
  exit(0);
}